ddbaf678 |
1 | |
2 | /* |
3 | * q: Why bother with GPU stuff in a plugin-based emu core? |
4 | * a: mostly because of busy bits, we have all the needed timing info |
5 | * that GPU plugin doesn't. |
6 | */ |
7 | |
8 | #define PSXGPU_LCF (1<<31) |
9 | #define PSXGPU_nBUSY (1<<26) |
10 | #define PSXGPU_ILACE (1<<22) |
11 | |
12 | #define HW_GPU_STATUS psxHu32ref(0x1814) |
13 | |
14 | // TODO: handle com too |
15 | #define PSXGPU_TIMING_BITS (PSXGPU_LCF | PSXGPU_nBUSY) |
16 | |
17 | #define gpuSyncPluginSR() { \ |
18 | HW_GPU_STATUS &= PSXGPU_TIMING_BITS; \ |
19 | HW_GPU_STATUS |= GPU_readStatus() & ~PSXGPU_TIMING_BITS; \ |
20 | } |