1 /* Pcsx - Pc Psx Emulator 2 * Copyright (C) 1999-2016 Pcsx Team 3 * 4 * This program is free software; you can redistribute it and/or modify 5 * it under the terms of the GNU General Public License as published by 6 * the Free Software Foundation; either version 2 of the License, or 7 * (at your option) any later version. 8 * 9 * This program is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, see <http://www.gnu.org/licenses>. 16 */ 17 18 /* 19 * q: Why bother with GPU stuff in a plugin-based emu core? 20 * a: mostly because of busy bits, we have all the needed timing info 21 * that GPU plugin doesn't. 22 */ 23 24 #ifndef __GPU_H__ 25 #define __GPU_H__ 26 27 #define PSXGPU_LCF (1<<31) 28 #define PSXGPU_nBUSY (1<<26) 29 #define PSXGPU_ILACE (1<<22) 30 #define PSXGPU_DHEIGHT (1<<19) 31 32 // both must be set for interlace to work 33 #define PSXGPU_ILACE_BITS (PSXGPU_ILACE | PSXGPU_DHEIGHT) 34 35 #define HW_GPU_STATUS psxHu32ref(0x1814) 36 37 // TODO: handle com too 38 #define PSXGPU_TIMING_BITS (PSXGPU_LCF | PSXGPU_nBUSY) 39 40 #define gpuSyncPluginSR() { \ 41 HW_GPU_STATUS &= PSXGPU_TIMING_BITS; \ 42 HW_GPU_STATUS |= GPU_readStatus() & ~PSXGPU_TIMING_BITS; \ 43 } 44 45 #endif /* __GPU_H__ */ 46