Home | History | Annotate | Line # | Download | only in include 
      1 /* $NetBSD: sh_opcode.h,v 1.3 2002/04/28 17:10:36 uch Exp $ */
      2 
      3 typedef union {
      4 	unsigned word;
      5 
      6 #if _BYTE_ORDER == BIG_ENDIAN
      7 	struct {
      8 		unsigned op: 16;
      9 	} oType;
     10 
     11 	struct {
     12 		unsigned op1: 4;
     13 		unsigned n: 4;
     14 		unsigned op2: 8;
     15 	} nType;
     16 
     17 	struct {
     18 		unsigned op1: 4;
     19 		unsigned m: 4;
     20 		unsigned op2: 8;
     21 	} mType;
     22 
     23 	struct {
     24 		unsigned op1: 4;
     25 		unsigned n: 4;
     26 		unsigned m: 4;
     27 		unsigned op2: 4;
     28 	} nmType;
     29 
     30 	struct {
     31 		unsigned op: 8;
     32 		unsigned m: 4;
     33 		unsigned d: 4;
     34 	} mdType;
     35 
     36 	struct {
     37 		unsigned op: 8;
     38 		unsigned n: 4;
     39 		unsigned d: 4;
     40 	} nd4Type;
     41 
     42 	struct {
     43 		unsigned op: 4;
     44 		unsigned n: 4;
     45 		unsigned m: 4;
     46 		unsigned d: 4;
     47 	} nmdType;
     48 
     49 	struct {
     50 		unsigned op: 8;
     51 		unsigned d: 8;
     52 	} dType;
     53 
     54 	struct {
     55 		unsigned op: 4;
     56 		unsigned d: 12;
     57 	} d12Type;
     58 
     59 	struct {
     60 		unsigned op: 4;
     61 		unsigned n: 4;
     62 		unsigned d: 8;
     63 	} nd8Type;
     64 
     65 	struct {
     66 		unsigned op: 8;
     67 		unsigned i: 8;
     68 	} iType;
     69 
     70 	struct {
     71 		unsigned op: 4;
     72 		unsigned n: 4;
     73 		unsigned i: 8;
     74 	} niType;
     75 #endif
     76 #if _BYTE_ORDER == LITTLE_ENDIAN
     77 struct {
     78 		unsigned op: 16;
     79 	} oType;
     80 
     81 	struct {
     82 		unsigned op2: 8;
     83 		unsigned n: 4;
     84 		unsigned op1: 4;
     85 	} nType;
     86 
     87 	struct {
     88 		unsigned op2: 8;
     89 		unsigned m: 4;
     90 		unsigned op1: 4;
     91 	} mType;
     92 
     93 	struct {
     94 		unsigned op2: 4;
     95 		unsigned m: 4;
     96 		unsigned n: 4;
     97 		unsigned op1: 4;
     98 	} nmType;
     99 
    100 	struct {
    101 		unsigned d: 4;
    102 		unsigned m: 4;
    103 		unsigned op: 8;
    104 	} mdType;
    105 
    106 	struct {
    107 		unsigned d: 4;
    108 		unsigned n: 4;
    109 		unsigned op: 8;
    110 	} nd4Type;
    111 
    112 	struct {
    113 		unsigned d: 4;
    114 		unsigned m: 4;
    115 		unsigned n: 4;
    116 		unsigned op: 4;
    117 	} nmdType;
    118 
    119 	struct {
    120 		unsigned d: 8;
    121 		unsigned op: 8;
    122 	} dType;
    123 
    124 	struct {
    125 		unsigned d: 12;
    126 		unsigned op: 4;
    127 	} d12Type;
    128 
    129 	struct {
    130 		unsigned d: 8;
    131 		unsigned n: 4;
    132 		unsigned op: 4;
    133 	} nd8Type;
    134 
    135 	struct {
    136 		unsigned i: 8;
    137 		unsigned op: 8;
    138 	} iType;
    139 
    140 	struct {
    141 		unsigned i: 8;
    142 		unsigned n: 4;
    143 		unsigned op: 4;
    144 	} niType;
    145 #endif
    146 } InstFmt;
    147 
    148 #define	OP_BF	0x8b
    149 #define	OP_BFS	0x8f
    150 #define	OP_BT	0x89
    151 #define	OP_BTS	0x8d
    152 #define	OP_BRA	0xa
    153 #define	OP_BSR	0xb
    154 #define	OP1_BRAF	0x0
    155 #define	OP2_BRAF	0x23
    156 #define	OP1_BSRF	0x0
    157 #define	OP2_BSRF	0x03
    158 #define	OP1_JMP	0x4
    159 #define	OP2_JMP	0x2b
    160 #define	OP1_JSR	0x4
    161 #define	OP2_JSR	0x0b
    162 #define	OP_RTS	0xffff
    163