Initial Commit...

* Requires unlocked flash. (aka EZP cart has not had fw1.06 run on it yet). EZP flash can be unlocked with EZP_Recovery_Tool however requires desoldering WP# win on flash chip to do this.
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ApacheThunder 2024-11-12 19:26:10 -06:00 committed by GitHub
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342
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@ -0,0 +1,342 @@
GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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When we speak of free software, we are referring to freedom, not
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0. This License applies to any program or other work which contains
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<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

88
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#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif
export TARGET := EZDS_P
export TOPDIR := $(CURDIR)
export HBMENU_MAJOR := 1
export HBMENU_MINOR := 0
export HBMENU_PATCH := 2
VERSION := $(HBMENU_MAJOR).$(HBMENU_MINOR).$(HBMENU_PATCH)
# GMAE_ICON is the image used to create the game icon, leave blank to use default rule
GAME_ICON :=
# specify a directory which contains the nitro filesystem
# this is relative to the Makefile
NITRO_FILES := $(CURDIR)/NitroFS
# These set the information text in the nds file
#GAME_TITLE := My Wonderful Homebrew
#GAME_SUBTITLE1 := built with devkitARM
#GAME_SUBTITLE2 := http://devitpro.org
include $(DEVKITARM)/ds_rules
.PHONY: data ndsbootloader bootstub clean
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
all: ndsbootloader bootstub $(TARGET).nds
#---------------------------------------------------------------------------------
checkarm7:
$(MAKE) -C arm7
#---------------------------------------------------------------------------------
checkarm9:
$(MAKE) -C arm9
#---------------------------------------------------------------------------------
$(TARGET).nds : $(NITRO_FILES) arm7/$(TARGET).elf arm9/$(TARGET).elf
ndstool -c $(TARGET).nds -7 arm7/$(TARGET).elf -9 arm9/$(TARGET).elf \
-b $(CURDIR)/icon.bmp "hbmenu;$(VERSION);http://devkitpro.org" \
-g ABJJ 01 "EZFLASH NEW" -t banner.bin -d $(NITRO_FILES)
dlditool ntro.dldi $(TARGET).nds
data:
@mkdir -p data
ndsbootloader: data
$(MAKE) -C ndsbootloader LOADBIN=$(CURDIR)/data/load.bin
# exceptionstub: data
# $(MAKE) -C exception-stub STUBBIN=$(CURDIR)/data/exceptionstub.bin
bootstub: data
$(MAKE) -C bootstub
#---------------------------------------------------------------------------------
arm7/$(TARGET).elf:
$(MAKE) -C arm7
#---------------------------------------------------------------------------------
arm9/$(TARGET).elf: ndsbootloader
$(MAKE) -C arm9
#---------------------------------------------------------------------------------
clean:
$(MAKE) -C arm9 clean
$(MAKE) -C arm7 clean
$(MAKE) -C ndsbootloader clean
$(MAKE) -C bootstub clean
rm -rf data
rm -rf hbmenu
rm -f $(TARGET).nds
rm -f boot.nds
rm -f 00000000.app
rm -f _DS_MENU.DAT
# rm -f ACE3DS.nds
# rm -f ACE3DS.DAT

BIN
NitroFS/Nitro.img Normal file

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# EZP Dual Storage HBMenu
This is a modified build of HBMenu with UI enhancements but setup to act as a kernel/firmware replacement to EZFlash Parellel.
This can not be used on other carts and is targed specifically for this cart and is designed to be flashed to it via EZP Recovery tool.
The program will change boot behavior based on what button is held on boot:
* Holding no button on boot will show file browser.
* Holding A button will auto boot into GBA-Exploader. Specifically a new custom version with SuperCard and EZFlash Omega support.
* Holding B button will reboot console into GBA mode with gbaframe.bmp as the frame graphic.
* Holding Y button will boot GodMode9i.
* Holding X button will boot MaxMediaDock's slot1 rom for booting into MaxMediaDock devices on slot-2.
Also if an N-Card or N-Card clone USB slot-2 device is present on boot, the program will auto boot into nrio-usb-disk. A open source
file transfer program that makes use of the USB slot-2 device to connect flashcart's MicroSD storage to PC.
The repo this build of nrio-usb-disk can be found at: https://github.com/ApacheThunder/nrio-usb-disk
The original repo this build was forked from: https://github.com/asiekierka/nrio-usb-disk
This new app was created courtasy of Asiekirka.
Currently the gbaframe loader is setup to load GBA-Exploader compatible BMP files. Currently only setup to load frames from internal flash fat image.
Please refer to the fat image in NitroFS folder for that file if you wish to customize this.
This menu has a special feature in the filebrowser. You will notice that on boot it will show the file listing for the files found inside internal FAT image
stored in NitroFS. This is made possible with a special "NTRO" dldi driver that I wrote. This allows this cart to boot without a MicroSD card inserted!
However some actions will of coarse require the presense of a MicroSD card. (some of the included apps depend on that)
Assuming a MicroSD card is present on boot you can use shoulder buttons to navigate to MicroSD storage when wanting to boot files from MicroSD.
# Notes on how the EZFLash BIN file is constructed
The layout for the BIN file to be flashed via EZP Recovery Tool is reletively simple compared to other flashcarts.
This card does not support ntrboot due to hardcoded blowfish keys however you can flash entire 4MB flash chip with standard save commands.
EZP Recovery Tool can be found here: https://github.com/ApacheThunder/EZP_Recovery_Tool
This is a upgraded fork of NDS Backup Tool by Rudolph.
The full open sourced fork I've made for this tool can be found here: https://github.com/ApacheThunder/NDS_BACKUP_TOOL
As with other flashcarts. Arm9 secure area must be encrypted (though this program doesn't really use that region for anything).
Game code used in header is hardcoded as well due to hardcoded blowfish keys so do not attempt to change that.
Data at 0x1000 mostly pertain to the ntrboot payload this flashcart uses on 3DS.
Though the data found at 0x1200 is a copy of data found at found at 0x108400
EZP for some reason mirrors this data from 0x1200 into 0x108400 when rom reads happen instead of presening any data orginally found there in the flash.
This is easy to account for. Anytime you build a custom bin file for this cart, just copy a 0x400 chunk of data from 0x108400 over to 0x1200.
I have not tested if the cart still functions correctly with the 3DS ntrboot stuff missing. I would recommend ensuring this is still present.
Fortunately though this cart can't really be bricked if you flash bad data to it. (I've ensured you can still use EZP Recovery Tool regardless of what state it's in).
Do note though if you have run official firmware 1.06 or newer on this card, 0x0 to 0x7FFF is write protected.
To undo this you must desolder WP# of eeprom flash chip. While it's lifted, run EZP_Recovery_Tool and perform a save initialize via the restore menu.
Doing so will make the recovery tool run a special command to reset the write protection registers on the chip which can't be done without WP# pin being lifted.
However from my tests the cart won't mount/read the flash contents while it's in this state. So after doing the save intialize to trigger the reset of write protection,
you must solder it back down. Then go back into EZP Recovery Tool and flash a new bin file. This should now properly write the intended data to the first couple of blocks.
Do not run official fw 1.06 or newer on the cart again in the future. Doing so will require a repeat of this process if you want to flash a new custom rom to it agian.
# License
Note: While the GPL license allows you to distribute modified versions of this program it would be appreciated if any improvements are contributed to devkitPro. Ultimately the community as a whole is better served by having a single official source for tools, applications and libraries.
The latest sources may be obtained from devkitPro git using the command: `git clone git@github.com:devkitPro/nds-hb-menu.git`
```
Copyright (C) 2005 - 2017
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
```

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#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif
include $(DEVKITARM)/ds_rules
#---------------------------------------------------------------------------------
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# INCLUDES is a list of directories containing extra header files
# DATA is a list of directories containing binary files
# all directories are relative to this makefile
#---------------------------------------------------------------------------------
BUILD := build
SOURCES := source
INCLUDES := include build
DATA :=
#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH := -mthumb-interwork
CFLAGS := -g -Wall -O2 \
-mcpu=arm7tdmi -mtune=arm7tdmi -fomit-frame-pointer \
-ffast-math \
$(ARCH) $(INCLUDE) -DARM7
CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions
ASFLAGS := -g $(ARCH)
LDFLAGS = -specs=ds_arm7.specs -g $(ARCH) -Wl,-Map,$(notdir $*).map
LIBS := -lnds7
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS := $(LIBNDS)
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
export ARM7ELF := $(CURDIR)/$(TARGET).elf
export DEPSDIR := $(CURDIR)/$(BUILD)
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir))\
$(foreach dir,$(DATA),$(CURDIR)/$(dir))
CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
export LD := $(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export LD := $(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------
export OFILES_BIN := $(addsuffix .o,$(BINFILES))
export OFILES_SOURCES := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
export OFILES := $(OFILES_BIN) $(OFILES_SOURCES)
export HFILES := $(addsuffix .h,$(subst .,_,$(BINFILES)))
export INCLUDE := $(foreach dir,$(INCLUDES),-iquote $(CURDIR)/$(dir))\
$(foreach dir,$(LIBDIRS),-I$(dir)/include)\
-I$(CURDIR)/$(BUILD)
export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
.PHONY: $(BUILD) clean
#---------------------------------------------------------------------------------
$(BUILD):
@[ -d $@ ] || mkdir -p $@
@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
#---------------------------------------------------------------------------------
clean:
@echo clean ...
@rm -fr $(BUILD) $(TARGET).elf
#---------------------------------------------------------------------------------
else
DEPENDS := $(OFILES:.o=.d)
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(ARM7ELF) : $(OFILES)
@echo linking $(notdir $@)
@$(LD) $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
#---------------------------------------------------------------------------------
%.bin.o %_bin.h : %.bin
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@$(bin2o)
-include $(DEPENDS)
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------

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arm7/source/biosCalls.s Normal file
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.TEXT
.ARM
@---------------------------------------------------------------------------------------
.GLOBAL swiSwitchToGBAModeFixed
.func swiSwitchToGBAModeFixed
@---------------------------------------------------------------------------------------
swiSwitchToGBAModeFixed:
mov r2,#0x40
swi 0x1f0000
.endfunc
.end

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#include <nds.h>
volatile bool switchedMode = false;
volatile bool exitflag = false;
// libnds messed up the original SWI bios call ASM.
// They used r0 instead of r2. This reimplementation fixes that issue for now.
extern void swiSwitchToGBAModeFixed();
void powerButtonCB() { exitflag = true; }
void gbaMode() {
vu32 vr;
REG_IME = IME_DISABLE;
for(vr = 0; vr < 0x1000; vr++); // Wait ARM9
// writePowerManagement(PM_BACKLIGHT_LEVEL, (backlightLevel & 0x03));
writePowerManagement(PM_BACKLIGHT_LEVEL, (PersonalData->defaultBrightness & 0x03));
if (PersonalData->gbaScreen) {
writePowerManagement(PM_CONTROL_REG, PM_BACKLIGHT_BOTTOM | PM_SOUND_AMP);
} else {
writePowerManagement(PM_CONTROL_REG, PM_BACKLIGHT_TOP | PM_SOUND_AMP);
}
swiSwitchToGBAModeFixed();
while(1);
}
void fifoCheckHandler() {
if (!switchedMode) {
if (fifoCheckValue32(FIFO_USER_01)) {
switchedMode = true;
gbaMode();
}
}
}
void VblankHandler() { fifoCheckHandler(); }
void VcountHandler() { inputGetAndSend(); }
int main(void) {
readUserSettings();
ledBlink(0);
irqInit();
initClockIRQ();
fifoInit();
touchInit();
SetYtrigger(80);
installSystemFIFO();
irqSet(IRQ_VCOUNT, VcountHandler);
irqSet(IRQ_VBLANK, VblankHandler);
irqEnable(IRQ_VBLANK | IRQ_VCOUNT);
setPowerButtonCB(powerButtonCB);
/*if (REG_SNDEXTCNT != 0) {
i2cWriteRegister(0x4A, 0x12, 0x00); // Press power-button for auto-reset
i2cWriteRegister(0x4A, 0x70, 0x01); // Bootflag = Warmboot/SkipHealthSafety
}*/
while(1)swiWaitForVBlank();
return 0;
}

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#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
endif
include $(DEVKITARM)/ds_rules
#---------------------------------------------------------------------------------
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# INCLUDES is a list of directories containing extra header files
# DATA is a list of directories containing binary files embedded using bin2o
# GRAPHICS is a list of directories containing image files to be converted with grit
# all directories are relative to this makefile
#---------------------------------------------------------------------------------
BUILD := build
SOURCES := source
INCLUDES := include
DATA := ../data
GRAPHICS := gfx
#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH := -mthumb -mthumb-interwork
CFLAGS := -g -Wall -O2 \
-ffunction-sections -fdata-sections \
-march=armv5te -mtune=arm946e-s -fomit-frame-pointer\
-ffast-math \
$(ARCH)
CFLAGS += $(INCLUDE) -DARM9 -D_NO_BOOTSTUB_
CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions
ASFLAGS := -g $(ARCH)
LDFLAGS = -specs=ds_arm9.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
#---------------------------------------------------------------------------------
# any extra libraries we wish to link with the project
#---------------------------------------------------------------------------------
LIBS := -lfat -lnds9
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS := $(LIBNDS) $(PORTLIBS)
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
export ARM9ELF := $(CURDIR)/$(TARGET).elf
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir))\
$(foreach dir,$(DATA),$(CURDIR)/$(dir))\
$(foreach dir,$(GRAPHICS),$(CURDIR)/$(dir))
export DEPSDIR := $(CURDIR)/$(BUILD)
CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
PNGFILES := $(foreach dir,$(GRAPHICS),$(notdir $(wildcard $(dir)/*.png)))
BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
#---------------------------------------------------------------------------------
# use CXX for linking C++ projects, CC for standard C
#---------------------------------------------------------------------------------
ifeq ($(strip $(CPPFILES)),)
#---------------------------------------------------------------------------------
export LD := $(CC)
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
export LD := $(CXX)
#---------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------
export OFILES_BIN := $(addsuffix .o,$(BINFILES))
export OFILES_SOURCES := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
export OFILES := $(PNGFILES:.png=.o) $(OFILES_BIN) $(OFILES_SOURCES)
export HFILES := $(PNGFILES:.png=.h) $(addsuffix .h,$(subst .,_,$(BINFILES)))
export INCLUDE := $(foreach dir,$(INCLUDES),-iquote $(CURDIR)/$(dir))\
$(foreach dir,$(LIBDIRS),-I$(dir)/include)\
-I$(CURDIR)/$(BUILD)
export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
.PHONY: $(BUILD) clean
#---------------------------------------------------------------------------------
$(BUILD):
@[ -d $@ ] || mkdir -p $@
@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
#---------------------------------------------------------------------------------
clean:
@echo clean ...
@rm -fr $(BUILD) $(TARGET).elf
#---------------------------------------------------------------------------------
else
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(ARM9ELF) : $(OFILES)
@echo linking $(notdir $@)
@$(LD) $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
#---------------------------------------------------------------------------------
%.bin.o %_bin.h : %.bin
#---------------------------------------------------------------------------------
@echo $(notdir $<)
@$(bin2o)
#---------------------------------------------------------------------------------
# This rule creates assembly source files using grit
# grit takes an image file and a .grit describing how the file is to be processed
# add additional rules like this for each image extension
# you use in the graphics folders
#---------------------------------------------------------------------------------
%.s %.h: %.png %.grit
#---------------------------------------------------------------------------------
grit $< -fts -o$*
-include $(DEPSDIR)/*.d
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------

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#-------------------------------------------------------
# graphics in tile format
#-------------------------------------------------------
-gt
#-------------------------------------------------------
# output first 16 colors of the palette
#-------------------------------------------------------
-pw16
#-------------------------------------------------------
# no tile reduction
#-------------------------------------------------------
-mR!
#-------------------------------------------------------
# no map output
#-------------------------------------------------------
-m!
#-------------------------------------------------------
# graphics bit depth is 4 (16 color)
#-------------------------------------------------------
-gB4

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-gB8
-gTFFFFFF
# use lz77 compression
-gzl

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-W3
# disable alpha and set opaque bit for all pixels
-gT!
# use lz77 compression
-gzl
# 16 bit bitmap
-gB16

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# 8 bit bitmap
-gB8
# bitmap format
-gb

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/*-----------------------------------------------------------------
Copyright (C) 2005 - 2017
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
Claudio "sverx"
Michael "mtheall" Theall
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
#include <dirent.h>
#include <limits.h>
#include <stdio.h>
#include <string>
#include <string.h>
#include <unistd.h>
#include <utility>
#include <vector>
#include "args.h"
using namespace std;
static const string NDS_EXT = ".nds";
static const string ARG_EXT = ".argv";
static const string EXT_EXT = ".ext";
static const char EXT_DIR[] = "/nds";
static const char SEPARATORS[] = "\n\r\t ";
/* Checks if s1 ends with s2, ignoring case.
Returns true if it does, false otherwise.
*/
static bool strCaseEnd(const string& s1, const string& s2) {
return (s1.size() >= s2.size() &&
strcasecmp(s1.c_str() + s1.size() - s2.size(), s2.c_str()) == 0);
}
/* Parses the contents of the file given by filename into argarray. Arguments
are tokenized based on whitespace.
*/
static bool parseArgFileAll(const string& filename, vector<string>& argarray) {
FILE *argfile = fopen(filename.c_str(), "rb");
if (!argfile) {
return false;
}
char *line = NULL;
size_t lineSize = 0;
while (__getline(&line, &lineSize, argfile) >= 0) {
// Find comment and end string there
char *pstr = strchr(line, '#');
if (pstr) {
*pstr = '\0';
}
// Tokenize arguments
char *saveptr;
pstr = strtok_r(line, SEPARATORS, &saveptr);
while (pstr) {
argarray.emplace_back(pstr);
pstr = strtok_r(NULL, SEPARATORS, &saveptr);
}
}
if (line) {
free(line);
}
fclose(argfile);
return argarray.size() > 0;
}
/* Parses the argument file given by filename and returns the NDS file that it
* points to.
*/
static bool parseArgFileNds(const std::string& filename, std::string& ndsPath) {
bool success = false;
FILE *argfile = fopen(filename.c_str(), "rb");
if (!argfile) {
return false;
}
char *line = NULL;
size_t lineSize = 0;
while (__getline(&line, &lineSize, argfile) >= 0) {
char *pstr = NULL;
// Find comment and end string there
pstr = strchr(line, '#');
if (pstr) {
*pstr = '\0';
}
// Tokenize arguments
char *saveptr;
pstr = strtok_r(line, SEPARATORS, &saveptr);
if (pstr) {
// Only want the first token, which should be the NDS file name
ndsPath = pstr;
success = true;
break;
}
}
if (line) {
free(line);
}
fclose(argfile);
return success;
}
/* Converts a plain filename into an absolute path. If it's already an absolute
* path, it is returned as-is. If basePath is NULL, the current working directory
* is used.
* Returns true on success, false on failure.
*/
static bool toAbsPath(const string& filename, const char* basePath, string& filePath) {
// Copy existing absolute or empty paths
if (filename.size() == 0 || filename[0] == '/') {
filePath = filename;
return true;
}
if (basePath == NULL) {
// Get current working directory (uses C-strings)
vector<char> cwd(PATH_MAX);
if (getcwd (cwd.data(), cwd.size()) == NULL) {
// Path was too long, abort
return false;
}
// Copy CWD into path
filePath = cwd.data();
} else {
// Just copy the base path
filePath = basePath;
}
// Ensure there's a path separator
if (filePath.back() != '/') {
filePath += '/';
}
// Now append the filename
filePath += filename;
return true;
}
/* Convert a dataFilePath to the path of the ext file that specifies the
* handler.
* Returns true on success, false on failure
*/
static bool toExtPath(const string& dataFilePath, string& extFilePath) {
// Figure out what the file extension is
size_t extPos = dataFilePath.rfind('.');
if (extPos == string::npos) {
return false;
}
extPos += 1;
if (extPos >= dataFilePath.size()) {
return false;
}
// Construct handler path from extension. Handlers are in the EXT_DIR and
// end with EXT_EXT.
const string ext = dataFilePath.substr(extPos);
if (!toAbsPath(ext, EXT_DIR, extFilePath)) {
return false;
}
extFilePath += EXT_EXT;
return true;
}
bool argsNdsPath(const std::string& filePath, std::string& ndsPath) {
if (strCaseEnd(filePath, NDS_EXT)) {
ndsPath = filePath;
return true;
} else if (strCaseEnd(filePath, ARG_EXT)) {
return parseArgFileNds(filePath, ndsPath);
} else {
// This is a data file associated with a handler NDS by an ext file
string extPath;
if (!toExtPath(filePath, extPath)) {
return false;
}
string ndsRelPath;
if (!parseArgFileNds(extPath, ndsRelPath)) {
return false;
}
// Handler is in EXT_DIR
return toAbsPath(ndsRelPath, EXT_DIR, ndsPath);
}
return false;
}
bool argsFillArray(const string& filePath, vector<string>& argarray) {
// Ensure argarray is empty
argarray.clear();
if (strCaseEnd(filePath, NDS_EXT)) {
string absPath;
if (!toAbsPath(filePath, NULL, absPath)) {
return false;
}
argarray.push_back(move(absPath));
} else if (strCaseEnd(filePath, ARG_EXT)) {
if (!parseArgFileAll(filePath, argarray)) {
return false;
}
// Ensure argv[0] is absolute path
string absPath;
if (!toAbsPath(argarray[0], NULL, absPath)) {
return false;
}
argarray[0] = absPath;
} else {
// This is a data file associated with a handler NDS by an ext file
string extPath;
if (!toExtPath(filePath, extPath)) {
return false;
}
// Read the arg file for the extension handler
if (!parseArgFileAll(extPath, argarray)) {
return false;
}
// Extension handler relative path is relative to EXT_DIR, not CWD
string absPath;
if (!toAbsPath(argarray[0], EXT_DIR, absPath)) {
return false;
}
argarray[0] = absPath;
// Add the data filename to the end. Its path is relative to CWD.
if (!toAbsPath(filePath, NULL, absPath)) {
return false;
}
argarray.push_back(move(absPath));
}
return argarray.size() > 0 && strCaseEnd(argarray[0], NDS_EXT);
}
vector<string> argsGetExtensionList() {
vector<string> extensionList;
// Always supported files: NDS binaries and predefined argument lists
extensionList.push_back(NDS_EXT);
extensionList.push_back(ARG_EXT);
// Get a list of extension files: argument lists associated with a file type
DIR *dir = opendir (EXT_DIR);
if (dir) {
for (struct dirent* dirent = readdir(dir); dirent != NULL; dirent = readdir(dir)) {
// Add the name component of all files ending with EXT_EXT to the list
if (dirent->d_type != DT_REG) {
continue;
}
if (dirent->d_name[0] != '.' && strCaseEnd(dirent->d_name, EXT_EXT)) {
size_t extPos = strlen(dirent->d_name) - EXT_EXT.size();
dirent->d_name[extPos] = '\0';
extensionList.push_back(dirent->d_name);
}
}
closedir(dir);
}
return extensionList;
}

47
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/*-----------------------------------------------------------------
Copyright (C) 2005 - 2017
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
Claudio "sverx"
Michael "mtheall" Theall
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
#ifndef ARGS_H
#define ARGS_H
#include <string>
#include <vector>
/* Convert a file path of any type (e.g. .nds or .argv) into a path to the NDS
* file to be opened. The returned path may be absolute or relative to the
* current working directory.
* Returns true on success, false on failure.
*/
bool argsNdsPath(const std::string& filePath, std::string& ndsPath);
/* Convert a file path of any type into an argument array by filling the array
* that is passed in. The first argument will be the full path to an NDS file.
* Returns true on success, false on failure.
*/
bool argsFillArray(const std::string& filePath, std::vector<std::string>& argarray);
/* Return a list of all file extensions that can be browsed and opened.
*/
std::vector<std::string> argsGetExtensionList();
#endif // ARGS_H

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.arm
.global hbNoIcon_bin
hbNoIcon_bin: .incbin "../include/hbNoIcon.bin"

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arm9/source/ez5n.c Normal file
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// SPDX-License-Identifier: CC0-1.0
//
// SPDX-FileContributor: Antonio Niño Díaz, 2023
// SPDX-FileContributor: lifehackerhansol, 2024
#include <nds/ndstypes.h>
#include "ioezp.h"
#include "libtwl_card.h"
#define EZChipID (u16)0x0FC2
// Initialize the driver. Returns true on success.
bool ez_startup(void) { return (ioEZP_GetChipID() == EZChipID); }
// Returns true if a card is present and initialized.
bool ez_is_inserted(void) { return (ioEZP_GetChipID() == EZChipID); }
// Reads 512 byte sectors into a buffer that may be unaligned. Returns true on
// success.
bool ez_read_sectors(uint32_t sector, uint32_t num_sectors, void *buffer) {
ioEZP_SDReadSectors(sector, num_sectors, buffer);
return true;
}
// Writes 512 byte sectors from a buffer that may be unaligned. Returns true on
// success.
bool ez_write_sectors(uint32_t sector, uint32_t num_sectors, const void *buffer) {
ioEZP_SDWriteSectors(sector, num_sectors, buffer);
return true;
}
// Clear error flags from the card. Returns true on success.
bool ez_clear_status(void) { return true; }
// Shutdowns the card. This may never be called.
bool ez_shutdown(void) { return true; }

30
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#ifndef EZ5N_H
#define EZ5N_H
#ifdef __cplusplus
extern "C" {
#endif
bool ez_startup(void);
bool ez_is_inserted(void);
bool ez_read_sectors(uint32_t sector, uint32_t num_sectors, void *buffer);
bool ez_write_sectors(uint32_t sector, uint32_t num_sectors, const void *buffer);
bool ez_clear_status(void);
bool ez_shutdown(void);
const DISC_INTERFACE io_ez5n = {
0x455A354E, // "EZ5N"
(FEATURE_MEDIUM_CANREAD | FEATURE_MEDIUM_CANWRITE | FEATURE_SLOT_NDS),
(FN_MEDIUM_STARTUP)&ez_startup,
(FN_MEDIUM_ISINSERTED)&ez_is_inserted,
(FN_MEDIUM_READSECTORS)&ez_read_sectors,
(FN_MEDIUM_WRITESECTORS)&ez_write_sectors,
(FN_MEDIUM_CLEARSTATUS)&ez_clear_status,
(FN_MEDIUM_SHUTDOWN)&ez_shutdown
};
#ifdef __cplusplus
}
#endif
#endif // EZ5N_H

248
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/*-----------------------------------------------------------------
Copyright (C) 2005 - 2017
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
Claudio "sverx"
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
#include "file_browse.h"
#include <vector>
#include <algorithm>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <dirent.h>
#include <nds.h>
#include <fat.h>
#include "iconTitle.h"
#include "ez5n.h"
#define SCREEN_COLS 30
#define ENTRIES_PER_SCREEN 20
#define ENTRIES_START_ROW 2
#define ENTRY_PAGE_LENGTH 10
using namespace std;
extern void gbaMode();
bool EZ5NFatInit = false;
bool usingInternalFat = true;
struct DirEntry {
string name;
bool isDirectory;
};
bool nameEndsWith (const string& name, const vector<string> extensionList) {
if (name.size() == 0) return false;
if (name.front() == '.') return false;
if (extensionList.size() == 0) return true;
for (int i = 0; i < (int)extensionList.size(); i++) {
const string ext = extensionList.at(i);
if ( strcasecmp (name.c_str() + name.size() - ext.size(), ext.c_str()) == 0) return true;
}
return false;
}
bool dirEntryPredicate (const DirEntry& lhs, const DirEntry& rhs) {
if (!lhs.isDirectory && rhs.isDirectory)return false;
if (lhs.isDirectory && !rhs.isDirectory)return true;
return strcasecmp(lhs.name.c_str(), rhs.name.c_str()) < 0;
}
void getDirectoryContents (vector<DirEntry>& dirContents, const vector<string> extensionList) {
struct stat st;
dirContents.clear();
DIR *pdir = opendir (".");
if (pdir == NULL) {
iprintf ("Unable to open the directory.\n");
} else {
while(true) {
DirEntry dirEntry;
struct dirent* pent = readdir(pdir);
if(pent == NULL) break;
stat(pent->d_name, &st);
dirEntry.name = pent->d_name;
dirEntry.isDirectory = (st.st_mode & S_IFDIR) ? true : false;
if (dirEntry.name.compare(".") != 0 && (dirEntry.isDirectory || nameEndsWith(dirEntry.name, extensionList))) {
dirContents.push_back (dirEntry);
}
}
closedir(pdir);
}
sort(dirContents.begin(), dirContents.end(), dirEntryPredicate);
}
void getDirectoryContents (vector<DirEntry>& dirContents) {
vector<string> extensionList;
getDirectoryContents (dirContents, extensionList);
}
void showDirectoryContents (const vector<DirEntry>& dirContents, int startRow) {
char path[PATH_MAX];
getcwd(path, PATH_MAX);
// Clear the screen
consoleClear();
// Print the path
if (strlen(path) < SCREEN_COLS) {
iprintf ("%s", path);
} else {
iprintf ("%s", path + strlen(path) - SCREEN_COLS);
}
// Move to 2nd row
iprintf ("\x1b[1;0H");
// Print line of dashes
iprintf ("------------------------------");
// Print directory listing
for (int i = 0; i < ((int)dirContents.size() - startRow) && i < ENTRIES_PER_SCREEN; i++) {
const DirEntry* entry = &dirContents.at(i + startRow);
char entryName[SCREEN_COLS + 1];
// Set row
iprintf ("\x1b[%d;0H", i + ENTRIES_START_ROW);
if (entry->isDirectory) {
strncpy (entryName, entry->name.c_str(), SCREEN_COLS);
entryName[SCREEN_COLS - 3] = '\0';
iprintf (" [%s]", entryName);
} else {
strncpy (entryName, entry->name.c_str(), SCREEN_COLS);
entryName[SCREEN_COLS - 1] = '\0';
iprintf (" %s", entryName);
}
}
}
string browseForFile (const vector<string>& extensionList) {
int pressed = 0;
int screenOffset = 0;
int fileOffset = 0;
vector<DirEntry> dirContents;
RESET:
getDirectoryContents (dirContents, extensionList);
showDirectoryContents (dirContents, screenOffset);
while (true) {
// Clear old cursors
for (int i = ENTRIES_START_ROW; i < ENTRIES_PER_SCREEN + ENTRIES_START_ROW; i++) {
iprintf ("\x1b[%d;0H ", i);
}
// Show cursor
iprintf ("\x1b[%d;0H*", fileOffset - screenOffset + ENTRIES_START_ROW);
iconTitleUpdate (dirContents.at(fileOffset).isDirectory, dirContents.at(fileOffset).name);
// Power saving loop. Only poll the keys once per frame and sleep the CPU if there is nothing else to do
do {
scanKeys();
pressed = keysDownRepeat();
swiWaitForVBlank();
} while (!pressed);
if ((pressed & KEY_L) || (pressed & KEY_R)) {
if (usingInternalFat) {
if (!EZ5NFatInit)EZ5NFatInit = fatMountSimple("ez5n", &io_ez5n);
if (EZ5NFatInit) {
if (access("ez5n:/", F_OK) == 0)chdir("ez5n:/");
usingInternalFat = false;
pressed = 0;
screenOffset = 0;
fileOffset = 0;
goto RESET;
}
} else {
usingInternalFat = true;
if (access("fat:/", F_OK) == 0)chdir("fat:/");
pressed = 0;
screenOffset = 0;
fileOffset = 0;
goto RESET;
}
}
if (pressed & KEY_UP) fileOffset -= 1;
if (pressed & KEY_DOWN) fileOffset += 1;
if (pressed & KEY_LEFT) fileOffset -= ENTRY_PAGE_LENGTH;
if (pressed & KEY_RIGHT)fileOffset += ENTRY_PAGE_LENGTH;
if (fileOffset < 0)fileOffset = dirContents.size() - 1; // Wrap around to bottom of list
if (fileOffset > ((int)dirContents.size() - 1))fileOffset = 0; // Wrap around to top of list
// Scroll screen if needed
if (fileOffset < screenOffset) {
screenOffset = fileOffset;
showDirectoryContents (dirContents, screenOffset);
}
if (fileOffset > screenOffset + ENTRIES_PER_SCREEN - 1) {
screenOffset = fileOffset - ENTRIES_PER_SCREEN + 1;
showDirectoryContents (dirContents, screenOffset);
}
if (pressed & KEY_A) {
DirEntry* entry = &dirContents.at(fileOffset);
if (entry->isDirectory) {
iprintf("Entering directory\n");
// Enter selected directory
chdir (entry->name.c_str());
getDirectoryContents (dirContents, extensionList);
screenOffset = 0;
fileOffset = 0;
showDirectoryContents (dirContents, screenOffset);
} else {
// Clear the screen
consoleClear();
// Return the chosen file
return entry->name;
}
}
if (pressed & KEY_B) {
// Go up a directory
chdir ("..");
getDirectoryContents (dirContents, extensionList);
screenOffset = 0;
fileOffset = 0;
showDirectoryContents (dirContents, screenOffset);
}
if (pressed & KEY_X) {
gbaMode();
while(1)swiWaitForVBlank();
}
}
}

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/*-----------------------------------------------------------------
Copyright (C) 2005 - 2017
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
#ifndef FILE_BROWSE_H
#define FILE_BROWSE_H
#include <string>
#include <vector>
std::string browseForFile (const std::vector<std::string>& extensionList);
#endif //FILE_BROWSE_H

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/*-----------------------------------------------------------------
Copyright (C) 2005 - 2013
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
Claudio "sverx"
Michael "mtheall" Theall
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
#include <nds.h>
#include <stdio.h>
#include <ctype.h>
#include <sys/stat.h>
#include "args.h"
#include "hbmenu_banner.h"
#include "font6x8.h"
#define TITLE_POS_X (13*8)
#define TITLE_POS_Y (10*8)
#define ICON_POS_X 26
#define ICON_POS_Y 79
#define TEXT_WIDTH ((22-4)*8/6)
static int bg2, bg3;
static u16 *sprite;
static tNDSBanner banner;
extern tNDSBanner hbNoIcon_bin;
static inline void writecharRS (int row, int col, u16 car) {
// get map pointer
u16 *gfx = bgGetMapPtr(bg2);
// get old pair of values from VRAM
u16 oldval = gfx[row*(512/8/2)+(col/2)];
// clear the half we will update
oldval &= (col%2) ? 0x00FF : 0xFF00;
// apply the updated half
oldval |= (col%2) ? (car<<8) : car;
// write back to VRAM
gfx[row*(512/8/2)+col/2] = oldval;
}
static inline void writeRow (int rownum, const char* text) {
int i,len,p=0;
len=strlen(text);
if (len>TEXT_WIDTH)
len=TEXT_WIDTH;
// clear left part
for (i=0;i<(TEXT_WIDTH-len)/2;i++)
writecharRS (rownum, i, 0);
// write centered text
for (i=(TEXT_WIDTH-len)/2;i<((TEXT_WIDTH-len)/2+len);i++)
writecharRS (rownum, i, text[p++]-' ');
// clear right part
for (i=((TEXT_WIDTH-len)/2+len);i<TEXT_WIDTH;i++)
writecharRS (rownum, i, 0);
}
static inline void clearIcon (void) { dmaFillHalfWords(0, sprite, sizeof(banner.icon)); }
void iconTitleInit (void) {
// initialize video mode
videoSetMode(MODE_4_2D);
// initialize VRAM banks
vramSetBankA(VRAM_A_MAIN_BG);
vramSetBankB(VRAM_B_MAIN_SPRITE);
// initialize bg2 as a rotation background and bg3 as a bmp background
// http://mtheall.com/vram.html#T2=3&RNT2=96&MB2=3&TB2=0&S2=2&T3=6&MB3=1&S3=1
bg2 = bgInit(2, BgType_Rotation, BgSize_R_512x512, 3, 0);
bg3 = bgInit(3, BgType_Bmp16, BgSize_B16_256x256, 1, 0);
// initialize rotate, scale, and scroll
bgSetRotateScale(bg3, 0, 1<<8, 1<<8);
bgSetScroll(bg3, 0, 0);
bgSetRotateScale(bg2, 0, 8*(1<<8)/6, 1<<8);
bgSetScroll(bg2, -TITLE_POS_X, -TITLE_POS_Y);
// clear bg2's map: 512x512 pixels is 64x64 tiles is 4KB
dmaFillHalfWords(0, bgGetMapPtr(bg2), 4096);
// load compressed font into bg2's tile data
decompress(font6x8Tiles, bgGetGfxPtr(bg2), LZ77Vram);
// load compressed bitmap into bg3
decompress(hbmenu_bannerBitmap, bgGetGfxPtr(bg3), LZ77Vram);
// load font palette
dmaCopy(font6x8Pal, BG_PALETTE, font6x8PalLen);
// apply the bg changes
bgUpdate();
// initialize OAM
oamInit(&oamMain, SpriteMapping_1D_128, false);
sprite = oamAllocateGfx(&oamMain, SpriteSize_32x32, SpriteColorFormat_16Color);
dmaFillHalfWords(0, sprite, sizeof(banner.icon));
oamSet(&oamMain, 0, ICON_POS_X, ICON_POS_Y, 0, 0,
SpriteSize_32x32, SpriteColorFormat_16Color, sprite,
-1, 0, 0, 0, 0, 0);
// oam can only be updated during vblank
swiWaitForVBlank();
oamUpdate(&oamMain);
// Load Default Icon.
DC_FlushAll();
dmaCopy(hbNoIcon_bin.icon, sprite, sizeof(hbNoIcon_bin.icon));
dmaCopy(hbNoIcon_bin.palette, SPRITE_PALETTE, sizeof(hbNoIcon_bin.palette));
// everything's ready :)
writeRow (1,"===>>> HBMenu+ <<<===");
}
static void loadDefaultIcon() {
DC_FlushAll();
dmaCopy(hbNoIcon_bin.icon, sprite, sizeof(hbNoIcon_bin.icon));
dmaCopy(hbNoIcon_bin.palette, SPRITE_PALETTE, sizeof(hbNoIcon_bin.palette));
}
void iconTitleUpdate (int isdir, const std::string& name) {
writeRow (0, name.c_str());
writeRow (1, "");
writeRow (2, "");
writeRow (3, "");
if (isdir) {
// text
writeRow (2, "[directory]");
// icon
clearIcon();
loadDefaultIcon();
} else {
std::string ndsPath;
if (!argsNdsPath(name, ndsPath)) {
writeRow(2, "(invalid argv or NDS file!)");
clearIcon();
loadDefaultIcon();
return;
}
unsigned int Icon_title_offset;
// open file for reading info
FILE *fp = fopen (ndsPath.c_str(), "rb");
if (!fp) {
// text
writeRow (2,"(can't open file!)");
// icon
clearIcon();
loadDefaultIcon();
fclose (fp);
return;
}
if (fseek (fp, offsetof(tNDSHeader, bannerOffset), SEEK_SET) != 0 || fread (&Icon_title_offset, sizeof(int), 1, fp) != 1) {
// text
writeRow (2, "(can't read file!)");
// icon
clearIcon();
loadDefaultIcon();
fclose (fp);
return;
}
if (Icon_title_offset == 0) {
// text
writeRow (2, "(no title/icon)");
// icon
clearIcon();
loadDefaultIcon();
fclose (fp);
return;
}
if (fseek (fp, Icon_title_offset, SEEK_SET) != 0 || fread (&banner, sizeof(banner), 1, fp) != 1) {
// text
writeRow (2,"(can't read icon/title!)");
// icon
clearIcon();
loadDefaultIcon();
fclose (fp);
return;
}
// close file!
fclose (fp);
// turn unicode into ascii (kind of)
// and convert 0x0A into 0x00
char *p = (char*)banner.titles[1];
int rowOffset = 1;
int lineReturns = 0;
for (size_t i = 0; i < sizeof(banner.titles[1]); i = i+2) {
if ((p[i] == 0x0A) || (p[i] == 0xFF)) {
p[i/2] = 0;
lineReturns++;
} else {
p[i/2] = p[i];
}
}
if (lineReturns < 2)rowOffset = 2; // Recenter if bennar has less 2 or less rows of text maintaining empty row gap between nds file name and nds banner.
// text
for (size_t i = 0; i < 3; ++i) {
writeRow(i+rowOffset, p);
p += strlen(p) + 1;
}
// icon
DC_FlushAll();
dmaCopy(banner.icon, sprite, sizeof(banner.icon));
dmaCopy(banner.palette, SPRITE_PALETTE, sizeof(banner.palette));
}
}

25
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/*-----------------------------------------------------------------
Copyright (C) 2005 - 2013
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
Claudio "sverx"
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
#include <string>
void iconTitleInit (void);
void iconTitleUpdate (int isdir, const std::string& name);

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/*
EZ-Flash Parallel
Card IO routines
Copyright (C) 2023-2024 lifehackerhansol
SPDX-License-Identifier: Zlib
*/
#include <nds/card.h>
#include <nds/ndstypes.h>
#include "ioezp.h"
#include "libtwl_card.h"
static u32 ioEZP_ReadLengthCtrlValues[4] = {IOEZP_CTRL_READ_SD_512, IOEZP_CTRL_READ_SD_1024, IOEZP_CTRL_READ_SD_2048, IOEZP_CTRL_READ_SD_2048};
static inline void ioEZP_ReadCardData(u64 command, u32 flags, void *buffer, u32 length)
{
card_romSetCmd(command);
card_romStartXfer(flags, false);
if ((u32)buffer & 3)
card_romCpuReadUnaligned((u8 *)buffer, length);
else
card_romCpuRead(buffer, length);
}
static inline void ioEZP_WriteCardData(u64 command, u32 flags, const void *buffer, u32 length)
{
card_romSetCmd(command);
card_romStartXfer(flags, false);
if ((u32)buffer & 3)
card_romCpuWriteUnaligned((u8 *)buffer, length);
else
card_romCpuWrite(buffer, length);
}
static inline u32 ioEZP_SendCommand(const u64 command, u32 latency)
{
card_romSetCmd(command);
card_romStartXfer((IOEZP_CTRL_SEND_CMD | MCCNT1_LATENCY1(latency)), false);
card_romWaitDataReady();
return card_romGetData();
}
u32 ioEZP_GetChipID(void)
{
return ioEZP_SendCommand((((u64)CARD_CMD_DATA_CHIPID) << 56) | 1ull, 0x200);
}
void ioEZP_SDReadSectors(u32 sector, u32 num_sectors, void *buffer)
{
u32 word_count;
while(num_sectors > 0)
{
word_count = num_sectors >= 4 ? 4 : num_sectors;
// wait until data is ready
// request should return 0 when ready to access
while(ioEZP_SendCommand(IOEZP_CMD_SD_READ_REQUEST(sector, word_count), 0xC8));
ioEZP_ReadCardData(IOEZP_CMD_SD_READ_DATA, ioEZP_ReadLengthCtrlValues[word_count - 1], buffer, 128 * word_count);
sector += word_count;
num_sectors -= word_count;
buffer = (u8*)buffer + (0x200 * word_count);
}
}
void ioEZP_SDWriteSectors(u32 sector, u32 num_sectors, const void *buffer)
{
u32 word_count;
while(num_sectors > 0)
{
word_count = num_sectors >= 4 ? 4 : num_sectors;
// Write to buffer
for(u32 i=0; i < word_count; i++)
{
ioEZP_WriteCardData(IOEZP_CMD_SD_WRITE_BUFFER(i), (IOEZP_CTRL_WRITE_SD | MCCNT1_LEN_512), buffer, 128);
buffer = (u8*)buffer + 0x200;
}
// Flush to disk
// Should return 0 when done
while(ioEZP_SendCommand(IOEZP_CMD_SD_WRITE_FLUSH(sector, word_count), 0x190));
sector += word_count;
num_sectors -= word_count;
}
}

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/*
EZ-Flash Parallel
Card IO routines
Copyright (C) 2023-2024 lifehackerhansol
SPDX-License-Identifier: Zlib
*/
#pragma once
#include <nds/ndstypes.h>
#ifndef NULL
#define NULL 0
#endif
// EZParallel defines
// EZParallel MCCNT1 flags
#define IOEZP_CTRL_BASE (MCCNT1_ENABLE | MCCNT1_RESET_OFF | MCCNT1_CMD_SCRAMBLE | MCCNT1_CLOCK_SCRAMBLER | MCCNT1_READ_DATA_DESCRAMBLE)
#define IOEZP_CTRL_SEND_CMD (IOEZP_CTRL_BASE | MCCNT1_LATENCY2(24) | MCCNT1_LEN_4)
#define IOEZP_CTRL_READ_SD (IOEZP_CTRL_BASE | MCCNT1_LATENCY2(26) | MCCNT1_LATENCY1(0))
#define IOEZP_CTRL_WRITE_SD (IOEZP_CTRL_BASE | MCCNT1_DIR_WRITE | MCCNT1_LATENCY2(26) | MCCNT1_LATENCY1(0))
#define IOEZP_CTRL_READ_SD_512 (IOEZP_CTRL_READ_SD | MCCNT1_LEN_512)
#define IOEZP_CTRL_READ_SD_1024 (IOEZP_CTRL_READ_SD | MCCNT1_LEN_1024)
#define IOEZP_CTRL_READ_SD_2048 (IOEZP_CTRL_READ_SD | MCCNT1_LEN_2048)
// EZParallel MCCMDs
#define IOEZP_CMD_SD_READ_DATA (0xBAull << 56)
// this reads 4 sectors???
static inline u64 IOEZP_CMD_SD_READ_REQUEST(u32 sector, u8 num_sectors)
{
return (0xB9ull << 56) | ((u64)num_sectors << 32) | ((u64)sector);
}
// Writing seems to support up to 0x800 bytes
// It appears to work from an internal buffer, and flushes afterwards.
static inline u64 IOEZP_CMD_SD_WRITE_BUFFER(u8 buffer_index)
{
return (0xBBull << 56) | (1ull << 32) | ((u64)buffer_index);
}
static inline u64 IOEZP_CMD_SD_WRITE_FLUSH(u32 sector, u8 num_sectors)
{
return (0xBCull << 56) | ((u64)num_sectors << 32) | ((u64)sector);
}
// user API
u32 ioEZP_GetChipID();
void ioEZP_SDReadSectors(u32 sector, u32 num_sectors, void* buffer);
void ioEZP_SDWriteSectors(u32 sector, u32 num_sectors, const void* buffer);

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/*
This file is a part of libtwl (card.c)
Copyright (C) 2023 Gericom
SPDX-License-Identifier: Zlib
*/
#include <nds/ndstypes.h>
#include "libtwl_card.h"
void card_romCpuRead(u32* dst, u32 words)
{
u32* target = dst + words;
do
{
// Read data if available
if (card_romIsDataReady())
{
u32 data = card_romGetData();
if (dst < target)
*dst++ = data;
}
} while (card_romIsBusy());
}
void card_romCpuReadUnaligned(u8* dst, u32 words)
{
u8* target = dst + (words << 2);
do
{
// Read data if available
if (card_romIsDataReady())
{
u32 data = card_romGetData();
if (dst < target)
{
*dst++ = data & 0xFF;
*dst++ = (data >> 8) & 0xFF;
*dst++ = (data >> 16) & 0xFF;
*dst++ = (data >> 24) & 0xFF;
}
}
} while (card_romIsBusy());
}
void card_romCpuWrite(const u32* src, u32 words)
{
u32 data = 0;
const u32* target = src + words;
do
{
// Write data if ready
if (card_romIsDataReady())
{
if (src < target)
data = *src++;
card_romSetData(data);
}
} while (card_romIsBusy());
}
void card_romCpuWriteUnaligned(const u8* src, u32 words)
{
u32 data = 0;
const u8* target = src + (words << 2);
do
{
// Write data if ready
if (card_romIsDataReady())
{
if (src < target)
{
data = src[0] | (src[1] << 8) | (src[2] << 16) | (src[3] << 24);
src += 4;
}
card_romSetData(data);
}
} while (card_romIsBusy());
}

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/*
This file is a part of libtwl (card.h)
Copyright (C) 2023 Gericom
SPDX-License-Identifier: Zlib
*/
#pragma once
#define REG_MCCNT0 (*(vu16*)0x040001A0)
#define REG_MCD0 (*(vu16*)0x040001A2)
#define REG_MCCNT1 (*(vu32*)0x040001A4)
#define REG_MCCMD0 (*(vu32*)0x040001A8)
#define REG_MCCMD1 (*(vu32*)0x040001AC)
#define REG_MCSCR0 (*(vu32*)0x040001B0)
#define REG_MCSCR1 (*(vu32*)0x040001B4)
#define REG_MCSCR2 (*(vu32*)0x040001B8)
#define REG_MCD1 (*(vu32*)0x04100010)
// REG_MCCNT0
#define MCCNT0_SPI_RATE_4_19_MHZ 0
#define MCCNT0_SPI_RATE_2_09_MHZ 1
#define MCCNT0_SPI_RATE_1_05_MHZ 2
#define MCCNT0_SPI_RATE_524_KHZ 3
#define MCCNT0_SPI_HOLD_CS (1 << 6)
#define MCCNT0_SPI_BUSY (1 << 7)
#define MCCNT0_MODE_MASK (1 << 13)
#define MCCNT0_MODE_ROM (0 << 13)
#define MCCNT0_MODE_SPI (1 << 13)
#define MCCNT0_ROM_XFER_IRQ (1 << 14)
#define MCCNT0_ENABLE (1 << 15)
// REG_MCCNT1
#define MCCNT1_LATENCY1_SHIFT 0
#define MCCNT1_LATENCY1_MASK 0x1FFF
#define MCCNT1_LATENCY1(x) (x)
#define MCCNT1_READ_DATA_DESCRAMBLE (1 << 13)
#define MCCNT1_CLOCK_SCRAMBLER (1 << 14)
#define MCCNT1_APPLY_SCRAMBLE_SEED (1 << 15)
#define MCCNT1_LATENCY2_SHIFT 16
#define MCCNT1_LATENCY2_MASK 0x3F0000
#define MCCNT1_LATENCY2(x) (((x) << MCCNT1_LATENCY2_SHIFT) & MCCNT1_LATENCY2_MASK)
#define MCCNT1_CMD_SCRAMBLE (1 << 22)
#define MCCNT1_DATA_READY (1 << 23)
#define MCCNT1_LEN_0 (0 << 24)
#define MCCNT1_LEN_512 (1 << 24)
#define MCCNT1_LEN_1024 (2 << 24)
#define MCCNT1_LEN_2048 (3 << 24)
#define MCCNT1_LEN_4096 (4 << 24)
#define MCCNT1_LEN_8192 (5 << 24)
#define MCCNT1_LEN_16384 (6 << 24)
#define MCCNT1_LEN_4 (7 << 24)
#define MCCNT1_CLK_6_7_MHZ (0 << 27)
#define MCCNT1_CLK_4_2_MHZ (1 << 27)
#define MCCNT1_LATENCY_CLK (1 << 28)
#define MCCNT1_RESET_ON (0 << 29)
#define MCCNT1_RESET_OFF (1 << 29)
#define MCCNT1_DIR_READ (0 << 30)
#define MCCNT1_DIR_WRITE (1 << 30)
#define MCCNT1_ENABLE (1 << 31)
#ifdef __cplusplus
extern "C"
{
#endif
static inline void card_romSetCmd(u64 cmd)
{
*(vu64*)&REG_MCCMD0 = __builtin_bswap64(cmd);
}
static inline bool card_romIsDataReady(void)
{
return REG_MCCNT1 & MCCNT1_DATA_READY;
}
static inline void card_romWaitDataReady(void)
{
while(!card_romIsDataReady());
}
static inline u32 card_romGetData(void)
{
return REG_MCD1;
}
static inline void card_romSetData(u32 data)
{
REG_MCD1 = data;
}
static inline bool card_romIsBusy(void)
{
return REG_MCCNT1 & MCCNT1_ENABLE;
}
static inline void card_romWaitBusy(void)
{
while(card_romIsBusy());
}
static inline void card_romStartXfer(u32 settings, bool irq)
{
REG_MCCNT0 = (REG_MCCNT0 & ~(MCCNT0_MODE_MASK | MCCNT0_ROM_XFER_IRQ)) | MCCNT0_MODE_ROM | (irq ? MCCNT0_ROM_XFER_IRQ : 0) | MCCNT0_ENABLE;
REG_MCCNT1 = MCCNT1_ENABLE | settings;
}
void card_romCpuRead(u32* dst, u32 len);
void card_romCpuReadUnaligned(u8* dst, u32 words);
void card_romCpuWrite(const u32* src, u32 words);
void card_romCpuWriteUnaligned(const u8* src, u32 words);
#ifdef __cplusplus
}
#endif

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/*-----------------------------------------------------------------
Copyright (C) 2005 - 2013
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
Claudio "sverx"
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
#include <nds.h>
#include <nds/fifocommon.h>
#include <nds/fifomessages.h>
#include <stdio.h>
#include <fat.h>
#include <sys/stat.h>
#include <limits.h>
#include <string.h>
#include <unistd.h>
#include "args.h"
#include "file_browse.h"
#include "font.h"
#include "hbmenu_consolebg.h"
#include "iconTitle.h"
#include "skin.h"
#include "tonccpy.h"
#include "nrio_detect.h"
#include "nds_loader_arm9.h"
#define BG_256_COLOR (BIT(7))
#define FlashBase_S98 0x09000000
using namespace std;
volatile bool guiEnabled = false;
volatile bool gbaGuiEnabled = false;
// const bool BlankScreenOnBoot = true;
static const int pathListSize = 3;
static const int framePathListSize = 4;
static const char *PossiblePaths[3] = { "GBAExploader.nds", "/boot.nds", "/boot.dat" };
static const char *GBAFramePaths[4] = {
"/gbaframe.bmp",
"/GBA_SIGN/gbaframe.bmp",
"/_system_/gbaframe.bmp",
"/ttmenu/gbaframe.bmp"
};
void InitGUI(void) {
if (guiEnabled)return;
guiEnabled = true;
gbaGuiEnabled = false;
iconTitleInit();
videoSetModeSub(MODE_4_2D);
vramSetBankC(VRAM_C_SUB_BG);
int bgSub = bgInitSub(3, BgType_Bmp8, BgSize_B8_256x256, 1, 0);
PrintConsole *console = consoleInit(0, 0, BgType_Text4bpp, BgSize_T_256x256, 4, 6, false, false);
dmaCopy(hbmenu_consolebgBitmap, bgGetGfxPtr(bgSub), 256*256);
ConsoleFont font;
font.gfx = (u16*)fontTiles;
font.pal = (u16*)fontPal;
font.numChars = 95;
font.numColors = (fontPalLen / 2);
font.bpp = 4;
font.asciiOffset = 32;
font.convertSingleColor = true;
consoleSetFont(console, &font);
dmaCopy(hbmenu_consolebgPal, BG_PALETTE_SUB, 256*2);
BG_PALETTE_SUB[255] = RGB15(31,31,31);
keysSetRepeat(25,5);
consoleSetWindow(console, 1, 1, 30, 22);
}
void InitGUIForGBA() {
if (gbaGuiEnabled)return;
gbaGuiEnabled = true;
guiEnabled = false;
videoSetMode(MODE_5_2D | DISPLAY_BG3_ACTIVE);
videoSetModeSub(MODE_5_2D | DISPLAY_BG3_ACTIVE);
vramSetBankA(VRAM_A_MAIN_BG_0x06000000);
vramSetBankB(VRAM_B_MAIN_BG_0x06020000);
vramSetBankC(VRAM_C_SUB_BG_0x06200000);
vramSetBankD(VRAM_D_LCD);
// for the main screen
REG_BG3CNT = BG_BMP16_256x256 | BG_BMP_BASE(0) | BG_WRAP_OFF;
REG_BG3PA = 1 << 8; //scale x
REG_BG3PB = 0; //rotation x
REG_BG3PC = 0; //rotation y
REG_BG3PD = 1 << 8; //scale y
REG_BG3X = 0; //translation x
REG_BG3Y = 0; //translation y*/
toncset((void*)BG_BMP_RAM(0),0,0x18000);
toncset((void*)BG_BMP_RAM(8),0,0x18000);
swiWaitForVBlank();
}
u16 Read_S98NOR_ID() {
*((vu16*)(FlashBase_S98)) = 0xF0;
*((vu16*)(FlashBase_S98+0x555*2)) = 0xAA;
*((vu16*)(FlashBase_S98+0x2AA*2)) = 0x55;
*((vu16*)(FlashBase_S98+0x555*2)) = 0x90;
return *((vu16*)(FlashBase_S98+0xE*2));
}
void SetKernelRomPage() {
*(vu16*)0x09FE0000 = 0xD200;
*(vu16*)0x08000000 = 0x1500;
*(vu16*)0x08020000 = 0xD200;
*(vu16*)0x08040000 = 0x1500;
*(vu16*)0x09880000 = 0x8002; // Kernel section of NorFlash
*(vu16*)0x09FC0000 = 0x1500;
}
void LoadGBAFrame() {
InitGUIForGBA();
for (int i = 0; i < framePathListSize; i++) {
if ((access(GBAFramePaths[i], F_OK) == 0) && LoadSkin(3, GBAFramePaths[i]))return;
}
}
void gbaMode() {
sysSetCartOwner(true);
swiWaitForVBlank();
if (Read_S98NOR_ID() == 0x223D)SetKernelRomPage();
LoadGBAFrame();
if(PersonalData->gbaScreen) { lcdMainOnBottom(); } else { lcdMainOnTop(); }
sysSetCartOwner(false);
fifoSendValue32(FIFO_USER_01, 1);
REG_IME = 0;
irqDisable(IRQ_VBLANK);
while(1)swiWaitForVBlank();
}
int stop(void) {
while(1) {
swiWaitForVBlank();
scanKeys();
if (!keysHeld())break;
}
while (1) {
swiWaitForVBlank();
scanKeys();
if (keysDown() != 0)break;
}
return 0;
}
int FileBrowser() {
InitGUI();
consoleClear();
while(1) {
swiWaitForVBlank();
scanKeys();
if (!keysHeld())break;
}
vector<string> extensionList = argsGetExtensionList();
// if (access("fat:/nds", F_OK) == 0)chdir("fat:/nds");
while(1) {
string filename = browseForFile(extensionList);
// Construct a command line
vector<string> argarray;
if (!argsFillArray(filename, argarray)) {
printf("Invalid NDS or arg file selected\n");
} else {
iprintf("Running %s with %d parameters\n", argarray[0].c_str(), argarray.size());
// Make a copy of argarray using C strings, for the sake of runNdsFile
vector<const char*> c_args;
for (const auto& arg: argarray) { c_args.push_back(arg.c_str()); }
// Try to run the NDS file with the given arguments
int err = runNdsFile(c_args[0], c_args.size(), &c_args[0]);
iprintf("Start failed. Error %i\n", err);
}
argarray.clear();
}
return 0;
}
int main(int argc, char **argv) {
// overwrite reboot stub identifier
// so tapping power on DSi returns to DSi menu
extern u64 *fake_heap_end;
*fake_heap_end = 0;
bool fatInit = fatInitDefault();
// if (!fatMountSimple("ez5n", &io_ez5n)) {
if (!fatInit) {
InitGUI();
consoleClear();
printf ("\n\n\n\n\n\n\n\n\n\n FAT init failed! \n");
return stop();
}
swiWaitForVBlank();
scanKeys();
u32 key = keysDown();
switch (key) {
case KEY_A: {
for (int i = 0; i < pathListSize; i++) {
if (access(PossiblePaths[i], F_OK) == 0) {
runNdsFile(PossiblePaths[i], 0, NULL);
return stop();
}
}
FileBrowser();
} break;
case KEY_B: gbaMode(); break;
case KEY_X: {
if((access("/mmd.nds", F_OK) == 0)) {
runNdsFile("/mmd.nds", 0, NULL);
} else {
FileBrowser();
}
} break;
case KEY_Y: {
if((access("/GodMode9i.nds", F_OK) == 0)) { runNdsFile("/GodMode9i.nds", 0, NULL); } else { FileBrowser(); }
} break;
// case 0: gbaMode(); break;
default: {
if (!(key & KEY_SELECT) && (access("/nrio-usb-disk.nds", F_OK) == 0)) {
nrio_usb_type_t usb = nrio_usb_detect();
if (usb.board_type != 0)runNdsFile("/nrio-usb-disk.nds", 0, NULL);
}
FileBrowser();
} break;
}
return stop();
}

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/*-----------------------------------------------------------------
Copyright (C) 2005 - 2010
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
#include <string.h>
#include <nds.h>
#include <nds/arm9/dldi.h>
#include <sys/stat.h>
#include <limits.h>
#include <unistd.h>
#include <fat.h>
#include "load_bin.h"
#ifndef _NO_BOOTSTUB_
#include "bootstub_bin.h"
#include "exceptionstub_bin.h"
#endif
#include "nds_loader_arm9.h"
#define TMP_DATA 0x02100000
#define LCDC_BANK_D (u16*)0x06860000
#define STORED_FILE_CLUSTER (*(((u32*)LCDC_BANK_D) + 1))
#define INIT_DISC (*(((u32*)LCDC_BANK_D) + 2))
#define WANT_TO_PATCH_DLDI (*(((u32*)LCDC_BANK_D) + 3))
#define STORED_FILE_CLUSTER_OFFSET 4
#define INIT_DISC_OFFSET 8
#define WANT_TO_PATCH_DLDI_OFFSET 12
#define ARG_START_OFFSET 16
#define ARG_SIZE_OFFSET 20
#define HAVE_DSISD_OFFSET 28
#define DSIMODE_OFFSET 32
typedef signed int addr_t;
typedef unsigned char data_t;
extern bool usingInternalFat;
#define FIX_ALL 0x01
#define FIX_GLUE 0x02
#define FIX_GOT 0x04
#define FIX_BSS 0x08
DLDI_INTERFACE* EZ5NDLDI;
enum DldiOffsets {
DO_magicString = 0x00, // "\xED\xA5\x8D\xBF Chishm"
DO_magicToken = 0x00, // 0xBF8DA5ED
DO_magicShortString = 0x04, // " Chishm"
DO_version = 0x0C,
DO_driverSize = 0x0D,
DO_fixSections = 0x0E,
DO_allocatedSpace = 0x0F,
DO_friendlyName = 0x10,
DO_text_start = 0x40, // Data start
DO_data_end = 0x44, // Data end
DO_glue_start = 0x48, // Interworking glue start -- Needs address fixing
DO_glue_end = 0x4C, // Interworking glue end
DO_got_start = 0x50, // GOT start -- Needs address fixing
DO_got_end = 0x54, // GOT end
DO_bss_start = 0x58, // bss start -- Needs setting to zero
DO_bss_end = 0x5C, // bss end
// IO_INTERFACE data
DO_ioType = 0x60,
DO_features = 0x64,
DO_startup = 0x68,
DO_isInserted = 0x6C,
DO_readSectors = 0x70,
DO_writeSectors = 0x74,
DO_clearStatus = 0x78,
DO_shutdown = 0x7C,
DO_code = 0x80
};
static addr_t readAddr (data_t *mem, addr_t offset) { return ((addr_t*)mem)[offset/sizeof(addr_t)]; }
static void writeAddr (data_t *mem, addr_t offset, addr_t value) { ((addr_t*)mem)[offset/sizeof(addr_t)] = value; }
static void vramcpy (void* dst, const void* src, int len) {
u16* dst16 = (u16*)dst;
u16* src16 = (u16*)src;
for ( ; len > 0; len -= 2) { *dst16++ = *src16++; }
}
static addr_t quickFind (const data_t* data, const data_t* search, size_t dataLen, size_t searchLen) {
const int* dataChunk = (const int*) data;
int searchChunk = ((const int*)search)[0];
addr_t i;
addr_t dataChunkEnd = (addr_t)(dataLen / sizeof(int));
for ( i = 0; i < dataChunkEnd; i++) {
if (dataChunk[i] == searchChunk) {
if ((i*sizeof(int) + searchLen) > dataLen)return -1;
if (memcmp (&data[i*sizeof(int)], search, searchLen) == 0)return i*sizeof(int);
}
}
return -1;
}
// Normal DLDI uses "\xED\xA5\x8D\xBF Chishm"
// Bootloader string is different to avoid being patched
static const data_t dldiMagicLoaderString[] = "\xEE\xA5\x8D\xBF Chishm"; // Different to a normal DLDI file
#define DEVICE_TYPE_DLDI 0x49444C44
static bool dldiPatchLoader (data_t *binData, u32 binSize, bool clearBSS, bool useEZPDLDI) {
addr_t memOffset; // Offset of DLDI after the file is loaded into memory
addr_t patchOffset; // Position of patch destination in the file
addr_t relocationOffset; // Value added to all offsets within the patch to fix it properly
addr_t ddmemOffset; // Original offset used in the DLDI file
addr_t ddmemStart; // Start of range that offsets can be in the DLDI file
addr_t ddmemEnd; // End of range that offsets can be in the DLDI file
addr_t ddmemSize; // Size of range that offsets can be in the DLDI file
addr_t addrIter;
data_t *pDH;
data_t *pAH;
size_t dldiFileSize = 0;
// Find the DLDI reserved space in the file
patchOffset = quickFind (binData, dldiMagicLoaderString, binSize, sizeof(dldiMagicLoaderString));
if (patchOffset < 0)return false; // does not have a DLDI section
if (useEZPDLDI) {
EZ5NDLDI = dldiLoadFromFile("fat:/ez5n.dldi");
pDH = (data_t*)(EZ5NDLDI);
} else {
pDH = (data_t*)(io_dldi_data);
}
pAH = &(binData[patchOffset]);
if (*((u32*)(pDH + DO_ioType)) == DEVICE_TYPE_DLDI)return false; // No DLDI patch
if (pDH[DO_driverSize] > pAH[DO_allocatedSpace])return false; // Not enough space for patch
dldiFileSize = 1 << pDH[DO_driverSize];
memOffset = readAddr (pAH, DO_text_start);
if (memOffset == 0)memOffset = (readAddr (pAH, DO_startup) - DO_code);
ddmemOffset = readAddr (pDH, DO_text_start);
relocationOffset = (memOffset - ddmemOffset);
ddmemStart = readAddr (pDH, DO_text_start);
ddmemSize = (1 << pDH[DO_driverSize]);
ddmemEnd = (ddmemStart + ddmemSize);
// Remember how much space is actually reserved
pDH[DO_allocatedSpace] = pAH[DO_allocatedSpace];
// Copy the DLDI patch into the application
vramcpy (pAH, pDH, dldiFileSize);
// Fix the section pointers in the header
writeAddr (pAH, DO_text_start, readAddr (pAH, DO_text_start) + relocationOffset);
writeAddr (pAH, DO_data_end, readAddr (pAH, DO_data_end) + relocationOffset);
writeAddr (pAH, DO_glue_start, readAddr (pAH, DO_glue_start) + relocationOffset);
writeAddr (pAH, DO_glue_end, readAddr (pAH, DO_glue_end) + relocationOffset);
writeAddr (pAH, DO_got_start, readAddr (pAH, DO_got_start) + relocationOffset);
writeAddr (pAH, DO_got_end, readAddr (pAH, DO_got_end) + relocationOffset);
writeAddr (pAH, DO_bss_start, readAddr (pAH, DO_bss_start) + relocationOffset);
writeAddr (pAH, DO_bss_end, readAddr (pAH, DO_bss_end) + relocationOffset);
// Fix the function pointers in the header
writeAddr (pAH, DO_startup, readAddr (pAH, DO_startup) + relocationOffset);
writeAddr (pAH, DO_isInserted, readAddr (pAH, DO_isInserted) + relocationOffset);
writeAddr (pAH, DO_readSectors, readAddr (pAH, DO_readSectors) + relocationOffset);
writeAddr (pAH, DO_writeSectors, readAddr (pAH, DO_writeSectors) + relocationOffset);
writeAddr (pAH, DO_clearStatus, readAddr (pAH, DO_clearStatus) + relocationOffset);
writeAddr (pAH, DO_shutdown, readAddr (pAH, DO_shutdown) + relocationOffset);
if (pDH[DO_fixSections] & FIX_ALL) {
// Search through and fix pointers within the data section of the file
for (addrIter = (readAddr(pDH, DO_text_start) - ddmemStart); addrIter < (readAddr(pDH, DO_data_end) - ddmemStart); addrIter++) {
if ((ddmemStart <= readAddr(pAH, addrIter)) && (readAddr(pAH, addrIter) < ddmemEnd)) {
writeAddr (pAH, addrIter, readAddr(pAH, addrIter) + relocationOffset);
}
}
}
if (pDH[DO_fixSections] & FIX_GLUE) {
// Search through and fix pointers within the glue section of the file
for (addrIter = (readAddr(pDH, DO_glue_start) - ddmemStart); addrIter < (readAddr(pDH, DO_glue_end) - ddmemStart); addrIter++) {
if ((ddmemStart <= readAddr(pAH, addrIter)) && (readAddr(pAH, addrIter) < ddmemEnd)) {
writeAddr (pAH, addrIter, readAddr(pAH, addrIter) + relocationOffset);
}
}
}
if (pDH[DO_fixSections] & FIX_GOT) {
// Search through and fix pointers within the Global Offset Table section of the file
for (addrIter = (readAddr(pDH, DO_got_start) - ddmemStart); addrIter < (readAddr(pDH, DO_got_end) - ddmemStart); addrIter++) {
if ((ddmemStart <= readAddr(pAH, addrIter)) && (readAddr(pAH, addrIter) < ddmemEnd)) {
writeAddr (pAH, addrIter, readAddr(pAH, addrIter) + relocationOffset);
}
}
}
if (clearBSS && (pDH[DO_fixSections] & FIX_BSS)) {
// Initialise the BSS to 0, only if the disc is being re-inited
memset (&pAH[readAddr(pDH, DO_bss_start) - ddmemStart] , 0, readAddr(pDH, DO_bss_end) - readAddr(pDH, DO_bss_start));
}
return true;
}
// eRunNdsRetCode runNds (const void* loader, u32 loaderSize, u32 cluster, bool initDisc, bool dldiPatchNds, int argc, const char** argv) {
eRunNdsRetCode runNds (const void* loader, u32 loaderSize, u32 cluster, bool initDisc, bool useExtDLDI, int argc, const char** argv) {
char* argStart;
u16* argData;
u16 argTempVal = 0;
int argSize;
const char* argChar;
irqDisable(IRQ_ALL);
// Direct CPU access to VRAM bank C
VRAM_D_CR = VRAM_ENABLE | VRAM_D_LCD;
// Load the loader/patcher into the correct address
vramcpy (LCDC_BANK_D, loader, loaderSize);
// Set the parameters for the loader
// STORED_FILE_CLUSTER = cluster;
writeAddr ((data_t*) LCDC_BANK_D, STORED_FILE_CLUSTER_OFFSET, cluster);
// INIT_DISC = initDisc;
writeAddr ((data_t*) LCDC_BANK_D, INIT_DISC_OFFSET, initDisc);
writeAddr ((data_t*) LCDC_BANK_D, DSIMODE_OFFSET, isDSiMode());
/*if(argv[0][0]=='s' && argv[0][1]=='d') {
dldiPatchNds = false;
writeAddr ((data_t*) LCDC_BANK_D, HAVE_DSISD_OFFSET, 1);
}
// WANT_TO_PATCH_DLDI = dldiPatchNds;
// writeAddr ((data_t*) LCDC_BANK_D, WANT_TO_PATCH_DLDI_OFFSET, dldiPatchNds);*/
writeAddr ((data_t*) LCDC_BANK_D, WANT_TO_PATCH_DLDI_OFFSET, useExtDLDI);
// Give arguments to loader
argStart = (char*)LCDC_BANK_D + readAddr((data_t*)LCDC_BANK_D, ARG_START_OFFSET);
argStart = (char*)(((int)argStart + 3) & ~3); // Align to word
argData = (u16*)argStart;
argSize = 0;
for (; argc > 0 && *argv; ++argv, --argc) {
for (argChar = *argv; *argChar != 0; ++argChar, ++argSize) {
if (argSize & 1) {
argTempVal |= (*argChar) << 8;
*argData = argTempVal;
++argData;
} else {
argTempVal = *argChar;
}
}
if (argSize & 1) { *argData = argTempVal; ++argData; }
argTempVal = 0;
++argSize;
}
*argData = argTempVal;
writeAddr ((data_t*) LCDC_BANK_D, ARG_START_OFFSET, (addr_t)argStart - (addr_t)LCDC_BANK_D);
writeAddr ((data_t*) LCDC_BANK_D, ARG_SIZE_OFFSET, argSize);
/*if(dldiPatchNds) {
// Patch the loader with a DLDI for the card
if (!dldiPatchLoader ((data_t*)LCDC_BANK_D, loaderSize, initDisc))return RUN_NDS_PATCH_DLDI_FAILED;
}*/
if (!dldiPatchLoader ((data_t*)LCDC_BANK_D, loaderSize, initDisc, useExtDLDI))return RUN_NDS_PATCH_DLDI_FAILED;
irqDisable(IRQ_ALL);
// Give the VRAM to the ARM7
VRAM_D_CR = VRAM_ENABLE | VRAM_D_ARM7_0x06020000;
// Reset into a passme loop
REG_EXMEMCNT |= ARM7_OWNS_ROM | ARM7_OWNS_CARD;
*((vu32*)0x02FFFFFC) = 0;
*((vu32*)0x02FFFE04) = (u32)0xE59FF018;
*((vu32*)0x02FFFE24) = (u32)0x02FFFE04;
resetARM7(0x06020000);
swiSoftReset();
return RUN_NDS_OK;
}
eRunNdsRetCode runNdsFile (const char* filename, int argc, const char** argv) {
struct stat st;
char filePath[PATH_MAX];
int pathLen;
const char* args[1];
if (stat (filename, &st) < 0)return RUN_NDS_STAT_FAILED;
if ((argc <= 0) || !argv) {
// Construct a command line if we weren't supplied with one
if (!getcwd (filePath, PATH_MAX))return RUN_NDS_GETCWD_FAILED;
pathLen = strlen (filePath);
strcpy (filePath + pathLen, filename);
args[0] = filePath;
argv = args;
}
/*bool havedsiSD = false;
if(argv[0][0]=='s' && argv[0][1]=='d') havedsiSD = true;
installBootStub(havedsiSD);*/
// return runNds (load_bin, load_bin_size, st.st_ino, true, true, argc, argv);
if (usingInternalFat) {
return runNds (load_bin, load_bin_size, st.st_ino, true, false, argc, argv);
} else {
return runNds (load_bin, load_bin_size, st.st_ino, true, true, argc, argv);
}
}
void(*exceptionstub)(void) = (void(*)(void))0x2FFA000;
/*bool installBootStub(bool havedsiSD) {
#ifndef _NO_BOOTSTUB_
extern char *fake_heap_end;
struct __bootstub *bootstub = (struct __bootstub *)fake_heap_end;
u32 *bootloader = (u32*)(fake_heap_end+bootstub_bin_size);
memcpy(bootstub,bootstub_bin,bootstub_bin_size);
memcpy(bootloader,load_bin,load_bin_size);
bool ret = false;
bootloader[8] = isDSiMode();
if(havedsiSD) {
ret = true;
bootloader[3] = 0; // don't dldi patch
bootloader[7] = 1; // use internal dsi SD code
} else {
ret = dldiPatchLoader((data_t*)bootloader, load_bin_size,false);
}
bootstub->arm9reboot = (VoidFn)(((u32)bootstub->arm9reboot)+fake_heap_end);
bootstub->arm7reboot = (VoidFn)(((u32)bootstub->arm7reboot)+fake_heap_end);
bootstub->bootsize = load_bin_size;
memcpy(exceptionstub,exceptionstub_bin,exceptionstub_bin_size);
exceptionstub();
DC_FlushAll();
return ret;
#else
return true;
#endif
}*/

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/*-----------------------------------------------------------------
Copyright (C) 2005 - 2010
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
#ifndef NDS_LOADER_ARM9_H
#define NDS_LOADER_ARM9_H
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
RUN_NDS_OK = 0,
RUN_NDS_STAT_FAILED,
RUN_NDS_GETCWD_FAILED,
RUN_NDS_PATCH_DLDI_FAILED,
} eRunNdsRetCode;
#define LOAD_DEFAULT_NDS 0
// eRunNdsRetCode runNds (const void* loader, u32 loaderSize, u32 cluster, bool initDisc, bool dldiPatchNds, int argc, const char** argv);
eRunNdsRetCode runNds (const void* loader, u32 loaderSize, u32 cluster, bool initDisc, bool useExtDLDI, int argc, const char** argv);
eRunNdsRetCode runNdsFile (const char* filename, int argc, const char** argv);
bool installBootStub(bool havedsiSD);
#ifdef __cplusplus
}
#endif
#endif // NDS_LOADER_ARM7_H

75
arm9/source/nrio_detect.c Normal file
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// SPDX-License-Identifier: CC0-1.0
//
// SPDX-FileContributor: Adrian "asie" Siekierka, 2024
#include <nds.h>
#include "nrio_detect.h"
#define EXMEMCNT_SRAM_TIME_SHIFT (0)
#define EXMEMCNT_SRAM_TIME_6_CYCLES (2 << EXMEMCNT_SRAM_TIME_SHIFT)
#define EXMEMCNT_SRAM_TIME_18_CYCLES (3 << EXMEMCNT_SRAM_TIME_SHIFT)
#define EXMEMCNT_ROM_TIME1_SHIFT (2)
#define EXMEMCNT_ROM_TIME2_SHIFT (4)
#define EXMEMCNT_ROM_TIME1_6_CYCLES (2 << EXMEMCNT_ROM_TIME1_SHIFT)
#define EXMEMCNT_ROM_TIME1_18_CYCLES (3 << EXMEMCNT_ROM_TIME1_SHIFT)
#define EXMEMCNT_ROM_TIME2_6_CYCLES (0 << EXMEMCNT_ROM_TIME2_SHIFT)
#define EXMEMCNT_ROM_TIME2_4_CYCLES (1 << EXMEMCNT_ROM_TIME2_SHIFT)
#define NRIO_D12_DATA (*((volatile uint16_t*) 0x9FDFFFE))
#define NRIO_D12_CMD (*((volatile uint16_t*) 0x9FFFFFE))
#define NRIO_D12_CMD_READ_ID 0xFD
static inline uint16_t nrio_d12_read_chip_id(void) {
uint16_t result;
NRIO_D12_CMD = NRIO_D12_CMD_READ_ID;
result = NRIO_D12_DATA & 0xFF;
result |= (NRIO_D12_DATA & 0xFF) << 8;
return result;
}
#define NRIO_D14_REG(index) GBA_BUS[(index) * 0x10000]
#define NRIO_D14_CHIP_IDL NRIO_D14_REG(0x70)
#define NRIO_D14_CHIP_IDH NRIO_D14_REG(0x72)
static inline uint32_t nrio_d14_read_chip_id(void) {
return ((NRIO_D14_CHIP_IDH << 16) | NRIO_D14_CHIP_IDL) & 0xFFFFFF;
}
nrio_usb_type_t nrio_usb_detect(void) {
nrio_usb_type_t result = {0, 0, 0};
// Configure GBA cartridge bus
sysSetCartOwner(BUS_OWNER_ARM9);
REG_EXMEMCNT = (REG_EXMEMCNT & ~0x1F) | EXMEMCNT_ROM_TIME1_6_CYCLES
| EXMEMCNT_ROM_TIME2_4_CYCLES | EXMEMCNT_SRAM_TIME_6_CYCLES;
// Check if the chip is an ISP1581/82/83
uint32_t d14_chip_id = nrio_d14_read_chip_id();
if (d14_chip_id >= 0x158100 && d14_chip_id < 0x158400) {
result.board_type = NRIO_USB_BOARD_TYPE_D14;
result.chip_id = d14_chip_id >> 8;
result.chip_rev = d14_chip_id & 0xFF;
return result;
}
// The D12 supports a maximum readout speed of 2 MHz.
REG_EXMEMCNT = (REG_EXMEMCNT & ~0x1F) | EXMEMCNT_ROM_TIME1_18_CYCLES
| EXMEMCNT_ROM_TIME2_6_CYCLES | EXMEMCNT_SRAM_TIME_18_CYCLES;
// Check if the chip is an PDIUSBD12 (do other compatible chips exist?)
uint16_t d12_chip_id = nrio_d12_read_chip_id();
uint8_t d12_open_bus = NRIO_D12_DATA;
if (!((d12_chip_id >> 8) == d12_open_bus && (d12_chip_id & 0xFF) == d12_open_bus)) {
result.board_type = NRIO_USB_BOARD_TYPE_D12;
result.chip_id = d12_chip_id;
return result;
}
return result;
}

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// SPDX-License-Identifier: CC0-1.0
//
// SPDX-FileContributor: Adrian "asie" Siekierka, 2024
#ifndef _NRIO_DETECT_H_
#define _NRIO_DETECT_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
#define NRIO_USB_BOARD_TYPE_NONE 0
#define NRIO_USB_BOARD_TYPE_D12 12
#define NRIO_USB_BOARD_TYPE_D14 14
typedef struct nrio_usb_type {
uint16_t board_type; ///< Board type
uint16_t chip_id; ///< Chip ID
uint16_t chip_rev; ///< Chip revision
} nrio_usb_type_t;
nrio_usb_type_t nrio_usb_detect(void);
#ifdef __cplusplus
}
#endif
#endif /* _NRIO_DETECT_H_ */

293
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#include <fat.h>
#include <nds.h>
#include <sys/dir.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include "skin.h"
#define BI_RGB (0)
#define BI_RLE8 (1)
#define BI_RLE4 (2)
#define BI_Bitfields (3)
typedef struct {
u8 bfType[2];
u32 bfSize;
u16 bfReserved1;
u16 bfReserved2;
u32 bfOffset;
u32 biSize;
u32 biWidth;
u32 biHeight;
u16 biPlanes;
u16 biBitCount;
u32 biCopmression;
u32 biSizeImage;
u32 biXPixPerMeter;
u32 biYPixPerMeter;
u32 biClrUsed;
u32 biCirImportant;
u8 *pPalette;
u8 *pBitmap;
u32 DataWidth;
} TBMPHeader;
static u16 GetVariable16bit(void *pb) {
u16 res;
u8 *pb8=(u8*)pb;
res=(u32)pb8[0] << 0;
res+=(u32)pb8[1] << 8;
return(res);
}
static u32 GetVariable32bit(void *pb) {
u32 res;
u8 *pb8=(u8*)pb;
res=(u32)pb8[0] << 0;
res+=(u32)pb8[1] << 8;
res+=(u32)pb8[2] << 16;
res+=(u32)pb8[3] << 24;
return(res);
}
static bool GetBMPHeader(u8 *pb,TBMPHeader *pBMPHeader) {
if(pb==NULL){
// BMP_LoadErrorStr="SourceData Null.";
return(false);
}
if(pBMPHeader==NULL){
// BMP_LoadErrorStr="pBMPHeader Null.";
return(false);
}
pBMPHeader->bfType[0]=pb[0];
pBMPHeader->bfType[1]=pb[1];
pBMPHeader->bfSize=GetVariable32bit(&pb[2]);
pBMPHeader->bfReserved1=GetVariable16bit(&pb[6]);
pBMPHeader->bfReserved2=GetVariable16bit(&pb[8]);
pBMPHeader->bfOffset=GetVariable32bit(&pb[10]);
pBMPHeader->biSize=GetVariable32bit(&pb[14+0]);
pBMPHeader->biWidth=GetVariable32bit(&pb[14+4]);
pBMPHeader->biHeight=GetVariable32bit(&pb[14+8]);
pBMPHeader->biPlanes=GetVariable16bit(&pb[14+12]);
pBMPHeader->biBitCount=GetVariable16bit(&pb[14+14]);
pBMPHeader->biCopmression=GetVariable32bit(&pb[14+16]);
pBMPHeader->biSizeImage=GetVariable32bit(&pb[14+20]);
pBMPHeader->biXPixPerMeter=GetVariable32bit(&pb[14+24]);
pBMPHeader->biYPixPerMeter=GetVariable32bit(&pb[14+28]);
pBMPHeader->biClrUsed=GetVariable32bit(&pb[14+32]);
pBMPHeader->biCirImportant=GetVariable32bit(&pb[14+36]);
pBMPHeader->pPalette=&pb[14+40];
pBMPHeader->pBitmap=&pb[pBMPHeader->bfOffset];
pBMPHeader->DataWidth=0;
if((pBMPHeader->bfType[0]!='B')||(pBMPHeader->bfType[1]!='M')){
// BMP_LoadErrorStr="Error MagicID!=BM";
return(false);
}
if(pBMPHeader->biCopmression!=BI_RGB){
// BMP_LoadErrorStr="Error notsupport Compression";
return(false);
}
if(pBMPHeader->biHeight>=0x80000000){
// BMP_LoadErrorStr="Error notsupport OS/2 format";
return(false);
}
if(pBMPHeader->biPlanes!=1){
// BMP_LoadErrorStr="Error notsupport Planes!=1";
return(false);
}
switch(pBMPHeader->biBitCount){
case 1:
// BMP_LoadErrorStr="Error notsupport 1bitcolor.";
return(false);
case 4:
// BMP_LoadErrorStr="Error notsupport 4bitcolor.";
return(false);
case 8:
pBMPHeader->DataWidth=pBMPHeader->biWidth*1;
break;
case 16:
// BMP_LoadErrorStr="Error notsupport 16bitcolor.";
return(false);
case 24:
pBMPHeader->DataWidth=pBMPHeader->biWidth*3;
break;
case 32:
pBMPHeader->DataWidth=pBMPHeader->biWidth*4;
break;
default:
// BMP_LoadErrorStr="Error Unknown xxBitColor.";
return(false);
}
if((pBMPHeader->DataWidth&3)!=0){
pBMPHeader->DataWidth+=4-(pBMPHeader->DataWidth&3);
}
// BMP_LoadErrorStr="";
return(true);
}
static bool intLoadBM(const char *bmpfn,u16 *pbm,const u32 bmw,const u32 bmh) {
FILE *fh;
if(pbm == NULL)return(false);
u8 *bmdata = NULL;
u32 bmsize;
fh=fopen(bmpfn, "rb");
if(fh != NULL) {
fseek(fh, 0, SEEK_END);
bmsize=ftell(fh);
fseek(fh, 0, SEEK_SET);
bmdata = (u8*)malloc(bmsize);
fread(bmdata, 1, bmsize, fh);
fclose(fh);
}
if(bmdata==NULL)return(false);
TBMPHeader BMPHeader;
if(!GetBMPHeader(bmdata,&BMPHeader)) {
free(bmdata); bmdata=NULL;
return(false);
}
if((BMPHeader.biWidth==1)&&(BMPHeader.biHeight==1)) {
free(bmdata);
bmdata=NULL;
return false;
}
if(BMPHeader.biBitCount==32) {
free(bmdata);
bmdata = NULL;
return false;
}
if((BMPHeader.biWidth<bmw)||(BMPHeader.biHeight<bmh)) {
free(bmdata);
bmdata=NULL;
return false;
}
u32 gr=0,gg=0,gb=0;
#define Gravity(c,cg) { \
c+=cg; \
cg=c&7; \
c=c>>3; \
if((c&(~0x1f))!=0) c=(c<0) ? 0x00 : 0x1f; \
}
for(u32 y=0;y<bmh;y++) {
u8 *pSrcBM=&BMPHeader.pBitmap[(BMPHeader.biHeight-1-y)*BMPHeader.DataWidth];
u16 *pDstBM=&pbm[y*bmw];
switch(BMPHeader.biBitCount) {
case 8: {
u8 *PaletteTable=BMPHeader.pPalette;
for(u32 x=0;x<bmw;x++){
u8 *pal;
u32 r,g,b;
pal=&PaletteTable[*pSrcBM*4];
pSrcBM+=1;
b=pal[0];
g=pal[1];
r=pal[2];
Gravity(b,gb);
Gravity(g,gg);
Gravity(r,gr);
pDstBM[x]=RGB15(r,g,b) | BIT(15);
}
break;
}
case 24: {
for(u32 x=0;x<bmw;x++) {
u32 r,g,b;
b=pSrcBM[0];
g=pSrcBM[1];
r=pSrcBM[2];
pSrcBM+=3;
Gravity(b,gb);
Gravity(g,gg);
Gravity(r,gr);
pDstBM[x]=RGB15(r,g,b) | BIT(15);
}
break;
}
}
}
#undef Gravity
free(bmdata);
bmdata=NULL;
return true;
}
ALIGN(4) static u16 *pBuf;
bool LoadSkin(int mode, const char *Name) {
u16 *pDstBuf1, *pDstBuf2;
pBuf = (u16*)malloc(256*192*2);
if (!intLoadBM(Name, pBuf, 256, 192)) { free(pBuf); return false; }
switch (mode) {
case 0: pDstBuf1 = (u16*)0x06020000; break;
case 1: pDstBuf1 = (u16*)0x06220000; break;
case 2:
pDstBuf1 = (u16*)0x06000000;
pDstBuf2 = (u16*)0x06020000;
break;
case 3: {
pDstBuf1 = BG_BMP_RAM(0);
pDstBuf2 = BG_BMP_RAM(8);
} break;
default: pDstBuf1 = (u16*)0x06020000; break;
}
for (s32 y = 0; y < 192; y++) {
for (s32 x = 0; x < 256; x++) {
pDstBuf1[x] = pBuf[x];
if ((mode == 2) || (mode == 3))pDstBuf2[x] = pBuf[x];
}
pDstBuf1 += 256;
if ((mode == 2) || (mode == 3))pDstBuf2 += 256;
pBuf += 256;
}
return true;
}

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#ifdef __cplusplus
extern "C" {
#endif
extern bool LoadSkin(int mode, const char *Name);
#ifdef __cplusplus
}
#endif

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#include "tonccpy.h"
//# tonccpy.c
//! VRAM-safe cpy.
/*! This version mimics memcpy in functionality, with
the benefit of working for VRAM as well. It is also
slightly faster than the original memcpy, but faster
implementations can be made.
\param dst Destination pointer.
\param src Source pointer.
\param size Fill-length in bytes.
\note The pointers and size need not be word-aligned.
*/
void tonccpy(void *dst, const void *src, uint size)
{
if(size==0 || dst==0 || src==0)
return;
uint count;
u16 *dst16; // hword destination
u8 *src8; // byte source
// Ideal case: copy by 4x words. Leaves tail for later.
if( ((u32)src|(u32)dst)%4==0 && size>=4)
{
u32 *src32= (u32*)src, *dst32= (u32*)dst;
count= size/4;
uint tmp= count&3;
count /= 4;
// Duff's Device, good friend!
switch(tmp) {
do { *dst32++ = *src32++;
case 3: *dst32++ = *src32++;
case 2: *dst32++ = *src32++;
case 1: *dst32++ = *src32++;
case 0: ; } while(count--);
}
// Check for tail
size &= 3;
if(size == 0)
return;
src8= (u8*)src32;
dst16= (u16*)dst32;
}
else // Unaligned.
{
uint dstOfs= (u32)dst&1;
src8= (u8*)src;
dst16= (u16*)(dst-dstOfs);
// Head: 1 byte.
if(dstOfs != 0)
{
*dst16= (*dst16 & 0xFF) | *src8++<<8;
dst16++;
if(--size==0)
return;
}
}
// Unaligned main: copy by 2x byte.
count= size/2;
while(count--)
{
*dst16++ = src8[0] | src8[1]<<8;
src8 += 2;
}
// Tail: 1 byte.
if(size&1)
*dst16= (*dst16 &~ 0xFF) | *src8;
}
//# toncset.c
//! VRAM-safe memset, internal routine.
/*! This version mimics memset in functionality, with
the benefit of working for VRAM as well. It is also
slightly faster than the original memset.
\param dst Destination pointer.
\param fill Word to fill with.
\param size Fill-length in bytes.
\note The \a dst pointer and \a size need not be
word-aligned. In the case of unaligned fills, \a fill
will be masked off to match the situation.
*/
void __toncset(void *dst, u32 fill, uint size)
{
if(size==0 || dst==0)
return;
uint left= (u32)dst&3;
u32 *dst32= (u32*)(dst-left);
u32 count, mask;
// Unaligned head.
if(left != 0)
{
// Adjust for very small stint.
if(left+size<4)
{
mask= BIT_MASK(size*8)<<(left*8);
*dst32= (*dst32 &~ mask) | (fill & mask);
return;
}
mask= BIT_MASK(left*8);
*dst32= (*dst32 & mask) | (fill&~mask);
dst32++;
size -= 4-left;
}
// Main stint.
count= size/4;
uint tmp= count&3;
count /= 4;
switch(tmp) {
do { *dst32++ = fill;
case 3: *dst32++ = fill;
case 2: *dst32++ = fill;
case 1: *dst32++ = fill;
case 0: ; } while(count--);
}
// Tail
size &= 3;
if(size)
{
mask= BIT_MASK(size*8);
*dst32= (*dst32 &~ mask) | (fill & mask);
}
}

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//# Stuff you may not have yet.
#ifndef TONCCPY_H
#define TONCCPY_H
#ifdef __cplusplus
extern "C" {
#endif
#include <nds/ndstypes.h>
typedef unsigned int uint;
#define BIT_MASK(len) ( (1<<(len))-1 )
static inline u32 quad8(u16 x) { x |= x<<8; return x | x<<16; }
//# Declarations and inlines.
void tonccpy(void *dst, const void *src, uint size);
void __toncset(void *dst, u32 fill, uint size);
static inline void toncset(void *dst, u8 src, uint size);
static inline void toncset16(void *dst, u16 src, uint size);
static inline void toncset32(void *dst, u32 src, uint size);
//! VRAM-safe memset, byte version. Size in bytes.
static inline void toncset(void *dst, u8 src, uint size)
{ __toncset(dst, quad8(src), size); }
//! VRAM-safe memset, halfword version. Size in hwords.
static inline void toncset16(void *dst, u16 src, uint size)
{ __toncset(dst, src|src<<16, size*2); }
//! VRAM-safe memset, word version. Size in words.
static inline void toncset32(void *dst, u32 src, uint size)
{ __toncset(dst, src, size*4); }
#ifdef __cplusplus
}
#endif
#endif

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bootstub/Makefile Normal file
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include $(DEVKITARM)/base_tools
TARGET := bootstub
../data/$(TARGET).bin: $(TARGET).elf
$(OBJCOPY) -O binary $< $@
$(TARGET).elf: $(TARGET).s Makefile
$(CC) -Wl,-Ttext=0 -x assembler-with-cpp -nostartfiles -nostdlib $(TARGET).s -o $@
clean:
rm -f $(TARGET).elf $(TARGET).bin

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/*-----------------------------------------------------------------
Copyright (C) 2010 Dave "WinterMute" Murphy
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
------------------------------------------------------------------*/
.global _start
//-----------------------------------------------------------------
_start:
//-----------------------------------------------------------------
.ascii "bootstub"
.word hook7from9 - _start
.word hook9from7 - _start
_loader_size:
.word 0
.arch armv4t
.cpu arm7tdmi
//-----------------------------------------------------------------
hook9from7:
//-----------------------------------------------------------------
ldr r0, arm9bootaddr
adr r1, hook7from9
str r1, [r0]
mov r3, #0x04000000
ldr r0, resetcode
str r0, [r3, #0x188]
add r3, r3, #0x180
adr r0, waitcode_start
ldr r1, arm7base
adr r2, waitcode_end
1: ldr r4, [r0],#4
str r4, [r1],#4
cmp r2, r0
bne 1b
ldr r1, arm7base
bx r1
//-----------------------------------------------------------------
waitcode_start:
//-----------------------------------------------------------------
push {lr}
mov r2, #1
bl waitsync
mov r0, #0x100
strh r0, [r3]
mov r2, #0
bl waitsync
mov r0, #0
strh r0, [r3]
pop {lr}
bx lr
waitsync:
ldrh r0, [r3]
and r0, r0, #0x000f
cmp r0, r2
bne waitsync
bx lr
waitcode_end:
arm7base:
.word 0x037f8000
arm7bootaddr:
.word 0x02FFFE34
arm9bootaddr:
.word 0x02FFFE24
tcmpudisable:
.word 0x2078
resetcode:
.word 0x0c04000c
//-----------------------------------------------------------------
hook7from9:
//-----------------------------------------------------------------
mov r12, #0x04000000
strb r12, [r12,#0x208]
.arch armv5te
.cpu arm946e-s
ldr r1, tcmpudisable @ disable TCM and protection unit
mcr p15, 0, r1, c1, c0
@ Disable cache
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 @ Instruction cache
mcr p15, 0, r0, c7, c6, 0 @ Data cache
mcr p15, 0, r0, c3, c0, 0 @ write buffer
@ Wait for write buffer to empty
mcr p15, 0, r0, c7, c10, 4
add r3, r12, #0x180 @ r3 = 4000180
mov r0,#0x80
strb r0,[r3,#0x242-0x180]
adr r0, _loader
ldr r2, _loader_size
mov r1, #0x06800000
add r1, r1, #0x40000
add r2, r0, r2
_copyloader:
ldr r4, [r0], #4
str r4, [r1], #4
cmp r0, r2
blt _copyloader
mov r0,#0x82
strb r0,[r3,#0x242-0x180]
ldrh r0,[r3,#0x204-0x180]
orr r0,r0,#(1<<11) | (1<<7)
strh r0,[r3,#0x204-0x180]
ldr r0, arm7bootaddr
mov r1, #0x06000000
str r1, [r0]
ldr r0, resetcode
str r0, [r12, #0x188]
mov r2, #1
bl waitsync
mov r0, #0x100
strh r0, [r3]
mov r2, #0
bl waitsync
mov r0, #0
strh r0, [r3]
// set up and enter passme loop
ldr r0,arm9branchaddr
ldr r1,branchinst
str r1,[r0]
str r0,[r0,#0x20]
bx r0
branchinst:
.word 0xE59FF018
arm9branchaddr:
.word 0x02fffe04
_loader:

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Copyright (C) 2005 - 2013
Michael "Chishm" Chisholm
Dave "WinterMute" Murphy
Claudio "sverx"
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, US

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#---------------------------------------------------------------------------------
.SUFFIXES:
#---------------------------------------------------------------------------------
ifeq ($(strip $(DEVKITARM)),)
$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM)
endif
-include $(DEVKITARM)/ds_rules
#---------------------------------------------------------------------------------
# BUILD is the directory where object files & intermediate files will be placed
# SOURCES is a list of directories containing source code
# INCLUDES is a list of directories containing extra header files
#---------------------------------------------------------------------------------
TARGET := load
BUILD ?= build
SOURCES := source source/patches
INCLUDES := build
SPECS := specs
#---------------------------------------------------------------------------------
# options for code generation
#---------------------------------------------------------------------------------
ARCH := -mthumb -mthumb-interwork
CFLAGS := -g -Wall -Os \
-mcpu=arm7tdmi -mtune=arm7tdmi -fomit-frame-pointer\
-ffast-math \
$(ARCH)
CFLAGS += $(INCLUDE) $(EXTRA_CFLAGS) -DARM7
ASFLAGS := -g $(ARCH) $(EXTRA_CFLAGS) $(INCLUDE)
LDFLAGS = -nostartfiles -T $(TOPDIR)/load.ld -Wl,-g $(ARCH) -Wl,-Map,$(TARGET).map
LIBS :=
#---------------------------------------------------------------------------------
# list of directories containing libraries, this must be the top level containing
# include and lib
#---------------------------------------------------------------------------------
LIBDIRS := $(LIBNDS)
#---------------------------------------------------------------------------------
# no real need to edit anything past this point unless you need to add additional
# rules for different file extensions
#---------------------------------------------------------------------------------
ifneq ($(BUILD),$(notdir $(CURDIR)))
#---------------------------------------------------------------------------------
export TOPDIR := $(CURDIR)
export LOADBIN ?= $(CURDIR)/$(TARGET).bin
export LOADELF := $(CURDIR)/$(TARGET).elf
export DEPSDIR := $(CURDIR)/$(BUILD)
export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir))
export CC := $(PREFIX)gcc
export CXX := $(PREFIX)g++
export AR := $(PREFIX)ar
export OBJCOPY := $(PREFIX)objcopy
CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
export OFILES := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
-I$(CURDIR)/$(BUILD)
export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
#---------------------------------------------------------------------------------
# use CC for linking standard C
#---------------------------------------------------------------------------------
export LD := $(CC)
#---------------------------------------------------------------------------------
.PHONY: $(BUILD) clean
#---------------------------------------------------------------------------------
$(BUILD):
@[ -d $@ ] || mkdir -p $@
@$(MAKE) -C $(BUILD) -f $(CURDIR)/Makefile
#---------------------------------------------------------------------------------
clean:
@echo clean ...
@rm -fr $(BUILD) *.elf *.bin
#---------------------------------------------------------------------------------
else
DEPENDS := $(OFILES:.o=.d)
#---------------------------------------------------------------------------------
# main targets
#---------------------------------------------------------------------------------
$(LOADBIN) : $(LOADELF)
@$(OBJCOPY) -O binary $< $@
@echo built ... $(notdir $@)
$(LOADELF) : $(OFILES)
@echo linking $(notdir $@)
@$(LD) $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
arm9mpu_reset.o: mpu_reset.bin
mpu_reset.bin: mpu_reset.elf
$(OBJCOPY) -O binary $< $@
mpu_reset.elf: $(TOPDIR)/arm9code/mpu_reset.s
$(CC) $(ASFLAGS) -Ttext=0 -x assembler-with-cpp -nostartfiles -nostdlib $< -o $@
-include $(DEPENDS)
#---------------------------------------------------------------------------------------
endif
#---------------------------------------------------------------------------------------

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@ -0,0 +1,110 @@
/*
Copyright 2006 - 2015 Dave Murphy (WinterMute)
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <nds/arm9/cache_asm.h>
.text
.align 4
.arm
.arch armv5te
.cpu arm946e-s
@---------------------------------------------------------------------------------
.global _start
.type _start STT_FUNC
@---------------------------------------------------------------------------------
_start:
@---------------------------------------------------------------------------------
@ Switch off MPU
mrc p15, 0, r0, c1, c0, 0
bic r0, r0, #PROTECT_ENABLE
mcr p15, 0, r0, c1, c0, 0
adr r12, mpu_initial_data
ldmia r12, {r0-r10}
mcr p15, 0, r0, c2, c0, 0
mcr p15, 0, r0, c2, c0, 1
mcr p15, 0, r1, c3, c0, 0
mcr p15, 0, r2, c5, c0, 2
mcr p15, 0, r3, c5, c0, 3
mcr p15, 0, r4, c6, c0, 0
mcr p15, 0, r5, c6, c1, 0
mcr p15, 0, r6, c6, c3, 0
mcr p15, 0, r7, c6, c4, 0
mcr p15, 0, r8, c6, c6, 0
mcr p15, 0, r9, c6, c7, 0
mcr p15, 0, r10, c9, c1, 0
mov r0, #0
mcr p15, 0, r0, c6, c2, 0 @ PU Protection Unit Data/Unified Region 2
mcr p15, 0, r0, c6, c5, 0 @ PU Protection Unit Data/Unified Region 5
mrc p15, 0, r0, c9, c1, 0 @ DTCM
mov r0, r0, lsr #12 @ base
mov r0, r0, lsl #12 @ size
add r0, r0, #0x4000 @ dtcm top
sub r0, r0, #4 @ irq vector
mov r1, #0
str r1, [r0]
sub r0, r0, #4 @ IRQ1 Check Bits
str r1, [r0]
sub r0, r0, #128
bic r0, r0, #7
msr cpsr_c, #0xd3 @ svc mode
mov sp, r0
sub r0, r0, #128
msr cpsr_c, #0xd2 @ irq mode
mov sp, r0
sub r0, r0, #128
msr cpsr_c, #0xdf @ system mode
mov sp, r0
@ enable cache & tcm
mrc p15, 0, r0, c1, c0, 0
ldr r1,= ITCM_ENABLE | DTCM_ENABLE | ICACHE_ENABLE | DCACHE_ENABLE
orr r0,r0,r1
mcr p15, 0, r0, c1, c0, 0
ldr r10, =0x2FFFE04
ldr r0, =0xE59FF018
str r0, [r10]
add r1, r10, #0x20
str r10, [r1]
bx r10
.pool
mpu_initial_data:
.word 0x00000042 @ p15,0,c2,c0,0..1,r0 ;PU Cachability Bits for Data/Unified+Instruction Protection Region
.word 0x00000002 @ p15,0,c3,c0,0,r1 ;PU Write-Bufferability Bits for Data Protection Regions
.word 0x15111011 @ p15,0,c5,c0,2,r2 ;PU Extended Access Permission Data/Unified Protection Region
.word 0x05100011 @ p15,0,c5,c0,3,r3 ;PU Extended Access Permission Instruction Protection Region
.word 0x04000033 @ p15,0,c6,c0,0,r4 ;PU Protection Unit Data/Unified Region 0
.word 0x0200002b @ p15,0,c6,c1,0,r5 ;PU Protection Unit Data/Unified Region 1 4MB
.word 0x08000035 @ p15,0,c6,c3,0,r6 ;PU Protection Unit Data/Unified Region 3
.word 0x0300001b @ p15,0,c6,c4,0,r7 ;PU Protection Unit Data/Unified Region 4
.word 0xffff001d @ p15,0,c6,c6,0,r8 ;PU Protection Unit Data/Unified Region 6
.word 0x02fff017 @ p15,0,c6,c7,0,r9 ;PU Protection Unit Data/Unified Region 7 4KB
.word 0x0300000a @ p15,0,c9,c1,0,r10 ;TCM Data TCM Base and Virtual Size

198
ndsbootloader/load.ld Normal file
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@ -0,0 +1,198 @@
OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
OUTPUT_ARCH(arm)
ENTRY(_start)
MEMORY {
vram : ORIGIN = 0x06020000, LENGTH = 64K
}
__vram_start = ORIGIN(vram);
__vram_top = ORIGIN(vram)+ LENGTH(vram);
__sp_irq = __vram_top - 0x60;
__sp_svc = __sp_irq - 0x100;
__sp_usr = __sp_svc - 0x100;
__irq_flags = __vram_top - 8;
__irq_vector = __vram_top - 4;
SECTIONS
{
.init :
{
__text_start = . ;
KEEP (*(.init))
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
} >vram = 0xff
.plt :
{
*(.plt)
} >vram = 0xff
.text : /* ALIGN (4): */
{
*(.text*)
*(.stub)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t*)
*(.glue_7)
*(.glue_7t)
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
} >vram = 0xff
.fini :
{
KEEP (*(.fini))
} >vram =0xff
__text_end = . ;
.rodata :
{
*(.rodata)
*all.rodata*(*)
*(.roda)
*(.rodata.*)
*(.gnu.linkonce.r*)
SORT(CONSTRUCTORS)
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
} >vram = 0xff
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >vram
__exidx_start = .;
.ARM.exidx : { *(.ARM.exidx* .gnu.linkonce.armexidx.*) } >vram
__exidx_end = .;
/* Ensure the __preinit_array_start label is properly aligned. We
could instead move the label definition inside the section, but
the linker would then create the section even if it turns out to
be empty, which isn't pretty. */
. = ALIGN(32 / 8);
PROVIDE (__preinit_array_start = .);
.preinit_array : { KEEP (*(.preinit_array)) } >vram = 0xff
PROVIDE (__preinit_array_end = .);
PROVIDE (__init_array_start = .);
.init_array : { KEEP (*(.init_array)) } >vram = 0xff
PROVIDE (__init_array_end = .);
PROVIDE (__fini_array_start = .);
.fini_array : { KEEP (*(.fini_array)) } >vram = 0xff
PROVIDE (__fini_array_end = .);
.ctors :
{
/* gcc uses crtbegin.o to find the start of the constructors, so
we make sure it is first. Because this is a wildcard, it
doesn't matter if the user does not actually link against
crtbegin.o; the linker won't look for a file to match a
wildcard. The wildcard also means that it doesn't matter which
directory crtbegin.o is in. */
KEEP (*crtbegin.o(.ctors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
} >vram = 0xff
.dtors :
{
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
} >vram = 0xff
.eh_frame :
{
KEEP (*(.eh_frame))
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
} >vram = 0xff
.gcc_except_table :
{
*(.gcc_except_table)
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
} >vram = 0xff
.jcr : { KEEP (*(.jcr)) } >vram = 0
.got : { *(.got.plt) *(.got) } >vram = 0
.vram ALIGN(4) :
{
__vram_start = ABSOLUTE(.) ;
*(.vram)
*vram.*(.text)
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
__vram_end = ABSOLUTE(.) ;
} >vram = 0xff
.data ALIGN(4) : {
__data_start = ABSOLUTE(.);
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
CONSTRUCTORS
. = ALIGN(4);
__data_end = ABSOLUTE(.) ;
} >vram = 0xff
.bss ALIGN(4) :
{
__bss_start = ABSOLUTE(.);
__bss_start__ = ABSOLUTE(.);
*(.dynbss)
*(.gnu.linkonce.b*)
*(.bss*)
*(COMMON)
. = ALIGN(4); /* REQUIRED. LD is flaky without it. */
} >vram
__bss_end = . ;
__bss_end__ = . ;
_end = . ;
__end__ = . ;
PROVIDE (end = _end);
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
.stack 0x80000 : { _stack = .; *(.stack) }
/* These must appear regardless of . */
}

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@ -0,0 +1,70 @@
/*-----------------------------------------------------------------
Copyright (C) 2005 Michael "Chishm" Chisholm
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
If you use this code, please give due credit and email me about your
project at chishm@hotmail.com
------------------------------------------------------------------*/
.arm
.global arm7clearRAM
.type arm7clearRAM STT_FUNC
arm7clearRAM:
push {r0-r9}
// clear exclusive IWRAM
// 0380:0000 to 0380:FFFF, total 64KiB
mov r0, #0
mov r1, #0
mov r2, #0
mov r3, #0
mov r4, #0
mov r5, #0
mov r6, #0
mov r7, #0
mov r8, #0x03800000
sub r8, #0x00008000
mov r9, #0x03800000
orr r9, r9, #0x10000
clear_IWRAM_loop:
stmia r8!, {r0, r1, r2, r3, r4, r5, r6, r7}
cmp r8, r9
blt clear_IWRAM_loop
// clear most of EWRAM - except after RAM end - 0xc000, which has the bootstub
mov r8, #0x02000000
ldr r9,=0x4004008
ldr r9,[r9]
ands r9,r9,#0x8000
bne dsi_mode
mov r9, #0x02400000
b ds_mode
dsi_mode:
mov r9, #0x03000000
ds_mode:
sub r9, #0x0000c000
clear_EWRAM_loop:
stmia r8!, {r0, r1, r2, r3, r4, r5, r6, r7}
cmp r8, r9
blt clear_EWRAM_loop
pop {r0-r9}
bx lr

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#define ARM9
#undef ARM7
#include <nds/ndstypes.h>
#include <nds/dma.h>
#include <nds/system.h>
#include <nds/interrupts.h>
#include <nds/timers.h>
#include <nds/memory.h>
#include <nds/arm9/video.h>
#include <nds/arm9/input.h>
#include "boot.h"
/*-------------------------------------------------------------------------
resetMemory2_ARM9
Clears the ARM9's DMA channels and resets video memory
Written by Darkain.
Modified by Chishm:
* Changed MultiNDS specific stuff
--------------------------------------------------------------------------*/
void __attribute__ ((long_call)) __attribute__((naked)) __attribute__((noreturn)) resetMemory2_ARM9 (void)
{
register int i;
//clear out ARM9 DMA channels
for (i=0; i<4; i++) {
DMA_CR(i) = 0;
DMA_SRC(i) = 0;
DMA_DEST(i) = 0;
TIMER_CR(i) = 0;
TIMER_DATA(i) = 0;
}
//set shared ram to ARM7
WRAM_CR = 0x03;
// Return to passme loop
*((vu32*)0x02FFFE04) = (u32)0xE59FF018; // ldr pc, 0x02FFFE24
*((vu32*)0x02FFFE24) = (u32)0x02FFFE04; // Set ARM9 Loop address
asm volatile(
"\tbx %0\n"
: : "r" (0x02FFFE04)
);
while(1);
}
/*-------------------------------------------------------------------------
startBinary_ARM9
Jumps to the ARM9 NDS binary in sync with the display and ARM7
Written by Darkain.
Modified by Chishm:
* Removed MultiNDS specific stuff
--------------------------------------------------------------------------*/
void __attribute__ ((long_call)) __attribute__((noreturn)) __attribute__((naked)) startBinary_ARM9 (void)
{
REG_IME=0;
REG_EXMEMCNT = 0xE880;
// set ARM9 load address to 0 and wait for it to change again
ARM9_START_FLAG = 0;
while(REG_VCOUNT!=191);
while(REG_VCOUNT==191);
while ( ARM9_START_FLAG != 1 );
VoidFn arm9code = *(VoidFn*)(0x2FFFE24);
arm9code();
while(1);
}

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.arm
.global mpu_reset, mpu_reset_end
mpu_reset:
.incbin "mpu_reset.bin"
mpu_reset_end:

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.text
.align 4
.thumb
@---------------------------------------------------------------------------------
.global swiDelay
.thumb_func
@---------------------------------------------------------------------------------
swiDelay:
@---------------------------------------------------------------------------------
swi 0x03
bx lr

379
ndsbootloader/source/boot.c Normal file
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/*-----------------------------------------------------------------
boot.c
BootLoader
Loads a file into memory and runs it
All resetMemory and startBinary functions are based
on the MultiNDS loader by Darkain.
Original source available at:
http://cvs.sourceforge.net/viewcvs.py/ndslib/ndslib/examples/loader/boot/main.cpp
License:
Copyright (C) 2005 Michael "Chishm" Chisholm
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
If you use this code, please give due credit and email me about your
project at chishm@hotmail.com
Helpful information:
This code runs from VRAM bank C on ARM7
------------------------------------------------------------------*/
#include <nds/ndstypes.h>
#include <nds/dma.h>
#include <nds/system.h>
#include <nds/interrupts.h>
#include <nds/timers.h>
#include <nds/memory.h>
#include <nds/arm7/audio.h>
#include "fat.h"
#include "dldi_patcher.h"
#include "card.h"
#include "boot.h"
#include "sdmmc.h"
void arm7clearRAM();
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Important things
#define TEMP_MEM 0x02FFD000
#define TWL_HEAD 0x02FFE000
#define NDS_HEAD 0x02FFFE00
#define TEMP_ARM9_START_ADDRESS (*(vu32*)0x02FFFFF4)
const char* bootName = "BOOT.NDS";
extern unsigned long _start;
extern unsigned long storedFileCluster;
extern unsigned long initDisc;
extern unsigned long wantToPatchDLDI;
extern unsigned long argStart;
extern unsigned long argSize;
extern unsigned long dsiSD;
extern unsigned long dsiMode;
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Firmware stuff
#define FW_READ 0x03
void boot_readFirmware (uint32 address, uint8 * buffer, uint32 size) {
uint32 index;
// Read command
while (REG_SPICNT & SPI_BUSY);
REG_SPICNT = SPI_ENABLE | SPI_CONTINUOUS | SPI_DEVICE_NVRAM;
REG_SPIDATA = FW_READ;
while (REG_SPICNT & SPI_BUSY);
// Set the address
REG_SPIDATA = (address>>16) & 0xFF;
while (REG_SPICNT & SPI_BUSY);
REG_SPIDATA = (address>>8) & 0xFF;
while (REG_SPICNT & SPI_BUSY);
REG_SPIDATA = (address) & 0xFF;
while (REG_SPICNT & SPI_BUSY);
for (index = 0; index < size; index++) {
REG_SPIDATA = 0;
while (REG_SPICNT & SPI_BUSY);
buffer[index] = REG_SPIDATA & 0xFF;
}
REG_SPICNT = 0;
}
static inline void copyLoop (u32* dest, const u32* src, u32 size) {
size = (size +3) & ~3;
do {
*dest++ = *src++;
} while (size -= 4);
}
//#define resetCpu() __asm volatile("\tswi 0x000000\n");
static char boot_nds[] = "fat:/boot.nds";
static unsigned long argbuf[4];
/*-------------------------------------------------------------------------
passArgs_ARM7
Copies the command line arguments to the end of the ARM9 binary,
then sets a flag in memory for the loaded NDS to use
--------------------------------------------------------------------------*/
void passArgs_ARM7 (void) {
u32 ARM9_DST = *((u32*)(NDS_HEAD + 0x028));
u32 ARM9_LEN = *((u32*)(NDS_HEAD + 0x02C));
u32* argSrc;
u32* argDst;
if (!argStart || !argSize) {
char *arg = boot_nds;
argSize = __builtin_strlen(boot_nds);
if (dsiSD) {
arg++;
arg[0] = 's';
arg[1] = 'd';
}
__builtin_memcpy(argbuf,arg,argSize+1);
argSrc = argbuf;
} else {
argSrc = (u32*)(argStart + (int)&_start);
}
if ( ARM9_DST == 0 && ARM9_LEN == 0) {
ARM9_DST = *((u32*)(NDS_HEAD + 0x038));
ARM9_LEN = *((u32*)(NDS_HEAD + 0x03C));
}
argDst = (u32*)((ARM9_DST + ARM9_LEN + 3) & ~3); // Word aligned
if (dsiMode && (*(u8*)(NDS_HEAD + 0x012) & BIT(1)))
{
u32 ARM9i_DST = *((u32*)(TWL_HEAD + 0x1C8));
u32 ARM9i_LEN = *((u32*)(TWL_HEAD + 0x1CC));
if (ARM9i_LEN)
{
u32* argDst2 = (u32*)((ARM9i_DST + ARM9i_LEN + 3) & ~3); // Word aligned
if (argDst2 > argDst)
argDst = argDst2;
}
}
copyLoop(argDst, argSrc, argSize);
__system_argv->argvMagic = ARGV_MAGIC;
__system_argv->commandLine = (char*)argDst;
__system_argv->length = argSize;
}
/*-------------------------------------------------------------------------
resetMemory_ARM7
Clears all of the NDS's RAM that is visible to the ARM7
Written by Darkain.
Modified by Chishm:
* Added STMIA clear mem loop
--------------------------------------------------------------------------*/
void resetMemory_ARM7 (void)
{
int i;
u8 settings1, settings2;
u32 settingsOffset = 0;
REG_IME = 0;
for (i=0; i<16; i++) {
SCHANNEL_CR(i) = 0;
SCHANNEL_TIMER(i) = 0;
SCHANNEL_SOURCE(i) = 0;
SCHANNEL_LENGTH(i) = 0;
}
REG_SOUNDCNT = 0;
//clear out ARM7 DMA channels and timers
for (i=0; i<4; i++) {
DMA_CR(i) = 0;
DMA_SRC(i) = 0;
DMA_DEST(i) = 0;
TIMER_CR(i) = 0;
TIMER_DATA(i) = 0;
}
arm7clearRAM();
REG_IE = 0;
REG_IF = ~0;
(*(vu32*)(0x04000000-4)) = 0; //IRQ_HANDLER ARM7 version
(*(vu32*)(0x04000000-8)) = ~0; //VBLANK_INTR_WAIT_FLAGS, ARM7 version
REG_POWERCNT = 1; //turn off power to stuff
// Get settings location
boot_readFirmware((u32)0x00020, (u8*)&settingsOffset, 0x2);
settingsOffset *= 8;
// Reload DS Firmware settings
boot_readFirmware(settingsOffset + 0x070, &settings1, 0x1);
boot_readFirmware(settingsOffset + 0x170, &settings2, 0x1);
if ((settings1 & 0x7F) == ((settings2+1) & 0x7F)) {
boot_readFirmware(settingsOffset + 0x000, (u8*)0x02FFFC80, 0x70);
} else {
boot_readFirmware(settingsOffset + 0x100, (u8*)0x02FFFC80, 0x70);
}
((vu32*)0x040044f0)[2] = 0x202DDD1D;
((vu32*)0x040044f0)[3] = 0xE1A00005;
while((*(vu32*)0x04004400) & 0x2000000);
}
void loadBinary_ARM7 (u32 fileCluster)
{
u32 ndsHeader[0x170>>2];
// read NDS header
fileRead ((char*)ndsHeader, fileCluster, 0, 0x170);
// read ARM9 info from NDS header
u32 ARM9_SRC = ndsHeader[0x020>>2];
char* ARM9_DST = (char*)ndsHeader[0x028>>2];
u32 ARM9_LEN = ndsHeader[0x02C>>2];
// read ARM7 info from NDS header
u32 ARM7_SRC = ndsHeader[0x030>>2];
char* ARM7_DST = (char*)ndsHeader[0x038>>2];
u32 ARM7_LEN = ndsHeader[0x03C>>2];
// Load binaries into memory
fileRead(ARM9_DST, fileCluster, ARM9_SRC, ARM9_LEN);
fileRead(ARM7_DST, fileCluster, ARM7_SRC, ARM7_LEN);
// first copy the header to its proper location, excluding
// the ARM9 start address, so as not to start it
TEMP_ARM9_START_ADDRESS = ndsHeader[0x024>>2]; // Store for later
ndsHeader[0x024>>2] = 0;
dmaCopyWords(3, (void*)ndsHeader, (void*)NDS_HEAD, 0x170);
if (dsiMode && (ndsHeader[0x10>>2]&BIT(16+1)))
{
// Read full TWL header
fileRead((char*)TWL_HEAD, fileCluster, 0, 0x1000);
u32 ARM9i_SRC = *(u32*)(TWL_HEAD+0x1C0);
char* ARM9i_DST = (char*)*(u32*)(TWL_HEAD+0x1C8);
u32 ARM9i_LEN = *(u32*)(TWL_HEAD+0x1CC);
u32 ARM7i_SRC = *(u32*)(TWL_HEAD+0x1D0);
char* ARM7i_DST = (char*)*(u32*)(TWL_HEAD+0x1D8);
u32 ARM7i_LEN = *(u32*)(TWL_HEAD+0x1DC);
if (ARM9i_LEN)
fileRead(ARM9i_DST, fileCluster, ARM9i_SRC, ARM9i_LEN);
if (ARM7i_LEN)
fileRead(ARM7i_DST, fileCluster, ARM7i_SRC, ARM7i_LEN);
}
}
/*-------------------------------------------------------------------------
startBinary_ARM7
Jumps to the ARM7 NDS binary in sync with the display and ARM9
Written by Darkain.
Modified by Chishm:
* Removed MultiNDS specific stuff
--------------------------------------------------------------------------*/
void startBinary_ARM7 (void) {
REG_IME=0;
while(REG_VCOUNT!=191);
while(REG_VCOUNT==191);
// copy NDS ARM9 start address into the header, starting ARM9
*((vu32*)0x02FFFE24) = TEMP_ARM9_START_ADDRESS;
ARM9_START_FLAG = 1;
// Start ARM7
VoidFn arm7code = *(VoidFn*)(0x2FFFE34);
arm7code();
}
#ifndef NO_SDMMC
int sdmmc_sd_readsectors(u32 sector_no, u32 numsectors, void *out);
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Main function
bool sdmmc_inserted() {
return true;
}
bool sdmmc_startup() {
sdmmc_controller_init(true);
return sdmmc_sdcard_init() == 0;
}
bool sdmmc_readsectors(u32 sector_no, u32 numsectors, void *out) {
return sdmmc_sdcard_readsectors(sector_no, numsectors, out) == 0;
}
#endif
void mpu_reset();
void mpu_reset_end();
int main (void) {
#ifdef NO_DLDI
dsiSD = true;
dsiMode = true;
#endif
#ifndef NO_SDMMC
if (dsiSD && dsiMode) {
_io_dldi.fn_readSectors = sdmmc_readsectors;
_io_dldi.fn_isInserted = sdmmc_inserted;
_io_dldi.fn_startup = sdmmc_startup;
}
#endif
u32 fileCluster = storedFileCluster;
// Init card
if(!FAT_InitFiles(initDisc))return -1;
/* Invalid file cluster specified */
if ((fileCluster < CLUSTER_FIRST) || (fileCluster >= CLUSTER_EOF))fileCluster = getBootFileCluster(bootName);
if (fileCluster == CLUSTER_FREE)return -1;
// ARM9 clears its memory part 2
// copy ARM9 function to RAM, and make the ARM9 jump to it
copyLoop((void*)TEMP_MEM, (void*)resetMemory2_ARM9, resetMemory2_ARM9_size);
(*(vu32*)0x02FFFE24) = (u32)TEMP_MEM; // Make ARM9 jump to the function
// Wait until the ARM9 has completed its task
while ((*(vu32*)0x02FFFE24) == (u32)TEMP_MEM);
// ARM9 sets up mpu
// copy ARM9 function to RAM, and make the ARM9 jump to it
copyLoop((void*)TEMP_MEM, (void*)mpu_reset, mpu_reset_end - mpu_reset);
(*(vu32*)0x02FFFE24) = (u32)TEMP_MEM; // Make ARM9 jump to the function
// Wait until the ARM9 has completed its task
while ((*(vu32*)0x02FFFE24) == (u32)TEMP_MEM);
// Get ARM7 to clear RAM
resetMemory_ARM7();
// ARM9 enters a wait loop
// copy ARM9 function to RAM, and make the ARM9 jump to it
copyLoop((void*)TEMP_MEM, (void*)startBinary_ARM9, startBinary_ARM9_size);
(*(vu32*)0x02FFFE24) = (u32)TEMP_MEM; // Make ARM9 jump to the function
// Load the NDS file
loadBinary_ARM7(fileCluster);
#ifndef NO_DLDI
// Patch with DLDI if desired
if (wantToPatchDLDI) {
dldiPatchBinary ((u8*)((u32*)NDS_HEAD)[0x0A], ((u32*)NDS_HEAD)[0x0B]);
}
#endif
#ifndef NO_SDMMC
if (dsiSD && dsiMode) {
sdmmc_controller_init(true);
*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) &= 0xFFFDu;
*(vu16*)(SDMMC_BASE + REG_SDDATACTL) &= 0xFFDDu;
*(vu16*)(SDMMC_BASE + REG_SDBLKLEN32) = 0;
}
#endif
// Pass command line arguments to loaded program
passArgs_ARM7();
startBinary_ARM7();
return 0;
}

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#ifndef _BOOT_H_
#define _BOOT_H_
#define resetMemory2_ARM9_size 0x400
void __attribute__ ((long_call)) __attribute__((naked)) __attribute__((noreturn)) resetMemory2_ARM9();
#define startBinary_ARM9_size 0x100
void __attribute__ ((long_call)) __attribute__((noreturn)) __attribute__((naked)) startBinary_ARM9 ();
#define ARM9_START_FLAG (*(vu8*)0x02FFFDFB)
#endif // _BOOT_H_

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/*-----------------------------------------------------------------
Copyright (C) 2005 Michael "Chishm" Chisholm
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
If you use this code, please give due credit and email me about your
project at chishm@hotmail.com
------------------------------------------------------------------*/
#ifndef CARD_H
#define CARD_H
#include "disc_io.h"
#include "io_dldi.h"
static inline bool CARD_StartUp (void) {
return _io_dldi.fn_startup();
}
static inline bool CARD_IsInserted (void) {
return _io_dldi.fn_isInserted();
}
static inline bool CARD_ReadSector (u32 sector, void *buffer) {
return _io_dldi.fn_readSectors(sector, 1, buffer);
}
static inline bool CARD_ReadSectors (u32 sector, int count, void *buffer) {
return _io_dldi.fn_readSectors(sector, count, buffer);
}
#endif // CARD_H

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/*
disc_io.h
Interface template for low level disc functions.
Copyright (c) 2006 Michael "Chishm" Chisholm
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2006-07-11 - Chishm
* Original release
2006-07-16 - Chishm
* Renamed _CF_USE_DMA to _IO_USE_DMA
* Renamed _CF_ALLOW_UNALIGNED to _IO_ALLOW_UNALIGNED
*/
#ifndef _DISC_IO_H
#define _DISC_IO_H
#include <nds/ndstypes.h>
#define BYTES_PER_SECTOR 512
//----------------------------------------------------------------------
// Customisable features
// Use DMA to read the card, remove this line to use normal reads/writes
// #define _IO_USE_DMA
// Allow buffers not alligned to 16 bits when reading files.
// Note that this will slow down access speed, so only use if you have to.
// It is also incompatible with DMA
#define _IO_ALLOW_UNALIGNED
#if defined _IO_USE_DMA && defined _IO_ALLOW_UNALIGNED
#error "You can't use both DMA and unaligned memory"
#endif
#define FEATURE_MEDIUM_CANREAD 0x00000001
#define FEATURE_MEDIUM_CANWRITE 0x00000002
#define FEATURE_SLOT_GBA 0x00000010
#define FEATURE_SLOT_NDS 0x00000020
typedef bool (* FN_MEDIUM_STARTUP)(void) ;
typedef bool (* FN_MEDIUM_ISINSERTED)(void) ;
typedef bool (* FN_MEDIUM_READSECTORS)(u32 sector, u32 numSectors, void* buffer) ;
typedef bool (* FN_MEDIUM_WRITESECTORS)(u32 sector, u32 numSectors, const void* buffer) ;
typedef bool (* FN_MEDIUM_CLEARSTATUS)(void) ;
typedef bool (* FN_MEDIUM_SHUTDOWN)(void) ;
struct IO_INTERFACE_STRUCT {
unsigned long ioType ;
unsigned long features ;
FN_MEDIUM_STARTUP fn_startup ;
FN_MEDIUM_ISINSERTED fn_isInserted ;
FN_MEDIUM_READSECTORS fn_readSectors ;
FN_MEDIUM_WRITESECTORS fn_writeSectors ;
FN_MEDIUM_CLEARSTATUS fn_clearStatus ;
FN_MEDIUM_SHUTDOWN fn_shutdown ;
} ;
typedef struct IO_INTERFACE_STRUCT IO_INTERFACE ;
#endif // define _DISC_IO_H

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/*-----------------------------------------------------------------
Copyright (C) 2005 Michael "Chishm" Chisholm
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
If you use this code, please give due credit and email me about your
project at chishm@hotmail.com
------------------------------------------------------------------*/
#ifndef NO_DLDI
#include <string.h>
#include <nds.h>
#include "dldi_patcher.h"
#define FIX_ALL 0x01
#define FIX_GLUE 0x02
#define FIX_GOT 0x04
#define FIX_BSS 0x08
enum DldiOffsets {
DO_magicString = 0x00, // "\xED\xA5\x8D\xBF Chishm"
DO_magicToken = 0x00, // 0xBF8DA5ED
DO_magicShortString = 0x04, // " Chishm"
DO_version = 0x0C,
DO_driverSize = 0x0D,
DO_fixSections = 0x0E,
DO_allocatedSpace = 0x0F,
DO_friendlyName = 0x10,
DO_text_start = 0x40, // Data start
DO_data_end = 0x44, // Data end
DO_glue_start = 0x48, // Interworking glue start -- Needs address fixing
DO_glue_end = 0x4C, // Interworking glue end
DO_got_start = 0x50, // GOT start -- Needs address fixing
DO_got_end = 0x54, // GOT end
DO_bss_start = 0x58, // bss start -- Needs setting to zero
DO_bss_end = 0x5C, // bss end
// IO_INTERFACE data
DO_ioType = 0x60,
DO_features = 0x64,
DO_startup = 0x68,
DO_isInserted = 0x6C,
DO_readSectors = 0x70,
DO_writeSectors = 0x74,
DO_clearStatus = 0x78,
DO_shutdown = 0x7C,
DO_code = 0x80
};
static addr_t readAddr (data_t *mem, addr_t offset) {
return ((addr_t*)mem)[offset/sizeof(addr_t)];
}
static void writeAddr (data_t *mem, addr_t offset, addr_t value) {
((addr_t*)mem)[offset/sizeof(addr_t)] = value;
}
static addr_t quickFind (const data_t* data, const data_t* search, size_t dataLen, size_t searchLen) {
const int* dataChunk = (const int*) data;
int searchChunk = ((const int*)search)[0];
addr_t i;
addr_t dataChunkEnd = (addr_t)(dataLen / sizeof(int));
for ( i = 0; i < dataChunkEnd; i++) {
if (dataChunk[i] == searchChunk) {
if ((i*sizeof(int) + searchLen) > dataLen) {
return -1;
}
if (memcmp (&data[i*sizeof(int)], search, searchLen) == 0) {
return i*sizeof(int);
}
}
}
return -1;
}
// Strings are stored with bit 0x20 flipped (case inverted) to prevent accidental DLDI patching of them
#define DLDI_MAGIC_LEN 12
#define DLDI_MAGIC_MANGLE_VALUE 0x20
static const data_t dldiMagicStringMangled[DLDI_MAGIC_LEN] = "\xCD\x85\xAD\x9F\0cHISHM"; // Normal DLDI file
// Demangle the magic string by XORing every byte with 0x20, except the NULL terminator
static void demangleMagicString(data_t *dest, const data_t *src) {
int i;
memcpy(dest, src, DLDI_MAGIC_LEN);
for (i = 0; i < DLDI_MAGIC_LEN - 1; ++i) {
dest[i] ^= DLDI_MAGIC_MANGLE_VALUE;
}
}
#define DEVICE_TYPE_DLDI 0x49444C44
extern data_t _dldi_start[];
bool dldiPatchBinary (data_t *binData, u32 binSize) {
addr_t memOffset; // Offset of DLDI after the file is loaded into memory
addr_t patchOffset; // Position of patch destination in the file
addr_t relocationOffset; // Value added to all offsets within the patch to fix it properly
addr_t ddmemOffset; // Original offset used in the DLDI file
addr_t ddmemStart; // Start of range that offsets can be in the DLDI file
addr_t ddmemEnd; // End of range that offsets can be in the DLDI file
addr_t ddmemSize; // Size of range that offsets can be in the DLDI file
addr_t addrIter;
data_t *pDH;
data_t *pAH;
data_t dldiMagicString[DLDI_MAGIC_LEN];
size_t dldiFileSize = 0;
// Find the DLDI reserved space in the file
demangleMagicString(dldiMagicString, dldiMagicStringMangled);
patchOffset = quickFind (binData, dldiMagicString, binSize, sizeof(dldiMagicString));
if (patchOffset < 0) {
// does not have a DLDI section
return false;
}
pDH = _dldi_start;
pAH = &(binData[patchOffset]);
if (*((u32*)(pDH + DO_ioType)) == DEVICE_TYPE_DLDI) {
// No DLDI patch
return false;
}
if (pDH[DO_driverSize] > pAH[DO_allocatedSpace]) {
// Not enough space for patch
return false;
}
dldiFileSize = 1 << pDH[DO_driverSize];
memOffset = readAddr (pAH, DO_text_start);
if (memOffset == 0) {
memOffset = readAddr (pAH, DO_startup) - DO_code;
}
ddmemOffset = readAddr (pDH, DO_text_start);
relocationOffset = memOffset - ddmemOffset;
ddmemStart = readAddr (pDH, DO_text_start);
ddmemSize = (1 << pDH[DO_driverSize]);
ddmemEnd = ddmemStart + ddmemSize;
// Remember how much space is actually reserved
pDH[DO_allocatedSpace] = pAH[DO_allocatedSpace];
// Copy the DLDI patch into the application
memcpy (pAH, pDH, dldiFileSize);
// Fix the section pointers in the header
writeAddr (pAH, DO_text_start, readAddr (pAH, DO_text_start) + relocationOffset);
writeAddr (pAH, DO_data_end, readAddr (pAH, DO_data_end) + relocationOffset);
writeAddr (pAH, DO_glue_start, readAddr (pAH, DO_glue_start) + relocationOffset);
writeAddr (pAH, DO_glue_end, readAddr (pAH, DO_glue_end) + relocationOffset);
writeAddr (pAH, DO_got_start, readAddr (pAH, DO_got_start) + relocationOffset);
writeAddr (pAH, DO_got_end, readAddr (pAH, DO_got_end) + relocationOffset);
writeAddr (pAH, DO_bss_start, readAddr (pAH, DO_bss_start) + relocationOffset);
writeAddr (pAH, DO_bss_end, readAddr (pAH, DO_bss_end) + relocationOffset);
// Fix the function pointers in the header
writeAddr (pAH, DO_startup, readAddr (pAH, DO_startup) + relocationOffset);
writeAddr (pAH, DO_isInserted, readAddr (pAH, DO_isInserted) + relocationOffset);
writeAddr (pAH, DO_readSectors, readAddr (pAH, DO_readSectors) + relocationOffset);
writeAddr (pAH, DO_writeSectors, readAddr (pAH, DO_writeSectors) + relocationOffset);
writeAddr (pAH, DO_clearStatus, readAddr (pAH, DO_clearStatus) + relocationOffset);
writeAddr (pAH, DO_shutdown, readAddr (pAH, DO_shutdown) + relocationOffset);
// Put the correct DLDI magic string back into the DLDI header
memcpy (pAH, dldiMagicString, sizeof (dldiMagicString));
if (pDH[DO_fixSections] & FIX_ALL) {
// Search through and fix pointers within the data section of the file
for (addrIter = (readAddr(pDH, DO_text_start) - ddmemStart); addrIter < (readAddr(pDH, DO_data_end) - ddmemStart); addrIter++) {
if ((ddmemStart <= readAddr(pAH, addrIter)) && (readAddr(pAH, addrIter) < ddmemEnd)) {
writeAddr (pAH, addrIter, readAddr(pAH, addrIter) + relocationOffset);
}
}
}
if (pDH[DO_fixSections] & FIX_GLUE) {
// Search through and fix pointers within the glue section of the file
for (addrIter = (readAddr(pDH, DO_glue_start) - ddmemStart); addrIter < (readAddr(pDH, DO_glue_end) - ddmemStart); addrIter++) {
if ((ddmemStart <= readAddr(pAH, addrIter)) && (readAddr(pAH, addrIter) < ddmemEnd)) {
writeAddr (pAH, addrIter, readAddr(pAH, addrIter) + relocationOffset);
}
}
}
if (pDH[DO_fixSections] & FIX_GOT) {
// Search through and fix pointers within the Global Offset Table section of the file
for (addrIter = (readAddr(pDH, DO_got_start) - ddmemStart); addrIter < (readAddr(pDH, DO_got_end) - ddmemStart); addrIter++) {
if ((ddmemStart <= readAddr(pAH, addrIter)) && (readAddr(pAH, addrIter) < ddmemEnd)) {
writeAddr (pAH, addrIter, readAddr(pAH, addrIter) + relocationOffset);
}
}
}
if (pDH[DO_fixSections] & FIX_BSS) {
// Initialise the BSS to 0
memset (&pAH[readAddr(pDH, DO_bss_start) - ddmemStart] , 0, readAddr(pDH, DO_bss_end) - readAddr(pDH, DO_bss_start));
}
return true;
}
#endif

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/*-----------------------------------------------------------------
Copyright (C) 2005 Michael "Chishm" Chisholm
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
If you use this code, please give due credit and email me about your
project at chishm@hotmail.com
------------------------------------------------------------------*/
#ifndef DLDI_PATCHER_H
#define DLDI_PATCHER_H
#include <nds/ndstypes.h>
typedef signed int addr_t;
typedef unsigned char data_t;
bool dldiPatchBinary (data_t *binData, u32 binSize);
#endif // DLDI_PATCHER_H

592
ndsbootloader/source/fat.c Normal file
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/*-----------------------------------------------------------------
fat.c
NDS MP
GBAMP NDS Firmware Hack Version 2.12
An NDS aware firmware patch for the GBA Movie Player.
By Michael Chisholm (Chishm)
Filesystem code based on GBAMP_CF.c by Chishm (me).
License:
Copyright (C) 2005 Michael "Chishm" Chisholm
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
If you use this code, please give due credit and email me about your
project at chishm@hotmail.com
------------------------------------------------------------------*/
#include "fat.h"
#include "card.h"
//---------------------------------------------------------------
// FAT constants
#define FILE_LAST 0x00
#define FILE_FREE 0xE5
#define ATTRIB_ARCH 0x20
#define ATTRIB_DIR 0x10
#define ATTRIB_LFN 0x0F
#define ATTRIB_VOL 0x08
#define ATTRIB_HID 0x02
#define ATTRIB_SYS 0x04
#define ATTRIB_RO 0x01
#define FAT16_ROOT_DIR_CLUSTER 0x00
// File Constants
#ifndef EOF
#define EOF -1
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#endif
//-----------------------------------------------------------------
// FAT constants
#define CLUSTER_EOF_16 0xFFFF
#define ATTRIB_ARCH 0x20
#define ATTRIB_DIR 0x10
#define ATTRIB_LFN 0x0F
#define ATTRIB_VOL 0x08
#define ATTRIB_HID 0x02
#define ATTRIB_SYS 0x04
#define ATTRIB_RO 0x01
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Data Structures
#define __PACKED __attribute__ ((__packed__))
// BIOS Parameter Block
typedef struct {
u16 bytesPerSector;
u8 sectorsPerCluster;
u16 reservedSectors;
u8 numFATs;
u16 rootEntries;
u16 numSectorsSmall;
u8 mediaDesc;
u16 sectorsPerFAT;
u16 sectorsPerTrk;
u16 numHeads;
u32 numHiddenSectors;
u32 numSectors;
} __PACKED BIOS_BPB;
// Boot Sector - must be packed
typedef struct
{
u8 jmpBoot[3];
u8 OEMName[8];
BIOS_BPB bpb;
union // Different types of extended BIOS Parameter Block for FAT16 and FAT32
{
struct
{
// Ext BIOS Parameter Block for FAT16
u8 driveNumber;
u8 reserved1;
u8 extBootSig;
u32 volumeID;
u8 volumeLabel[11];
u8 fileSysType[8];
// Bootcode
u8 bootCode[448];
} __PACKED fat16;
struct
{
// FAT32 extended block
u32 sectorsPerFAT32;
u16 extFlags;
u16 fsVer;
u32 rootClus;
u16 fsInfo;
u16 bkBootSec;
u8 reserved[12];
// Ext BIOS Parameter Block for FAT16
u8 driveNumber;
u8 reserved1;
u8 extBootSig;
u32 volumeID;
u8 volumeLabel[11];
u8 fileSysType[8];
// Bootcode
u8 bootCode[420];
} __PACKED fat32;
} __PACKED extBlock;
__PACKED u16 bootSig;
} __PACKED BOOT_SEC;
// _Static_assert(sizeof(BOOT_SEC) == 512);
// Directory entry - must be packed
typedef struct
{
u8 name[8];
u8 ext[3];
u8 attrib;
u8 reserved;
u8 cTime_ms;
u16 cTime;
u16 cDate;
u16 aDate;
u16 startClusterHigh;
u16 mTime;
u16 mDate;
u16 startCluster;
u32 fileSize;
} __PACKED DIR_ENT;
// File information - no need to pack
typedef struct
{
u32 firstCluster;
u32 length;
u32 curPos;
u32 curClus; // Current cluster to read from
int curSect; // Current sector within cluster
int curByte; // Current byte within sector
char readBuffer[512]; // Buffer used for unaligned reads
u32 appClus; // Cluster to append to
int appSect; // Sector within cluster for appending
int appByte; // Byte within sector for appending
bool read; // Can read from file
bool write; // Can write to file
bool append;// Can append to file
bool inUse; // This file is open
u32 dirEntSector; // The sector where the directory entry is stored
int dirEntOffset; // The offset within the directory sector
} FAT_FILE;
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Global Variables
// _VARS_IN_RAM variables are stored in the largest section of WRAM
// available: IWRAM on NDS ARM7, EWRAM on NDS ARM9 and GBA
// Locations on card
int discRootDir;
int discRootDirClus;
int discFAT;
int discSecPerFAT;
int discNumSec;
int discData;
int discBytePerSec;
int discSecPerClus;
int discBytePerClus;
enum {FS_UNKNOWN, FS_FAT12, FS_FAT16, FS_FAT32} discFileSystem;
// Global sector buffer to save on stack space
unsigned char globalBuffer[BYTES_PER_SECTOR];
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//FAT routines
u32 FAT_ClustToSect (u32 cluster) {
return (((cluster-2) * discSecPerClus) + discData);
}
/*-----------------------------------------------------------------
FAT_NextCluster
Internal function - gets the cluster linked from input cluster
-----------------------------------------------------------------*/
u32 FAT_NextCluster(u32 cluster)
{
u32 nextCluster = CLUSTER_FREE;
u32 sector;
int offset;
switch (discFileSystem)
{
case FS_UNKNOWN:
nextCluster = CLUSTER_FREE;
break;
case FS_FAT12:
sector = discFAT + (((cluster * 3) / 2) / BYTES_PER_SECTOR);
offset = ((cluster * 3) / 2) % BYTES_PER_SECTOR;
CARD_ReadSector(sector, globalBuffer);
nextCluster = ((u8*) globalBuffer)[offset];
offset++;
if (offset >= BYTES_PER_SECTOR) {
offset = 0;
sector++;
}
CARD_ReadSector(sector, globalBuffer);
nextCluster |= (((u8*) globalBuffer)[offset]) << 8;
if (cluster & 0x01) {
nextCluster = nextCluster >> 4;
} else {
nextCluster &= 0x0FFF;
}
break;
case FS_FAT16:
sector = discFAT + ((cluster << 1) / BYTES_PER_SECTOR);
offset = cluster % (BYTES_PER_SECTOR >> 1);
CARD_ReadSector(sector, globalBuffer);
// read the nextCluster value
nextCluster = ((u16*)globalBuffer)[offset];
if (nextCluster >= 0xFFF7)
{
nextCluster = CLUSTER_EOF;
}
break;
case FS_FAT32:
sector = discFAT + ((cluster << 2) / BYTES_PER_SECTOR);
offset = cluster % (BYTES_PER_SECTOR >> 2);
CARD_ReadSector(sector, globalBuffer);
// read the nextCluster value
nextCluster = (((u32*)globalBuffer)[offset]) & 0x0FFFFFFF;
if (nextCluster >= 0x0FFFFFF7)
{
nextCluster = CLUSTER_EOF;
}
break;
default:
nextCluster = CLUSTER_FREE;
break;
}
return nextCluster;
}
/*-----------------------------------------------------------------
ucase
Returns the uppercase version of the given char
char IN: a character
char return OUT: uppercase version of character
-----------------------------------------------------------------*/
char ucase (char character)
{
if ((character > 0x60) && (character < 0x7B))
character = character - 0x20;
return (character);
}
/*-----------------------------------------------------------------
FAT_InitFiles
Reads the FAT information from the CF card.
You need to call this before reading any files.
bool return OUT: true if successful.
-----------------------------------------------------------------*/
bool FAT_InitFiles (bool initCard)
{
int i;
int bootSector;
BOOT_SEC* bootSec;
if (initCard && !CARD_StartUp())
{
return (false);
}
// Read first sector of card
if (!CARD_ReadSector (0, globalBuffer))
{
return false;
}
// Check if there is a FAT string, which indicates this is a boot sector
if ((globalBuffer[0x36] == 'F') && (globalBuffer[0x37] == 'A') && (globalBuffer[0x38] == 'T'))
{
bootSector = 0;
}
// Check for FAT32
else if ((globalBuffer[0x52] == 'F') && (globalBuffer[0x53] == 'A') && (globalBuffer[0x54] == 'T'))
{
bootSector = 0;
}
else // This is an MBR
{
// Find first valid partition from MBR
// First check for an active partition
for (i=0x1BE; (i < 0x1FE) && (globalBuffer[i] != 0x80); i+= 0x10);
// If it didn't find an active partition, search for any valid partition
if (i == 0x1FE)
for (i=0x1BE; (i < 0x1FE) && (globalBuffer[i+0x04] == 0x00); i+= 0x10);
// Go to first valid partition
if ( i != 0x1FE) // Make sure it found a partition
{
bootSector = globalBuffer[0x8 + i] + (globalBuffer[0x9 + i] << 8) + (globalBuffer[0xA + i] << 16) + ((globalBuffer[0xB + i] << 24) & 0x0F);
} else {
bootSector = 0; // No partition found, assume this is a MBR free disk
}
}
// Read in boot sector
bootSec = (BOOT_SEC*) globalBuffer;
CARD_ReadSector (bootSector, bootSec);
// Store required information about the file system
if (bootSec->bpb.sectorsPerFAT != 0)
{
discSecPerFAT = bootSec->bpb.sectorsPerFAT;
}
else
{
discSecPerFAT = bootSec->extBlock.fat32.sectorsPerFAT32;
}
if (bootSec->bpb.numSectorsSmall != 0)
{
discNumSec = bootSec->bpb.numSectorsSmall;
}
else
{
discNumSec = bootSec->bpb.numSectors;
}
discBytePerSec = BYTES_PER_SECTOR; // Sector size is redefined to be 512 bytes
discSecPerClus = bootSec->bpb.sectorsPerCluster * bootSec->bpb.bytesPerSector / BYTES_PER_SECTOR;
discBytePerClus = discBytePerSec * discSecPerClus;
discFAT = bootSector + bootSec->bpb.reservedSectors;
discRootDir = discFAT + (bootSec->bpb.numFATs * discSecPerFAT);
discData = discRootDir + ((bootSec->bpb.rootEntries * sizeof(DIR_ENT)) / BYTES_PER_SECTOR);
if ((discNumSec - discData) / bootSec->bpb.sectorsPerCluster < 4085)
{
discFileSystem = FS_FAT12;
}
else if ((discNumSec - discData) / bootSec->bpb.sectorsPerCluster < 65525)
{
discFileSystem = FS_FAT16;
}
else
{
discFileSystem = FS_FAT32;
}
if (discFileSystem != FS_FAT32)
{
discRootDirClus = FAT16_ROOT_DIR_CLUSTER;
}
else // Set up for the FAT32 way
{
discRootDirClus = bootSec->extBlock.fat32.rootClus;
// Check if FAT mirroring is enabled
if (!(bootSec->extBlock.fat32.extFlags & 0x80))
{
// Use the active FAT
discFAT = discFAT + ( discSecPerFAT * (bootSec->extBlock.fat32.extFlags & 0x0F));
}
}
return (true);
}
/*-----------------------------------------------------------------
getBootFileCluster
-----------------------------------------------------------------*/
u32 getBootFileCluster (const char* bootName)
{
DIR_ENT dir;
int firstSector = 0;
bool notFound = false;
bool found = false;
// int maxSectors;
u32 wrkDirCluster = discRootDirClus;
u32 wrkDirSector = 0;
int wrkDirOffset = 0;
int nameOffset;
dir.startCluster = CLUSTER_FREE; // default to no file found
dir.startClusterHigh = CLUSTER_FREE;
// Check if fat has been initialised
if (discBytePerSec == 0)
{
return (CLUSTER_FREE);
}
char *ptr = (char*)bootName;
while (*ptr != '.') ptr++;
int namelen = ptr - bootName;
// maxSectors = (wrkDirCluster == FAT16_ROOT_DIR_CLUSTER ? (discData - discRootDir) : discSecPerClus);
// Scan Dir for correct entry
firstSector = discRootDir;
CARD_ReadSector (firstSector + wrkDirSector, globalBuffer);
found = false;
notFound = false;
wrkDirOffset = -1; // Start at entry zero, Compensating for increment
while (!found && !notFound) {
wrkDirOffset++;
if (wrkDirOffset == BYTES_PER_SECTOR / sizeof (DIR_ENT))
{
wrkDirOffset = 0;
wrkDirSector++;
if ((wrkDirSector == discSecPerClus) && (wrkDirCluster != FAT16_ROOT_DIR_CLUSTER))
{
wrkDirSector = 0;
wrkDirCluster = FAT_NextCluster(wrkDirCluster);
if (wrkDirCluster == CLUSTER_EOF)
{
notFound = true;
}
firstSector = FAT_ClustToSect(wrkDirCluster);
}
else if ((wrkDirCluster == FAT16_ROOT_DIR_CLUSTER) && (wrkDirSector == (discData - discRootDir)))
{
notFound = true; // Got to end of root dir
}
CARD_ReadSector (firstSector + wrkDirSector, globalBuffer);
}
dir = ((DIR_ENT*) globalBuffer)[wrkDirOffset];
found = true;
if ((dir.attrib & ATTRIB_DIR) || (dir.attrib & ATTRIB_VOL))
{
found = false;
}
if(namelen<8 && dir.name[namelen]!=0x20) found = false;
for (nameOffset = 0; nameOffset < namelen && found; nameOffset++)
{
if (ucase(dir.name[nameOffset]) != bootName[nameOffset])
found = false;
}
for (nameOffset = 0; nameOffset < 3 && found; nameOffset++)
{
if (ucase(dir.ext[nameOffset]) != bootName[nameOffset+namelen+1])
found = false;
}
if (dir.name[0] == FILE_LAST)
{
notFound = true;
}
}
// If no file is found, return CLUSTER_FREE
if (notFound)
{
return CLUSTER_FREE;
}
return (dir.startCluster | (dir.startClusterHigh << 16));
}
/*-----------------------------------------------------------------
fileRead(buffer, cluster, startOffset, length)
-----------------------------------------------------------------*/
u32 fileRead (char* buffer, u32 cluster, u32 startOffset, u32 length)
{
int curByte;
int curSect;
int dataPos = 0;
int chunks;
int beginBytes;
if (cluster == CLUSTER_FREE || cluster == CLUSTER_EOF)
{
return 0;
}
// Follow cluster list until desired one is found
for (chunks = startOffset / discBytePerClus; chunks > 0; chunks--)
{
cluster = FAT_NextCluster (cluster);
}
// Calculate the sector and byte of the current position,
// and store them
curSect = (startOffset % discBytePerClus) / BYTES_PER_SECTOR;
curByte = startOffset % BYTES_PER_SECTOR;
// Load sector buffer for new position in file
CARD_ReadSector( curSect + FAT_ClustToSect(cluster), globalBuffer);
curSect++;
// Number of bytes needed to read to align with a sector
beginBytes = (BYTES_PER_SECTOR < length + curByte ? (BYTES_PER_SECTOR - curByte) : length);
// Read first part from buffer, to align with sector boundary
for (dataPos = 0 ; dataPos < beginBytes; dataPos++)
{
buffer[dataPos] = globalBuffer[curByte++];
}
// Read in all the 512 byte chunks of the file directly, saving time
for ( chunks = ((int)length - beginBytes) / BYTES_PER_SECTOR; chunks > 0;)
{
int sectorsToRead;
// Move to the next cluster if necessary
if (curSect >= discSecPerClus)
{
curSect = 0;
cluster = FAT_NextCluster (cluster);
}
// Calculate how many sectors to read (read a maximum of discSecPerClus at a time)
sectorsToRead = discSecPerClus - curSect;
if(chunks < sectorsToRead)
sectorsToRead = chunks;
// Read the sectors
CARD_ReadSectors(curSect + FAT_ClustToSect(cluster), sectorsToRead, buffer + dataPos);
chunks -= sectorsToRead;
curSect += sectorsToRead;
dataPos += BYTES_PER_SECTOR * sectorsToRead;
}
// Take care of any bytes left over before end of read
if (dataPos < length)
{
// Update the read buffer
curByte = 0;
if (curSect >= discSecPerClus)
{
curSect = 0;
cluster = FAT_NextCluster (cluster);
}
CARD_ReadSector( curSect + FAT_ClustToSect( cluster), globalBuffer);
// Read in last partial chunk
for (; dataPos < length; dataPos++)
{
buffer[dataPos] = globalBuffer[curByte];
curByte++;
}
}
return dataPos;
}

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/*-----------------------------------------------------------------
fat.h
NDS MP
GBAMP NDS Firmware Hack Version 2.12
An NDS aware firmware patch for the GBA Movie Player.
By Michael Chisholm (Chishm)
Filesystem code based on GBAMP_CF.c by Chishm (me).
License:
Copyright (C) 2005 Michael "Chishm" Chisholm
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
If you use this code, please give due credit and email me about your
project at chishm@hotmail.com
------------------------------------------------------------------*/
#ifndef FAT_H
#define FAT_H
#include <nds/ndstypes.h>
#define CLUSTER_FREE 0x00000000
#define CLUSTER_EOF 0x0FFFFFFF
#define CLUSTER_FIRST 0x00000002
bool FAT_InitFiles (bool initCard);
u32 getBootFileCluster (const char* bootName);
u32 fileRead (char* buffer, u32 cluster, u32 startOffset, u32 length);
u32 FAT_ClustToSect (u32 cluster);
#endif // FAT_H

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@ -0,0 +1,44 @@
/*
io_dldi.h
Reserved space for post-compilation adding of an extra driver
Copyright (c) 2006 Michael "Chishm" Chisholm
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
3. The name of the author may not be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
2006-12-22 - Chishm
* Original release
*/
#ifndef IO_DLDI_H
#define IO_DLDI_H
// 'DLDD'
#define DEVICE_TYPE_DLDD 0x49444C44
#include "disc_io.h"
// export interface
extern IO_INTERFACE _io_dldi ;
#endif // define IO_DLDI_H

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@ -0,0 +1,125 @@
/*-----------------------------------------------------------------
Copyright (C) 2005 Michael "Chishm" Chisholm
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
If you use this code, please give due credit and email me about your
project at chishm@hotmail.com
------------------------------------------------------------------*/
@---------------------------------------------------------------------------------
.align 4
.arm
.global _dldi_start
.global _io_dldi
@---------------------------------------------------------------------------------
.equ FEATURE_MEDIUM_CANREAD, 0x00000001
.equ FEATURE_MEDIUM_CANWRITE, 0x00000002
.equ FEATURE_SLOT_GBA, 0x00000010
.equ FEATURE_SLOT_NDS, 0x00000020
_dldi_start:
#ifndef NO_DLDI
@---------------------------------------------------------------------------------
@ Driver patch file standard header -- 16 bytes
#ifdef STANDARD_DLDI
.word 0xBF8DA5ED @ Magic number to identify this region
#else
.word 0xBF8DA5EE @ Magic number to identify this region
#endif
.asciz " Chishm" @ Identifying Magic string (8 bytes with null terminator)
.byte 0x01 @ Version number
.byte 0x0e @ 16KiB @ Log [base-2] of the size of this driver in bytes.
.byte 0x00 @ Sections to fix
.byte 0x0e @ 16KiB @ Log [base-2] of the allocated space in bytes.
@---------------------------------------------------------------------------------
@ Text identifier - can be anything up to 47 chars + terminating null -- 16 bytes
.align 4
.asciz "Loader (No interface)"
@---------------------------------------------------------------------------------
@ Offsets to important sections within the data -- 32 bytes
.align 6
.word _dldi_start @ data start
.word _dldi_end @ data end
.word 0x00000000 @ Interworking glue start -- Needs address fixing
.word 0x00000000 @ Interworking glue end
.word 0x00000000 @ GOT start -- Needs address fixing
.word 0x00000000 @ GOT end
.word 0x00000000 @ bss start -- Needs setting to zero
.word 0x00000000 @ bss end
@---------------------------------------------------------------------------------
@ IO_INTERFACE data -- 32 bytes
_io_dldi:
.ascii "DLDI" @ ioType
.word 0x00000000 @ Features
.word _DLDI_startup @
.word _DLDI_isInserted @
.word _DLDI_readSectors @ Function pointers to standard device driver functions
.word _DLDI_writeSectors @
.word _DLDI_clearStatus @
.word _DLDI_shutdown @
@---------------------------------------------------------------------------------
_DLDI_startup:
_DLDI_isInserted:
_DLDI_readSectors:
_DLDI_writeSectors:
_DLDI_clearStatus:
_DLDI_shutdown:
mov r0, #0x00 @ Return false for every function
bx lr
@---------------------------------------------------------------------------------
.align
.pool
.space (_dldi_start + 16384) - . @ Fill to 16KiB
_dldi_end:
.end
@---------------------------------------------------------------------------------
#else
@---------------------------------------------------------------------------------
@ IO_INTERFACE data -- 32 bytes
_io_dldi:
.ascii "DLDI" @ ioType
.word 0x00000000 @ Features
.word _DLDI_startup @
.word _DLDI_isInserted @
.word _DLDI_readSectors @ Function pointers to standard device driver functions
.word _DLDI_writeSectors @
.word _DLDI_clearStatus @
.word _DLDI_shutdown @
_DLDI_startup:
_DLDI_isInserted:
_DLDI_readSectors:
_DLDI_writeSectors:
_DLDI_clearStatus:
_DLDI_shutdown:
mov r0, #0x00 @ Return false for every function
bx lr
#endif

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@ -0,0 +1,147 @@
/*-----------------------------------------------------------------
Copyright (C) 2005 Michael "Chishm" Chisholm
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
If you use this code, please give due credit and email me about your
project at chishm@hotmail.com
------------------------------------------------------------------*/
@---------------------------------------------------------------------------------
.section ".init"
.global _start
.global storedFileCluster
.global initDisc
.global wantToPatchDLDI
.global argStart
.global argSize
.global dsiSD
.global dsiMode
@---------------------------------------------------------------------------------
.align 4
.arm
@---------------------------------------------------------------------------------
_start:
@---------------------------------------------------------------------------------
b startUp
storedFileCluster:
.word 0x0FFFFFFF @ default BOOT.NDS
initDisc:
.word 0x00000001 @ init the disc by default
wantToPatchDLDI:
.word 0x00000001 @ by default patch the DLDI section of the loaded NDS
@ Used for passing arguments to the loaded app
argStart:
.word _end - _start
argSize:
.word 0x00000000
dldiOffset:
.word _dldi_start - _start
dsiSD:
.word 0
dsiMode:
.word 0
startUp:
mov r0, #0x04000000
mov r1, #0
str r1, [r0,#0x208] @ REG_IME
str r1, [r0,#0x210] @ REG_IE
str r1, [r0,#0x218] @ REG_AUXIE
mov r0, #0x12 @ Switch to IRQ Mode
msr cpsr, r0
ldr sp, =__sp_irq @ Set IRQ stack
mov r0, #0x13 @ Switch to SVC Mode
msr cpsr, r0
ldr sp, =__sp_svc @ Set SVC stack
mov r0, #0x1F @ Switch to System Mode
msr cpsr, r0
ldr sp, =__sp_usr @ Set user stack
ldr r0, =__bss_start @ Clear BSS section to 0x00
ldr r1, =__bss_end
sub r1, r1, r0
bl ClearMem
mov r0, #0 @ int argc
mov r1, #0 @ char *argv[]
ldr r3, =main
bl _blx_r3_stub @ jump to user code
@ If the user ever returns, restart
b _start
@---------------------------------------------------------------------------------
_blx_r3_stub:
@---------------------------------------------------------------------------------
bx r3
@---------------------------------------------------------------------------------
@ Clear memory to 0x00 if length != 0
@ r0 = Start Address
@ r1 = Length
@---------------------------------------------------------------------------------
ClearMem:
@---------------------------------------------------------------------------------
mov r2, #3 @ Round down to nearest word boundary
add r1, r1, r2 @ Shouldn't be needed
bics r1, r1, r2 @ Clear 2 LSB (and set Z)
bxeq lr @ Quit if copy size is 0
mov r2, #0
ClrLoop:
stmia r0!, {r2}
subs r1, r1, #4
bne ClrLoop
bx lr
@---------------------------------------------------------------------------------
@ Copy memory if length != 0
@ r1 = Source Address
@ r2 = Dest Address
@ r4 = Dest Address + Length
@---------------------------------------------------------------------------------
CopyMemCheck:
@---------------------------------------------------------------------------------
sub r3, r4, r2 @ Is there any data to copy?
@---------------------------------------------------------------------------------
@ Copy memory
@ r1 = Source Address
@ r2 = Dest Address
@ r3 = Length
@---------------------------------------------------------------------------------
CopyMem:
@---------------------------------------------------------------------------------
mov r0, #3 @ These commands are used in cases where
add r3, r3, r0 @ the length is not a multiple of 4,
bics r3, r3, r0 @ even though it should be.
bxeq lr @ Length is zero, so exit
CIDLoop:
ldmia r1!, {r0}
stmia r2!, {r0}
subs r3, r3, #4
bne CIDLoop
bx lr
@---------------------------------------------------------------------------------
.align
.pool
.end
@---------------------------------------------------------------------------------

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@ -0,0 +1,242 @@
#ifndef NO_SDMMC
#include <nds/bios.h>
#include <stddef.h>
#include "sdmmc.h"
static struct mmcdevice deviceSD;
//---------------------------------------------------------------------------------
int geterror(struct mmcdevice *ctx) {
//---------------------------------------------------------------------------------
//if(ctx->error == 0x4) return -1;
//else return 0;
return (ctx->error << 29) >> 31;
}
//---------------------------------------------------------------------------------
void setTarget(struct mmcdevice *ctx) {
//---------------------------------------------------------------------------------
sdmmc_mask16(REG_SDPORTSEL,0x3,(u16)ctx->devicenumber);
setckl(ctx->clk);
if (ctx->SDOPT == 0) {
sdmmc_mask16(REG_SDOPT, 0, 0x8000);
} else {
sdmmc_mask16(REG_SDOPT, 0x8000, 0);
}
}
//---------------------------------------------------------------------------------
void sdmmc_send_command(struct mmcdevice *ctx, uint32_t cmd, uint32_t args) {
//---------------------------------------------------------------------------------
int i;
bool getSDRESP = (cmd << 15) >> 31;
uint16_t flags = (cmd << 15) >> 31;
const bool readdata = cmd & 0x20000;
const bool writedata = cmd & 0x40000;
if(readdata || writedata)
{
flags |= TMIO_STAT0_DATAEND;
}
ctx->error = 0;
while((sdmmc_read16(REG_SDSTATUS1) & TMIO_STAT1_CMD_BUSY)); //mmc working?
sdmmc_write16(REG_SDIRMASK0,0);
sdmmc_write16(REG_SDIRMASK1,0);
sdmmc_write16(REG_SDSTATUS0,0);
sdmmc_write16(REG_SDSTATUS1,0);
sdmmc_write16(REG_SDCMDARG0,args &0xFFFF);
sdmmc_write16(REG_SDCMDARG1,args >> 16);
sdmmc_write16(REG_SDCMD,cmd &0xFFFF);
uint32_t size = ctx->size;
uint16_t *dataPtr = (uint16_t*)ctx->data;
uint32_t *dataPtr32 = (uint32_t*)ctx->data;
bool useBuf = ( NULL != dataPtr );
bool useBuf32 = (useBuf && (0 == (3 & ((uint32_t)dataPtr))));
uint16_t status0 = 0;
while(1) {
volatile uint16_t status1 = sdmmc_read16(REG_SDSTATUS1);
volatile uint16_t ctl32 = sdmmc_read16(REG_SDDATACTL32);
if((ctl32 & 0x100))
{
if(readdata) {
if(useBuf) {
sdmmc_mask16(REG_SDSTATUS1, TMIO_STAT1_RXRDY, 0);
if(size > 0x1FF) {
if(useBuf32) {
for(i = 0; i<0x200; i+=4) {
*dataPtr32++ = sdmmc_read32(REG_SDFIFO32);
}
} else {
for(i = 0; i<0x200; i+=2) {
*dataPtr++ = sdmmc_read16(REG_SDFIFO);
}
}
size -= 0x200;
}
}
sdmmc_mask16(REG_SDDATACTL32, 0x800, 0);
}
}
if(status1 & TMIO_MASK_GW) {
ctx->error |= 4;
break;
}
if(!(status1 & TMIO_STAT1_CMD_BUSY)) {
status0 = sdmmc_read16(REG_SDSTATUS0);
if(sdmmc_read16(REG_SDSTATUS0) & TMIO_STAT0_CMDRESPEND) {
ctx->error |= 0x1;
}
if(status0 & TMIO_STAT0_DATAEND) {
ctx->error |= 0x2;
}
if((status0 & flags) == flags)
break;
}
}
ctx->stat0 = sdmmc_read16(REG_SDSTATUS0);
ctx->stat1 = sdmmc_read16(REG_SDSTATUS1);
sdmmc_write16(REG_SDSTATUS0,0);
sdmmc_write16(REG_SDSTATUS1,0);
if(getSDRESP != 0) {
ctx->ret[0] = sdmmc_read16(REG_SDRESP0) | (sdmmc_read16(REG_SDRESP1) << 16);
ctx->ret[1] = sdmmc_read16(REG_SDRESP2) | (sdmmc_read16(REG_SDRESP3) << 16);
ctx->ret[2] = sdmmc_read16(REG_SDRESP4) | (sdmmc_read16(REG_SDRESP5) << 16);
ctx->ret[3] = sdmmc_read16(REG_SDRESP6) | (sdmmc_read16(REG_SDRESP7) << 16);
}
}
//---------------------------------------------------------------------------------
int sdmmc_cardinserted() {
//---------------------------------------------------------------------------------
return 1; //sdmmc_cardready;
}
//---------------------------------------------------------------------------------
void sdmmc_controller_init(bool force) {
//---------------------------------------------------------------------------------
deviceSD.isSDHC = 0;
deviceSD.SDOPT = 0;
deviceSD.res = 0;
deviceSD.initarg = 0;
deviceSD.clk = 0x80;
deviceSD.devicenumber = 0;
*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) &= 0xF7FFu;
*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) &= 0xEFFFu;
*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) |= 0x402u;
*(vu16*)(SDMMC_BASE + REG_SDDATACTL) = (*(vu16*)(SDMMC_BASE + REG_SDDATACTL) & 0xFFDD) | 2;
*(vu16*)(SDMMC_BASE + REG_SDDATACTL32) &= 0xFFFFu;
*(vu16*)(SDMMC_BASE + REG_SDDATACTL) &= 0xFFDFu;
*(vu16*)(SDMMC_BASE + REG_SDBLKLEN32) = 512;
*(vu16*)(SDMMC_BASE + REG_SDBLKCOUNT32) = 1;
*(vu16*)(SDMMC_BASE + REG_SDRESET) &= 0xFFFEu;
*(vu16*)(SDMMC_BASE + REG_SDRESET) |= 1u;
*(vu16*)(SDMMC_BASE + REG_SDIRMASK0) |= TMIO_MASK_ALL;
*(vu16*)(SDMMC_BASE + REG_SDIRMASK1) |= TMIO_MASK_ALL>>16;
*(vu16*)(SDMMC_BASE + 0x0fc) |= 0xDBu; //SDCTL_RESERVED7
*(vu16*)(SDMMC_BASE + 0x0fe) |= 0xDBu; //SDCTL_RESERVED8
*(vu16*)(SDMMC_BASE + REG_SDPORTSEL) &= 0xFFFCu;
*(vu16*)(SDMMC_BASE + REG_SDCLKCTL) = 0x20;
*(vu16*)(SDMMC_BASE + REG_SDOPT) = 0x40EE;
*(vu16*)(SDMMC_BASE + REG_SDPORTSEL) &= 0xFFFCu;
*(vu16*)(SDMMC_BASE + REG_SDBLKLEN) = 512;
*(vu16*)(SDMMC_BASE + REG_SDSTOP) = 0;
}
//---------------------------------------------------------------------------------
int sdmmc_sdcard_init() {
//---------------------------------------------------------------------------------
setTarget(&deviceSD);
swiDelay(0xF000);
sdmmc_send_command(&deviceSD,0,0);
sdmmc_send_command(&deviceSD,0x10408,0x1AA);
u32 temp = (deviceSD.error & 0x1) << 0x1E;
u32 temp2 = 0;
do {
do {
sdmmc_send_command(&deviceSD,0x10437,deviceSD.initarg << 0x10);
sdmmc_send_command(&deviceSD,0x10769,0x00FF8000 | temp);
temp2 = 1;
} while ( !(deviceSD.error & 1) );
} while((deviceSD.ret[0] & 0x80000000) == 0);
if(!((deviceSD.ret[0] >> 30) & 1) || !temp)
temp2 = 0;
deviceSD.isSDHC = temp2;
sdmmc_send_command(&deviceSD,0x10602,0);
if (deviceSD.error & 0x4) return -1;
sdmmc_send_command(&deviceSD,0x10403,0);
if (deviceSD.error & 0x4) return -1;
deviceSD.initarg = deviceSD.ret[0] >> 0x10;
sdmmc_send_command(&deviceSD,0x10609,deviceSD.initarg << 0x10);
if (deviceSD.error & 0x4) return -1;
deviceSD.clk = 1;
setckl(1);
sdmmc_send_command(&deviceSD,0x10507,deviceSD.initarg << 0x10);
if (deviceSD.error & 0x4) return -1;
sdmmc_send_command(&deviceSD,0x10437,deviceSD.initarg << 0x10);
if (deviceSD.error & 0x4) return -1;
sdmmc_send_command(&deviceSD,0x1076A,0x0);
if (deviceSD.error & 0x4) return -1;
sdmmc_send_command(&deviceSD,0x10437,deviceSD.initarg << 0x10);
if (deviceSD.error & 0x4) return -1;
deviceSD.SDOPT = 1;
sdmmc_send_command(&deviceSD,0x10446,0x2);
if (deviceSD.error & 0x4) return -1;
sdmmc_send_command(&deviceSD,0x1040D,deviceSD.initarg << 0x10);
if (deviceSD.error & 0x4) return -1;
sdmmc_send_command(&deviceSD,0x10410,0x200);
if (deviceSD.error & 0x4) return -1;
deviceSD.clk |= 0x200;
return 0;
}
//---------------------------------------------------------------------------------
int sdmmc_sdcard_readsectors(u32 sector_no, u32 numsectors, void *out) {
//---------------------------------------------------------------------------------
if (deviceSD.isSDHC == 0)
sector_no <<= 9;
setTarget(&deviceSD);
sdmmc_write16(REG_SDSTOP,0x100);
sdmmc_write16(REG_SDBLKCOUNT32,numsectors);
sdmmc_write16(REG_SDBLKLEN32,0x200);
sdmmc_write16(REG_SDBLKCOUNT,numsectors);
deviceSD.data = out;
deviceSD.size = numsectors << 9;
sdmmc_send_command(&deviceSD,0x33C12,sector_no);
return geterror(&deviceSD);
}
#endif

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@ -0,0 +1,194 @@
#ifndef __SDMMC_H__
#define __SDMMC_H__
#include <nds/ndstypes.h>
#define DATA32_SUPPORT
#define SDMMC_BASE 0x04004800
#define REG_SDCMD 0x00
#define REG_SDPORTSEL 0x02
#define REG_SDCMDARG 0x04
#define REG_SDCMDARG0 0x04
#define REG_SDCMDARG1 0x06
#define REG_SDSTOP 0x08
#define REG_SDRESP 0x0c
#define REG_SDBLKCOUNT 0x0a
#define REG_SDRESP0 0x0c
#define REG_SDRESP1 0x0e
#define REG_SDRESP2 0x10
#define REG_SDRESP3 0x12
#define REG_SDRESP4 0x14
#define REG_SDRESP5 0x16
#define REG_SDRESP6 0x18
#define REG_SDRESP7 0x1a
#define REG_SDSTATUS0 0x1c
#define REG_SDSTATUS1 0x1e
#define REG_SDIRMASK0 0x20
#define REG_SDIRMASK1 0x22
#define REG_SDCLKCTL 0x24
#define REG_SDBLKLEN 0x26
#define REG_SDOPT 0x28
#define REG_SDFIFO 0x30
#define REG_SDDATACTL 0xd8
#define REG_SDRESET 0xe0
#define REG_SDPROTECTED 0xf6 //bit 0 determines if sd is protected or not?
#define REG_SDDATACTL32 0x100
#define REG_SDBLKLEN32 0x104
#define REG_SDBLKCOUNT32 0x108
#define REG_SDFIFO32 0x10C
#define REG_CLK_AND_WAIT_CTL 0x138
#define REG_RESET_SDIO 0x1e0
//The below defines are from linux kernel drivers/mmc tmio_mmc.h.
/* Definitions for values the CTRL_STATUS register can take. */
#define TMIO_STAT0_CMDRESPEND 0x0001
#define TMIO_STAT0_DATAEND 0x0004
#define TMIO_STAT0_CARD_REMOVE 0x0008
#define TMIO_STAT0_CARD_INSERT 0x0010
#define TMIO_STAT0_SIGSTATE 0x0020
#define TMIO_STAT0_WRPROTECT 0x0080
#define TMIO_STAT0_CARD_REMOVE_A 0x0100
#define TMIO_STAT0_CARD_INSERT_A 0x0200
#define TMIO_STAT0_SIGSTATE_A 0x0400
#define TMIO_STAT1_CMD_IDX_ERR 0x0001
#define TMIO_STAT1_CRCFAIL 0x0002
#define TMIO_STAT1_STOPBIT_ERR 0x0004
#define TMIO_STAT1_DATATIMEOUT 0x0008
#define TMIO_STAT1_RXOVERFLOW 0x0010
#define TMIO_STAT1_TXUNDERRUN 0x0020
#define TMIO_STAT1_CMDTIMEOUT 0x0040
#define TMIO_STAT1_RXRDY 0x0100
#define TMIO_STAT1_TXRQ 0x0200
#define TMIO_STAT1_ILL_FUNC 0x2000
#define TMIO_STAT1_CMD_BUSY 0x4000
#define TMIO_STAT1_ILL_ACCESS 0x8000
#define SDMC_NORMAL 0x00000000
#define SDMC_ERR_COMMAND 0x00000001
#define SDMC_ERR_CRC 0x00000002
#define SDMC_ERR_END 0x00000004
#define SDMC_ERR_TIMEOUT 0x00000008
#define SDMC_ERR_FIFO_OVF 0x00000010
#define SDMC_ERR_FIFO_UDF 0x00000020
#define SDMC_ERR_WP 0x00000040
#define SDMC_ERR_ABORT 0x00000080
#define SDMC_ERR_FPGA_TIMEOUT 0x00000100
#define SDMC_ERR_PARAM 0x00000200
#define SDMC_ERR_R1_STATUS 0x00000800
#define SDMC_ERR_NUM_WR_SECTORS 0x00001000
#define SDMC_ERR_RESET 0x00002000
#define SDMC_ERR_ILA 0x00004000
#define SDMC_ERR_INFO_DETECT 0x00008000
#define SDMC_STAT_ERR_UNKNOWN 0x00080000
#define SDMC_STAT_ERR_CC 0x00100000
#define SDMC_STAT_ERR_ECC_FAILED 0x00200000
#define SDMC_STAT_ERR_CRC 0x00800000
#define SDMC_STAT_ERR_OTHER 0xf9c70008
#define TMIO_MASK_ALL 0x837f031d
#define TMIO_MASK_GW (TMIO_STAT1_ILL_ACCESS | TMIO_STAT1_CMDTIMEOUT | TMIO_STAT1_TXUNDERRUN | TMIO_STAT1_RXOVERFLOW | \
TMIO_STAT1_DATATIMEOUT | TMIO_STAT1_STOPBIT_ERR | TMIO_STAT1_CRCFAIL | TMIO_STAT1_CMD_IDX_ERR)
#define TMIO_MASK_READOP (TMIO_STAT1_RXRDY | TMIO_STAT1_DATAEND)
#define TMIO_MASK_WRITEOP (TMIO_STAT1_TXRQ | TMIO_STAT1_DATAEND)
typedef struct mmcdevice {
u8* data;
u32 size;
u32 error;
u16 stat0;
u16 stat1;
u32 ret[4];
u32 initarg;
u32 isSDHC;
u32 clk;
u32 SDOPT;
u32 devicenumber;
u32 total_size; //size in sectors of the device
u32 res;
} mmcdevice;
enum {
MMC_DEVICE_SDCARD,
MMC_DEVICE_NAND,
};
void sdmmc_controller_init(bool force_init);
void sdmmc_initirq();
int sdmmc_cardinserted();
int sdmmc_sdcard_init();
int sdmmc_nand_init();
void sdmmc_get_cid(int devicenumber, u32 *cid);
static inline void sdmmc_nand_cid( u32 *cid) {
sdmmc_get_cid(MMC_DEVICE_NAND,cid);
}
static inline void sdmmc_sdcard_cid( u32 *cid) {
sdmmc_get_cid(MMC_DEVICE_SDCARD,cid);
}
int sdmmc_sdcard_readsectors(u32 sector_no, u32 numsectors, void *out);
int sdmmc_sdcard_writesectors(u32 sector_no, u32 numsectors, void *in);
int sdmmc_nand_readsectors(u32 sector_no, u32 numsectors, void *out);
int sdmmc_nand_writesectors(u32 sector_no, u32 numsectors, void *in);
extern u32 sdmmc_cid[];
extern int sdmmc_curdevice;
//---------------------------------------------------------------------------------
static inline u16 sdmmc_read16(u16 reg) {
//---------------------------------------------------------------------------------
return *(vu16*)(SDMMC_BASE + reg);
}
//---------------------------------------------------------------------------------
static inline void sdmmc_write16(u16 reg, u16 val) {
//---------------------------------------------------------------------------------
*(vu16*)(SDMMC_BASE + reg) = val;
}
//---------------------------------------------------------------------------------
static inline u32 sdmmc_read32(u16 reg) {
//---------------------------------------------------------------------------------
return *(vu32*)(SDMMC_BASE + reg);
}
//---------------------------------------------------------------------------------
static inline void sdmmc_write32(u16 reg, u32 val) {
//---------------------------------------------------------------------------------
*(vu32*)(SDMMC_BASE + reg) = val;
}
//---------------------------------------------------------------------------------
static inline void sdmmc_mask16(u16 reg, u16 clear, u16 set) {
//---------------------------------------------------------------------------------
u16 val = sdmmc_read16(reg);
val &= ~clear;
val |= set;
sdmmc_write16(reg, val);
}
//---------------------------------------------------------------------------------
static inline void setckl(u32 data) {
//---------------------------------------------------------------------------------
sdmmc_mask16(REG_SDCLKCTL, 0x100, 0);
sdmmc_mask16(REG_SDCLKCTL, 0x2FF, data & 0x2FF);
sdmmc_mask16(REG_SDCLKCTL, 0x0, 0x100);
}
#endif