Implemented initial set of instructions and ignored functions

recomp.h

@@ -0,0 +1,94 @@
+#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