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OpCode.h
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OpCode.h
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/*
* Project 64 - A Nintendo 64 emulator.
*
* (c) Copyright 2001 zilmar ([email protected]) and
* Jabo ([email protected]).
*
* pj64 homepage: www.pj64.net
*
* Permission to use, copy, modify and distribute Project64 in both binary and
* source form, for non-commercial purposes, is hereby granted without fee,
* providing that this license information and copyright notice appear with
* all copies and any derived work.
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event shall the authors be held liable for any damages
* arising from the use of this software.
*
* Project64 is freeware for PERSONAL USE only. Commercial users should
* seek permission of the copyright holders first. Commercial use includes
* charging money for Project64 or software derived from Project64.
*
* The copyright holders request that bug fixes and improvements to the code
* should be forwarded to them so if they want them.
*
*/
#ifndef __OpCode
#define __OpCode
#include "Types.h"
typedef struct {
union {
unsigned long Hex;
unsigned char Ascii[4];
struct {
unsigned offset : 16;
unsigned rt : 5;
unsigned rs : 5;
unsigned op : 6;
};
struct {
unsigned immediate : 16;
unsigned : 5;
unsigned base : 5;
unsigned : 6;
};
struct {
unsigned target : 26;
unsigned : 6;
};
struct {
unsigned funct : 6;
unsigned sa : 5;
unsigned rd : 5;
unsigned : 5;
unsigned : 5;
unsigned : 6;
};
struct {
unsigned : 6;
unsigned fd : 5;
unsigned fs : 5;
unsigned ft : 5;
unsigned fmt : 5;
unsigned : 6;
};
};
} OPCODE;
//R4300i OpCodes
#define R4300i_SPECIAL 0
#define R4300i_REGIMM 1
#define R4300i_J 2
#define R4300i_JAL 3
#define R4300i_BEQ 4
#define R4300i_BNE 5
#define R4300i_BLEZ 6
#define R4300i_BGTZ 7
#define R4300i_ADDI 8
#define R4300i_ADDIU 9
#define R4300i_SLTI 10
#define R4300i_SLTIU 11
#define R4300i_ANDI 12
#define R4300i_ORI 13
#define R4300i_XORI 14
#define R4300i_LUI 15
#define R4300i_CP0 16
#define R4300i_CP1 17
#define R4300i_BEQL 20
#define R4300i_BNEL 21
#define R4300i_BLEZL 22
#define R4300i_BGTZL 23
#define R4300i_DADDI 24
#define R4300i_DADDIU 25
#define R4300i_LDL 26
#define R4300i_LDR 27
#define R4300i_LB 32
#define R4300i_LH 33
#define R4300i_LWL 34
#define R4300i_LW 35
#define R4300i_LBU 36
#define R4300i_LHU 37
#define R4300i_LWR 38
#define R4300i_LWU 39
#define R4300i_SB 40
#define R4300i_SH 41
#define R4300i_SWL 42
#define R4300i_SW 43
#define R4300i_SDL 44
#define R4300i_SDR 45
#define R4300i_SWR 46
#define R4300i_CACHE 47
#define R4300i_LL 48
#define R4300i_LWC1 49
#define R4300i_LWC2 0x32
#define R4300i_LLD 0x34
#define R4300i_LDC1 53
#define R4300i_LDC2 0x36
#define R4300i_LD 55
#define R4300i_SC 0x38
#define R4300i_SWC1 57
#define R4300i_SWC2 0x3A
#define R4300i_SCD 0x3C
#define R4300i_SDC1 61
#define R4300i_SDC2 62
#define R4300i_SD 63
/* R4300i Special opcodes */
#define R4300i_SPECIAL_SLL 0
#define R4300i_SPECIAL_SRL 2
#define R4300i_SPECIAL_SRA 3
#define R4300i_SPECIAL_SLLV 4
#define R4300i_SPECIAL_SRLV 6
#define R4300i_SPECIAL_SRAV 7
#define R4300i_SPECIAL_JR 8
#define R4300i_SPECIAL_JALR 9
#define R4300i_SPECIAL_SYSCALL 12
#define R4300i_SPECIAL_BREAK 13
#define R4300i_SPECIAL_SYNC 15
#define R4300i_SPECIAL_MFHI 16
#define R4300i_SPECIAL_MTHI 17
#define R4300i_SPECIAL_MFLO 18
#define R4300i_SPECIAL_MTLO 19
#define R4300i_SPECIAL_DSLLV 20
#define R4300i_SPECIAL_DSRLV 22
#define R4300i_SPECIAL_DSRAV 23
#define R4300i_SPECIAL_MULT 24
#define R4300i_SPECIAL_MULTU 25
#define R4300i_SPECIAL_DIV 26
#define R4300i_SPECIAL_DIVU 27
#define R4300i_SPECIAL_DMULT 28
#define R4300i_SPECIAL_DMULTU 29
#define R4300i_SPECIAL_DDIV 30
#define R4300i_SPECIAL_DDIVU 31
#define R4300i_SPECIAL_ADD 32
#define R4300i_SPECIAL_ADDU 33
#define R4300i_SPECIAL_SUB 34
#define R4300i_SPECIAL_SUBU 35
#define R4300i_SPECIAL_AND 36
#define R4300i_SPECIAL_OR 37
#define R4300i_SPECIAL_XOR 38
#define R4300i_SPECIAL_NOR 39
#define R4300i_SPECIAL_SLT 42
#define R4300i_SPECIAL_SLTU 43
#define R4300i_SPECIAL_DADD 44
#define R4300i_SPECIAL_DADDU 45
#define R4300i_SPECIAL_DSUB 46
#define R4300i_SPECIAL_DSUBU 47
#define R4300i_SPECIAL_TGE 48
#define R4300i_SPECIAL_TGEU 49
#define R4300i_SPECIAL_TLT 50
#define R4300i_SPECIAL_TLTU 51
#define R4300i_SPECIAL_TEQ 52
#define R4300i_SPECIAL_TNE 54
#define R4300i_SPECIAL_DSLL 56
#define R4300i_SPECIAL_DSRL 58
#define R4300i_SPECIAL_DSRA 59
#define R4300i_SPECIAL_DSLL32 60
#define R4300i_SPECIAL_DSRL32 62
#define R4300i_SPECIAL_DSRA32 63
/* R4300i RegImm opcodes */
#define R4300i_REGIMM_BLTZ 0
#define R4300i_REGIMM_BGEZ 1
#define R4300i_REGIMM_BLTZL 2
#define R4300i_REGIMM_BGEZL 3
#define R4300i_REGIMM_TGEI 0x08
#define R4300i_REGIMM_TGEIU 0x09
#define R4300i_REGIMM_TLTI 0x0A
#define R4300i_REGIMM_TLTIU 0x0B
#define R4300i_REGIMM_TEQI 0x0C
#define R4300i_REGIMM_TNEI 0x0E
#define R4300i_REGIMM_BLTZAL 0x10
#define R4300i_REGIMM_BGEZAL 17
#define R4300i_REGIMM_BLTZALL 0x12
#define R4300i_REGIMM_BGEZALL 0x13
/* R4300i COP0 opcodes */
#define R4300i_COP0_MF 0
#define R4300i_COP0_MT 4
/* R4300i COP0 CO opcodes */
#define R4300i_COP0_CO_TLBR 1
#define R4300i_COP0_CO_TLBWI 2
#define R4300i_COP0_CO_TLBWR 6
#define R4300i_COP0_CO_TLBP 8
#define R4300i_COP0_CO_ERET 24
/* R4300i COP1 opcodes */
#define R4300i_COP1_MF 0
#define R4300i_COP1_DMF 1
#define R4300i_COP1_CF 2
#define R4300i_COP1_MT 4
#define R4300i_COP1_DMT 5
#define R4300i_COP1_CT 6
#define R4300i_COP1_BC 8
#define R4300i_COP1_S 16
#define R4300i_COP1_D 17
#define R4300i_COP1_W 20
#define R4300i_COP1_L 21
/* R4300i COP1 BC opcodes */
#define R4300i_COP1_BC_BCF 0
#define R4300i_COP1_BC_BCT 1
#define R4300i_COP1_BC_BCFL 2
#define R4300i_COP1_BC_BCTL 3
#define R4300i_COP1_FUNCT_ADD 0
#define R4300i_COP1_FUNCT_SUB 1
#define R4300i_COP1_FUNCT_MUL 2
#define R4300i_COP1_FUNCT_DIV 3
#define R4300i_COP1_FUNCT_SQRT 4
#define R4300i_COP1_FUNCT_ABS 5
#define R4300i_COP1_FUNCT_MOV 6
#define R4300i_COP1_FUNCT_NEG 7
#define R4300i_COP1_FUNCT_ROUND_L 8
#define R4300i_COP1_FUNCT_TRUNC_L 9
#define R4300i_COP1_FUNCT_CEIL_L 10
#define R4300i_COP1_FUNCT_FLOOR_L 11
#define R4300i_COP1_FUNCT_ROUND_W 12
#define R4300i_COP1_FUNCT_TRUNC_W 13
#define R4300i_COP1_FUNCT_CEIL_W 14
#define R4300i_COP1_FUNCT_FLOOR_W 15
#define R4300i_COP1_FUNCT_CVT_S 32
#define R4300i_COP1_FUNCT_CVT_D 33
#define R4300i_COP1_FUNCT_CVT_W 36
#define R4300i_COP1_FUNCT_CVT_L 37
#define R4300i_COP1_FUNCT_C_F 48
#define R4300i_COP1_FUNCT_C_UN 49
#define R4300i_COP1_FUNCT_C_EQ 50
#define R4300i_COP1_FUNCT_C_UEQ 51
#define R4300i_COP1_FUNCT_C_OLT 52
#define R4300i_COP1_FUNCT_C_ULT 53
#define R4300i_COP1_FUNCT_C_OLE 54
#define R4300i_COP1_FUNCT_C_ULE 55
#define R4300i_COP1_FUNCT_C_SF 56
#define R4300i_COP1_FUNCT_C_NGLE 57
#define R4300i_COP1_FUNCT_C_SEQ 58
#define R4300i_COP1_FUNCT_C_NGL 59
#define R4300i_COP1_FUNCT_C_LT 60
#define R4300i_COP1_FUNCT_C_NGE 61
#define R4300i_COP1_FUNCT_C_LE 62
#define R4300i_COP1_FUNCT_C_NGT 63
#endif