mirror of
https://github.com/coderkei/akmenu-next.git
synced 2025-06-19 01:15:32 -04:00
a7dd6151a4
- UTF8-ify where possible - Remove custom linkerscript - Update Makefiles - devkitPro/nds-examples@6afa09b205 - Comment out akloader binaries - This will be reworked soon™️ - Eradicate sdidentify - AKRPG specific - Eradicate libelm - Eradicate save64m - Eradicate file operations - Eradicate libio* - Eradicate crtsmall - Fix paths for new root drive naming in latest libfat - dsrom: fix type cast issue in homebrew check - MAX_FILENAME_LENGTH -> PATH_MAX - adapt directory listing operations to new dkP way - timer: unstaticify _factor - Remove all flashcart-specific bits - fix type of cPopMenu::itemBelowPoint - gbaloader: use updated vramSetPrimaryBanks function - Move arm9-specific headers to arm9
92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/*
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romloader.cpp
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Copyright (C) 2007 Acekard, www.acekard.com
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Copyright (C) 2007-2009 somebody
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Copyright (C) 2009 yellow wood goblin
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <limits.h>
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#include <nds.h>
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#include <fat.h>
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#include "romloader.h"
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#include "dbgtool.h"
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//#include "akloader_arm7_bin.h"
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//#include "akloader_arm9_bin.h"
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#include "savemngr.h"
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#include "../../share/fifotool.h"
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#include "timetool.h"
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#include "globalsettings.h"
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// FIFO_CHANNEL_BITS - number of bits used to specify the channel in a packet - default=4
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#define FIFO_CHANNEL_BITS 4
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#define FIFO_CHANNEL_SHIFT (32-FIFO_CHANNEL_BITS)
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#define FIFO_IMMEDIATEBIT_SHIFT (FIFO_CHANNEL_SHIFT-2)
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#define FIFO_IMMEDIATEBIT (1<<FIFO_IMMEDIATEBIT_SHIFT)
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#define FIFO_EXTRABIT_SHIFT (FIFO_CHANNEL_SHIFT-3)
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#define FIFO_EXTRABIT (1<<FIFO_EXTRABIT_SHIFT)
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#define FIFO_VALUE32_MASK (FIFO_EXTRABIT-1)
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#define FIFO_PACK_VALUE32(channel, value32) \
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( ((channel)<<FIFO_CHANNEL_SHIFT) | FIFO_IMMEDIATEBIT | \
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(((value32))&FIFO_VALUE32_MASK) )
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static void resetAndLoop()
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{
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// Interrupt
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REG_IME = 0;
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REG_IE = 0;
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REG_IF = ~0;
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DC_FlushAll();
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DC_InvalidateAll();
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fifoSendValue32(FIFO_USER_01,MENU_MSG_ARM7_REBOOT);
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while(true)
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{
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while(REG_IPC_FIFO_CR&IPC_FIFO_RECV_EMPTY);
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u32 res=REG_IPC_FIFO_RX;
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if(FIFO_PACK_VALUE32(FIFO_USER_01,MENU_MSG_ARM7_READY_BOOT)==res) break;
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}
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swiSoftReset();
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}
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bool loadRom( const std::string & filename, const std::string & savename, u32 flags, long cheatOffset,size_t cheatSize )
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{
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*(u32*)0x23fd900=flags;
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*(u32*)0x23fd904=cheatOffset;
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*(u32*)0x23fd908=cheatSize;
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memset((void*)0x23fda00,0,PATH_MAX*2);
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strcpy((char*)0x23fda00,filename.c_str());
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strcpy((char*)(0x23fda00+PATH_MAX),savename.c_str());
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dbg_printf( "load %s\n", filename.c_str() );
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// copy loader's arm7 code
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// memcpy( (void *)0x023FA000, akloader_arm7_bin, akloader_arm7_bin_size );
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__NDSHeader->arm7executeAddress = (void*)0x023FA000;
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// copy loader's arm9 code
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// memcpy( (void *)0x023c0000, akloader_arm9_bin, akloader_arm9_bin_size );
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__NDSHeader->arm9executeAddress = (void*)0x023c0000;
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dbg_printf( "load done\n" );
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resetAndLoop();
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return true;
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}
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