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https://github.com/libretro/beetle-psx-libretro.git
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138 lines
4.3 KiB
C++
138 lines
4.3 KiB
C++
#ifndef __MDFN_PSX_PSX_H
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#define __MDFN_PSX_PSX_H
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#include <stdint.h>
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#include "../masmem.h"
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#include "../mednafen-types.h"
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#include "../video/surface.h"
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// Comment out these 2 defines for extra speeeeed.
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#define PSX_DBGPRINT_ENABLE 1
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#define PSX_EVENT_SYSTEM_CHECKS 1
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// It's highly unlikely the user will want these if they're intentionally compiling without the debugger.
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#ifndef WANT_DEBUGGER
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#undef PSX_DBGPRINT_ENABLE
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#undef PSX_EVENT_SYSTEM_CHECKS
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#endif
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#define PSX_DBG_ERROR 0 // Emulator-level error.
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#define PSX_DBG_WARNING 1 // Warning about game doing questionable things/hitting stuff that might not be emulated correctly.
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#define PSX_DBG_BIOS_PRINT 2 // BIOS printf/putchar output.
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#define PSX_DBG_SPARSE 3 // Sparse(relatively) information debug messages(CDC commands).
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#define PSX_DBG_FLOOD 4 // Heavy informational debug messages(GPU commands; TODO).
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#if PSX_DBGPRINT_ENABLE
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void PSX_DBG(unsigned level, const char *format, ...);
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#define PSX_WARNING(format, ...) { PSX_DBG(PSX_DBG_WARNING, format "\n", ## __VA_ARGS__); }
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#define PSX_DBGINFO(format, ...) { }
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#else
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static void PSX_DBG(unsigned level, const char* format, ...) { }
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static void PSX_WARNING(const char* format, ...) { }
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static void PSX_DBGINFO(const char* format, ...) { }
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#endif
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typedef int32_t pscpu_timestamp_t;
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bool MDFN_FASTCALL PSX_EventHandler(const int32_t timestamp);
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void MDFN_FASTCALL PSX_MemWrite8(int32_t timestamp, uint32_t A, uint32_t V);
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void MDFN_FASTCALL PSX_MemWrite16(int32_t timestamp, uint32_t A, uint32_t V);
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void MDFN_FASTCALL PSX_MemWrite24(int32_t timestamp, uint32_t A, uint32_t V);
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void MDFN_FASTCALL PSX_MemWrite32(int32_t timestamp, uint32_t A, uint32_t V);
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uint8_t MDFN_FASTCALL PSX_MemRead8(int32_t ×tamp, uint32_t A);
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uint16_t MDFN_FASTCALL PSX_MemRead16(int32_t ×tamp, uint32_t A);
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uint32_t MDFN_FASTCALL PSX_MemRead24(int32_t ×tamp, uint32_t A);
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uint32_t MDFN_FASTCALL PSX_MemRead32(int32_t ×tamp, uint32_t A);
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uint8_t PSX_MemPeek8(uint32_t A);
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uint16_t PSX_MemPeek16(uint32_t A);
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uint32_t PSX_MemPeek32(uint32_t A);
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// Should write to WO-locations if possible
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void PSX_MemPoke8(uint32_t A, uint8_t V);
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void PSX_MemPoke16(uint32_t A, uint16_t V);
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void PSX_MemPoke32(uint32_t A, uint32_t V);
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void PSX_RequestMLExit(void);
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void ForceEventUpdates(const int32_t timestamp);
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enum
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{
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PSX_EVENT__SYNFIRST = 0,
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PSX_EVENT_GPU,
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PSX_EVENT_CDC,
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//PSX_EVENT_SPU,
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PSX_EVENT_TIMER,
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PSX_EVENT_DMA,
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PSX_EVENT_FIO,
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PSX_EVENT__SYNLAST,
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PSX_EVENT__COUNT
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};
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#define PSX_EVENT_MAXTS 0x20000000
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void PSX_SetEventNT(const int type, const int32_t next_timestamp);
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void PSX_SetDMACycleSteal(unsigned stealage);
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// PSX_GPULineHook modified to take surface pitch (in pixels) and upscale factor for software renderer internal upscaling
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void PSX_GPULineHook(const int32_t timestamp, const int32_t line_timestamp, bool vsync, uint32_t *pixels, const MDFN_PixelFormat* const format, const unsigned width, const unsigned pix_clock_offset, const unsigned pix_clock, const unsigned pix_clock_divider, const unsigned surf_pitchinpix, const unsigned upscale_factor);
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uint32_t PSX_GetRandU32(uint32_t mina, uint32_t maxa);
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#include "dis.h"
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#include "cpu.h"
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#include "irq.h"
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#include "gpu.h"
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#include "dma.h"
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#include "debug.h"
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class PS_CDC;
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class PS_SPU;
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extern PS_CPU *PSX_CPU;
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extern PS_CDC *PSX_CDC;
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extern PS_SPU *PSX_SPU;
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extern MultiAccessSizeMem<512 * 1024, uint32, false> *BIOSROM;
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extern MultiAccessSizeMem<2048 * 1024, uint32_t, false> *MainRAM;
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extern MultiAccessSizeMem<1024, uint32_t, false> *ScratchRAM;
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#ifdef HAVE_LIGHTREC
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enum DYNAREC {DYNAREC_DISABLED, DYNAREC_EXECUTE, DYNAREC_EXECUTE_ONE, DYNAREC_RUN_INTERPRETER};
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extern enum DYNAREC psx_dynarec;
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#endif
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#define OVERCLOCK_SHIFT 8
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extern int32_t psx_overclock_factor;
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static INLINE void overclock_device_to_cpu(int32_t &clock) {
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if (psx_overclock_factor) {
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int64_t n = clock;
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n = (n * psx_overclock_factor) + (1 << (OVERCLOCK_SHIFT)) - 1;
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n >>= OVERCLOCK_SHIFT;
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clock = n;
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}
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}
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static INLINE void overclock_cpu_to_device(int32_t &clock) {
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if (psx_overclock_factor) {
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int64_t n = clock;
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n = (n << OVERCLOCK_SHIFT) + (psx_overclock_factor - 1);
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n /= psx_overclock_factor;
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clock = n;
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}
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}
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extern unsigned psx_gpu_overclock_shift;
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#endif
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