X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=libpcsxcore%2Fpsxcounters.c;h=f7491b3d53adddcca9ba1642593d6e67f3bb82fd;hb=f8896d181bd26ef6fd18af17f01c77b73ae17a68;hp=d0d45ec5c2d77b607880ea9f287406acbcaea263;hpb=7da5c7ad699ce52d0ef8361709b420751f4e42e0;p=pcsx_rearmed.git

diff --git a/libpcsxcore/psxcounters.c b/libpcsxcore/psxcounters.c
index d0d45ec5..f7491b3d 100644
--- a/libpcsxcore/psxcounters.c
+++ b/libpcsxcore/psxcounters.c
@@ -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))