mirror of
https://github.com/Mr-Wiseguy/Zelda64Recomp.git
synced 2024-07-20 21:35:12 +02:00
328 lines
9.1 KiB
C
328 lines
9.1 KiB
C
#ifndef __RECOMP_H__
|
|
#define __RECOMP_H__
|
|
|
|
#include <stdint.h>
|
|
#include <math.h>
|
|
#include <assert.h>
|
|
#include <setjmp.h>
|
|
#include <malloc.h>
|
|
|
|
#if 0 // treat GPRs as 32-bit, should be better codegen
|
|
typedef uint32_t gpr;
|
|
|
|
#define SIGNED(val) \
|
|
((int32_t)(val))
|
|
#else
|
|
typedef uint64_t gpr;
|
|
|
|
#define SIGNED(val) \
|
|
((int64_t)(val))
|
|
#endif
|
|
|
|
#define ADD32(a, b) \
|
|
((gpr)(int32_t)((a) + (b)))
|
|
|
|
#define SUB32(a, b) \
|
|
((gpr)(int32_t)((a) - (b)))
|
|
|
|
#define MEM_W(offset, reg) \
|
|
(*(int32_t*)(rdram + ((((reg) + (offset))) - 0xFFFFFFFF80000000)))
|
|
//(*(int32_t*)(rdram + ((((reg) + (offset))) & 0x3FFFFFF)))
|
|
|
|
#define MEM_H(offset, reg) \
|
|
(*(int16_t*)(rdram + ((((reg) + (offset)) ^ 2) - 0xFFFFFFFF80000000)))
|
|
//(*(int16_t*)(rdram + ((((reg) + (offset)) ^ 2) & 0x3FFFFFF)))
|
|
|
|
#define MEM_B(offset, reg) \
|
|
(*(int8_t*)(rdram + ((((reg) + (offset)) ^ 3) - 0xFFFFFFFF80000000)))
|
|
//(*(int8_t*)(rdram + ((((reg) + (offset)) ^ 3) & 0x3FFFFFF)))
|
|
|
|
#define MEM_HU(offset, reg) \
|
|
(*(uint16_t*)(rdram + ((((reg) + (offset)) ^ 2) - 0xFFFFFFFF80000000)))
|
|
//(*(uint16_t*)(rdram + ((((reg) + (offset)) ^ 2) & 0x3FFFFFF)))
|
|
|
|
#define MEM_BU(offset, reg) \
|
|
(*(uint8_t*)(rdram + ((((reg) + (offset)) ^ 3) - 0xFFFFFFFF80000000)))
|
|
//(*(uint8_t*)(rdram + ((((reg) + (offset)) ^ 3) & 0x3FFFFFF)))
|
|
|
|
#define SD(val, offset, reg) { \
|
|
*(uint32_t*)(rdram + ((((reg) + (offset) + 4)) - 0xFFFFFFFF80000000)) = (uint32_t)((gpr)(val) >> 0); \
|
|
*(uint32_t*)(rdram + ((((reg) + (offset) + 0)) - 0xFFFFFFFF80000000)) = (uint32_t)((gpr)(val) >> 32); \
|
|
}
|
|
|
|
//#define SD(val, offset, reg) { \
|
|
// *(uint32_t*)(rdram + ((((reg) + (offset) + 4)) & 0x3FFFFFF)) = (uint32_t)((val) >> 32); \
|
|
// *(uint32_t*)(rdram + ((((reg) + (offset) + 0)) & 0x3FFFFFF)) = (uint32_t)((val) >> 0); \
|
|
//}
|
|
|
|
static inline uint64_t load_doubleword(uint8_t* rdram, gpr reg, gpr offset) {
|
|
uint64_t ret = 0;
|
|
uint64_t lo = (uint64_t)(uint32_t)MEM_W(reg, offset + 4);
|
|
uint64_t hi = (uint64_t)(uint32_t)MEM_W(reg, offset + 0);
|
|
ret = (lo << 0) | (hi << 32);
|
|
return ret;
|
|
}
|
|
|
|
#define LD(offset, reg) \
|
|
load_doubleword(rdram, offset, reg)
|
|
|
|
static inline gpr do_lwl(uint8_t* rdram, gpr initial_value, gpr offset, gpr reg) {
|
|
// Calculate the overall address
|
|
gpr address = (offset + reg);
|
|
|
|
// Load the aligned word
|
|
gpr word_address = address & ~0x3;
|
|
uint32_t loaded_value = MEM_W(0, word_address);
|
|
|
|
// Mask the existing value and shift the loaded value appropriately
|
|
gpr misalignment = address & 0x3;
|
|
gpr masked_value = initial_value & ~(0xFFFFFFFFu << (misalignment * 8));
|
|
loaded_value <<= (misalignment * 8);
|
|
|
|
// Cast to int32_t to sign extend first
|
|
return (gpr)(int32_t)(masked_value | loaded_value);
|
|
}
|
|
|
|
static inline gpr do_lwr(uint8_t* rdram, gpr initial_value, gpr offset, gpr reg) {
|
|
// Calculate the overall address
|
|
gpr address = (offset + reg);
|
|
|
|
// Load the aligned word
|
|
gpr word_address = address & ~0x3;
|
|
uint32_t loaded_value = MEM_W(0, word_address);
|
|
|
|
// Mask the existing value and shift the loaded value appropriately
|
|
gpr misalignment = address & 0x3;
|
|
gpr masked_value = initial_value & ~(0xFFFFFFFFu >> (24 - misalignment * 8));
|
|
loaded_value >>= (24 - misalignment * 8);
|
|
|
|
// Cast to int32_t to sign extend first
|
|
return (gpr)(int32_t)(masked_value | loaded_value);
|
|
}
|
|
|
|
static inline void do_swl(uint8_t* rdram, gpr offset, gpr reg, gpr val) {
|
|
// Calculate the overall address
|
|
gpr address = (offset + reg);
|
|
|
|
// Get the initial value of the aligned word
|
|
gpr word_address = address & ~0x3;
|
|
uint32_t initial_value = MEM_W(0, word_address);
|
|
|
|
// Mask the initial value and shift the input value appropriately
|
|
gpr misalignment = address & 0x3;
|
|
uint32_t masked_initial_value = initial_value & ~(0xFFFFFFFFu >> (misalignment * 8));
|
|
uint32_t shifted_input_value = ((uint32_t)val) >> (misalignment * 8);
|
|
MEM_W(0, word_address) = masked_initial_value | shifted_input_value;
|
|
}
|
|
|
|
static inline void do_swr(uint8_t* rdram, gpr offset, gpr reg, gpr val) {
|
|
// Calculate the overall address
|
|
gpr address = (offset + reg);
|
|
|
|
// Get the initial value of the aligned word
|
|
gpr word_address = address & ~0x3;
|
|
uint32_t initial_value = MEM_W(0, word_address);
|
|
|
|
// Mask the initial value and shift the input value appropriately
|
|
gpr misalignment = address & 0x3;
|
|
uint32_t masked_initial_value = initial_value & ~(0xFFFFFFFFu << (24 - misalignment * 8));
|
|
uint32_t shifted_input_value = ((uint32_t)val) << (24 - misalignment * 8);
|
|
MEM_W(0, word_address) = masked_initial_value | shifted_input_value;
|
|
}
|
|
|
|
#define S32(val) \
|
|
((int32_t)(val))
|
|
|
|
#define U32(val) \
|
|
((uint32_t)(val))
|
|
|
|
#define S64(val) \
|
|
((int64_t)(val))
|
|
|
|
#define U64(val) \
|
|
((uint64_t)(val))
|
|
|
|
#define MUL_S(val1, val2) \
|
|
((val1) * (val2))
|
|
|
|
#define MUL_D(val1, val2) \
|
|
((val1) * (val2))
|
|
|
|
#define DIV_S(val1, val2) \
|
|
((val1) / (val2))
|
|
|
|
#define DIV_D(val1, val2) \
|
|
((val1) / (val2))
|
|
|
|
#define CVT_S_W(val) \
|
|
((float)((int32_t)(val)))
|
|
|
|
#define CVT_D_W(val) \
|
|
((double)((int32_t)(val)))
|
|
|
|
#define CVT_D_S(val) \
|
|
((double)(val))
|
|
|
|
#define CVT_S_D(val) \
|
|
((float)(val))
|
|
|
|
#define TRUNC_W_S(val) \
|
|
((int32_t)(val))
|
|
|
|
#define TRUNC_W_D(val) \
|
|
((int32_t)(val))
|
|
|
|
#define TRUNC_L_S(val) \
|
|
((int64_t)(val))
|
|
|
|
#define TRUNC_L_D(val) \
|
|
((int64_t)(val))
|
|
|
|
#define DEFAULT_ROUNDING_MODE 0
|
|
|
|
static inline int32_t do_cvt_w_s(float val, unsigned int rounding_mode) {
|
|
switch (rounding_mode) {
|
|
case 0: // round to nearest value
|
|
return (int32_t)lroundf(val);
|
|
case 1: // round to zero (truncate)
|
|
return (int32_t)val;
|
|
case 2: // round to positive infinity (ceil)
|
|
return (int32_t)ceilf(val);
|
|
case 3: // round to negative infinity (floor)
|
|
return (int32_t)floorf(val);
|
|
}
|
|
assert(0);
|
|
return 0;
|
|
}
|
|
|
|
#define CVT_W_S(val) \
|
|
do_cvt_w_s(val, rounding_mode)
|
|
|
|
static inline int32_t do_cvt_w_d(double val, unsigned int rounding_mode) {
|
|
switch (rounding_mode) {
|
|
case 0: // round to nearest value
|
|
return (int32_t)lround(val);
|
|
case 1: // round to zero (truncate)
|
|
return (int32_t)val;
|
|
case 2: // round to positive infinity (ceil)
|
|
return (int32_t)ceil(val);
|
|
case 3: // round to negative infinity (floor)
|
|
return (int32_t)floor(val);
|
|
}
|
|
assert(0);
|
|
return 0;
|
|
}
|
|
|
|
#define CVT_W_D(val) \
|
|
do_cvt_w_d(val, rounding_mode)
|
|
|
|
#define NAN_CHECK(val) \
|
|
assert(val == val)
|
|
|
|
//#define NAN_CHECK(val)
|
|
|
|
typedef union {
|
|
double d;
|
|
struct {
|
|
float fl;
|
|
float fh;
|
|
};
|
|
struct {
|
|
uint32_t u32l;
|
|
uint32_t u32h;
|
|
};
|
|
uint64_t u64;
|
|
} fpr;
|
|
|
|
typedef struct {
|
|
gpr r0, r1, r2, r3, r4, r5, r6, r7,
|
|
r8, r9, r10, r11, r12, r13, r14, r15,
|
|
r16, r17, r18, r19, r20, r21, r22, r23,
|
|
r24, r25, r26, r27, r28, r29, r30, r31;
|
|
fpr f0, f1, f2, f3, f4, f5, f6, f7,
|
|
f8, f9, f10, f11, f12, f13, f14, f15,
|
|
f16, f17, f18, f19, f20, f21, f22, f23,
|
|
f24, f25, f26, f27, f28, f29, f30, f31;
|
|
uint64_t hi, lo;
|
|
uint32_t* f_odd;
|
|
uint32_t status_reg;
|
|
uint8_t mips3_float_mode;
|
|
} recomp_context;
|
|
|
|
// Checks if the target is an even float register or that mips3 float mode is enabled
|
|
#define CHECK_FR(ctx, idx) \
|
|
assert(((idx) & 1) == 0 || (ctx)->mips3_float_mode)
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
void cop0_status_write(recomp_context* ctx, gpr value);
|
|
gpr cop0_status_read(recomp_context* ctx);
|
|
void switch_error(const char* func, uint32_t vram, uint32_t jtbl);
|
|
void do_break(uint32_t vram);
|
|
|
|
typedef void (recomp_func_t)(uint8_t* rdram, recomp_context* ctx);
|
|
|
|
recomp_func_t* get_function(int32_t vram);
|
|
|
|
#define LOOKUP_FUNC(val) \
|
|
get_function((int32_t)(val))
|
|
|
|
extern int32_t section_addresses[];
|
|
|
|
#define LO16(x) \
|
|
((x) & 0xFFFF)
|
|
|
|
#define HI16(x) \
|
|
(((x) >> 16) + (((x) >> 15) & 1))
|
|
|
|
#define RELOC_HI16(section_index, offset) \
|
|
HI16(section_addresses[section_index] + (offset))
|
|
|
|
#define RELOC_LO16(section_index, offset) \
|
|
LO16(section_addresses[section_index] + (offset))
|
|
|
|
// For Banjo-Tooie
|
|
void recomp_syscall_handler(uint8_t* rdram, recomp_context* ctx, int32_t instruction_vram);
|
|
|
|
// For the Mario Party games (not working)
|
|
//// This has to be in this file so it can be inlined
|
|
//struct jmp_buf_storage {
|
|
// jmp_buf buffer;
|
|
//};
|
|
//
|
|
//struct RecompJmpBuf {
|
|
// int32_t owner;
|
|
// struct jmp_buf_storage* storage;
|
|
// uint64_t magic;
|
|
//};
|
|
//
|
|
//// Randomly generated constant
|
|
//#define SETJMP_MAGIC 0xe17afdfa939a437bu
|
|
//
|
|
//int32_t osGetThreadEx(void);
|
|
//
|
|
//#define setjmp_recomp(rdram, ctx) { \
|
|
// struct RecompJmpBuf* buf = (struct RecompJmpBuf*)(&rdram[(uint64_t)ctx->r4 - 0xFFFFFFFF80000000]); \
|
|
// \
|
|
// /* Check if this jump buffer was previously set up */ \
|
|
// if (buf->magic == SETJMP_MAGIC) { \
|
|
// /* If so, free the old jmp_buf */ \
|
|
// free(buf->storage); \
|
|
// } \
|
|
// \
|
|
// buf->magic = SETJMP_MAGIC; \
|
|
// buf->owner = osGetThreadEx(); \
|
|
// buf->storage = (struct jmp_buf_storage*)calloc(1, sizeof(struct jmp_buf_storage)); \
|
|
// ctx->r2 = setjmp(buf->storage->buffer); \
|
|
//}
|
|
|
|
void pause_self(uint8_t *rdram);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|