badn64.h

#define WORD unsigned int
#define HALF unsigned short
#define BYTE unsigned char

#define sign(imm)    (HALF)(imm&0x8000)
#define op(inst)     (BYTE)(inst>>26)
#define target(inst) (WORD)((inst&0x03ffffff)<<2)
#define imm(inst)    (WORD)(inst&0xffff)
#define funct(inst)  (BYTE)(inst&0x3f)
#define rs(inst)     (BYTE)((inst&0x03e00000)>>21)
#define rt(inst)     (BYTE)((inst&0x001f0000)>>16)
#define rd(inst)     (BYTE)((inst&0xf800)>>11)
#define sa(inst)     (BYTE)((inst&0x07c0)>>6)

#define R0 0
#define AT 1
#define V0 2
#define V1 3
#define A0 4
#define A1 5
#define A2 6
#define A3 7
#define T0 8
#define T1 9
#define T2 10
#define T3 11
#define T4 12
#define T5 13
#define T6 14
#define T7 15
#define S0 16
#define S1 17
#define S2 18
#define S3 19
#define S4 20
#define S5 21
#define S6 22
#define S7 23
#define T8 24
#define T9 25
#define K0 26
#define K1 27
#define GP 28
#define SP 29
#define FP 30
#define RA 31

#define SPECIAL 0
#define REGIMM  1
#define J       2
#define JAL     3
#define BEQ     4
#define BNE     5
#define BLEZ    6
#define BGTZ    7
#define ADDI    8
#define ADDIU   9
#define SLTI    10
#define SLTIU   11
#define ANDI    12
#define ORI     13
#define XORI    14
#define LUI     15
#define COP0    16
#define COP1    17
#define COP2    18
#define BEQL    20
#define BNEL    21
#define BLEZL   22
#define BGTZL   23
#define DADDI   24
#define DADDIU  25
#define LDL     26
#define LDR     27
#define LB      32
#define LH      33
#define LWL     34
#define LW      35
#define LBU     36
#define LHU     37
#define LWR     38
#define LWU     39
#define SB      40
#define SH      41
#define SWL     42
#define SW      43
#define SDL     44
#define SDR     45
#define SWR     46
#define CACHE   47
#define LL      48
#define LWC1    49
#define LWC2    50
#define LLD     52
#define LDC1    53
#define LDC2    54
#define LD      55
#define SC      56
#define SWC1    57
#define SWC2    58
#define SCD     60
#define SDC1    61
#define SDC2    62
#define SD      63

#define SLL     0
#define SRL     2
#define SRA     3
#define SLLV    4
#define SRLV    6
#define SRAV    7
#define JR      8
#define JALR    9
#define SYSCALL 12
/*#define BREAK 13*/
#define SYNC    15
#define MFHI    16
#define MTHI    17
#define MFLO    18
#define MTLO    19
#define DSLLV   20
#define DSRLV   22
#define DSRAV   23
#define MULT    24
#define MULTU   25
#define DIV     26
#define DIVU    27
#define DMULT   28
#define DMULTU  29
#define DDIV    30
#define DDIVU   31
#define ADD     32
#define ADDU    33
#define SUB     34
#define SUBU    35
#define AND     36
#define OR      37
#define XOR     38
#define NOR     39
#define SLT     42
#define SLTU    43
#define DADD    44
#define DADDU   45
#define DSUB    46
#define DSUBU   47
#define TGE     48
#define TGEU    49
#define TLT     50
#define TLTU    51
#define TEQ     52
#define TNE     54
#define DSLL    56
#define DSRL    58
#define DSRA    59
#define DSLL32  60
#define DSRL32  62
#define DSRA32  63

#define BLTZ    0
#define BGEZ    1
#define BLTZL   2
#define BGEZL   3
#define TGEI    8
#define TGEIU   9
#define TLTI    10
#define TLTIU   11
#define TEQI    12
#define TNEI    14
#define BLTZAL  16
#define BGEZAL  17
#define BLTZALL 18
#define BGEZALL 19

#define MF      0
#define DMF     1
#define CF      2
#define MT      4
#define DMT     5
#define CT      6
#define BC      8
#define CO      16