gdb/i860-opcode.h

   1 /* Intel i860 opcode structures for GDB, the GNU debugger.
   2    Copyright status of this module is unclear!!!
   3    Copyright (C) 1992 Free Software Foundation, Inc.
   4    SVR4 changes Contributed by Peggy Fieland (pfieland@stratus.com)
   5
   6 GDB is distributed in the hope that it will be useful, but WITHOUT ANY
   7 WARRANTY.  No author or distributor accepts responsibility to anyone
   8 for the consequences of using it or for whether it serves any
   9 particular purpose or works at all, unless he says so in writing.
  10 Refer to the GDB General Public License for full details.
  11
  12 Everyone is granted permission to copy, modify and redistribute GDB,
  13 but only under the conditions described in the GDB General Public
  14 License.  A copy of this license is supposed to have been given to you
  15 along with GDB so you can know your rights and responsibilities.  It
  16 should be in a file named COPYING.  Among other things, the copyright
  17 notice and this notice must be preserved on all copies.
  18
  19 In other words, go ahead and share GDB, but don't try to stop
  20 anyone else from sharing it farther.  Help stamp out software hoarding!
  21 */
  22
  23 #ifdef BIG_ENDIAN
  24 struct gen_fmt
  25 {
  26   unsigned op1 : 6;
  27   unsigned src2 : 5;
  28   unsigned dest : 5;
  29   unsigned src1 : 5;
  30   unsigned offset : 11;
  31 };
  32
  33 struct geni_fmt
  34 {
  35   unsigned op1 : 6;
  36   unsigned src2 : 5;
  37   unsigned dest : 5;
  38   unsigned offset : 16;
  39 };
  40
  41 struct esc_fmt
  42 {
  43   unsigned op1 : 6;
  44   unsigned res1 : 10;
  45   unsigned src1 : 5;
  46   unsigned res2 : 6;
  47   unsigned op2 : 5;
  48 };
  49 struct ctrl_fmt
  50 {
  51   unsigned op1 : 6;
  52   unsigned int offset : 26;
  53 };
  54
  55 struct fp_fmt
  56 {
  57   unsigned op1 : 6;
  58   unsigned src2 : 5;
  59   unsigned dest : 5;
  60   unsigned src1 : 5;
  61   unsigned p : 1;
  62   unsigned d : 1;
  63   unsigned s : 1;
  64   unsigned r : 1;
  65   unsigned op2 : 7;
  66 };
  67
  68 union insn_fmt
  69 {
  70   struct gen_fmt gen;
  71   struct geni_fmt geni;
  72   struct esc_fmt esc;
  73   struct ctrl_fmt ctrl;
  74   struct fp_fmt fp;
  75   long int_val;
  76 };
  77 #else
  78 struct gen_fmt
  79 {
  80   unsigned offset : 11;
  81   unsigned src1 : 5;
  82   unsigned dest : 5;
  83   unsigned src2 : 5;
  84   unsigned op1 : 6;
  85 };
  86
  87 struct geni_fmt
  88 {
  89   unsigned offset : 16;
  90   unsigned dest : 5;
  91   unsigned src2 : 5;
  92   unsigned op1 : 6;
  93 };
  94
  95 struct esc_fmt
  96 {
  97   unsigned op2 : 5;
  98   unsigned res2 : 6;
  99   unsigned src1 : 5;
 100   unsigned res1 : 10;
 101   unsigned op1 : 6;
 102 };
 103 struct ctrl_fmt
 104 {
 105   unsigned int offset : 26;
 106   unsigned op1 : 6;
 107 };
 108
 109 struct fp_fmt
 110 {
 111   unsigned op2 : 7;
 112   unsigned r : 1;
 113   unsigned s : 1;
 114   unsigned d : 1;
 115   unsigned p : 1;
 116   unsigned src1 : 5;
 117   unsigned dest : 5;
 118   unsigned src2 : 5;
 119   unsigned op1 : 6;
 120 };
 121
 122 union insn_fmt
 123 {
 124   struct gen_fmt gen;
 125   struct geni_fmt geni;
 126   struct esc_fmt esc;
 127   struct ctrl_fmt ctrl;
 128   struct fp_fmt fp;
 129   long int_val;
 130 };
 131 #endif
 132
 133 typedef enum
 134 {
 135   Error, not_branch, uncond, uncond_d, cond, cond_d
 136 } branch_type;
 137
 138