added gba bios dumping

2 files changed, 67 insertions, 4 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();
         }
 }
@@ -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);
+                                        }
+                                }
                         }
                 }
         }