sys/arch/sh3/include/sh_opcode.h

   1 /* $NetBSD: sh_opcode.h,v 1.2 2000/08/02 11:32:43 msaitoh 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