sdcc/support/sdbinutils/include/opcode/pdp11.h

   1 /* PDP-11 opcde list.
   2    Copyright (C) 2001-2022 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 */