added gba bios dumping

1 files changed, 28 insertions, 2 deletions

@@ -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();
         }
 }