gpulib: trust game's centering based on a database

[pcsx_rearmed.git] / libpcsxcore / psxhw.c

diff --git a/libpcsxcore/psxhw.c b/libpcsxcore/psxhw.c
index 4811f99..b8ca199 100644 (file)
--- a/libpcsxcore/psxhw.c
+++ b/libpcsxcore/psxhw.c
@@ -42,7 +42,7 @@ void psxHwReset() {
        cdrReset();
        psxRcntInit();
        HW_GPU_STATUS = SWAP32(0x10802000);
-       psxHwReadGpuSRptr = Config.hacks.gpu_busy_hack
+       psxHwReadGpuSRptr = Config.hacks.gpu_busy
                ? psxHwReadGpuSRbusyHack : psxHwReadGpuSR;
 }
 
@@ -85,8 +85,13 @@ void psxHwWriteDmaIcr32(u32 value)
 
 void psxHwWriteGpuSR(u32 value)
 {
+       u32 old_sr = HW_GPU_STATUS, new_sr;
        GPU_writeStatus(value);
        gpuSyncPluginSR();
+       new_sr = HW_GPU_STATUS;
+       // "The Next Tetris" seems to rely on the field order after enable
+       if ((old_sr ^ new_sr) & new_sr & SWAP32(PSXGPU_ILACE))
+               frame_counter |= 1;
 }
 
 u32 psxHwReadGpuSR(void)