X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=plugins%2Fdfsound%2Fdma.c;h=533d95e90a572d3d026b95c1a3cb7a51f9b1b3f8;hb=20a3a441bc4176d91cd4d41f8dedf12a9f448abb;hp=4798a19bc0531c8d3cb08973ec9859e1bb0b566d;hpb=5514a050f4e936f5c333fa1271b11bf5a6a9ea39;p=pcsx_rearmed.git

diff --git a/plugins/dfsound/dma.c b/plugins/dfsound/dma.c
index 4798a19b..533d95e9 100644
--- a/plugins/dfsound/dma.c
+++ b/plugins/dfsound/dma.c
@@ -20,19 +20,7 @@
 #define _IN_DMA
 
 #include "externals.h"
-
-////////////////////////////////////////////////////////////////////////
-// READ DMA (one value)
-////////////////////////////////////////////////////////////////////////
-
-unsigned short CALLBACK SPUreadDMA(void)
-{
- unsigned short s = *(unsigned short *)(spu.spuMemC + spu.spuAddr);
- spu.spuAddr += 2;
- spu.spuAddr &= 0x7fffe;
-
- return s;
-}
+#include "registers.h"
 
 ////////////////////////////////////////////////////////////////////////
 // READ DMA (many values)
@@ -41,36 +29,21 @@ unsigned short CALLBACK SPUreadDMA(void)
 void CALLBACK SPUreadDMAMem(unsigned short *pusPSXMem, int iSize,
  unsigned int cycles)
 {
- int i;
+ unsigned int addr = spu.spuAddr, irq_addr = regAreaGet(H_SPUirqAddr) << 3;
+ int i, irq;
 
  do_samples_if_needed(cycles, 1);
-
- for(i=0;i<iSize;i++)
-  {
-   *pusPSXMem++ = *(unsigned short *)(spu.spuMemC + spu.spuAddr);
-   spu.spuAddr += 2;
-   spu.spuAddr &= 0x7fffe;
-  }
-}
-
-////////////////////////////////////////////////////////////////////////
-////////////////////////////////////////////////////////////////////////
-////////////////////////////////////////////////////////////////////////
-
-// to investigate: do sound data updates by writedma affect spu
-// irqs? Will an irq be triggered, if new data is written to
-// the memory irq address?
-
-////////////////////////////////////////////////////////////////////////
-// WRITE DMA (one value)
-////////////////////////////////////////////////////////////////////////
-  
-void CALLBACK SPUwriteDMA(unsigned short val)
-{
- *(unsigned short *)(spu.spuMemC + spu.spuAddr) = val;
-
- spu.spuAddr += 2;
- spu.spuAddr &= 0x7fffe;
+ irq = addr <= irq_addr && irq_addr < addr + iSize*2;
+
+ for(i = 0; i < iSize; i++)
+ {
+  *pusPSXMem++ = *(unsigned short *)(spu.spuMemC + addr);
+  addr += 2;
+  addr &= 0x7fffe;
+ }
+ if (irq && (spu.spuCtrl & CTRL_IRQ))
+  log_unhandled("rdma spu irq: %x/%x+%x\n", irq_addr, spu.spuAddr, iSize * 2);
+ spu.spuAddr = addr;
 }
 
 ////////////////////////////////////////////////////////////////////////
@@ -80,23 +53,31 @@ void CALLBACK SPUwriteDMA(unsigned short val)
 void CALLBACK SPUwriteDMAMem(unsigned short *pusPSXMem, int iSize,
  unsigned int cycles)
 {
- int i;
+ unsigned int addr = spu.spuAddr, irq_addr = regAreaGet(H_SPUirqAddr) << 3;
+ int i, irq;
  
  do_samples_if_needed(cycles, 1);
-
- if(spu.spuAddr + iSize*2 < 0x80000)
-  {
-   memcpy(spu.spuMemC + spu.spuAddr, pusPSXMem, iSize*2);
-   spu.spuAddr += iSize*2;
-   return;
-  }
-
- for(i=0;i<iSize;i++)
+ spu.bMemDirty = 1;
+ irq = addr <= irq_addr && irq_addr < addr + iSize*2;
+
+ if (addr + iSize*2 < 0x80000)
+ {
+  memcpy(spu.spuMemC + addr, pusPSXMem, iSize*2);
+  addr += iSize*2;
+ }
+ else
+ {
+  irq |= irq_addr < ((addr + iSize*2) & 0x7ffff);
+  for (i = 0; i < iSize; i++)
   {
-   *(unsigned short *)(spu.spuMemC + spu.spuAddr) = *pusPSXMem++;
-   spu.spuAddr += 2;
-   spu.spuAddr &= 0x7fffe;
+   *(unsigned short *)(spu.spuMemC + addr) = *pusPSXMem++;
+   addr += 2;
+   addr &= 0x7fffe;
   }
+ }
+ if (irq && (spu.spuCtrl & CTRL_IRQ)) // unhandled because need to implement delay
+  log_unhandled("wdma spu irq: %x/%x+%x\n", irq_addr, spu.spuAddr, iSize * 2);
+ spu.spuAddr = addr;
 }
 
 ////////////////////////////////////////////////////////////////////////