X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=pcsx_rearmed.git;a=blobdiff_plain;f=libpcsxcore%2Fpsxcounters.c;h=8fc33b42afb296918846cb9d55fa13c1dcb1e0b1;hp=cd99842b6bf36357f659d72ee76c0128754f8c70;hb=aafcb4ddc257478d613611adcae7cb13fd716577;hpb=95df1a043efd3a11b3cdf90d647fc1b3a96a2c88

diff --git a/libpcsxcore/psxcounters.c b/libpcsxcore/psxcounters.c
index cd99842b..8fc33b42 100644
--- a/libpcsxcore/psxcounters.c
+++ b/libpcsxcore/psxcounters.c
@@ -60,9 +60,9 @@ static const u32 CountToOverflow  = 0;
 static const u32 CountToTarget    = 1;
 
 static const u32 FrameRate[]      = { 60, 50 };
-static const u32 VBlankStart[]    = { 240, 256 };
 static const u32 HSyncTotal[]     = { 263, 313 };
 static const u32 SpuUpdInterval[] = { 32, 32 };
+#define VBlankStart 240
 
 #define VERBOSE_LEVEL 0
 static const s32 VerboseLevel     = VERBOSE_LEVEL;
@@ -128,7 +128,7 @@ void _psxRcntWcount( u32 index, u32 value )
     }
     else
     {
-        rcnts[index].cycle = 0xffff * rcnts[index].rate;
+        rcnts[index].cycle = 0x10000 * rcnts[index].rate;
         rcnts[index].counterState = CountToOverflow;
     }
 }
@@ -143,11 +143,11 @@ u32 _psxRcntRcount( u32 index )
     if (rcnts[index].rate > 1)
         count /= rcnts[index].rate;
 
-    if( count > 0xffff )
+    if( count > 0x10000 )
     {
-        verboseLog( 1, "[RCNT %i] rcount > 0xffff: %x\n", index, count );
-        count &= 0xffff;
+        verboseLog( 1, "[RCNT %i] rcount > 0x10000: %x\n", index, count );
     }
+    count &= 0xffff;
 
     return count;
 }
@@ -188,26 +188,29 @@ void psxRcntSet()
 static
 void psxRcntReset( u32 index )
 {
-    u32 count;
+    u32 rcycles;
 
     rcnts[index].mode |= RcUnknown10;
 
     if( rcnts[index].counterState == CountToTarget )
     {
-        count  = psxRegs.cycle;
-        count -= rcnts[index].cycleStart;
-        if( rcnts[index].rate > 1 )
-            count /= rcnts[index].rate;
+        rcycles = psxRegs.cycle - rcnts[index].cycleStart;
         if( rcnts[index].mode & RcCountToTarget )
-            count -= rcnts[index].target;
-
-        _psxRcntWcount( index, count );
+        {
+            rcycles -= rcnts[index].target * rcnts[index].rate;
+            rcnts[index].cycleStart = psxRegs.cycle - rcycles;
+        }
+        else
+        {
+            rcnts[index].cycle = 0x10000 * rcnts[index].rate;
+            rcnts[index].counterState = CountToOverflow;
+        }
 
         if( rcnts[index].mode & RcIrqOnTarget )
         {
             if( (rcnts[index].mode & RcIrqRegenerate) || (!rcnts[index].irqState) )
             {
-                verboseLog( 3, "[RCNT %i] irq: %x\n", index, count );
+                verboseLog( 3, "[RCNT %i] irq\n", index );
                 setIrq( rcnts[index].irq );
                 rcnts[index].irqState = 1;
             }
@@ -215,25 +218,28 @@ void psxRcntReset( u32 index )
 
         rcnts[index].mode |= RcCountEqTarget;
 
-        if( count < 0xffff ) // special case, overflow too?
+        if( rcycles < 0x10000 * rcnts[index].rate )
             return;
     }
 
     if( rcnts[index].counterState == CountToOverflow )
     {
-        count  = psxRegs.cycle;
-        count -= rcnts[index].cycleStart;
-        if (rcnts[index].rate > 1)
-            count /= rcnts[index].rate;
-        count -= 0xffff;
+        rcycles = psxRegs.cycle - rcnts[index].cycleStart;
+        rcycles -= 0x10000 * rcnts[index].rate;
 
-        _psxRcntWcount( index, count );
+        rcnts[index].cycleStart = psxRegs.cycle - rcycles;
+
+        if( rcycles < rcnts[index].target * rcnts[index].rate )
+        {
+            rcnts[index].cycle = rcnts[index].target * rcnts[index].rate;
+            rcnts[index].counterState = CountToTarget;
+        }
 
         if( rcnts[index].mode & RcIrqOnOverflow )
         {
             if( (rcnts[index].mode & RcIrqRegenerate) || (!rcnts[index].irqState) )
             {
-                verboseLog( 3, "[RCNT %i] irq: %x\n", index, count );
+                verboseLog( 3, "[RCNT %i] irq\n", index );
                 setIrq( rcnts[index].irq );
                 rcnts[index].irqState = 1;
             }
@@ -288,11 +294,10 @@ void psxRcntUpdate()
         }
         
         // VSync irq.
-        if( hSyncCount == VBlankStart[Config.PsxType] )
+        if( hSyncCount == VBlankStart )
         {
-            if( !(HW_GPU_STATUS & PSXGPU_ILACE) )
-                HW_GPU_STATUS |= PSXGPU_LCF;
-
+            HW_GPU_STATUS &= ~PSXGPU_LCF;
+            GPU_vBlank( 1, 0 );
             setIrq( 0x01 );
 
             EmuUpdate();
@@ -305,14 +310,15 @@ void psxRcntUpdate()
             hSyncCount = 0;
             frame_counter++;
 
-            HW_GPU_STATUS &= ~PSXGPU_LCF;
-            if( HW_GPU_STATUS & PSXGPU_ILACE )
+            gpuSyncPluginSR();
+            if( (HW_GPU_STATUS & PSXGPU_ILACE_BITS) == PSXGPU_ILACE_BITS )
                 HW_GPU_STATUS |= frame_counter << 31;
+            GPU_vBlank( 0, HW_GPU_STATUS >> 31 );
         }
 
         // Schedule next call, in hsyncs
         hsync_steps = SpuUpdInterval[Config.PsxType] - spuSyncCount;
-        next_vsync = VBlankStart[Config.PsxType] - hSyncCount; // ok to overflow
+        next_vsync = VBlankStart - hSyncCount; // ok to overflow
         next_lace = HSyncTotal[Config.PsxType] - hSyncCount;
         if( next_vsync && next_vsync < hsync_steps )
             hsync_steps = next_vsync;