mirror of
https://github.com/RetroPortingToolKit/psxrecomp
synced 2026-10-26 18:25:35 -04:00
Matthew Stanley
adaea3d8bf
Audited psxrecomp-v3 and psxrecomp-v2 hardware simulation files. Carried forward only pure hardware simulation with zero HLE/BIOS contamination. Each file was read in full and checked for: - event_deliver / bios_ / interpreter_ references (none found) - printf/fprintf (removed from GTE, none in others) - stubs (return 0, TODO, FIXME) (none found) - v3-specific state dependencies (removed psx_runtime.h, automation.h) Added files: - gte.cpp/h: COP2 coprocessor (876 lines, all GTE commands) - gpu_sw_renderer.c/h: Software rasterizer with texture support (723 lines) - crc32.c/h: CRC32 utility (27 lines) - iso_reader.cpp/h + iso_reader_c.cpp: ISO 9660 reader (490 lines) Modified: - cpu_state.h: Added gte_data[32] and gte_ctrl[32] arrays - CMakeLists.txt: Added new source files Explicitly rejected (per CLAUDE.md rule 7): - bios.c, events.c, threads.c, interpreter.c (HLE/kernel state) - bios_trace.c, func_logger.c, main_runner.cpp (interpreter era) - cdrom.c (has event_deliver + hard-coded RAM writes, needs surgery) - spu.cpp from v2 (WinMM-only, needs SDL port) Build verified: clean compile and link. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
62 lines
2.5 KiB
C
62 lines
2.5 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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uint32_t gte_data[32]; /* COP2 (GTE) data registers */
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uint32_t gte_ctrl[32]; /* COP2 (GTE) control registers */
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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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/* GTE (COP2) — defined in runtime/src/gte.cpp */
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extern void gte_execute(CPUState* cpu, uint32_t cmd);
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extern uint32_t gte_read_data(CPUState* cpu, uint8_t reg);
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extern uint32_t gte_read_ctrl(CPUState* cpu, uint8_t reg);
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extern void gte_write_data(CPUState* cpu, uint8_t reg, uint32_t val);
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extern void gte_write_ctrl(CPUState* cpu, uint8_t reg, uint32_t val);
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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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