progress

Author: Niko

decompile/General/CDSYS/CDSYS_07_SpuCallbackIRQ.c

@@ -17,7 +17,7 @@ half.
   // from TOMB5
   // https://github.com/TOMB5/TOMB5/blob/master/EMULATOR/LIBSPU.H
   #define SPU_CDONLY	5
-  SpuReadDecodedData(&sdata->SpuDecodedData[0], SPU_CDONLY);
+  SpuReadDecodedData(&sdata->SpuDecodedBuf[0], SPU_CDONLY);
 
   if(
 	  (sdata->XA_boolFinished == 0) &&

decompile/General/CDSYS/CDSYS_09_SpuEnableIRQ.c

@@ -2,7 +2,8 @@
 
 void DECOMP_CDSYS_SpuEnableIRQ()
 {
-	int* ptr = &sdata->SpuDecodedData[0];
+	// erase 0x400 bytes
+	int* ptr = &sdata->SpuDecodedBuf[0];
 	for(int i = 0; i < 0x100; i++)
 		ptr[i] = 0;
 

decompile/General/CDSYS/CDSYS_11_SpuGetMaxSample.c

@@ -2,34 +2,23 @@
 
 void DECOMP_CDSYS_SpuGetMaxSample(void)
 {
-	int endIndex;
-    int currIndex;
-    int index2;
-    
+    int index2;   
 	short sample;
     short max;
+	max = 0;
 
-    // if you are not using CD, quit
+	#if 0 // impossible
     if (sdata->boolUseDisc == false) return;
-
-    // range {0x0 - 0x100}
-    if (sdata->irqAddr == 0)
-    {
-        currIndex = 0;
-        endIndex = 0x100;
-    }
-    // otherwise, range {0x100 - 0x200}
-    else
-    {
-		currIndex = 0x100;
-        endIndex = 0x200;
-    }
+	#endif
+	
+	short* ptrSpuBuf = 
+		&sdata->SpuDecodedBuf[sdata->irqAddr];
 
     // loop through region
-    for (max = 0; currIndex < endIndex; currIndex++)
+    for (int i = 0; i < 0x100; i++)
     {
 		// absolute value
-        sample = sdata->SpuDecodedData[currIndex];
+        sample = ptrSpuBuf[i];
         if (sample < 0) sample = -sample;
 
 		// find max
@@ -57,9 +46,8 @@ void DECOMP_CDSYS_SpuGetMaxSample(void)
     // set max to zero
     sdata->XA_MaxSampleValInArr = 0;
 
-    currIndex = sdata->XA_SampleMaxIndex1;
+    int currIndex = sdata->XA_SampleMaxIndex1;
     index2 = sdata->XA_SampleMaxIndex2;
-
     if (index2 == 0) return;
 
     for (; index2 != -1; index2--)

include/regionsEXE.h

@@ -4508,9 +4508,9 @@ struct sData
 	// 80091198 -- JpnRetail
 	// see FUN_8001c8e4
 	#if BUILD == SepReview
-	short SpuDecodedData[0x800];
+	char SpuDecodedBuf[0x1000];
 	#elif BUILD >= UsaRetail
-	short SpuDecodedData[0x400];
+	char SpuDecodedBuf[0x800];
 	#endif
 
 	// 8008E528