N64Recomp/recomp.h

#ifndef __RECOMP_H__
#define __RECOMP_H__

#include <stdint.h>

#define ADD32(a, b) \
    ((uint64_t)(int32_t)((a) + (b)))

#define SUB32(a, b) \
    ((uint64_t)(int32_t)((a) - (b)))

#define MEM_D(offset, reg) \
    (*(int64_t*)((rdram) + (((reg) + (offset)) ^ 3)))

#define MEM_W(offset, reg) \
    (*(int32_t*)((rdram) + (((reg) + (offset)) ^ 3)))

#define MEM_H(offset, reg) \
    (*(int16_t*)((rdram) + (((reg) + (offset)) ^ 3)))

#define MEM_B(offset, reg) \
    (*(int8_t*)((rdram) + (((reg) + (offset)) ^ 3)))

#define MEM_HU(offset, reg) \
    (*(uint16_t*)((rdram) + (((reg) + (offset)) ^ 3)))

#define MEM_BU(offset, reg) \
    (*(uint8_t*)((rdram) + (((reg) + (offset)) ^ 3)))

#define S32(val) \
    ((int32_t)(val))
    
#define U32(val) \
    ((uint32_t)(val))

#define S64(val) \
    ((int64_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))

typedef uint64_t gpr;

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,  f2,  f4,  f6,  f8,  f10, f12, f14,
        f16, f18, f20, f22, f24, f26, f28, f30;
    uint64_t hi, lo;
} recomp_context;

#endif