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/* Pcsx - Pc Psx Emulator
* Copyright (C) 1999-2016 Pcsx Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses>.
*/
/*
* 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.
*/
#ifndef __GPU_H__
#define __GPU_H__
#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; \
}
#endif /* __GPU_H__ */
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