| 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
| 2 | /* |
| 3 | * Copyright (C) 2016-2021 Paul Cercueil <paul@crapouillou.net> |
| 4 | */ |
| 5 | |
| 6 | #ifndef __LIGHTREC_H__ |
| 7 | #define __LIGHTREC_H__ |
| 8 | |
| 9 | #ifdef __cplusplus |
| 10 | #define _Bool bool |
| 11 | extern "C" { |
| 12 | #endif |
| 13 | |
| 14 | #include <stddef.h> |
| 15 | #include <stdint.h> |
| 16 | |
| 17 | #ifdef _WIN32 |
| 18 | # ifdef lightrec_EXPORTS |
| 19 | # define __api __declspec(dllexport) |
| 20 | # elif !defined(LIGHTREC_STATIC) |
| 21 | # define __api __declspec(dllimport) |
| 22 | # else |
| 23 | # define __api |
| 24 | # endif |
| 25 | #elif __GNUC__ >= 4 |
| 26 | # define __api __attribute__((visibility ("default"))) |
| 27 | #else |
| 28 | # define __api |
| 29 | #endif |
| 30 | |
| 31 | typedef uint64_t u64; |
| 32 | typedef uint32_t u32; |
| 33 | typedef uint16_t u16; |
| 34 | typedef uint8_t u8; |
| 35 | |
| 36 | typedef int64_t s64; |
| 37 | typedef int32_t s32; |
| 38 | typedef int16_t s16; |
| 39 | typedef int8_t s8; |
| 40 | |
| 41 | struct lightrec_state; |
| 42 | struct lightrec_mem_map; |
| 43 | |
| 44 | /* Exit flags */ |
| 45 | #define LIGHTREC_EXIT_NORMAL (0) |
| 46 | #define LIGHTREC_EXIT_CHECK_INTERRUPT (1 << 0) |
| 47 | #define LIGHTREC_EXIT_BREAK (1 << 1) |
| 48 | #define LIGHTREC_EXIT_SYSCALL (1 << 2) |
| 49 | #define LIGHTREC_EXIT_SEGFAULT (1 << 3) |
| 50 | #define LIGHTREC_EXIT_NOMEM (1 << 4) |
| 51 | |
| 52 | enum psx_map { |
| 53 | PSX_MAP_KERNEL_USER_RAM, |
| 54 | PSX_MAP_BIOS, |
| 55 | PSX_MAP_SCRATCH_PAD, |
| 56 | PSX_MAP_PARALLEL_PORT, |
| 57 | PSX_MAP_HW_REGISTERS, |
| 58 | PSX_MAP_CACHE_CONTROL, |
| 59 | PSX_MAP_MIRROR1, |
| 60 | PSX_MAP_MIRROR2, |
| 61 | PSX_MAP_MIRROR3, |
| 62 | PSX_MAP_CODE_BUFFER, |
| 63 | |
| 64 | PSX_MAP_UNKNOWN, |
| 65 | }; |
| 66 | |
| 67 | struct lightrec_mem_map_ops { |
| 68 | void (*sb)(struct lightrec_state *, u32 opcode, |
| 69 | void *host, u32 addr, u8 data); |
| 70 | void (*sh)(struct lightrec_state *, u32 opcode, |
| 71 | void *host, u32 addr, u16 data); |
| 72 | void (*sw)(struct lightrec_state *, u32 opcode, |
| 73 | void *host, u32 addr, u32 data); |
| 74 | u8 (*lb)(struct lightrec_state *, u32 opcode, void *host, u32 addr); |
| 75 | u16 (*lh)(struct lightrec_state *, u32 opcode, void *host, u32 addr); |
| 76 | u32 (*lw)(struct lightrec_state *, u32 opcode, void *host, u32 addr); |
| 77 | }; |
| 78 | |
| 79 | struct lightrec_mem_map { |
| 80 | u32 pc; |
| 81 | u32 length; |
| 82 | void *address; |
| 83 | const struct lightrec_mem_map_ops *ops; |
| 84 | const struct lightrec_mem_map *mirror_of; |
| 85 | }; |
| 86 | |
| 87 | struct lightrec_ops { |
| 88 | void (*cop2_op)(struct lightrec_state *state, u32 op); |
| 89 | void (*enable_ram)(struct lightrec_state *state, _Bool enable); |
| 90 | }; |
| 91 | |
| 92 | struct lightrec_registers { |
| 93 | u32 gpr[34]; |
| 94 | u32 cp0[32]; |
| 95 | u32 cp2d[32]; |
| 96 | u32 cp2c[32]; |
| 97 | }; |
| 98 | |
| 99 | __api struct lightrec_state *lightrec_init(char *argv0, |
| 100 | const struct lightrec_mem_map *map, |
| 101 | size_t nb, |
| 102 | const struct lightrec_ops *ops); |
| 103 | |
| 104 | __api void lightrec_destroy(struct lightrec_state *state); |
| 105 | |
| 106 | __api u32 lightrec_execute(struct lightrec_state *state, |
| 107 | u32 pc, u32 target_cycle); |
| 108 | __api u32 lightrec_execute_one(struct lightrec_state *state, u32 pc); |
| 109 | __api u32 lightrec_run_interpreter(struct lightrec_state *state, u32 pc); |
| 110 | |
| 111 | __api void lightrec_invalidate(struct lightrec_state *state, u32 addr, u32 len); |
| 112 | __api void lightrec_invalidate_all(struct lightrec_state *state); |
| 113 | __api void lightrec_set_invalidate_mode(struct lightrec_state *state, |
| 114 | _Bool dma_only); |
| 115 | |
| 116 | __api void lightrec_set_exit_flags(struct lightrec_state *state, u32 flags); |
| 117 | __api u32 lightrec_exit_flags(struct lightrec_state *state); |
| 118 | |
| 119 | __api struct lightrec_registers * lightrec_get_registers(struct lightrec_state *state); |
| 120 | |
| 121 | __api u32 lightrec_current_cycle_count(const struct lightrec_state *state); |
| 122 | __api void lightrec_reset_cycle_count(struct lightrec_state *state, u32 cycles); |
| 123 | __api void lightrec_set_target_cycle_count(struct lightrec_state *state, |
| 124 | u32 cycles); |
| 125 | |
| 126 | #ifdef __cplusplus |
| 127 | }; |
| 128 | #endif |
| 129 | |
| 130 | #endif /* __LIGHTREC_H__ */ |