rework gpu busy timing

[pcsx_rearmed.git] / libpcsxcore / psxcounters.c

diff --git a/libpcsxcore/psxcounters.c b/libpcsxcore/psxcounters.c
index 02191c7..f7491b3 100644 (file)
--- a/libpcsxcore/psxcounters.c
+++ b/libpcsxcore/psxcounters.c
@@ -22,6 +22,7 @@
  */
 
 #include "psxcounters.h"
+#include "psxevents.h"
 #include "gpu.h"
 //#include "debug.h"
 #define DebugVSync()
@@ -232,8 +233,7 @@ void psxRcntSet()
         }
     }
 
-    psxRegs.interrupt |= (1 << PSXINT_RCNT);
-    new_dyna_set_event(PSXINT_RCNT, psxNextCounter);
+    set_event(PSXINT_RCNT, psxNextCounter);
 }
 
 /******************************************************************************/
@@ -397,6 +397,8 @@ void psxRcntUpdate()
             }
             HW_GPU_STATUS = SWAP32(status);
             GPU_vBlank(0, field);
+            if ((s32)(psxRegs.gpuIdleAfter - psxRegs.cycle) < 0)
+                psxRegs.gpuIdleAfter = psxRegs.cycle - 1; // prevent overflow
 
             if ((rcnts[0].mode & 7) == (RcSyncModeEnable | Rc01UnblankReset) ||
                 (rcnts[0].mode & 7) == (RcSyncModeEnable | Rc01UnblankReset2))