/* * q: Why bother with GPU stuff in a plugin-based emu core? * a: mostly because of busy bits, we have all the needed timing info * that GPU plugin doesn't. */ #define PSXGPU_LCF (1<<31) #define PSXGPU_nBUSY (1<<26) #define PSXGPU_ILACE (1<<22) #define PSXGPU_DHEIGHT (1<<19) // both must be set for interlace to work #define PSXGPU_ILACE_BITS (PSXGPU_ILACE | PSXGPU_DHEIGHT) #define HW_GPU_STATUS psxHu32ref(0x1814) // TODO: handle com too #define PSXGPU_TIMING_BITS (PSXGPU_LCF | PSXGPU_nBUSY) #define gpuSyncPluginSR() { \ HW_GPU_STATUS &= PSXGPU_TIMING_BITS; \ HW_GPU_STATUS |= GPU_readStatus() & ~PSXGPU_TIMING_BITS; \ }