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  1. /* PDP-11 opcde list.
  2.    Copyright 2001, 2002, 2010 Free Software Foundation, Inc.
  3.  
  4.    This file is part of GDB and GAS.
  5.  
  6.    GDB and GAS are free software; you can redistribute it and/or modify
  7.    it under the terms of the GNU General Public License as published by
  8.    the Free Software Foundation; either version 3, or (at your option)
  9.    any later version.
  10.  
  11.    GDB and GAS are distributed in the hope that it will be useful,
  12.    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14.    GNU General Public License for more details.
  15.  
  16.    You should have received a copy of the GNU General Public License
  17.    along with GDB or GAS; see the file COPYING3.  If not, write to
  18.    the Free Software Foundation, 51 Franklin Street - Fifth Floor,
  19.    Boston, MA 02110-1301, USA.  */
  20.  
  21. /* PDP-11 opcode types.  */
  22.  
  23. #define PDP11_OPCODE_NO_OPS      0
  24. #define PDP11_OPCODE_REG         1      /* register */
  25. #define PDP11_OPCODE_OP          2      /* generic operand */
  26. #define PDP11_OPCODE_REG_OP      3      /* register and generic operand */
  27. #define PDP11_OPCODE_REG_OP_REV  4      /* register and generic operand,
  28.                                            reversed syntax */
  29. #define PDP11_OPCODE_AC_FOP      5      /* fpu accumulator and generic float
  30.                                            operand */
  31. #define PDP11_OPCODE_OP_OP       6      /* two generic operands */
  32. #define PDP11_OPCODE_DISPL       7      /* pc-relative displacement */
  33. #define PDP11_OPCODE_REG_DISPL   8      /* redister and pc-relative
  34.                                            displacement */
  35. #define PDP11_OPCODE_IMM8        9      /* 8-bit immediate */
  36. #define PDP11_OPCODE_IMM6       10      /* 6-bit immediate */
  37. #define PDP11_OPCODE_IMM3       11      /* 3-bit immediate */
  38. #define PDP11_OPCODE_ILLEGAL    12      /* illegal instruction */
  39. #define PDP11_OPCODE_FOP_AC     13      /* generic float argument, then fpu
  40.                                            accumulator */
  41. #define PDP11_OPCODE_FOP        14      /* generic float operand */
  42. #define PDP11_OPCODE_AC_OP      15      /* fpu accumulator and generic int
  43.                                            operand */
  44. #define PDP11_OPCODE_OP_AC      16      /* generic int argument, then fpu
  45.                                            accumulator */
  46.  
  47. /*
  48.  * PDP-11 instruction set extensions.
  49.  *
  50.  * Please keep the numbers low, as they are used as indices into
  51.  * an array.
  52.  */
  53.  
  54. #define PDP11_NONE       0      /* not in instruction set */
  55. #define PDP11_BASIC      1      /* basic instruction set (11/20 etc) */
  56. #define PDP11_CSM        2      /* commercial instruction set */
  57. #define PDP11_CIS        3      /* commercial instruction set */
  58. #define PDP11_EIS        4      /* extended instruction set (11/45 etc) */
  59. #define PDP11_FIS        5      /* KEV11 floating-point instructions */
  60. #define PDP11_FPP        6      /* FP-11 floating-point instructions */
  61. #define PDP11_LEIS       7      /* limited extended instruction set
  62.                                    (11/40 etc) */
  63. #define PDP11_MFPT       8      /* move from processor type */
  64. #define PDP11_MPROC      9      /* multiprocessor instructions: tstset,
  65.                                    wrtlck */
  66. #define PDP11_MXPS      10      /* move from/to processor status */
  67. #define PDP11_SPL       11      /* set priority level */
  68. #define PDP11_UCODE     12      /* microcode instructions: ldub, med, xfc */
  69. #define PDP11_EXT_NUM   13      /* total number of extension types */
  70.  
  71. struct pdp11_opcode
  72. {
  73.   const char *name;
  74.   int opcode;
  75.   int mask;
  76.   int type;
  77.   int extension;
  78. };
  79.  
  80. extern const struct pdp11_opcode pdp11_opcodes[];
  81. extern const struct pdp11_opcode pdp11_aliases[];
  82. extern const int pdp11_num_opcodes, pdp11_num_aliases;
  83.  
  84. /* end of pdp11.h */
  85.