/* PDP-11 opcde list.   Copyright (C) 2001-2026 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 3, 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 COPYING3.  If not, write to   the Free Software Foundation, 51 Franklin Street - Fifth Floor,   Boston, MA 02110-1301, 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_FOP	 5	/* fpu accumulator and generic float					   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 */#define PDP11_OPCODE_FOP_AC	13	/* generic float argument, then fpu					   accumulator */#define PDP11_OPCODE_FOP	14	/* generic float operand */#define PDP11_OPCODE_AC_OP	15	/* fpu accumulator and generic int					   operand */#define PDP11_OPCODE_OP_AC	16	/* generic int argument, then fpu					   accumulator */ /* * 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 */