Leahnaya/gba-link-cable-dumper
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added gba bios dumping

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This commit is contained in:
FIX94
2016-04-10 16:14:38 +02:00
parent 378d297c65
commit 089ba86faf
2 changed files with 67 additions and 4 deletions
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30
gba/source/main.c
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@@ -56,7 +56,7 @@ int main(void) {
// ansi escape sequence to set print co-ordinates
// /x1b[line;columnH
u32 i;
iprintf("\x1b[9;2HGBA Link Cable Dumper v1.3\n");
iprintf("\x1b[9;2HGBA Link Cable Dumper v1.4\n");
iprintf("\x1b[10;4HPlease look at the TV\n");
// disable this, needs power
SNDSTAT = 0;
@@ -66,7 +66,7 @@ int main(void) {
//clear out previous messages
REG_HS_CTRL |= JOY_RW;
while (1) {
if((REG_HS_CTRL&JOY_READ))
if(REG_HS_CTRL&JOY_READ)
{
REG_HS_CTRL |= JOY_RW;
s32 gamesize = getGameSize();
@@ -199,6 +199,32 @@ int main(void) {
}
REG_JOYTR = 0;
}
else if(REG_HS_CTRL&JOY_WRITE)
{
REG_HS_CTRL |= JOY_RW;
u32 choseval = REG_JOYRE;
if(choseval == 4)
{
//disable interrupts
u32 prevIrqMask = REG_IME;
REG_IME = 0;
//dump BIOS
for (i = 0; i < 0x4000; i+=4)
{
// the lower bits are inaccurate, so just get it four times :)
u32 a = MidiKey2Freq((WaveData *)(i-4), 180-12, 0) * 2;
u32 b = MidiKey2Freq((WaveData *)(i-3), 180-12, 0) * 2;
u32 c = MidiKey2Freq((WaveData *)(i-2), 180-12, 0) * 2;
u32 d = MidiKey2Freq((WaveData *)(i-1), 180-12, 0) * 2;
REG_JOYTR = ((a>>24<<24) | (d>>24<<16) | (c>>24<<8) | (b>>24));
while((REG_HS_CTRL&JOY_READ) == 0) ;
REG_HS_CTRL |= JOY_RW;
}
//restore interrupts
REG_IME = prevIrqMask;
}
REG_JOYTR = 0;
}
Halt();
}
}

41
source/main.c
View File

@@ -23,8 +23,9 @@ void printmain()
{
printf("\x1b[2J");
printf("\x1b[37m");
printf("GBA Link Cable Dumper v1.3 by FIX94\n");
printf("GBA Link Cable Dumper v1.4 by FIX94\n");
printf("Save Support based on SendSave by Chishm\n");
printf("GBA BIOS Dumper by Dark Fader\n \n");
}
u8 *resbuf,*cmdbuf;
@@ -312,7 +313,8 @@ int main(int argc, char *argv[])
while(1)
{
printmain();
printf("Press A once you have a GBA Game inserted.\n \n");
printf("Press A once you have a GBA Game inserted.\n");
printf("Press Y to backup the GBA BIOS.\n \n");
PAD_ScanPads();
VIDEO_WaitVSync();
u32 btns = PAD_ButtonsDown(0);
@@ -512,6 +514,41 @@ int main(int argc, char *argv[])
}
}
}
else if(btns&PAD_BUTTON_Y)
{
char biosname[64];
sprintf(biosname,"/dumps/gba_bios.bin");
FILE *f = fopen(biosname,"rb");
if(f)
{
fclose(f);
warnError("ERROR: BIOS already backed up!\n");
}
else
{
//create base file with size
printf("Preparing file...\n");
createFile(biosname,0x4000);
f = fopen(biosname,"wb");
if(!f)
fatalError("ERROR: Could not create file! Exit...");
//send over bios dump command
sendsafe_wait(4);
//the gba might still be in a loop itself
VIDEO_WaitVSync(); VIDEO_WaitVSync();
VIDEO_WaitVSync(); VIDEO_WaitVSync();
VIDEO_WaitVSync(); VIDEO_WaitVSync();
//lets go!
printf("Dumping...\n");
for(i = 0; i < 0x4000; i+=4)
*(vu32*)(testdump+i) = recvsafe();
fwrite(testdump,0x4000,1,f);
printf("Closing file\n");
fclose(f);
printf("BIOS dumped!\n");
sleep(5);
}
}
}
}
}