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#include <gba_console.h>
#include <gba_video.h>
#include <gba_interrupt.h>
#include <gba_systemcalls.h>
#include <gba_input.h>
#include <gba_sio.h>
#include <stdio.h>
#include <stdlib.h>
u32 getGameSize(void)
{
if(*(vu32*)(0x08000004) != 0x51AEFF24)
return 0;
u32 i;
for(i = (1<<20); i < (1<<25); i<<=1)
{
vu16 *rompos = (vu16*)(0x08000000+i);
int j;
bool romend = true;
for(j = 0; j < 0x1000; j++)
{
if(rompos[j] != j)
{
romend = false;
break;
}
}
if(romend) break;
}
return i;
}
//---------------------------------------------------------------------------------
// Program entry point
//---------------------------------------------------------------------------------
int main(void) {
//---------------------------------------------------------------------------------
// the vblank interrupt must be enabled for VBlankIntrWait() to work
// since the default dispatcher handles the bios flags no vblank handler
// is required
irqInit();
irqEnable(IRQ_VBLANK);
consoleDemoInit();
REG_JOYTR = 0;
// ansi escape sequence to set print co-ordinates
// /x1b[line;columnH
u32 i;
iprintf("\x1b[9;10HROM Dumper\n");
iprintf("\x1b[10;5HPlease look at the TV\n");
REG_HS_CTRL |= 6;
while (1) {
if((REG_HS_CTRL&4))
{
REG_HS_CTRL |= 4;
u32 gamesize = getGameSize();
REG_JOYTR = gamesize;
while((REG_HS_CTRL&4) == 0) ;
REG_HS_CTRL |= 4;
if(gamesize == 0)
{
REG_JOYTR = 0;
continue; //nothing to read
}
//game in, send header
for(i = 0; i < 0xC0; i+=4)
{
REG_JOYTR = *(vu32*)(0x08000000+i);
while((REG_HS_CTRL&4) == 0) ;
REG_HS_CTRL |= 4;
}
//wait for other side to choose
while((REG_HS_CTRL&2) == 0) ;
REG_HS_CTRL |= 2;
if(REG_JOYRE == 0)
{
REG_JOYTR = 0;
continue; //nothing to read
}
//dump the game
for(i = 0; i < gamesize; i+=4)
{
REG_JOYTR = *(vu32*)(0x08000000+i);
while((REG_HS_CTRL&4) == 0) ;
REG_HS_CTRL |= 4;
}
REG_JOYTR = 0;
}
Halt();
}
}
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