Attempt to decompile osEPiRawStartDma

src/include/PR/os_misc.h

@@ -97,6 +97,12 @@ typedef char *va_list;
 #define EEP16K_MAXBLOCKS	256
 #define EEPROM_BLOCK_SIZE	8
 
+/*
+ * PI/EPI
+ */
+#define PI_DOMAIN1      0
+#define PI_DOMAIN2      1
+
 /* Miscellaneous OS functions */
 
 void osInitialize(void);

src/include/PR/os_pi.h

@@ -88,6 +88,10 @@ typedef struct {
     while (stat & (PI_STATUS_IO_BUSY | PI_STATUS_DMA_BUSY)) \
         stat = IO_READ(PI_STATUS_REG);
 
+#define UPDATE_REG(reg, var)           \
+    if (cHandle->var != pihandle->var) \
+        IO_WRITE(reg, pihandle->var);
+
 /* Functions */
 
 s32 osPiStartDma(OSIoMesg *mb, s32 priority, s32 direction,