/*
DS_ClearVRAM:
Make sure all of the video memory and background/object palettes
are zeroed out just in-case the loader doesn't do it for us.
*/
LOCALPROC DS_ClearVRAM(void)
{
vramSetPrimaryBanks(VRAM_A_LCD, VRAM_B_LCD, VRAM_C_LCD, VRAM_D_LCD);
dmaFillWords(0, (void *) VRAM_A, 128 * 1024 * 4);
dmaFillWords(0, (void *) BG_PALETTE, 256 * 2);
dmaFillWords(0, (void *) BG_PALETTE_SUB, 256 * 2);
dmaFillWords(0, (void *) SPRITE_PALETTE, 256 * 2);
dmaFillWords(0, (void *) SPRITE_PALETTE_SUB, 256 * 2);
vramDefault();
}
//---------------------------------------------------------------------------------
// Reset the DS registers to sensible defaults
//---------------------------------------------------------------------------------
void __attribute__((weak)) initSystem(void) {
//---------------------------------------------------------------------------------
register int i;
// stop timers and dma
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;
}
// clear video display registers
dmaFillWords(0, (void*)0x04000000, 0x56);
dmaFillWords(0, (void*)0x04001008, 0x56);
videoSetModeSub(0);
vramDefault();
VRAM_E_CR = 0;
VRAM_F_CR = 0;
VRAM_G_CR = 0;
VRAM_H_CR = 0;
VRAM_I_CR = 0;
irqInit();
fifoInit();
fifoSetValue32Handler(FIFO_PM, powerValueHandler, 0);
fifoSetDatamsgHandler(FIFO_SYSTEM, systemMsgHandler, 0);
if(REG_DSIMODE) {
fifoSendValue32(FIFO_PM,PM_DSI_HACK);
__dsimode = true;
}
__transferRegion()->buttons = 0xffff;
punixTime = (time_t*)memUncached((void *)&__transferRegion()->unixTime);
__syscalls.exit = __libnds_exit;
extern char *fake_heap_end;
__transferRegion()->bootcode = (struct __bootstub *)fake_heap_end;
irqEnable(IRQ_VBLANK);
}
int splashScreen::events()
{
touchRead(&touch);
scanKeys();
int pressed = keysDown();
if((pressed & KEY_TOUCH)) return MAINMENU;
int keys = keysHeld();
if(keys & KEY_START)
{
timer = 301;
}
if(timer<300)
{
return SPLASHSCREEN;
}
bgHide(bg3);
bgHide(bg2);
vramDefault();
initiated = false;
return MAINMENU;
}
