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/* PDP-11 opcde list.

   Copyright 2001 Free Software Foundation, Inc.

This file is part of GDB and GAS.

GDB and GAS are free software; you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation; either version 1, or (at your option)

any later version.

GDB and GAS are distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with GDB or GAS; see the file COPYING.  If not, write to

the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

/*

 * PDP-11 opcode types.

 */

#define PDP11_OPCODE_NO_OPS      0

#define PDP11_OPCODE_REG         1      /* register */

#define PDP11_OPCODE_OP          2      /* generic operand */

#define PDP11_OPCODE_REG_OP      3      /* register and generic operand */

#define PDP11_OPCODE_REG_OP_REV  4      /* register and generic operand,

                                           reversed syntax */

#define PDP11_OPCODE_AC_OP       5      /* fpu accumulator and generic

                                           operand */

#define PDP11_OPCODE_OP_OP       6      /* two generic operands */

#define PDP11_OPCODE_DISPL       7      /* pc-relative displacement */

#define PDP11_OPCODE_REG_DISPL   8      /* redister and pc-relative

                                           displacement */

#define PDP11_OPCODE_IMM8        9      /* 8-bit immediate */

#define PDP11_OPCODE_IMM6       10      /* 6-bit immediate */

#define PDP11_OPCODE_IMM3       11      /* 3-bit immediate */

#define PDP11_OPCODE_ILLEGAL    12      /* illegal instruction */

/*

 * PDP-11 instruction set extensions.

 *

 * Please keep the numbers low, as they are used as indices into

 * an array.

 */

#define PDP11_NONE       0      /* not in instruction set */

#define PDP11_BASIC      1      /* basic instruction set (11/20 etc) */

#define PDP11_CSM        2      /* commercial instruction set */

#define PDP11_CIS        3      /* commercial instruction set */

#define PDP11_EIS        4      /* extended instruction set (11/45 etc) */

#define PDP11_FIS        5      /* KEV11 floating-point instructions */

#define PDP11_FPP        6      /* FP-11 floating-point instructions */

#define PDP11_LEIS       7      /* limited extended instruction set

                                   (11/40 etc) */

#define PDP11_MFPT       8      /* move from processor type */

#define PDP11_MPROC      9      /* multiprocessor instructions: tstset,

                                   wrtlck */

#define PDP11_MXPS      10      /* move from/to processor status */

#define PDP11_SPL       11      /* set priority level */

#define PDP11_UCODE     12      /* microcode instructions: ldub, med, xfc */

#define PDP11_EXT_NUM   13      /* total number of extension types */

struct pdp11_opcode

{

  const char *name;

  int opcode;

  int mask;

  int type;

  int extension;

};

extern const struct pdp11_opcode pdp11_opcodes[];

extern const struct pdp11_opcode pdp11_aliases[];

extern const int pdp11_num_opcodes, pdp11_num_aliases;

/* end of pdp11.h */