finish main.c

include/gba/macro.h

@@ -167,6 +167,12 @@
 #define DmaClear16Defvars(dmaNum, dest, size) DmaClearDefvars(dmaNum, dest, size, 16)
 #define DmaClear32Defvars(dmaNum, dest, size) DmaClearDefvars(dmaNum, dest, size, 32)
 
+#define DmaWait(DmaNo)                                      \
+{                                                           \
+    vu32 *(DmaCntp) = (vu32 *)REG_ADDR_DMA##DmaNo;               \
+    while (DmaCntp[2] & (DMA_ENABLE << 16)) ;                       \
+}
+
 #define IntrEnable(flags)  \
     {                      \
         u16 imeTemp;       \

include/gba/syscall.h

@@ -11,6 +11,18 @@
 #define RESET_REGS 0x80
 #define RESET_ALL 0xFF
 
+#define SystemCall(x) { asm("svc " #x); }
+
+extern void SoundBiasReset();
+extern void SoundBiasSet();
+
+#define Stop()                                               \
+{                                                            \
+    SoundBiasReset();                                        \
+    SystemCall(3);                                           \
+    SoundBiasSet();                                          \
+}
+
 void SoftReset(u32 resetFlags);
 
 void RegisterRamReset(u32 resetFlags);