mirror of
https://github.com/ApacheThunder/GodMode9Nrio.git
synced 2025-06-19 03:05:34 -04:00
27d6c3c6c1
* Screenshot feature removed to free up more ram. * SCFG register changes on startup moved to dedicated function run from ITCM memory. This should hopefully reduce instances where program hangs at startup. Bootstarp is still provided incase some people still have that problem.
115 lines
3.5 KiB
C++
115 lines
3.5 KiB
C++
/*-----------------------------------------------------------------
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Copyright (C) 2010 Dave "WinterMute" Murphy
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (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, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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------------------------------------------------------------------*/
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#include <nds.h>
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#include <nds/arm9/decompress.h>
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#include <fat.h>
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#include <limits.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include "inifile.h"
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#include "nds_loader_arm9.h"
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// #include "crc.h"
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// #include "nds_card.h"
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#include "topLoad.h"
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#include "topError.h"
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#include "subError.h"
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#include "subPrompt.h"
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#define CONSOLE_SCREEN_WIDTH 32
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#define CONSOLE_SCREEN_HEIGHT 24
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static bool ScreenInit = false;
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void vramcpy_ui (void* dest, const void* src, int size)
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{
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u16* destination = (u16*)dest;
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u16* source = (u16*)src;
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while (size > 0) {
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*destination++ = *source++;
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size-=2;
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}
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}
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void BootSplashInit() {
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if (ScreenInit)return;
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videoSetMode(MODE_0_2D | DISPLAY_BG0_ACTIVE);
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videoSetModeSub(MODE_0_2D | DISPLAY_BG0_ACTIVE);
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vramSetBankA (VRAM_A_MAIN_BG_0x06000000);
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vramSetBankC (VRAM_C_SUB_BG_0x06200000);
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REG_BG0CNT = BG_MAP_BASE(0) | BG_COLOR_256 | BG_TILE_BASE(2);
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REG_BG0CNT_SUB = BG_MAP_BASE(0) | BG_COLOR_256 | BG_TILE_BASE(2);
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BG_PALETTE[0]=0;
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BG_PALETTE[255]=0xffff;
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u16* bgMapTop = (u16*)SCREEN_BASE_BLOCK(0);
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u16* bgMapSub = (u16*)SCREEN_BASE_BLOCK_SUB(0);
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for (int i = 0; i < CONSOLE_SCREEN_WIDTH*CONSOLE_SCREEN_HEIGHT; i++) { bgMapTop[i] = (u16)i; bgMapSub[i] = (u16)i; }
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ScreenInit = true;
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}
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void CartridgePrompt() {
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BootSplashInit();
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// Display Load Screen
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decompress((void*)topLoadTiles, (void*)CHAR_BASE_BLOCK(2), LZ77Vram);
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decompress((void*)subPromptTiles, (void*)CHAR_BASE_BLOCK_SUB(2), LZ77Vram);
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vramcpy_ui (&BG_PALETTE[0], topLoadPal, topLoadPalLen);
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vramcpy_ui (&BG_PALETTE_SUB[0], subPromptPal, subPromptPalLen);
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for (int i = 0; i < 20; i++) { swiWaitForVBlank(); }
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}
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ITCM_CODE void CheckSlot() {
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if (REG_SCFG_MC == 0x11) {
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do { CartridgePrompt(); }
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while (REG_SCFG_MC == 0x11);
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disableSlot1();
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for (int i = 0; i < 25; i++) { swiWaitForVBlank(); }
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enableSlot1();
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} else {
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if(REG_SCFG_MC == 0x10) {
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disableSlot1();
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for (int i = 0; i < 25; i++) { swiWaitForVBlank(); }
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enableSlot1();
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}
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}
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}
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ITCM_CODE int main( int argc, char **argv) {
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defaultExceptionHandler();
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if (fatInitDefault()) {
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CIniFile GM9NBootstrap( "/_nds/GM9N_Bootstrap.ini" );
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std::string ndsPath = GM9NBootstrap.GetString( "GM9N_BOOTSTRAP", "SRL", "/NDS/GodMode9Nrio.nds");
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CheckSlot();
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runNdsFile(ndsPath.c_str(), 0, NULL);
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} else {
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BootSplashInit();
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// Display Error Screen
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decompress((void*)topErrorTiles, (void*)CHAR_BASE_BLOCK(2), LZ77Vram);
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decompress((void*)subErrorTiles, (void*)CHAR_BASE_BLOCK_SUB(2), LZ77Vram);
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vramcpy_ui (&BG_PALETTE[0], topErrorPal, topErrorPalLen);
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vramcpy_ui (&BG_PALETTE_SUB[0], subErrorPal, subErrorPalLen);
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}
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while(1) { swiWaitForVBlank(); }
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}
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