gdb/sparc-opcode.h

   1 /* Sparc opcde list for GDB, the GNU debugger.
   2    Copyright (C) 1986, 1987 Free Software Foundation, Inc.
   3    Contributed by Michael Tiemann (tiemann@mcc.com)
   4
   5 GDB is distributed in the hope that it will be useful, but WITHOUT ANY
   6 WARRANTY.  No author or distributor accepts responsibility to anyone
   7 for the consequences of using it or for whether it serves any
   8 particular purpose or works at all, unless he says so in writing.
   9 Refer to the GDB General Public License for full details.
  10
  11 Everyone is granted permission to copy, modify and redistribute GDB,
  12 but only under the conditions described in the GDB General Public
  13 License.  A copy of this license is supposed to have been given to you
  14 along with GDB so you can know your rights and responsibilities.  It
  15 should be in a file named COPYING.  Among other things, the copyright
  16 notice and this notice must be preserved on all copies.
  17
  18 In other words, go ahead and share GDB, but don't try to stop
  19 anyone else from sharing it farther.  Help stamp out software hoarding!
  20 */
  21
  22 struct op1_fmt
  23 {
  24   unsigned op1 : 2;
  25   unsigned dummy : 30;
  26 };
  27
  28 struct op2_fmt
  29 {
  30   unsigned dummy1 : 7;
  31   unsigned op2 : 3;
  32   unsigned dummy2 : 22;
  33 };
  34
  35 struct op3_fmt
  36 {
  37   unsigned dummy1 : 7;
  38   unsigned op3 : 6;
  39   unsigned dummy2 : 19;
  40 };
  41
  42 struct call_fmt
  43 {
  44   unsigned op : 2;
  45   unsigned disp : 30;
  46 };
  47
  48 struct sethi_fmt
  49 {
  50   unsigned op : 2;
  51   unsigned rd : 5;
  52   unsigned op2 : 3;
  53   unsigned imm : 22;
  54 };
  55
  56 struct branch_fmt
  57 {
  58   unsigned op : 2;
  59   unsigned a : 1;
  60   unsigned cond : 4;
  61   unsigned op2 : 3;
  62   unsigned disp : 22;           /* this should really be signed.  */
  63 };
  64
  65 struct ldst_fmt
  66 {
  67   unsigned op : 2;
  68   unsigned rd : 5;
  69   unsigned op3 : 6;
  70   unsigned rs1 : 5;
  71   unsigned i : 1;
  72   unsigned asi : 8;
  73   unsigned rs2 : 5;
  74 };
  75
  76 struct arith_imm_fmt
  77 {
  78   unsigned op : 2;
  79   unsigned rd : 5;
  80   unsigned op3 : 6;
  81   unsigned rs1 : 5;
  82   unsigned i : 1;
  83   int simm : 13;                /* Hopefully signed, but . . . */
  84 };
  85
  86 struct arith_fmt
  87 {
  88   unsigned op : 2;
  89   unsigned rd : 5;
  90   unsigned op3 : 6;
  91   unsigned rs1 : 5;
  92   unsigned i : 1;
  93   unsigned opf : 8;
  94   unsigned rs2 : 5;
  95 };
  96
  97 union insn_fmt
  98 {
  99   struct op1_fmt op1;
 100   struct op2_fmt op2;
 101   struct op3_fmt op3;
 102   struct call_fmt call;
 103   struct sethi_fmt sethi;
 104   struct branch_fmt branch;
 105   struct ldst_fmt ldst;
 106   struct arith_imm_fmt arith_imm;
 107   struct arith_fmt arith;
 108   int intval;
 109   float floatval;               /* ?? */
 110 };
 111
 112 typedef enum
 113 {
 114   Error, not_branch, bicc, bicca, ba, baa, ticc, ta,
 115 } branch_type;
 116