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/* Print i386 instructions for GDB, the GNU debugger.
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Copyright (C) 1988, 89, 91, 93, 94, 95, 96, 97, 1998
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Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*
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* 80386 instruction printer by Pace Willisson (pace@prep.ai.mit.edu)
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* July 1988
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* modified by John Hassey (hassey@dg-rtp.dg.com)
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*/
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/*
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* The main tables describing the instructions is essentially a copy
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* of the "Opcode Map" chapter (Appendix A) of the Intel 80386
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* Programmers Manual. Usually, there is a capital letter, followed
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* by a small letter. The capital letter tell the addressing mode,
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* and the small letter tells about the operand size. Refer to
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* the Intel manual for details.
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*/
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#include "dis-asm.h" |
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#define MAXLEN 20 |
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#include <setjmp.h> |
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static int fetch_data PARAMS ((struct disassemble_info *, bfd_byte *)); |
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|
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struct dis_private
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{
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/* Points to first byte not fetched. */
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bfd_byte *max_fetched; |
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bfd_byte the_buffer[MAXLEN]; |
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bfd_vma insn_start; |
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jmp_buf bailout; |
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}; |
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|
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/* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive)
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to ADDR (exclusive) are valid. Returns 1 for success, longjmps
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on error. */
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#define FETCH_DATA(info, addr) \
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((addr) <= ((struct dis_private *)(info->private_data))->max_fetched \
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? 1 : fetch_data ((info), (addr)))
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static int |
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fetch_data (info, addr) |
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struct disassemble_info *info;
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bfd_byte *addr; |
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{
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int status;
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struct dis_private *priv = (struct dis_private *)info->private_data; |
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bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer); |
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status = (*info->read_memory_func) (start, |
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priv->max_fetched, |
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addr - priv->max_fetched, |
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info); |
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if (status != 0) |
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{
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(*info->memory_error_func) (status, start, info); |
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longjmp (priv->bailout, 1);
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} |
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else
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priv->max_fetched = addr; |
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return 1; |
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} |
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#define Eb OP_E, b_mode
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#define indirEb OP_indirE, b_mode
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#define Gb OP_G, b_mode
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#define Ev OP_E, v_mode
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#define indirEv OP_indirE, v_mode
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#define Ew OP_E, w_mode
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#define Ma OP_E, v_mode
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#define M OP_E, 0 |
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#define Mp OP_E, 0 /* ? */ |
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#define Gv OP_G, v_mode
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#define Gw OP_G, w_mode
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#define Rw OP_rm, w_mode
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#define Rd OP_rm, d_mode
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#define Ib OP_I, b_mode
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#define sIb OP_sI, b_mode /* sign extened byte */ |
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#define Iv OP_I, v_mode
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#define Iw OP_I, w_mode
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#define Jb OP_J, b_mode
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#define Jv OP_J, v_mode
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#if 0
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#define ONE OP_ONE, 0
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#endif
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#define Cd OP_C, d_mode
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#define Dd OP_D, d_mode
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#define Td OP_T, d_mode
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#define eAX OP_REG, eAX_reg
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#define eBX OP_REG, eBX_reg
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#define eCX OP_REG, eCX_reg
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#define eDX OP_REG, eDX_reg
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#define eSP OP_REG, eSP_reg
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#define eBP OP_REG, eBP_reg
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#define eSI OP_REG, eSI_reg
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#define eDI OP_REG, eDI_reg
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#define AL OP_REG, al_reg
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#define CL OP_REG, cl_reg
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#define DL OP_REG, dl_reg
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#define BL OP_REG, bl_reg
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#define AH OP_REG, ah_reg
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#define CH OP_REG, ch_reg
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#define DH OP_REG, dh_reg
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#define BH OP_REG, bh_reg
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#define AX OP_REG, ax_reg
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#define DX OP_REG, dx_reg
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#define indirDX OP_REG, indir_dx_reg
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#define Sw OP_SEG, w_mode
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#define Ap OP_DIR, lptr
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#define Av OP_DIR, v_mode
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#define Ob OP_OFF, b_mode
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#define Ov OP_OFF, v_mode
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#define Xb OP_DSSI, b_mode
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#define Xv OP_DSSI, v_mode
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#define Yb OP_ESDI, b_mode
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#define Yv OP_ESDI, v_mode
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#define es OP_REG, es_reg
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#define ss OP_REG, ss_reg
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#define cs OP_REG, cs_reg
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#define ds OP_REG, ds_reg
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#define fs OP_REG, fs_reg
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#define gs OP_REG, gs_reg
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#define MX OP_MMX, 0 |
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#define EM OP_EM, v_mode
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#define MS OP_MS, b_mode
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typedef int (*op_rtn) PARAMS ((int bytemode, int aflag, int dflag)); |
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static int OP_E PARAMS ((int, int, int)); |
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static int OP_G PARAMS ((int, int, int)); |
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static int OP_I PARAMS ((int, int, int)); |
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static int OP_indirE PARAMS ((int, int, int)); |
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static int OP_sI PARAMS ((int, int, int)); |
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static int OP_REG PARAMS ((int, int, int)); |
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static int OP_J PARAMS ((int, int, int)); |
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static int OP_DIR PARAMS ((int, int, int)); |
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static int OP_OFF PARAMS ((int, int, int)); |
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static int OP_ESDI PARAMS ((int, int, int)); |
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static int OP_DSSI PARAMS ((int, int, int)); |
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static int OP_SEG PARAMS ((int, int, int)); |
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static int OP_C PARAMS ((int, int, int)); |
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static int OP_D PARAMS ((int, int, int)); |
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static int OP_T PARAMS ((int, int, int)); |
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static int OP_rm PARAMS ((int, int, int)); |
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static int OP_ST PARAMS ((int, int, int)); |
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static int OP_STi PARAMS ((int, int, int)); |
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#if 0
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static int OP_ONE PARAMS ((int, int, int));
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#endif
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static int OP_MMX PARAMS ((int, int, int)); |
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static int OP_EM PARAMS ((int, int, int)); |
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static int OP_MS PARAMS ((int, int, int)); |
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static void append_prefix PARAMS ((void)); |
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static void set_op PARAMS ((int op)); |
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static void putop PARAMS ((char *template, int aflag, int dflag)); |
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static void dofloat PARAMS ((int aflag, int dflag)); |
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static int get16 PARAMS ((void)); |
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static int get32 PARAMS ((void)); |
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static void ckprefix PARAMS ((void)); |
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#define b_mode 1 |
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#define v_mode 2 |
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#define w_mode 3 |
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#define d_mode 4 |
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#define es_reg 100 |
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#define cs_reg 101 |
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#define ss_reg 102 |
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#define ds_reg 103 |
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#define fs_reg 104 |
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#define gs_reg 105 |
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#define eAX_reg 107 |
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#define eCX_reg 108 |
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#define eDX_reg 109 |
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#define eBX_reg 110 |
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#define eSP_reg 111 |
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#define eBP_reg 112 |
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#define eSI_reg 113 |
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#define eDI_reg 114 |
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#define lptr 115 |
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#define al_reg 116 |
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#define cl_reg 117 |
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#define dl_reg 118 |
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#define bl_reg 119 |
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#define ah_reg 120 |
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#define ch_reg 121 |
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#define dh_reg 122 |
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#define bh_reg 123 |
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|
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#define ax_reg 124 |
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#define cx_reg 125 |
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#define dx_reg 126 |
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#define bx_reg 127 |
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#define sp_reg 128 |
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#define bp_reg 129 |
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#define si_reg 130 |
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#define di_reg 131 |
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|
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#define indir_dx_reg 150 |
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|
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#define GRP1b NULL, NULL, 0 |
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#define GRP1S NULL, NULL, 1 |
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#define GRP1Ss NULL, NULL, 2 |
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#define GRP2b NULL, NULL, 3 |
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#define GRP2S NULL, NULL, 4 |
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#define GRP2b_one NULL, NULL, 5 |
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#define GRP2S_one NULL, NULL, 6 |
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#define GRP2b_cl NULL, NULL, 7 |
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#define GRP2S_cl NULL, NULL, 8 |
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#define GRP3b NULL, NULL, 9 |
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#define GRP3S NULL, NULL, 10 |
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#define GRP4 NULL, NULL, 11 |
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#define GRP5 NULL, NULL, 12 |
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#define GRP6 NULL, NULL, 13 |
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#define GRP7 NULL, NULL, 14 |
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#define GRP8 NULL, NULL, 15 |
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#define GRP9 NULL, NULL, 16 |
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#define GRP10 NULL, NULL, 17 |
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#define GRP11 NULL, NULL, 18 |
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#define GRP12 NULL, NULL, 19 |
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|
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#define FLOATCODE 50 |
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#define FLOAT NULL, NULL, FLOATCODE |
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|
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struct dis386 {
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char *name;
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op_rtn op1; |
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int bytemode1;
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op_rtn op2; |
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int bytemode2;
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op_rtn op3; |
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int bytemode3;
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}; |
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|
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static struct dis386 dis386[] = { |
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/* 00 */
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{ "addb", Eb, Gb },
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{ "addS", Ev, Gv },
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{ "addb", Gb, Eb },
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{ "addS", Gv, Ev },
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{ "addb", AL, Ib },
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{ "addS", eAX, Iv },
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{ "pushS", es },
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{ "popS", es },
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/* 08 */
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{ "orb", Eb, Gb },
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{ "orS", Ev, Gv },
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{ "orb", Gb, Eb },
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{ "orS", Gv, Ev },
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{ "orb", AL, Ib },
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{ "orS", eAX, Iv },
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{ "pushS", cs },
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{ "(bad)" }, /* 0x0f extended opcode escape */
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/* 10 */
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{ "adcb", Eb, Gb },
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{ "adcS", Ev, Gv },
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{ "adcb", Gb, Eb },
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{ "adcS", Gv, Ev },
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{ "adcb", AL, Ib },
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{ "adcS", eAX, Iv },
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{ "pushS", ss },
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{ "popS", ss },
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/* 18 */
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{ "sbbb", Eb, Gb },
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{ "sbbS", Ev, Gv },
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{ "sbbb", Gb, Eb },
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{ "sbbS", Gv, Ev },
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{ "sbbb", AL, Ib },
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{ "sbbS", eAX, Iv },
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{ "pushS", ds },
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{ "popS", ds },
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/* 20 */
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{ "andb", Eb, Gb },
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{ "andS", Ev, Gv },
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{ "andb", Gb, Eb },
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{ "andS", Gv, Ev },
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{ "andb", AL, Ib },
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{ "andS", eAX, Iv },
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{ "(bad)" }, /* SEG ES prefix */
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{ "daa" },
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/* 28 */
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{ "subb", Eb, Gb },
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{ "subS", Ev, Gv },
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{ "subb", Gb, Eb },
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{ "subS", Gv, Ev },
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{ "subb", AL, Ib },
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{ "subS", eAX, Iv },
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{ "(bad)" }, /* SEG CS prefix */
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{ "das" },
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/* 30 */
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{ "xorb", Eb, Gb },
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{ "xorS", Ev, Gv },
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{ "xorb", Gb, Eb },
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{ "xorS", Gv, Ev },
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{ "xorb", AL, Ib },
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{ "xorS", eAX, Iv },
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{ "(bad)" }, /* SEG SS prefix */
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{ "aaa" },
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/* 38 */
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{ "cmpb", Eb, Gb },
|
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{ "cmpS", Ev, Gv },
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{ "cmpb", Gb, Eb },
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{ "cmpS", Gv, Ev },
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{ "cmpb", AL, Ib },
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{ "cmpS", eAX, Iv },
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{ "(bad)" }, /* SEG DS prefix */
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{ "aas" },
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/* 40 */
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{ "incS", eAX },
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{ "incS", eCX },
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{ "incS", eDX },
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{ "incS", eBX },
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{ "incS", eSP },
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{ "incS", eBP },
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{ "incS", eSI },
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{ "incS", eDI },
|
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/* 48 */
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{ "decS", eAX },
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{ "decS", eCX },
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{ "decS", eDX },
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{ "decS", eBX },
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{ "decS", eSP },
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{ "decS", eBP },
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{ "decS", eSI },
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{ "decS", eDI },
|
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/* 50 */
|
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{ "pushS", eAX },
|
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{ "pushS", eCX },
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{ "pushS", eDX },
|
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{ "pushS", eBX },
|
| 357 |
{ "pushS", eSP },
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| 358 |
{ "pushS", eBP },
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| 359 |
{ "pushS", eSI },
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{ "pushS", eDI },
|
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/* 58 */
|
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{ "popS", eAX },
|
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{ "popS", eCX },
|
| 364 |
{ "popS", eDX },
|
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{ "popS", eBX },
|
| 366 |
{ "popS", eSP },
|
| 367 |
{ "popS", eBP },
|
| 368 |
{ "popS", eSI },
|
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{ "popS", eDI },
|
| 370 |
/* 60 */
|
| 371 |
{ "pusha" },
|
| 372 |
{ "popa" },
|
| 373 |
{ "boundS", Gv, Ma },
|
| 374 |
{ "arpl", Ew, Gw },
|
| 375 |
{ "(bad)" }, /* seg fs */
|
| 376 |
{ "(bad)" }, /* seg gs */
|
| 377 |
{ "(bad)" }, /* op size prefix */
|
| 378 |
{ "(bad)" }, /* adr size prefix */
|
| 379 |
/* 68 */
|
| 380 |
{ "pushS", Iv }, /* 386 book wrong */
|
| 381 |
{ "imulS", Gv, Ev, Iv },
|
| 382 |
{ "pushS", sIb }, /* push of byte really pushes 2 or 4 bytes */
|
| 383 |
{ "imulS", Gv, Ev, Ib },
|
| 384 |
{ "insb", Yb, indirDX },
|
| 385 |
{ "insS", Yv, indirDX },
|
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{ "outsb", indirDX, Xb },
|
| 387 |
{ "outsS", indirDX, Xv },
|
| 388 |
/* 70 */
|
| 389 |
{ "jo", Jb },
|
| 390 |
{ "jno", Jb },
|
| 391 |
{ "jb", Jb },
|
| 392 |
{ "jae", Jb },
|
| 393 |
{ "je", Jb },
|
| 394 |
{ "jne", Jb },
|
| 395 |
{ "jbe", Jb },
|
| 396 |
{ "ja", Jb },
|
| 397 |
/* 78 */
|
| 398 |
{ "js", Jb },
|
| 399 |
{ "jns", Jb },
|
| 400 |
{ "jp", Jb },
|
| 401 |
{ "jnp", Jb },
|
| 402 |
{ "jl", Jb },
|
| 403 |
{ "jnl", Jb },
|
| 404 |
{ "jle", Jb },
|
| 405 |
{ "jg", Jb },
|
| 406 |
/* 80 */
|
| 407 |
{ GRP1b },
|
| 408 |
{ GRP1S },
|
| 409 |
{ "(bad)" },
|
| 410 |
{ GRP1Ss },
|
| 411 |
{ "testb", Eb, Gb },
|
| 412 |
{ "testS", Ev, Gv },
|
| 413 |
{ "xchgb", Eb, Gb },
|
| 414 |
{ "xchgS", Ev, Gv },
|
| 415 |
/* 88 */
|
| 416 |
{ "movb", Eb, Gb },
|
| 417 |
{ "movS", Ev, Gv },
|
| 418 |
{ "movb", Gb, Eb },
|
| 419 |
{ "movS", Gv, Ev },
|
| 420 |
{ "movS", Ev, Sw },
|
| 421 |
{ "leaS", Gv, M },
|
| 422 |
{ "movS", Sw, Ev },
|
| 423 |
{ "popS", Ev },
|
| 424 |
/* 90 */
|
| 425 |
{ "nop" },
|
| 426 |
{ "xchgS", eCX, eAX },
|
| 427 |
{ "xchgS", eDX, eAX },
|
| 428 |
{ "xchgS", eBX, eAX },
|
| 429 |
{ "xchgS", eSP, eAX },
|
| 430 |
{ "xchgS", eBP, eAX },
|
| 431 |
{ "xchgS", eSI, eAX },
|
| 432 |
{ "xchgS", eDI, eAX },
|
| 433 |
/* 98 */
|
| 434 |
{ "cWtS" },
|
| 435 |
{ "cStd" },
|
| 436 |
{ "lcall", Ap },
|
| 437 |
{ "(bad)" }, /* fwait */
|
| 438 |
{ "pushf" },
|
| 439 |
{ "popf" },
|
| 440 |
{ "sahf" },
|
| 441 |
{ "lahf" },
|
| 442 |
/* a0 */
|
| 443 |
{ "movb", AL, Ob },
|
| 444 |
{ "movS", eAX, Ov },
|
| 445 |
{ "movb", Ob, AL },
|
| 446 |
{ "movS", Ov, eAX },
|
| 447 |
{ "movsb", Yb, Xb },
|
| 448 |
{ "movsS", Yv, Xv },
|
| 449 |
{ "cmpsb", Yb, Xb },
|
| 450 |
{ "cmpsS", Yv, Xv },
|
| 451 |
/* a8 */
|
| 452 |
{ "testb", AL, Ib },
|
| 453 |
{ "testS", eAX, Iv },
|
| 454 |
{ "stosb", Yb, AL },
|
| 455 |
{ "stosS", Yv, eAX },
|
| 456 |
{ "lodsb", AL, Xb },
|
| 457 |
{ "lodsS", eAX, Xv },
|
| 458 |
{ "scasb", AL, Yb },
|
| 459 |
{ "scasS", eAX, Yv },
|
| 460 |
/* b0 */
|
| 461 |
{ "movb", AL, Ib },
|
| 462 |
{ "movb", CL, Ib },
|
| 463 |
{ "movb", DL, Ib },
|
| 464 |
{ "movb", BL, Ib },
|
| 465 |
{ "movb", AH, Ib },
|
| 466 |
{ "movb", CH, Ib },
|
| 467 |
{ "movb", DH, Ib },
|
| 468 |
{ "movb", BH, Ib },
|
| 469 |
/* b8 */
|
| 470 |
{ "movS", eAX, Iv },
|
| 471 |
{ "movS", eCX, Iv },
|
| 472 |
{ "movS", eDX, Iv },
|
| 473 |
{ "movS", eBX, Iv },
|
| 474 |
{ "movS", eSP, Iv },
|
| 475 |
{ "movS", eBP, Iv },
|
| 476 |
{ "movS", eSI, Iv },
|
| 477 |
{ "movS", eDI, Iv },
|
| 478 |
/* c0 */
|
| 479 |
{ GRP2b },
|
| 480 |
{ GRP2S },
|
| 481 |
{ "ret", Iw },
|
| 482 |
{ "ret" },
|
| 483 |
{ "lesS", Gv, Mp },
|
| 484 |
{ "ldsS", Gv, Mp },
|
| 485 |
{ "movb", Eb, Ib },
|
| 486 |
{ "movS", Ev, Iv },
|
| 487 |
/* c8 */
|
| 488 |
{ "enter", Iw, Ib },
|
| 489 |
{ "leave" },
|
| 490 |
{ "lret", Iw },
|
| 491 |
{ "lret" },
|
| 492 |
{ "int3" },
|
| 493 |
{ "int", Ib },
|
| 494 |
{ "into" },
|
| 495 |
{ "iret" },
|
| 496 |
/* d0 */
|
| 497 |
{ GRP2b_one },
|
| 498 |
{ GRP2S_one },
|
| 499 |
{ GRP2b_cl },
|
| 500 |
{ GRP2S_cl },
|
| 501 |
{ "aam", Ib },
|
| 502 |
{ "aad", Ib },
|
| 503 |
{ "(bad)" },
|
| 504 |
{ "xlat" },
|
| 505 |
/* d8 */
|
| 506 |
{ FLOAT },
|
| 507 |
{ FLOAT },
|
| 508 |
{ FLOAT },
|
| 509 |
{ FLOAT },
|
| 510 |
{ FLOAT },
|
| 511 |
{ FLOAT },
|
| 512 |
{ FLOAT },
|
| 513 |
{ FLOAT },
|
| 514 |
/* e0 */
|
| 515 |
{ "loopne", Jb },
|
| 516 |
{ "loope", Jb },
|
| 517 |
{ "loop", Jb },
|
| 518 |
{ "jCcxz", Jb },
|
| 519 |
{ "inb", AL, Ib },
|
| 520 |
{ "inS", eAX, Ib },
|
| 521 |
{ "outb", Ib, AL },
|
| 522 |
{ "outS", Ib, eAX },
|
| 523 |
/* e8 */
|
| 524 |
{ "call", Av },
|
| 525 |
{ "jmp", Jv },
|
| 526 |
{ "ljmp", Ap },
|
| 527 |
{ "jmp", Jb },
|
| 528 |
{ "inb", AL, indirDX },
|
| 529 |
{ "inS", eAX, indirDX },
|
| 530 |
{ "outb", indirDX, AL },
|
| 531 |
{ "outS", indirDX, eAX },
|
| 532 |
/* f0 */
|
| 533 |
{ "(bad)" }, /* lock prefix */
|
| 534 |
{ "(bad)" },
|
| 535 |
{ "(bad)" }, /* repne */
|
| 536 |
{ "(bad)" }, /* repz */
|
| 537 |
{ "hlt" },
|
| 538 |
{ "cmc" },
|
| 539 |
{ GRP3b },
|
| 540 |
{ GRP3S },
|
| 541 |
/* f8 */
|
| 542 |
{ "clc" },
|
| 543 |
{ "stc" },
|
| 544 |
{ "cli" },
|
| 545 |
{ "sti" },
|
| 546 |
{ "cld" },
|
| 547 |
{ "std" },
|
| 548 |
{ GRP4 },
|
| 549 |
{ GRP5 },
|
| 550 |
}; |
| 551 |
|
| 552 |
static struct dis386 dis386_twobyte[] = { |
| 553 |
/* 00 */
|
| 554 |
{ GRP6 },
|
| 555 |
{ GRP7 },
|
| 556 |
{ "larS", Gv, Ew },
|
| 557 |
{ "lslS", Gv, Ew },
|
| 558 |
{ "(bad)" },
|
| 559 |
{ "(bad)" },
|
| 560 |
{ "clts" },
|
| 561 |
{ "(bad)" },
|
| 562 |
/* 08 */
|
| 563 |
{ "invd" },
|
| 564 |
{ "wbinvd" },
|
| 565 |
{ "(bad)" }, { "ud2a" },
|
| 566 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 567 |
/* 10 */
|
| 568 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 569 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 570 |
/* 18 */
|
| 571 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 572 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 573 |
/* 20 */
|
| 574 |
/* these are all backward in appendix A of the intel book */
|
| 575 |
{ "movl", Rd, Cd },
|
| 576 |
{ "movl", Rd, Dd },
|
| 577 |
{ "movl", Cd, Rd },
|
| 578 |
{ "movl", Dd, Rd },
|
| 579 |
{ "movl", Rd, Td },
|
| 580 |
{ "(bad)" },
|
| 581 |
{ "movl", Td, Rd },
|
| 582 |
{ "(bad)" },
|
| 583 |
/* 28 */
|
| 584 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 585 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 586 |
/* 30 */
|
| 587 |
{ "wrmsr" }, { "rdtsc" }, { "rdmsr" }, { "rdpmc" },
|
| 588 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 589 |
/* 38 */
|
| 590 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 591 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 592 |
/* 40 */
|
| 593 |
{ "cmovo", Gv,Ev }, { "cmovno", Gv,Ev }, { "cmovb", Gv,Ev }, { "cmovae", Gv,Ev },
|
| 594 |
{ "cmove", Gv,Ev }, { "cmovne", Gv,Ev }, { "cmovbe", Gv,Ev }, { "cmova", Gv,Ev },
|
| 595 |
/* 48 */
|
| 596 |
{ "cmovs", Gv,Ev }, { "cmovns", Gv,Ev }, { "cmovp", Gv,Ev }, { "cmovnp", Gv,Ev },
|
| 597 |
{ "cmovl", Gv,Ev }, { "cmovge", Gv,Ev }, { "cmovle", Gv,Ev }, { "cmovg", Gv,Ev },
|
| 598 |
/* 50 */
|
| 599 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 600 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 601 |
/* 58 */
|
| 602 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 603 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 604 |
/* 60 */
|
| 605 |
{ "punpcklbw", MX, EM },
|
| 606 |
{ "punpcklwd", MX, EM },
|
| 607 |
{ "punpckldq", MX, EM },
|
| 608 |
{ "packsswb", MX, EM },
|
| 609 |
{ "pcmpgtb", MX, EM },
|
| 610 |
{ "pcmpgtw", MX, EM },
|
| 611 |
{ "pcmpgtd", MX, EM },
|
| 612 |
{ "packuswb", MX, EM },
|
| 613 |
/* 68 */
|
| 614 |
{ "punpckhbw", MX, EM },
|
| 615 |
{ "punpckhwd", MX, EM },
|
| 616 |
{ "punpckhdq", MX, EM },
|
| 617 |
{ "packssdw", MX, EM },
|
| 618 |
{ "(bad)" }, { "(bad)" },
|
| 619 |
{ "movd", MX, Ev },
|
| 620 |
{ "movq", MX, EM },
|
| 621 |
/* 70 */
|
| 622 |
{ "(bad)" },
|
| 623 |
{ GRP10 },
|
| 624 |
{ GRP11 },
|
| 625 |
{ GRP12 },
|
| 626 |
{ "pcmpeqb", MX, EM },
|
| 627 |
{ "pcmpeqw", MX, EM },
|
| 628 |
{ "pcmpeqd", MX, EM },
|
| 629 |
{ "emms" },
|
| 630 |
/* 78 */
|
| 631 |
{ "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" },
|
| 632 |
{ "(bad)" }, { "(bad)" },
|
| 633 |
{ "movd", Ev, MX },
|
| 634 |
{ "movq", EM, MX },
|
| 635 |
/* 80 */
|
| 636 |
{ "jo", Jv },
|
| 637 |
{ "jno", Jv },
|
| 638 |
{ "jb", Jv },
|
| 639 |
{ "jae", Jv },
|
| 640 |
{ "je", Jv },
|
| 641 |
{ "jne", Jv },
|
| 642 |
{ "jbe", Jv },
|
| 643 |
{ "ja", Jv },
|
| 644 |
/* 88 */
|
| 645 |
{ "js", Jv },
|
| 646 |
{ "jns", Jv },
|
| 647 |
{ "jp", Jv },
|
| 648 |
{ "jnp", Jv },
|
| 649 |
{ "jl", Jv },
|
| 650 |
{ "jge", Jv },
|
| 651 |
{ "jle", Jv },
|
| 652 |
{ "jg", Jv },
|
| 653 |
/* 90 */
|
| 654 |
{ "seto", Eb },
|
| 655 |
{ "setno", Eb },
|
| 656 |
{ "setb", Eb },
|
| 657 |
{ "setae", Eb },
|
| 658 |
{ "sete", Eb },
|
| 659 |
{ "setne", Eb },
|
| 660 |
{ "setbe", Eb },
|
| 661 |
{ "seta", Eb },
|
| 662 |
/* 98 */
|
| 663 |
{ "sets", Eb },
|
| 664 |
{ "setns", Eb },
|
| 665 |
{ "setp", Eb },
|
| 666 |
{ "setnp", Eb },
|
| 667 |
{ "setl", Eb },
|
| 668 |
{ "setge", Eb },
|
| 669 |
{ "setle", Eb },
|
| 670 |
{ "setg", Eb },
|
| 671 |
/* a0 */
|
| 672 |
{ "pushS", fs },
|
| 673 |
{ "popS", fs },
|
| 674 |
{ "cpuid" },
|
| 675 |
{ "btS", Ev, Gv },
|
| 676 |
{ "shldS", Ev, Gv, Ib },
|
| 677 |
{ "shldS", Ev, Gv, CL },
|
| 678 |
{ "(bad)" },
|
| 679 |
{ "(bad)" },
|
| 680 |
/* a8 */
|
| 681 |
{ "pushS", gs },
|
| 682 |
{ "popS", gs },
|
| 683 |
{ "rsm" },
|
| 684 |
{ "btsS", Ev, Gv },
|
| 685 |
{ "shrdS", Ev, Gv, Ib },
|
| 686 |
{ "shrdS", Ev, Gv, CL },
|
| 687 |
{ "(bad)" },
|
| 688 |
{ "imulS", Gv, Ev },
|
| 689 |
/* b0 */
|
| 690 |
{ "cmpxchgb", Eb, Gb },
|
| 691 |
{ "cmpxchgS", Ev, Gv },
|
| 692 |
{ "lssS", Gv, Mp }, /* 386 lists only Mp */
|
| 693 |
{ "btrS", Ev, Gv },
|
| 694 |
{ "lfsS", Gv, Mp }, /* 386 lists only Mp */
|
| 695 |
{ "lgsS", Gv, Mp }, /* 386 lists only Mp */
|
| 696 |
{ "movzbS", Gv, Eb },
|
| 697 |
{ "movzwS", Gv, Ew },
|
| 698 |
/* b8 */
|
| 699 |
{ "ud2b" },
|
| 700 |
{ "(bad)" },
|
| 701 |
{ GRP8 },
|
| 702 |
{ "btcS", Ev, Gv },
|
| 703 |
{ "bsfS", Gv, Ev },
|
| 704 |
{ "bsrS", Gv, Ev },
|
| 705 |
{ "movsbS", Gv, Eb },
|
| 706 |
{ "movswS", Gv, Ew },
|
| 707 |
/* c0 */
|
| 708 |
{ "xaddb", Eb, Gb },
|
| 709 |
{ "xaddS", Ev, Gv },
|
| 710 |
{ "(bad)" },
|
| 711 |
{ "(bad)" },
|
| 712 |
{ "(bad)" },
|
| 713 |
{ "(bad)" },
|
| 714 |
{ "(bad)" },
|
| 715 |
{ GRP9 },
|
| 716 |
/* c8 */
|
| 717 |
{ "bswap", eAX },
|
| 718 |
{ "bswap", eCX },
|
| 719 |
{ "bswap", eDX },
|
| 720 |
{ "bswap", eBX },
|
| 721 |
{ "bswap", eSP },
|
| 722 |
{ "bswap", eBP },
|
| 723 |
{ "bswap", eSI },
|
| 724 |
{ "bswap", eDI },
|
| 725 |
/* d0 */
|
| 726 |
{ "(bad)" },
|
| 727 |
{ "psrlw", MX, EM },
|
| 728 |
{ "psrld", MX, EM },
|
| 729 |
{ "psrlq", MX, EM },
|
| 730 |
{ "(bad)" },
|
| 731 |
{ "pmullw", MX, EM },
|
| 732 |
{ "(bad)" }, { "(bad)" },
|
| 733 |
/* d8 */
|
| 734 |
{ "psubusb", MX, EM },
|
| 735 |
{ "psubusw", MX, EM },
|
| 736 |
{ "(bad)" },
|
| 737 |
{ "pand", MX, EM },
|
| 738 |
{ "paddusb", MX, EM },
|
| 739 |
{ "paddusw", MX, EM },
|
| 740 |
{ "(bad)" },
|
| 741 |
{ "pandn", MX, EM },
|
| 742 |
/* e0 */
|
| 743 |
{ "(bad)" },
|
| 744 |
{ "psraw", MX, EM },
|
| 745 |
{ "psrad", MX, EM },
|
| 746 |
{ "(bad)" },
|
| 747 |
{ "(bad)" },
|
| 748 |
{ "pmulhw", MX, EM },
|
| 749 |
{ "(bad)" }, { "(bad)" },
|
| 750 |
/* e8 */
|
| 751 |
{ "psubsb", MX, EM },
|
| 752 |
{ "psubsw", MX, EM },
|
| 753 |
{ "(bad)" },
|
| 754 |
{ "por", MX, EM },
|
| 755 |
{ "paddsb", MX, EM },
|
| 756 |
{ "paddsw", MX, EM },
|
| 757 |
{ "(bad)" },
|
| 758 |
{ "pxor", MX, EM },
|
| 759 |
/* f0 */
|
| 760 |
{ "(bad)" },
|
| 761 |
{ "psllw", MX, EM },
|
| 762 |
{ "pslld", MX, EM },
|
| 763 |
{ "psllq", MX, EM },
|
| 764 |
{ "(bad)" },
|
| 765 |
{ "pmaddwd", MX, EM },
|
| 766 |
{ "(bad)" }, { "(bad)" },
|
| 767 |
/* f8 */
|
| 768 |
{ "psubb", MX, EM },
|
| 769 |
{ "psubw", MX, EM },
|
| 770 |
{ "psubd", MX, EM },
|
| 771 |
{ "(bad)" },
|
| 772 |
{ "paddb", MX, EM },
|
| 773 |
{ "paddw", MX, EM },
|
| 774 |
{ "paddd", MX, EM },
|
| 775 |
{ "(bad)" }
|
| 776 |
}; |
| 777 |
|
| 778 |
static const unsigned char onebyte_has_modrm[256] = { |
| 779 |
1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, |
| 780 |
1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, |
| 781 |
1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, |
| 782 |
1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, |
| 783 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 784 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 785 |
0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0, |
| 786 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 787 |
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 788 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 789 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 790 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 791 |
1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0, |
| 792 |
1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, |
| 793 |
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 794 |
0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1 |
| 795 |
}; |
| 796 |
|
| 797 |
static const unsigned char twobyte_has_modrm[256] = { |
| 798 |
/* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */ |
| 799 |
/* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */ |
| 800 |
/* 20 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* 2f */ |
| 801 |
/* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */ |
| 802 |
/* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */ |
| 803 |
/* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */ |
| 804 |
/* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1, /* 6f */ |
| 805 |
/* 70 */ 0,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1, /* 7f */ |
| 806 |
/* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */ |
| 807 |
/* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */ |
| 808 |
/* a0 */ 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1, /* af */ |
| 809 |
/* b0 */ 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1, /* bf */ |
| 810 |
/* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */ |
| 811 |
/* d0 */ 0,1,1,1,0,1,0,0,1,1,0,1,1,1,0,1, /* df */ |
| 812 |
/* e0 */ 0,1,1,0,0,1,0,0,1,1,0,1,1,1,0,1, /* ef */ |
| 813 |
/* f0 */ 0,1,1,1,0,1,0,0,1,1,1,0,1,1,1,0 /* ff */ |
| 814 |
}; |
| 815 |
|
| 816 |
static char obuf[100]; |
| 817 |
static char *obufp; |
| 818 |
static char scratchbuf[100]; |
| 819 |
static unsigned char *start_codep; |
| 820 |
static unsigned char *codep; |
| 821 |
static disassemble_info *the_info;
|
| 822 |
static int mod; |
| 823 |
static int rm; |
| 824 |
static int reg; |
| 825 |
static void oappend PARAMS ((char *s)); |
| 826 |
|
| 827 |
static char *names32[]={ |
| 828 |
"%eax","%ecx","%edx","%ebx", "%esp","%ebp","%esi","%edi", |
| 829 |
}; |
| 830 |
static char *names16[] = { |
| 831 |
"%ax","%cx","%dx","%bx","%sp","%bp","%si","%di", |
| 832 |
}; |
| 833 |
static char *names8[] = { |
| 834 |
"%al","%cl","%dl","%bl","%ah","%ch","%dh","%bh", |
| 835 |
}; |
| 836 |
static char *names_seg[] = { |
| 837 |
"%es","%cs","%ss","%ds","%fs","%gs","%?","%?", |
| 838 |
}; |
| 839 |
static char *index16[] = { |
| 840 |
"bx+si","bx+di","bp+si","bp+di","si","di","bp","bx" |
| 841 |
}; |
| 842 |
|
| 843 |
static struct dis386 grps[][8] = { |
| 844 |
/* GRP1b */
|
| 845 |
{
|
| 846 |
{ "addb", Eb, Ib },
|
| 847 |
{ "orb", Eb, Ib },
|
| 848 |
{ "adcb", Eb, Ib },
|
| 849 |
{ "sbbb", Eb, Ib },
|
| 850 |
{ "andb", Eb, Ib },
|
| 851 |
{ "subb", Eb, Ib },
|
| 852 |
{ "xorb", Eb, Ib },
|
| 853 |
{ "cmpb", Eb, Ib }
|
| 854 |
}, |
| 855 |
/* GRP1S */
|
| 856 |
{
|
| 857 |
{ "addS", Ev, Iv },
|
| 858 |
{ "orS", Ev, Iv },
|
| 859 |
{ "adcS", Ev, Iv },
|
| 860 |
{ "sbbS", Ev, Iv },
|
| 861 |
{ "andS", Ev, Iv },
|
| 862 |
{ "subS", Ev, Iv },
|
| 863 |
{ "xorS", Ev, Iv },
|
| 864 |
{ "cmpS", Ev, Iv }
|
| 865 |
}, |
| 866 |
/* GRP1Ss */
|
| 867 |
{
|
| 868 |
{ "addS", Ev, sIb },
|
| 869 |
{ "orS", Ev, sIb },
|
| 870 |
{ "adcS", Ev, sIb },
|
| 871 |
{ "sbbS", Ev, sIb },
|
| 872 |
{ "andS", Ev, sIb },
|
| 873 |
{ "subS", Ev, sIb },
|
| 874 |
{ "xorS", Ev, sIb },
|
| 875 |
{ "cmpS", Ev, sIb }
|
| 876 |
}, |
| 877 |
/* GRP2b */
|
| 878 |
{
|
| 879 |
{ "rolb", Eb, Ib },
|
| 880 |
{ "rorb", Eb, Ib },
|
| 881 |
{ "rclb", Eb, Ib },
|
| 882 |
{ "rcrb", Eb, Ib },
|
| 883 |
{ "shlb", Eb, Ib },
|
| 884 |
{ "shrb", Eb, Ib },
|
| 885 |
{ "(bad)" },
|
| 886 |
{ "sarb", Eb, Ib },
|
| 887 |
}, |
| 888 |
/* GRP2S */
|
| 889 |
{
|
| 890 |
{ "rolS", Ev, Ib },
|
| 891 |
{ "rorS", Ev, Ib },
|
| 892 |
{ "rclS", Ev, Ib },
|
| 893 |
{ "rcrS", Ev, Ib },
|
| 894 |
{ "shlS", Ev, Ib },
|
| 895 |
{ "shrS", Ev, Ib },
|
| 896 |
{ "(bad)" },
|
| 897 |
{ "sarS", Ev, Ib },
|
| 898 |
}, |
| 899 |
/* GRP2b_one */
|
| 900 |
{
|
| 901 |
{ "rolb", Eb },
|
| 902 |
{ "rorb", Eb },
|
| 903 |
{ "rclb", Eb },
|
| 904 |
{ "rcrb", Eb },
|
| 905 |
{ "shlb", Eb },
|
| 906 |
{ "shrb", Eb },
|
| 907 |
{ "(bad)" },
|
| 908 |
{ "sarb", Eb },
|
| 909 |
}, |
| 910 |
/* GRP2S_one */
|
| 911 |
{
|
| 912 |
{ "rolS", Ev },
|
| 913 |
{ "rorS", Ev },
|
| 914 |
{ "rclS", Ev },
|
| 915 |
{ "rcrS", Ev },
|
| 916 |
{ "shlS", Ev },
|
| 917 |
{ "shrS", Ev },
|
| 918 |
{ "(bad)" },
|
| 919 |
{ "sarS", Ev },
|
| 920 |
}, |
| 921 |
/* GRP2b_cl */
|
| 922 |
{
|
| 923 |
{ "rolb", Eb, CL },
|
| 924 |
{ "rorb", Eb, CL },
|
| 925 |
{ "rclb", Eb, CL },
|
| 926 |
{ "rcrb", Eb, CL },
|
| 927 |
{ "shlb", Eb, CL },
|
| 928 |
{ "shrb", Eb, CL },
|
| 929 |
{ "(bad)" },
|
| 930 |
{ "sarb", Eb, CL },
|
| 931 |
}, |
| 932 |
/* GRP2S_cl */
|
| 933 |
{
|
| 934 |
{ "rolS", Ev, CL },
|
| 935 |
{ "rorS", Ev, CL },
|
| 936 |
{ "rclS", Ev, CL },
|
| 937 |
{ "rcrS", Ev, CL },
|
| 938 |
{ "shlS", Ev, CL },
|
| 939 |
{ "shrS", Ev, CL },
|
| 940 |
{ "(bad)" },
|
| 941 |
{ "sarS", Ev, CL }
|
| 942 |
}, |
| 943 |
/* GRP3b */
|
| 944 |
{
|
| 945 |
{ "testb", Eb, Ib },
|
| 946 |
{ "(bad)", Eb },
|
| 947 |
{ "notb", Eb },
|
| 948 |
{ "negb", Eb },
|
| 949 |
{ "mulb", AL, Eb },
|
| 950 |
{ "imulb", AL, Eb },
|
| 951 |
{ "divb", AL, Eb },
|
| 952 |
{ "idivb", AL, Eb }
|
| 953 |
}, |
| 954 |
/* GRP3S */
|
| 955 |
{
|
| 956 |
{ "testS", Ev, Iv },
|
| 957 |
{ "(bad)" },
|
| 958 |
{ "notS", Ev },
|
| 959 |
{ "negS", Ev },
|
| 960 |
{ "mulS", eAX, Ev },
|
| 961 |
{ "imulS", eAX, Ev },
|
| 962 |
{ "divS", eAX, Ev },
|
| 963 |
{ "idivS", eAX, Ev },
|
| 964 |
}, |
| 965 |
/* GRP4 */
|
| 966 |
{
|
| 967 |
{ "incb", Eb },
|
| 968 |
{ "decb", Eb },
|
| 969 |
{ "(bad)" },
|
| 970 |
{ "(bad)" },
|
| 971 |
{ "(bad)" },
|
| 972 |
{ "(bad)" },
|
| 973 |
{ "(bad)" },
|
| 974 |
{ "(bad)" },
|
| 975 |
}, |
| 976 |
/* GRP5 */
|
| 977 |
{
|
| 978 |
{ "incS", Ev },
|
| 979 |
{ "decS", Ev },
|
| 980 |
{ "call", indirEv },
|
| 981 |
{ "lcall", indirEv },
|
| 982 |
{ "jmp", indirEv },
|
| 983 |
{ "ljmp", indirEv },
|
| 984 |
{ "pushS", Ev },
|
| 985 |
{ "(bad)" },
|
| 986 |
}, |
| 987 |
/* GRP6 */
|
| 988 |
{
|
| 989 |
{ "sldt", Ew },
|
| 990 |
{ "str", Ew },
|
| 991 |
{ "lldt", Ew },
|
| 992 |
{ "ltr", Ew },
|
| 993 |
{ "verr", Ew },
|
| 994 |
{ "verw", Ew },
|
| 995 |
{ "(bad)" },
|
| 996 |
{ "(bad)" }
|
| 997 |
}, |
| 998 |
/* GRP7 */
|
| 999 |
{
|
| 1000 |
{ "sgdt", Ew },
|
| 1001 |
{ "sidt", Ew },
|
| 1002 |
{ "lgdt", Ew },
|
| 1003 |
{ "lidt", Ew },
|
| 1004 |
{ "smsw", Ew },
|
| 1005 |
{ "(bad)" },
|
| 1006 |
{ "lmsw", Ew },
|
| 1007 |
{ "invlpg", Ew },
|
| 1008 |
}, |
| 1009 |
/* GRP8 */
|
| 1010 |
{
|
| 1011 |
{ "(bad)" },
|
| 1012 |
{ "(bad)" },
|
| 1013 |
{ "(bad)" },
|
| 1014 |
{ "(bad)" },
|
| 1015 |
{ "btS", Ev, Ib },
|
| 1016 |
{ "btsS", Ev, Ib },
|
| 1017 |
{ "btrS", Ev, Ib },
|
| 1018 |
{ "btcS", Ev, Ib },
|
| 1019 |
}, |
| 1020 |
/* GRP9 */
|
| 1021 |
{
|
| 1022 |
{ "(bad)" },
|
| 1023 |
{ "cmpxchg8b", Ev },
|
| 1024 |
{ "(bad)" },
|
| 1025 |
{ "(bad)" },
|
| 1026 |
{ "(bad)" },
|
| 1027 |
{ "(bad)" },
|
| 1028 |
{ "(bad)" },
|
| 1029 |
{ "(bad)" },
|
| 1030 |
}, |
| 1031 |
/* GRP10 */
|
| 1032 |
{
|
| 1033 |
{ "(bad)" },
|
| 1034 |
{ "(bad)" },
|
| 1035 |
{ "psrlw", MS, Ib },
|
| 1036 |
{ "(bad)" },
|
| 1037 |
{ "psraw", MS, Ib },
|
| 1038 |
{ "(bad)" },
|
| 1039 |
{ "psllw", MS, Ib },
|
| 1040 |
{ "(bad)" },
|
| 1041 |
}, |
| 1042 |
/* GRP11 */
|
| 1043 |
{
|
| 1044 |
{ "(bad)" },
|
| 1045 |
{ "(bad)" },
|
| 1046 |
{ "psrld", MS, Ib },
|
| 1047 |
{ "(bad)" },
|
| 1048 |
{ "psrad", MS, Ib },
|
| 1049 |
{ "(bad)" },
|
| 1050 |
{ "pslld", MS, Ib },
|
| 1051 |
{ "(bad)" },
|
| 1052 |
}, |
| 1053 |
/* GRP12 */
|
| 1054 |
{
|
| 1055 |
{ "(bad)" },
|
| 1056 |
{ "(bad)" },
|
| 1057 |
{ "psrlq", MS, Ib },
|
| 1058 |
{ "(bad)" },
|
| 1059 |
{ "(bad)" },
|
| 1060 |
{ "(bad)" },
|
| 1061 |
{ "psllq", MS, Ib },
|
| 1062 |
{ "(bad)" },
|
| 1063 |
} |
| 1064 |
}; |
| 1065 |
|
| 1066 |
#define PREFIX_REPZ 1 |
| 1067 |
#define PREFIX_REPNZ 2 |
| 1068 |
#define PREFIX_LOCK 4 |
| 1069 |
#define PREFIX_CS 8 |
| 1070 |
#define PREFIX_SS 0x10 |
| 1071 |
#define PREFIX_DS 0x20 |
| 1072 |
#define PREFIX_ES 0x40 |
| 1073 |
#define PREFIX_FS 0x80 |
| 1074 |
#define PREFIX_GS 0x100 |
| 1075 |
#define PREFIX_DATA 0x200 |
| 1076 |
#define PREFIX_ADR 0x400 |
| 1077 |
#define PREFIX_FWAIT 0x800 |
| 1078 |
|
| 1079 |
static int prefixes; |
| 1080 |
|
| 1081 |
static void |
| 1082 |
ckprefix () |
| 1083 |
{
|
| 1084 |
prefixes = 0;
|
| 1085 |
while (1) |
| 1086 |
{
|
| 1087 |
FETCH_DATA (the_info, codep + 1);
|
| 1088 |
switch (*codep)
|
| 1089 |
{
|
| 1090 |
case 0xf3: |
| 1091 |
prefixes |= PREFIX_REPZ; |
| 1092 |
break;
|
| 1093 |
case 0xf2: |
| 1094 |
prefixes |= PREFIX_REPNZ; |
| 1095 |
break;
|
| 1096 |
case 0xf0: |
| 1097 |
prefixes |= PREFIX_LOCK; |
| 1098 |
break;
|
| 1099 |
case 0x2e: |
| 1100 |
prefixes |= PREFIX_CS; |
| 1101 |
break;
|
| 1102 |
case 0x36: |
| 1103 |
prefixes |= PREFIX_SS; |
| 1104 |
break;
|
| 1105 |
case 0x3e: |
| 1106 |
prefixes |= PREFIX_DS; |
| 1107 |
break;
|
| 1108 |
case 0x26: |
| 1109 |
prefixes |= PREFIX_ES; |
| 1110 |
break;
|
| 1111 |
case 0x64: |
| 1112 |
prefixes |= PREFIX_FS; |
| 1113 |
break;
|
| 1114 |
case 0x65: |
| 1115 |
prefixes |= PREFIX_GS; |
| 1116 |
break;
|
| 1117 |
case 0x66: |
| 1118 |
prefixes |= PREFIX_DATA; |
| 1119 |
break;
|
| 1120 |
case 0x67: |
| 1121 |
prefixes |= PREFIX_ADR; |
| 1122 |
break;
|
| 1123 |
case 0x9b: |
| 1124 |
prefixes |= PREFIX_FWAIT; |
| 1125 |
break;
|
| 1126 |
default:
|
| 1127 |
return;
|
| 1128 |
} |
| 1129 |
codep++; |
| 1130 |
} |
| 1131 |
} |
| 1132 |
|
| 1133 |
static char op1out[100], op2out[100], op3out[100]; |
| 1134 |
static int op_address[3], op_ad, op_index[3]; |
| 1135 |
static int start_pc; |
| 1136 |
|
| 1137 |
|
| 1138 |
/*
|
| 1139 |
* On the 386's of 1988, the maximum length of an instruction is 15 bytes.
|
| 1140 |
* (see topic "Redundant prefixes" in the "Differences from 8086"
|
| 1141 |
* section of the "Virtual 8086 Mode" chapter.)
|
| 1142 |
* 'pc' should be the address of this instruction, it will
|
| 1143 |
* be used to print the target address if this is a relative jump or call
|
| 1144 |
* The function returns the length of this instruction in bytes.
|
| 1145 |
*/
|
| 1146 |
|
| 1147 |
int print_insn_x86 PARAMS ((bfd_vma pc, disassemble_info *info, int aflag, |
| 1148 |
int dflag));
|
| 1149 |
int
|
| 1150 |
print_insn_i386 (pc, info) |
| 1151 |
bfd_vma pc; |
| 1152 |
disassemble_info *info; |
| 1153 |
{
|
| 1154 |
if (info->mach == bfd_mach_i386_i386)
|
| 1155 |
return print_insn_x86 (pc, info, 1, 1); |
| 1156 |
else if (info->mach == bfd_mach_i386_i8086) |
| 1157 |
return print_insn_x86 (pc, info, 0, 0); |
| 1158 |
else
|
| 1159 |
abort (); |
| 1160 |
} |
| 1161 |
|
| 1162 |
int
|
| 1163 |
print_insn_x86 (pc, info, aflag, dflag) |
| 1164 |
bfd_vma pc; |
| 1165 |
disassemble_info *info; |
| 1166 |
int aflag;
|
| 1167 |
int dflag;
|
| 1168 |
{
|
| 1169 |
struct dis386 *dp;
|
| 1170 |
int i;
|
| 1171 |
int enter_instruction;
|
| 1172 |
char *first, *second, *third;
|
| 1173 |
int needcomma;
|
| 1174 |
unsigned char need_modrm; |
| 1175 |
|
| 1176 |
struct dis_private priv;
|
| 1177 |
bfd_byte *inbuf = priv.the_buffer; |
| 1178 |
|
| 1179 |
/* The output looks better if we put 5 bytes on a line, since that
|
| 1180 |
puts long word instructions on a single line. */
|
| 1181 |
info->bytes_per_line = 5;
|
| 1182 |
|
| 1183 |
info->private_data = (PTR) &priv; |
| 1184 |
priv.max_fetched = priv.the_buffer; |
| 1185 |
priv.insn_start = pc; |
| 1186 |
if (setjmp (priv.bailout) != 0) |
| 1187 |
/* Error return. */
|
| 1188 |
return -1; |
| 1189 |
|
| 1190 |
obuf[0] = 0; |
| 1191 |
op1out[0] = 0; |
| 1192 |
op2out[0] = 0; |
| 1193 |
op3out[0] = 0; |
| 1194 |
|
| 1195 |
op_index[0] = op_index[1] = op_index[2] = -1; |
| 1196 |
|
| 1197 |
the_info = info; |
| 1198 |
start_pc = pc; |
| 1199 |
start_codep = inbuf; |
| 1200 |
codep = inbuf; |
| 1201 |
|
| 1202 |
ckprefix (); |
| 1203 |
|
| 1204 |
FETCH_DATA (info, codep + 1);
|
| 1205 |
if (*codep == 0xc8) |
| 1206 |
enter_instruction = 1;
|
| 1207 |
else
|
| 1208 |
enter_instruction = 0;
|
| 1209 |
|
| 1210 |
obufp = obuf; |
| 1211 |
|
| 1212 |
if (prefixes & PREFIX_REPZ)
|
| 1213 |
oappend ("repz ");
|
| 1214 |
if (prefixes & PREFIX_REPNZ)
|
| 1215 |
oappend ("repnz ");
|
| 1216 |
if (prefixes & PREFIX_LOCK)
|
| 1217 |
oappend ("lock ");
|
| 1218 |
|
| 1219 |
if ((prefixes & PREFIX_FWAIT)
|
| 1220 |
&& ((*codep < 0xd8) || (*codep > 0xdf))) |
| 1221 |
{
|
| 1222 |
/* fwait not followed by floating point instruction */
|
| 1223 |
(*info->fprintf_func) (info->stream, "fwait");
|
| 1224 |
return (1); |
| 1225 |
} |
| 1226 |
|
| 1227 |
if (prefixes & PREFIX_DATA)
|
| 1228 |
dflag ^= 1;
|
| 1229 |
|
| 1230 |
if (prefixes & PREFIX_ADR)
|
| 1231 |
{
|
| 1232 |
aflag ^= 1;
|
| 1233 |
if (aflag)
|
| 1234 |
oappend ("addr32 ");
|
| 1235 |
else
|
| 1236 |
oappend ("addr16 ");
|
| 1237 |
} |
| 1238 |
|
| 1239 |
if (*codep == 0x0f) |
| 1240 |
{
|
| 1241 |
FETCH_DATA (info, codep + 2);
|
| 1242 |
dp = &dis386_twobyte[*++codep]; |
| 1243 |
need_modrm = twobyte_has_modrm[*codep]; |
| 1244 |
} |
| 1245 |
else
|
| 1246 |
{
|
| 1247 |
dp = &dis386[*codep]; |
| 1248 |
need_modrm = onebyte_has_modrm[*codep]; |
| 1249 |
} |
| 1250 |
codep++; |
| 1251 |
|
| 1252 |
if (need_modrm)
|
| 1253 |
{
|
| 1254 |
FETCH_DATA (info, codep + 1);
|
| 1255 |
mod = (*codep >> 6) & 3; |
| 1256 |
reg = (*codep >> 3) & 7; |
| 1257 |
rm = *codep & 7;
|
| 1258 |
} |
| 1259 |
|
| 1260 |
if (dp->name == NULL && dp->bytemode1 == FLOATCODE) |
| 1261 |
{
|
| 1262 |
dofloat (aflag, dflag); |
| 1263 |
} |
| 1264 |
else
|
| 1265 |
{
|
| 1266 |
if (dp->name == NULL) |
| 1267 |
dp = &grps[dp->bytemode1][reg]; |
| 1268 |
|
| 1269 |
putop (dp->name, aflag, dflag); |
| 1270 |
|
| 1271 |
obufp = op1out; |
| 1272 |
op_ad = 2;
|
| 1273 |
if (dp->op1)
|
| 1274 |
(*dp->op1)(dp->bytemode1, aflag, dflag); |
| 1275 |
|
| 1276 |
obufp = op2out; |
| 1277 |
op_ad = 1;
|
| 1278 |
if (dp->op2)
|
| 1279 |
(*dp->op2)(dp->bytemode2, aflag, dflag); |
| 1280 |
|
| 1281 |
obufp = op3out; |
| 1282 |
op_ad = 0;
|
| 1283 |
if (dp->op3)
|
| 1284 |
(*dp->op3)(dp->bytemode3, aflag, dflag); |
| 1285 |
} |
| 1286 |
|
| 1287 |
obufp = obuf + strlen (obuf); |
| 1288 |
for (i = strlen (obuf); i < 6; i++) |
| 1289 |
oappend (" ");
|
| 1290 |
oappend (" ");
|
| 1291 |
(*info->fprintf_func) (info->stream, "%s", obuf);
|
| 1292 |
|
| 1293 |
/* enter instruction is printed with operands in the
|
| 1294 |
* same order as the intel book; everything else
|
| 1295 |
* is printed in reverse order
|
| 1296 |
*/
|
| 1297 |
if (enter_instruction)
|
| 1298 |
{
|
| 1299 |
first = op1out; |
| 1300 |
second = op2out; |
| 1301 |
third = op3out; |
| 1302 |
op_ad = op_index[0];
|
| 1303 |
op_index[0] = op_index[2]; |
| 1304 |
op_index[2] = op_ad;
|
| 1305 |
} |
| 1306 |
else
|
| 1307 |
{
|
| 1308 |
first = op3out; |
| 1309 |
second = op2out; |
| 1310 |
third = op1out; |
| 1311 |
} |
| 1312 |
needcomma = 0;
|
| 1313 |
if (*first)
|
| 1314 |
{
|
| 1315 |
if (op_index[0] != -1) |
| 1316 |
(*info->print_address_func) (op_address[op_index[0]], info);
|
| 1317 |
else
|
| 1318 |
(*info->fprintf_func) (info->stream, "%s", first);
|
| 1319 |
needcomma = 1;
|
| 1320 |
} |
| 1321 |
if (*second)
|
| 1322 |
{
|
| 1323 |
if (needcomma)
|
| 1324 |
(*info->fprintf_func) (info->stream, ",");
|
| 1325 |
if (op_index[1] != -1) |
| 1326 |
(*info->print_address_func) (op_address[op_index[1]], info);
|
| 1327 |
else
|
| 1328 |
(*info->fprintf_func) (info->stream, "%s", second);
|
| 1329 |
needcomma = 1;
|
| 1330 |
} |
| 1331 |
if (*third)
|
| 1332 |
{
|
| 1333 |
if (needcomma)
|
| 1334 |
(*info->fprintf_func) (info->stream, ",");
|
| 1335 |
if (op_index[2] != -1) |
| 1336 |
(*info->print_address_func) (op_address[op_index[2]], info);
|
| 1337 |
else
|
| 1338 |
(*info->fprintf_func) (info->stream, "%s", third);
|
| 1339 |
} |
| 1340 |
return (codep - inbuf);
|
| 1341 |
} |
| 1342 |
|
| 1343 |
static char *float_mem[] = { |
| 1344 |
/* d8 */
|
| 1345 |
"fadds",
|
| 1346 |
"fmuls",
|
| 1347 |
"fcoms",
|
| 1348 |
"fcomps",
|
| 1349 |
"fsubs",
|
| 1350 |
"fsubrs",
|
| 1351 |
"fdivs",
|
| 1352 |
"fdivrs",
|
| 1353 |
/* d9 */
|
| 1354 |
"flds",
|
| 1355 |
"(bad)",
|
| 1356 |
"fsts",
|
| 1357 |
"fstps",
|
| 1358 |
"fldenv",
|
| 1359 |
"fldcw",
|
| 1360 |
"fNstenv",
|
| 1361 |
"fNstcw",
|
| 1362 |
/* da */
|
| 1363 |
"fiaddl",
|
| 1364 |
"fimull",
|
| 1365 |
"ficoml",
|
| 1366 |
"ficompl",
|
| 1367 |
"fisubl",
|
| 1368 |
"fisubrl",
|
| 1369 |
"fidivl",
|
| 1370 |
"fidivrl",
|
| 1371 |
/* db */
|
| 1372 |
"fildl",
|
| 1373 |
"(bad)",
|
| 1374 |
"fistl",
|
| 1375 |
"fistpl",
|
| 1376 |
"(bad)",
|
| 1377 |
"fldt",
|
| 1378 |
"(bad)",
|
| 1379 |
"fstpt",
|
| 1380 |
/* dc */
|
| 1381 |
"faddl",
|
| 1382 |
"fmull",
|
| 1383 |
"fcoml",
|
| 1384 |
"fcompl",
|
| 1385 |
"fsubl",
|
| 1386 |
"fsubrl",
|
| 1387 |
"fdivl",
|
| 1388 |
"fdivrl",
|
| 1389 |
/* dd */
|
| 1390 |
"fldl",
|
| 1391 |
"(bad)",
|
| 1392 |
"fstl",
|
| 1393 |
"fstpl",
|
| 1394 |
"frstor",
|
| 1395 |
"(bad)",
|
| 1396 |
"fNsave",
|
| 1397 |
"fNstsw",
|
| 1398 |
/* de */
|
| 1399 |
"fiadd",
|
| 1400 |
"fimul",
|
| 1401 |
"ficom",
|
| 1402 |
"ficomp",
|
| 1403 |
"fisub",
|
| 1404 |
"fisubr",
|
| 1405 |
"fidiv",
|
| 1406 |
"fidivr",
|
| 1407 |
/* df */
|
| 1408 |
"fild",
|
| 1409 |
"(bad)",
|
| 1410 |
"fist",
|
| 1411 |
"fistp",
|
| 1412 |
"fbld",
|
| 1413 |
"fildll",
|
| 1414 |
"fbstp",
|
| 1415 |
"fistpll",
|
| 1416 |
}; |
| 1417 |
|
| 1418 |
#define ST OP_ST, 0 |
| 1419 |
#define STi OP_STi, 0 |
| 1420 |
|
| 1421 |
#define FGRPd9_2 NULL, NULL, 0 |
| 1422 |
#define FGRPd9_4 NULL, NULL, 1 |
| 1423 |
#define FGRPd9_5 NULL, NULL, 2 |
| 1424 |
#define FGRPd9_6 NULL, NULL, 3 |
| 1425 |
#define FGRPd9_7 NULL, NULL, 4 |
| 1426 |
#define FGRPda_5 NULL, NULL, 5 |
| 1427 |
#define FGRPdb_4 NULL, NULL, 6 |
| 1428 |
#define FGRPde_3 NULL, NULL, 7 |
| 1429 |
#define FGRPdf_4 NULL, NULL, 8 |
| 1430 |
|
| 1431 |
static struct dis386 float_reg[][8] = { |
| 1432 |
/* d8 */
|
| 1433 |
{
|
| 1434 |
{ "fadd", ST, STi },
|
| 1435 |
{ "fmul", ST, STi },
|
| 1436 |
{ "fcom", STi },
|
| 1437 |
{ "fcomp", STi },
|
| 1438 |
{ "fsub", ST, STi },
|
| 1439 |
{ "fsubr", ST, STi },
|
| 1440 |
{ "fdiv", ST, STi },
|
| 1441 |
{ "fdivr", ST, STi },
|
| 1442 |
}, |
| 1443 |
/* d9 */
|
| 1444 |
{
|
| 1445 |
{ "fld", STi },
|
| 1446 |
{ "fxch", STi },
|
| 1447 |
{ FGRPd9_2 },
|
| 1448 |
{ "(bad)" },
|
| 1449 |
{ FGRPd9_4 },
|
| 1450 |
{ FGRPd9_5 },
|
| 1451 |
{ FGRPd9_6 },
|
| 1452 |
{ FGRPd9_7 },
|
| 1453 |
}, |
| 1454 |
/* da */
|
| 1455 |
{
|
| 1456 |
{ "fcmovb", ST, STi },
|
| 1457 |
{ "fcmove", ST, STi },
|
| 1458 |
{ "fcmovbe",ST, STi },
|
| 1459 |
{ "fcmovu", ST, STi },
|
| 1460 |
{ "(bad)" },
|
| 1461 |
{ FGRPda_5 },
|
| 1462 |
{ "(bad)" },
|
| 1463 |
{ "(bad)" },
|
| 1464 |
}, |
| 1465 |
/* db */
|
| 1466 |
{
|
| 1467 |
{ "fcmovnb",ST, STi },
|
| 1468 |
{ "fcmovne",ST, STi },
|
| 1469 |
{ "fcmovnbe",ST, STi },
|
| 1470 |
{ "fcmovnu",ST, STi },
|
| 1471 |
{ FGRPdb_4 },
|
| 1472 |
{ "fucomi", ST, STi },
|
| 1473 |
{ "fcomi", ST, STi },
|
| 1474 |
{ "(bad)" },
|
| 1475 |
}, |
| 1476 |
/* dc */
|
| 1477 |
{
|
| 1478 |
{ "fadd", STi, ST },
|
| 1479 |
{ "fmul", STi, ST },
|
| 1480 |
{ "(bad)" },
|
| 1481 |
{ "(bad)" },
|
| 1482 |
{ "fsub", STi, ST },
|
| 1483 |
{ "fsubr", STi, ST },
|
| 1484 |
{ "fdiv", STi, ST },
|
| 1485 |
{ "fdivr", STi, ST },
|
| 1486 |
}, |
| 1487 |
/* dd */
|
| 1488 |
{
|
| 1489 |
{ "ffree", STi },
|
| 1490 |
{ "(bad)" },
|
| 1491 |
{ "fst", STi },
|
| 1492 |
{ "fstp", STi },
|
| 1493 |
{ "fucom", STi },
|
| 1494 |
{ "fucomp", STi },
|
| 1495 |
{ "(bad)" },
|
| 1496 |
{ "(bad)" },
|
| 1497 |
}, |
| 1498 |
/* de */
|
| 1499 |
{
|
| 1500 |
{ "faddp", STi, ST },
|
| 1501 |
{ "fmulp", STi, ST },
|
| 1502 |
{ "(bad)" },
|
| 1503 |
{ FGRPde_3 },
|
| 1504 |
{ "fsubp", STi, ST },
|
| 1505 |
{ "fsubrp", STi, ST },
|
| 1506 |
{ "fdivp", STi, ST },
|
| 1507 |
{ "fdivrp", STi, ST },
|
| 1508 |
}, |
| 1509 |
/* df */
|
| 1510 |
{
|
| 1511 |
{ "(bad)" },
|
| 1512 |
{ "(bad)" },
|
| 1513 |
{ "(bad)" },
|
| 1514 |
{ "(bad)" },
|
| 1515 |
{ FGRPdf_4 },
|
| 1516 |
{ "fucomip",ST, STi },
|
| 1517 |
{ "fcomip", ST, STi },
|
| 1518 |
{ "(bad)" },
|
| 1519 |
}, |
| 1520 |
}; |
| 1521 |
|
| 1522 |
|
| 1523 |
static char *fgrps[][8] = { |
| 1524 |
/* d9_2 0 */
|
| 1525 |
{
|
| 1526 |
"fnop","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", |
| 1527 |
}, |
| 1528 |
|
| 1529 |
/* d9_4 1 */
|
| 1530 |
{
|
| 1531 |
"fchs","fabs","(bad)","(bad)","ftst","fxam","(bad)","(bad)", |
| 1532 |
}, |
| 1533 |
|
| 1534 |
/* d9_5 2 */
|
| 1535 |
{
|
| 1536 |
"fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","(bad)", |
| 1537 |
}, |
| 1538 |
|
| 1539 |
/* d9_6 3 */
|
| 1540 |
{
|
| 1541 |
"f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp", |
| 1542 |
}, |
| 1543 |
|
| 1544 |
/* d9_7 4 */
|
| 1545 |
{
|
| 1546 |
"fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos", |
| 1547 |
}, |
| 1548 |
|
| 1549 |
/* da_5 5 */
|
| 1550 |
{
|
| 1551 |
"(bad)","fucompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", |
| 1552 |
}, |
| 1553 |
|
| 1554 |
/* db_4 6 */
|
| 1555 |
{
|
| 1556 |
"feni(287 only)","fdisi(287 only)","fNclex","fNinit", |
| 1557 |
"fNsetpm(287 only)","(bad)","(bad)","(bad)", |
| 1558 |
}, |
| 1559 |
|
| 1560 |
/* de_3 7 */
|
| 1561 |
{
|
| 1562 |
"(bad)","fcompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", |
| 1563 |
}, |
| 1564 |
|
| 1565 |
/* df_4 8 */
|
| 1566 |
{
|
| 1567 |
"fNstsw","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", |
| 1568 |
}, |
| 1569 |
}; |
| 1570 |
|
| 1571 |
static void |
| 1572 |
dofloat (aflag, dflag) |
| 1573 |
int aflag;
|
| 1574 |
int dflag;
|
| 1575 |
{
|
| 1576 |
struct dis386 *dp;
|
| 1577 |
unsigned char floatop; |
| 1578 |
|
| 1579 |
floatop = codep[-1];
|
| 1580 |
|
| 1581 |
if (mod != 3) |
| 1582 |
{
|
| 1583 |
putop (float_mem[(floatop - 0xd8) * 8 + reg], aflag, dflag); |
| 1584 |
obufp = op1out; |
| 1585 |
OP_E (v_mode, aflag, dflag); |
| 1586 |
return;
|
| 1587 |
} |
| 1588 |
codep++; |
| 1589 |
|
| 1590 |
dp = &float_reg[floatop - 0xd8][reg];
|
| 1591 |
if (dp->name == NULL) |
| 1592 |
{
|
| 1593 |
putop (fgrps[dp->bytemode1][rm], aflag, dflag); |
| 1594 |
/* instruction fnstsw is only one with strange arg */
|
| 1595 |
if (floatop == 0xdf |
| 1596 |
&& FETCH_DATA (the_info, codep + 1)
|
| 1597 |
&& *codep == 0xe0)
|
| 1598 |
strcpy (op1out, "%eax");
|
| 1599 |
} |
| 1600 |
else
|
| 1601 |
{
|
| 1602 |
putop (dp->name, aflag, dflag); |
| 1603 |
obufp = op1out; |
| 1604 |
if (dp->op1)
|
| 1605 |
(*dp->op1)(dp->bytemode1, aflag, dflag); |
| 1606 |
obufp = op2out; |
| 1607 |
if (dp->op2)
|
| 1608 |
(*dp->op2)(dp->bytemode2, aflag, dflag); |
| 1609 |
} |
| 1610 |
} |
| 1611 |
|
| 1612 |
/* ARGSUSED */
|
| 1613 |
static int |
| 1614 |
OP_ST (ignore, aflag, dflag) |
| 1615 |
int ignore;
|
| 1616 |
int aflag;
|
| 1617 |
int dflag;
|
| 1618 |
{
|
| 1619 |
oappend ("%st");
|
| 1620 |
return (0); |
| 1621 |
} |
| 1622 |
|
| 1623 |
/* ARGSUSED */
|
| 1624 |
static int |
| 1625 |
OP_STi (ignore, aflag, dflag) |
| 1626 |
int ignore;
|
| 1627 |
int aflag;
|
| 1628 |
int dflag;
|
| 1629 |
{
|
| 1630 |
sprintf (scratchbuf, "%%st(%d)", rm);
|
| 1631 |
oappend (scratchbuf); |
| 1632 |
return (0); |
| 1633 |
} |
| 1634 |
|
| 1635 |
|
| 1636 |
/* capital letters in template are macros */
|
| 1637 |
static void |
| 1638 |
putop (template, aflag, dflag) |
| 1639 |
char *template;
|
| 1640 |
int aflag;
|
| 1641 |
int dflag;
|
| 1642 |
{
|
| 1643 |
char *p;
|
| 1644 |
|
| 1645 |
for (p = template; *p; p++)
|
| 1646 |
{
|
| 1647 |
switch (*p)
|
| 1648 |
{
|
| 1649 |
default:
|
| 1650 |
*obufp++ = *p; |
| 1651 |
break;
|
| 1652 |
case 'C': /* For jcxz/jecxz */ |
| 1653 |
if (aflag)
|
| 1654 |
*obufp++ = 'e';
|
| 1655 |
break;
|
| 1656 |
case 'N': |
| 1657 |
if ((prefixes & PREFIX_FWAIT) == 0) |
| 1658 |
*obufp++ = 'n';
|
| 1659 |
break;
|
| 1660 |
case 'S': |
| 1661 |
/* operand size flag */
|
| 1662 |
if (dflag)
|
| 1663 |
*obufp++ = 'l';
|
| 1664 |
else
|
| 1665 |
*obufp++ = 'w';
|
| 1666 |
break;
|
| 1667 |
case 'W': |
| 1668 |
/* operand size flag for cwtl, cbtw */
|
| 1669 |
if (dflag)
|
| 1670 |
*obufp++ = 'w';
|
| 1671 |
else
|
| 1672 |
*obufp++ = 'b';
|
| 1673 |
break;
|
| 1674 |
} |
| 1675 |
} |
| 1676 |
*obufp = 0;
|
| 1677 |
} |
| 1678 |
|
| 1679 |
static void |
| 1680 |
oappend (s) |
| 1681 |
char *s;
|
| 1682 |
{
|
| 1683 |
strcpy (obufp, s); |
| 1684 |
obufp += strlen (s); |
| 1685 |
*obufp = 0;
|
| 1686 |
} |
| 1687 |
|
| 1688 |
static void |
| 1689 |
append_prefix () |
| 1690 |
{
|
| 1691 |
if (prefixes & PREFIX_CS)
|
| 1692 |
oappend ("%cs:");
|
| 1693 |
if (prefixes & PREFIX_DS)
|
| 1694 |
oappend ("%ds:");
|
| 1695 |
if (prefixes & PREFIX_SS)
|
| 1696 |
oappend ("%ss:");
|
| 1697 |
if (prefixes & PREFIX_ES)
|
| 1698 |
oappend ("%es:");
|
| 1699 |
if (prefixes & PREFIX_FS)
|
| 1700 |
oappend ("%fs:");
|
| 1701 |
if (prefixes & PREFIX_GS)
|
| 1702 |
oappend ("%gs:");
|
| 1703 |
} |
| 1704 |
|
| 1705 |
static int |
| 1706 |
OP_indirE (bytemode, aflag, dflag) |
| 1707 |
int bytemode;
|
| 1708 |
int aflag;
|
| 1709 |
int dflag;
|
| 1710 |
{
|
| 1711 |
oappend ("*");
|
| 1712 |
return OP_E (bytemode, aflag, dflag);
|
| 1713 |
} |
| 1714 |
|
| 1715 |
static int |
| 1716 |
OP_E (bytemode, aflag, dflag) |
| 1717 |
int bytemode;
|
| 1718 |
int aflag;
|
| 1719 |
int dflag;
|
| 1720 |
{
|
| 1721 |
int disp;
|
| 1722 |
|
| 1723 |
/* skip mod/rm byte */
|
| 1724 |
codep++; |
| 1725 |
|
| 1726 |
if (mod == 3) |
| 1727 |
{
|
| 1728 |
switch (bytemode)
|
| 1729 |
{
|
| 1730 |
case b_mode:
|
| 1731 |
oappend (names8[rm]); |
| 1732 |
break;
|
| 1733 |
case w_mode:
|
| 1734 |
oappend (names16[rm]); |
| 1735 |
break;
|
| 1736 |
case v_mode:
|
| 1737 |
if (dflag)
|
| 1738 |
oappend (names32[rm]); |
| 1739 |
else
|
| 1740 |
oappend (names16[rm]); |
| 1741 |
break;
|
| 1742 |
default:
|
| 1743 |
oappend ("<bad dis table>");
|
| 1744 |
break;
|
| 1745 |
} |
| 1746 |
return 0; |
| 1747 |
} |
| 1748 |
|
| 1749 |
disp = 0;
|
| 1750 |
append_prefix (); |
| 1751 |
|
| 1752 |
if (aflag) /* 32 bit address mode */ |
| 1753 |
{
|
| 1754 |
int havesib;
|
| 1755 |
int havebase;
|
| 1756 |
int base;
|
| 1757 |
int index = 0; |
| 1758 |
int scale = 0; |
| 1759 |
|
| 1760 |
havesib = 0;
|
| 1761 |
havebase = 1;
|
| 1762 |
base = rm; |
| 1763 |
|
| 1764 |
if (base == 4) |
| 1765 |
{
|
| 1766 |
havesib = 1;
|
| 1767 |
FETCH_DATA (the_info, codep + 1);
|
| 1768 |
scale = (*codep >> 6) & 3; |
| 1769 |
index = (*codep >> 3) & 7; |
| 1770 |
base = *codep & 7;
|
| 1771 |
codep++; |
| 1772 |
} |
| 1773 |
|
| 1774 |
switch (mod)
|
| 1775 |
{
|
| 1776 |
case 0: |
| 1777 |
if (base == 5) |
| 1778 |
{
|
| 1779 |
havebase = 0;
|
| 1780 |
disp = get32 (); |
| 1781 |
} |
| 1782 |
break;
|
| 1783 |
case 1: |
| 1784 |
FETCH_DATA (the_info, codep + 1);
|
| 1785 |
disp = *codep++; |
| 1786 |
if ((disp & 0x80) != 0) |
| 1787 |
disp -= 0x100;
|
| 1788 |
break;
|
| 1789 |
case 2: |
| 1790 |
disp = get32 (); |
| 1791 |
break;
|
| 1792 |
} |
| 1793 |
|
| 1794 |
if (mod != 0 || base == 5) |
| 1795 |
{
|
| 1796 |
sprintf (scratchbuf, "0x%x", disp);
|
| 1797 |
oappend (scratchbuf); |
| 1798 |
} |
| 1799 |
|
| 1800 |
if (havebase || (havesib && (index != 4 || scale != 0))) |
| 1801 |
{
|
| 1802 |
oappend ("(");
|
| 1803 |
if (havebase)
|
| 1804 |
oappend (names32[base]); |
| 1805 |
if (havesib)
|
| 1806 |
{
|
| 1807 |
if (index != 4) |
| 1808 |
{
|
| 1809 |
sprintf (scratchbuf, ",%s", names32[index]);
|
| 1810 |
oappend (scratchbuf); |
| 1811 |
} |
| 1812 |
sprintf (scratchbuf, ",%d", 1 << scale); |
| 1813 |
oappend (scratchbuf); |
| 1814 |
} |
| 1815 |
oappend (")");
|
| 1816 |
} |
| 1817 |
} |
| 1818 |
else
|
| 1819 |
{ /* 16 bit address mode */
|
| 1820 |
switch (mod)
|
| 1821 |
{
|
| 1822 |
case 0: |
| 1823 |
if (rm == 6) |
| 1824 |
{
|
| 1825 |
disp = get16 (); |
| 1826 |
if ((disp & 0x8000) != 0) |
| 1827 |
disp -= 0x10000;
|
| 1828 |
} |
| 1829 |
break;
|
| 1830 |
case 1: |
| 1831 |
FETCH_DATA (the_info, codep + 1);
|
| 1832 |
disp = *codep++; |
| 1833 |
if ((disp & 0x80) != 0) |
| 1834 |
disp -= 0x100;
|
| 1835 |
break;
|
| 1836 |
case 2: |
| 1837 |
disp = get16 (); |
| 1838 |
if ((disp & 0x8000) != 0) |
| 1839 |
disp -= 0x10000;
|
| 1840 |
break;
|
| 1841 |
} |
| 1842 |
|
| 1843 |
if (mod != 0 || rm == 6) |
| 1844 |
{
|
| 1845 |
sprintf (scratchbuf, "0x%x", disp);
|
| 1846 |
oappend (scratchbuf); |
| 1847 |
} |
| 1848 |
|
| 1849 |
if (mod != 0 || rm != 6) |
| 1850 |
{
|
| 1851 |
oappend ("(");
|
| 1852 |
oappend (index16[rm]); |
| 1853 |
oappend (")");
|
| 1854 |
} |
| 1855 |
} |
| 1856 |
return 0; |
| 1857 |
} |
| 1858 |
|
| 1859 |
static int |
| 1860 |
OP_G (bytemode, aflag, dflag) |
| 1861 |
int bytemode;
|
| 1862 |
int aflag;
|
| 1863 |
int dflag;
|
| 1864 |
{
|
| 1865 |
switch (bytemode)
|
| 1866 |
{
|
| 1867 |
case b_mode:
|
| 1868 |
oappend (names8[reg]); |
| 1869 |
break;
|
| 1870 |
case w_mode:
|
| 1871 |
oappend (names16[reg]); |
| 1872 |
break;
|
| 1873 |
case d_mode:
|
| 1874 |
oappend (names32[reg]); |
| 1875 |
break;
|
| 1876 |
case v_mode:
|
| 1877 |
if (dflag)
|
| 1878 |
oappend (names32[reg]); |
| 1879 |
else
|
| 1880 |
oappend (names16[reg]); |
| 1881 |
break;
|
| 1882 |
default:
|
| 1883 |
oappend ("<internal disassembler error>");
|
| 1884 |
break;
|
| 1885 |
} |
| 1886 |
return (0); |
| 1887 |
} |
| 1888 |
|
| 1889 |
static int |
| 1890 |
get32 () |
| 1891 |
{
|
| 1892 |
int x = 0; |
| 1893 |
|
| 1894 |
FETCH_DATA (the_info, codep + 4);
|
| 1895 |
x = *codep++ & 0xff;
|
| 1896 |
x |= (*codep++ & 0xff) << 8; |
| 1897 |
x |= (*codep++ & 0xff) << 16; |
| 1898 |
x |= (*codep++ & 0xff) << 24; |
| 1899 |
return (x);
|
| 1900 |
} |
| 1901 |
|
| 1902 |
static int |
| 1903 |
get16 () |
| 1904 |
{
|
| 1905 |
int x = 0; |
| 1906 |
|
| 1907 |
FETCH_DATA (the_info, codep + 2);
|
| 1908 |
x = *codep++ & 0xff;
|
| 1909 |
x |= (*codep++ & 0xff) << 8; |
| 1910 |
return (x);
|
| 1911 |
} |
| 1912 |
|
| 1913 |
static void |
| 1914 |
set_op (op) |
| 1915 |
int op;
|
| 1916 |
{
|
| 1917 |
op_index[op_ad] = op_ad; |
| 1918 |
op_address[op_ad] = op; |
| 1919 |
} |
| 1920 |
|
| 1921 |
static int |
| 1922 |
OP_REG (code, aflag, dflag) |
| 1923 |
int code;
|
| 1924 |
int aflag;
|
| 1925 |
int dflag;
|
| 1926 |
{
|
| 1927 |
char *s;
|
| 1928 |
|
| 1929 |
switch (code)
|
| 1930 |
{
|
| 1931 |
case indir_dx_reg: s = "(%dx)"; break; |
| 1932 |
case ax_reg: case cx_reg: case dx_reg: case bx_reg: |
| 1933 |
case sp_reg: case bp_reg: case si_reg: case di_reg: |
| 1934 |
s = names16[code - ax_reg]; |
| 1935 |
break;
|
| 1936 |
case es_reg: case ss_reg: case cs_reg: |
| 1937 |
case ds_reg: case fs_reg: case gs_reg: |
| 1938 |
s = names_seg[code - es_reg]; |
| 1939 |
break;
|
| 1940 |
case al_reg: case ah_reg: case cl_reg: case ch_reg: |
| 1941 |
case dl_reg: case dh_reg: case bl_reg: case bh_reg: |
| 1942 |
s = names8[code - al_reg]; |
| 1943 |
break;
|
| 1944 |
case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg: |
| 1945 |
case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg: |
| 1946 |
if (dflag)
|
| 1947 |
s = names32[code - eAX_reg]; |
| 1948 |
else
|
| 1949 |
s = names16[code - eAX_reg]; |
| 1950 |
break;
|
| 1951 |
default:
|
| 1952 |
s = "<internal disassembler error>";
|
| 1953 |
break;
|
| 1954 |
} |
| 1955 |
oappend (s); |
| 1956 |
return (0); |
| 1957 |
} |
| 1958 |
|
| 1959 |
static int |
| 1960 |
OP_I (bytemode, aflag, dflag) |
| 1961 |
int bytemode;
|
| 1962 |
int aflag;
|
| 1963 |
int dflag;
|
| 1964 |
{
|
| 1965 |
int op;
|
| 1966 |
|
| 1967 |
switch (bytemode)
|
| 1968 |
{
|
| 1969 |
case b_mode:
|
| 1970 |
FETCH_DATA (the_info, codep + 1);
|
| 1971 |
op = *codep++ & 0xff;
|
| 1972 |
break;
|
| 1973 |
case v_mode:
|
| 1974 |
if (dflag)
|
| 1975 |
op = get32 (); |
| 1976 |
else
|
| 1977 |
op = get16 (); |
| 1978 |
break;
|
| 1979 |
case w_mode:
|
| 1980 |
op = get16 (); |
| 1981 |
break;
|
| 1982 |
default:
|
| 1983 |
oappend ("<internal disassembler error>");
|
| 1984 |
return (0); |
| 1985 |
} |
| 1986 |
sprintf (scratchbuf, "$0x%x", op);
|
| 1987 |
oappend (scratchbuf); |
| 1988 |
return (0); |
| 1989 |
} |
| 1990 |
|
| 1991 |
static int |
| 1992 |
OP_sI (bytemode, aflag, dflag) |
| 1993 |
int bytemode;
|
| 1994 |
int aflag;
|
| 1995 |
int dflag;
|
| 1996 |
{
|
| 1997 |
int op;
|
| 1998 |
|
| 1999 |
switch (bytemode)
|
| 2000 |
{
|
| 2001 |
case b_mode:
|
| 2002 |
FETCH_DATA (the_info, codep + 1);
|
| 2003 |
op = *codep++; |
| 2004 |
if ((op & 0x80) != 0) |
| 2005 |
op -= 0x100;
|
| 2006 |
break;
|
| 2007 |
case v_mode:
|
| 2008 |
if (dflag)
|
| 2009 |
op = get32 (); |
| 2010 |
else
|
| 2011 |
{
|
| 2012 |
op = get16(); |
| 2013 |
if ((op & 0x8000) != 0) |
| 2014 |
op -= 0x10000;
|
| 2015 |
} |
| 2016 |
break;
|
| 2017 |
case w_mode:
|
| 2018 |
op = get16 (); |
| 2019 |
if ((op & 0x8000) != 0) |
| 2020 |
op -= 0x10000;
|
| 2021 |
break;
|
| 2022 |
default:
|
| 2023 |
oappend ("<internal disassembler error>");
|
| 2024 |
return (0); |
| 2025 |
} |
| 2026 |
sprintf (scratchbuf, "$0x%x", op);
|
| 2027 |
oappend (scratchbuf); |
| 2028 |
return (0); |
| 2029 |
} |
| 2030 |
|
| 2031 |
static int |
| 2032 |
OP_J (bytemode, aflag, dflag) |
| 2033 |
int bytemode;
|
| 2034 |
int aflag;
|
| 2035 |
int dflag;
|
| 2036 |
{
|
| 2037 |
int disp;
|
| 2038 |
int mask = -1; |
| 2039 |
|
| 2040 |
switch (bytemode)
|
| 2041 |
{
|
| 2042 |
case b_mode:
|
| 2043 |
FETCH_DATA (the_info, codep + 1);
|
| 2044 |
disp = *codep++; |
| 2045 |
if ((disp & 0x80) != 0) |
| 2046 |
disp -= 0x100;
|
| 2047 |
break;
|
| 2048 |
case v_mode:
|
| 2049 |
if (dflag)
|
| 2050 |
disp = get32 (); |
| 2051 |
else
|
| 2052 |
{
|
| 2053 |
disp = get16 (); |
| 2054 |
if ((disp & 0x8000) != 0) |
| 2055 |
disp -= 0x10000;
|
| 2056 |
/* for some reason, a data16 prefix on a jump instruction
|
| 2057 |
means that the pc is masked to 16 bits after the
|
| 2058 |
displacement is added! */
|
| 2059 |
mask = 0xffff;
|
| 2060 |
} |
| 2061 |
break;
|
| 2062 |
default:
|
| 2063 |
oappend ("<internal disassembler error>");
|
| 2064 |
return (0); |
| 2065 |
} |
| 2066 |
disp = (start_pc + codep - start_codep + disp) & mask; |
| 2067 |
set_op (disp); |
| 2068 |
sprintf (scratchbuf, "0x%x", disp);
|
| 2069 |
oappend (scratchbuf); |
| 2070 |
return (0); |
| 2071 |
} |
| 2072 |
|
| 2073 |
/* ARGSUSED */
|
| 2074 |
static int |
| 2075 |
OP_SEG (dummy, aflag, dflag) |
| 2076 |
int dummy;
|
| 2077 |
int aflag;
|
| 2078 |
int dflag;
|
| 2079 |
{
|
| 2080 |
static char *sreg[] = { |
| 2081 |
"%es","%cs","%ss","%ds","%fs","%gs","%?","%?", |
| 2082 |
}; |
| 2083 |
|
| 2084 |
oappend (sreg[reg]); |
| 2085 |
return (0); |
| 2086 |
} |
| 2087 |
|
| 2088 |
static int |
| 2089 |
OP_DIR (size, aflag, dflag) |
| 2090 |
int size;
|
| 2091 |
int aflag;
|
| 2092 |
int dflag;
|
| 2093 |
{
|
| 2094 |
int seg, offset;
|
| 2095 |
|
| 2096 |
switch (size)
|
| 2097 |
{
|
| 2098 |
case lptr:
|
| 2099 |
if (aflag)
|
| 2100 |
{
|
| 2101 |
offset = get32 (); |
| 2102 |
seg = get16 (); |
| 2103 |
} |
| 2104 |
else
|
| 2105 |
{
|
| 2106 |
offset = get16 (); |
| 2107 |
seg = get16 (); |
| 2108 |
} |
| 2109 |
sprintf (scratchbuf, "0x%x,0x%x", seg, offset);
|
| 2110 |
oappend (scratchbuf); |
| 2111 |
break;
|
| 2112 |
case v_mode:
|
| 2113 |
if (aflag)
|
| 2114 |
offset = get32 (); |
| 2115 |
else
|
| 2116 |
{
|
| 2117 |
offset = get16 (); |
| 2118 |
if ((offset & 0x8000) != 0) |
| 2119 |
offset -= 0x10000;
|
| 2120 |
} |
| 2121 |
|
| 2122 |
offset = start_pc + codep - start_codep + offset; |
| 2123 |
set_op (offset); |
| 2124 |
sprintf (scratchbuf, "0x%x", offset);
|
| 2125 |
oappend (scratchbuf); |
| 2126 |
break;
|
| 2127 |
default:
|
| 2128 |
oappend ("<internal disassembler error>");
|
| 2129 |
break;
|
| 2130 |
} |
| 2131 |
return (0); |
| 2132 |
} |
| 2133 |
|
| 2134 |
/* ARGSUSED */
|
| 2135 |
static int |
| 2136 |
OP_OFF (bytemode, aflag, dflag) |
| 2137 |
int bytemode;
|
| 2138 |
int aflag;
|
| 2139 |
int dflag;
|
| 2140 |
{
|
| 2141 |
int off;
|
| 2142 |
|
| 2143 |
append_prefix (); |
| 2144 |
|
| 2145 |
if (aflag)
|
| 2146 |
off = get32 (); |
| 2147 |
else
|
| 2148 |
off = get16 (); |
| 2149 |
|
| 2150 |
sprintf (scratchbuf, "0x%x", off);
|
| 2151 |
oappend (scratchbuf); |
| 2152 |
return (0); |
| 2153 |
} |
| 2154 |
|
| 2155 |
/* ARGSUSED */
|
| 2156 |
static int |
| 2157 |
OP_ESDI (dummy, aflag, dflag) |
| 2158 |
int dummy;
|
| 2159 |
int aflag;
|
| 2160 |
int dflag;
|
| 2161 |
{
|
| 2162 |
oappend ("%es:(");
|
| 2163 |
oappend (aflag ? "%edi" : "%di"); |
| 2164 |
oappend (")");
|
| 2165 |
return (0); |
| 2166 |
} |
| 2167 |
|
| 2168 |
/* ARGSUSED */
|
| 2169 |
static int |
| 2170 |
OP_DSSI (dummy, aflag, dflag) |
| 2171 |
int dummy;
|
| 2172 |
int aflag;
|
| 2173 |
int dflag;
|
| 2174 |
{
|
| 2175 |
if ((prefixes
|
| 2176 |
& (PREFIX_CS |
| 2177 |
| PREFIX_DS |
| 2178 |
| PREFIX_SS |
| 2179 |
| PREFIX_ES |
| 2180 |
| PREFIX_FS |
| 2181 |
| PREFIX_GS)) == 0)
|
| 2182 |
prefixes |= PREFIX_DS; |
| 2183 |
append_prefix (); |
| 2184 |
oappend ("(");
|
| 2185 |
oappend (aflag ? "%esi" : "%si"); |
| 2186 |
oappend (")");
|
| 2187 |
return (0); |
| 2188 |
} |
| 2189 |
|
| 2190 |
#if 0
|
| 2191 |
/* Not used. */
|
| 2192 |
|
| 2193 |
/* ARGSUSED */
|
| 2194 |
static int
|
| 2195 |
OP_ONE (dummy, aflag, dflag)
|
| 2196 |
int dummy;
|
| 2197 |
int aflag;
|
| 2198 |
int dflag;
|
| 2199 |
{
|
| 2200 |
oappend ("1");
|
| 2201 |
return (0);
|
| 2202 |
}
|
| 2203 |
|
| 2204 |
#endif
|
| 2205 |
|
| 2206 |
/* ARGSUSED */
|
| 2207 |
static int |
| 2208 |
OP_C (dummy, aflag, dflag) |
| 2209 |
int dummy;
|
| 2210 |
int aflag;
|
| 2211 |
int dflag;
|
| 2212 |
{
|
| 2213 |
codep++; /* skip mod/rm */
|
| 2214 |
sprintf (scratchbuf, "%%cr%d", reg);
|
| 2215 |
oappend (scratchbuf); |
| 2216 |
return (0); |
| 2217 |
} |
| 2218 |
|
| 2219 |
/* ARGSUSED */
|
| 2220 |
static int |
| 2221 |
OP_D (dummy, aflag, dflag) |
| 2222 |
int dummy;
|
| 2223 |
int aflag;
|
| 2224 |
int dflag;
|
| 2225 |
{
|
| 2226 |
codep++; /* skip mod/rm */
|
| 2227 |
sprintf (scratchbuf, "%%db%d", reg);
|
| 2228 |
oappend (scratchbuf); |
| 2229 |
return (0); |
| 2230 |
} |
| 2231 |
|
| 2232 |
/* ARGSUSED */
|
| 2233 |
static int |
| 2234 |
OP_T (dummy, aflag, dflag) |
| 2235 |
int dummy;
|
| 2236 |
int aflag;
|
| 2237 |
int dflag;
|
| 2238 |
{
|
| 2239 |
codep++; /* skip mod/rm */
|
| 2240 |
sprintf (scratchbuf, "%%tr%d", reg);
|
| 2241 |
oappend (scratchbuf); |
| 2242 |
return (0); |
| 2243 |
} |
| 2244 |
|
| 2245 |
static int |
| 2246 |
OP_rm (bytemode, aflag, dflag) |
| 2247 |
int bytemode;
|
| 2248 |
int aflag;
|
| 2249 |
int dflag;
|
| 2250 |
{
|
| 2251 |
switch (bytemode)
|
| 2252 |
{
|
| 2253 |
case d_mode:
|
| 2254 |
oappend (names32[rm]); |
| 2255 |
break;
|
| 2256 |
case w_mode:
|
| 2257 |
oappend (names16[rm]); |
| 2258 |
break;
|
| 2259 |
} |
| 2260 |
return (0); |
| 2261 |
} |
| 2262 |
|
| 2263 |
static int |
| 2264 |
OP_MMX (bytemode, aflag, dflag) |
| 2265 |
int bytemode;
|
| 2266 |
int aflag;
|
| 2267 |
int dflag;
|
| 2268 |
{
|
| 2269 |
sprintf (scratchbuf, "%%mm%d", reg);
|
| 2270 |
oappend (scratchbuf); |
| 2271 |
return 0; |
| 2272 |
} |
| 2273 |
|
| 2274 |
static int |
| 2275 |
OP_EM (bytemode, aflag, dflag) |
| 2276 |
int bytemode;
|
| 2277 |
int aflag;
|
| 2278 |
int dflag;
|
| 2279 |
{
|
| 2280 |
if (mod != 3) |
| 2281 |
return OP_E (bytemode, aflag, dflag);
|
| 2282 |
|
| 2283 |
codep++; |
| 2284 |
sprintf (scratchbuf, "%%mm%d", rm);
|
| 2285 |
oappend (scratchbuf); |
| 2286 |
return 0; |
| 2287 |
} |
| 2288 |
|
| 2289 |
static int |
| 2290 |
OP_MS (bytemode, aflag, dflag) |
| 2291 |
int bytemode;
|
| 2292 |
int aflag;
|
| 2293 |
int dflag;
|
| 2294 |
{
|
| 2295 |
++codep; |
| 2296 |
sprintf (scratchbuf, "%%mm%d", rm);
|
| 2297 |
oappend (scratchbuf); |
| 2298 |
return 0; |
| 2299 |
} |