mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-28 10:59:16 -04:00
Matthew Stanley
a1165d51b7
Full recompilation pipeline working: - Recompiler emits 799 functions (46k instructions) from SCPH1001.BIN - Tail-call trampoline in dispatch loop prevents stack overflow - Timer registers (3 counters, mode, target) implemented - Interrupt check at labels + dispatch boundaries with vblank scheduling - SYSCALL 1/2/3 (Enter/ExitCriticalSection, ReturnFromException) handled - EPC correctly set from SYSCALL instruction address BIOS boot reaches first GPU hardware access: UNIMPLEMENTED MMIO READ32 (GPUSTAT) @ 0x1F801814 Phase 3 (Sony logo) starts here: GPU, DMA, display pipeline. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
53 lines
2.0 KiB
C
53 lines
2.0 KiB
C
/* ============================================================================
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* cpu_state.h — Phase 2 runtime version
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* ----------------------------------------------------------------------------
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* This is the RUNTIME version of the CPUState header. It has the same struct
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* layout as generated/cpu_state.h (Phase 1a compile-only artifact) but is
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* intended to be linked into a runnable binary.
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*
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* The generated C files (SCPH1001_full.c, SCPH1001_dispatch.c) include
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* "cpu_state.h" and the build uses -I runtime/include so they find this file.
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* ========================================================================== */
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#ifndef PSXRECOMP_V4_CPU_STATE_H
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#define PSXRECOMP_V4_CPU_STATE_H
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct CPUState {
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uint32_t gpr[32]; /* $0..$31; gpr[0] is hardwired zero, never written */
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uint32_t pc; /* program counter */
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uint32_t hi, lo; /* mult/div result registers */
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uint32_t cop0[32]; /* COP0 system control registers (SR, Cause, EPC, ...) */
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/* Memory access function pointers -- wired at init to psx_read/psx_write. */
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uint32_t (*read_word)(uint32_t addr);
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void (*write_word)(uint32_t addr, uint32_t value);
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uint16_t (*read_half)(uint32_t addr);
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void (*write_half)(uint32_t addr, uint16_t value);
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uint8_t (*read_byte)(uint32_t addr);
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void (*write_byte)(uint32_t addr, uint8_t value);
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} CPUState;
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/* Trap trampolines — defined in runtime/src/traps.c */
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extern void psx_syscall(CPUState* cpu, uint32_t code);
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extern void psx_arith_overflow(CPUState* cpu);
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extern void psx_unaligned_access(CPUState* cpu, uint32_t addr, uint32_t pc);
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extern void psx_break(CPUState* cpu, uint32_t code, uint32_t pc);
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/* Dispatch — defined in generated/SCPH1001_dispatch.c */
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extern void psx_dispatch(CPUState* cpu, uint32_t target_addr);
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/* Unknown dispatch — defined in runtime/src/traps.c */
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extern void psx_unknown_dispatch(CPUState* cpu, uint32_t addr, uint32_t phys);
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#ifdef __cplusplus
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}
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#endif
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#endif /* PSXRECOMP_V4_CPU_STATE_H */
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