diff options
Diffstat (limited to 'i386-dis.c')
| -rw-r--r-- | i386-dis.c | 1847 |
1 files changed, 1286 insertions, 561 deletions
diff --git a/i386-dis.c b/i386-dis.c index 20de5674e6..56618b234b 100644 --- a/i386-dis.c +++ b/i386-dis.c @@ -1,45 +1,41 @@ /* Print i386 instructions for GDB, the GNU debugger. Copyright 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999, - 2001 - Free Software Foundation, Inc. + 2001, 2002, 2003, 2004, 2005 Free Software Foundation, Inc. -This file is part of GDB. + This file is part of GDB. -This program is 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 2 of the License, or -(at your option) any later version. + This program is 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 2 of the License, or + (at your option) any later version. -This program is 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. + This program is 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 this program; if not, write to the Free Software -Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ -/* - * 80386 instruction printer by Pace Willisson (pace@prep.ai.mit.edu) - * July 1988 - * modified by John Hassey (hassey@dg-rtp.dg.com) - * x86-64 support added by Jan Hubicka (jh@suse.cz) - */ +/* 80386 instruction printer by Pace Willisson (pace@prep.ai.mit.edu) + July 1988 + modified by John Hassey (hassey@dg-rtp.dg.com) + x86-64 support added by Jan Hubicka (jh@suse.cz) + VIA PadLock support by Michal Ludvig (mludvig@suse.cz). */ -/* - * The main tables describing the instructions is essentially a copy - * of the "Opcode Map" chapter (Appendix A) of the Intel 80386 - * Programmers Manual. Usually, there is a capital letter, followed - * by a small letter. The capital letter tell the addressing mode, - * and the small letter tells about the operand size. Refer to - * the Intel manual for details. - */ +/* The main tables describing the instructions is essentially a copy + of the "Opcode Map" chapter (Appendix A) of the Intel 80386 + Programmers Manual. Usually, there is a capital letter, followed + by a small letter. The capital letter tell the addressing mode, + and the small letter tells about the operand size. Refer to + the Intel manual for details. */ #include <stdlib.h> #include "dis-asm.h" #include "qemu-common.h" -#define MAXLEN 20 +#define MAXLEN 15 #include <setjmp.h> @@ -49,53 +45,63 @@ Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. #define UNIXWARE_COMPAT 1 #endif -static int fetch_data PARAMS ((struct disassemble_info *, bfd_byte *)); -static void ckprefix PARAMS ((void)); -static const char *prefix_name PARAMS ((int, int)); -static int print_insn PARAMS ((bfd_vma, disassemble_info *)); -static void dofloat PARAMS ((int)); -static void OP_ST PARAMS ((int, int)); -static void OP_STi PARAMS ((int, int)); -static int putop PARAMS ((const char *, int)); -static void oappend PARAMS ((const char *)); -static void append_seg PARAMS ((void)); -static void OP_indirE PARAMS ((int, int)); -static void print_operand_value (char *buf, size_t bufsize, int hex, - bfd_vma disp); -static void OP_E PARAMS ((int, int)); -static void OP_G PARAMS ((int, int)); -static bfd_vma get64 PARAMS ((void)); -static bfd_signed_vma get32 PARAMS ((void)); -static bfd_signed_vma get32s PARAMS ((void)); -static int get16 PARAMS ((void)); -static void set_op PARAMS ((bfd_vma, int)); -static void OP_REG PARAMS ((int, int)); -static void OP_IMREG PARAMS ((int, int)); -static void OP_I PARAMS ((int, int)); -static void OP_I64 PARAMS ((int, int)); -static void OP_sI PARAMS ((int, int)); -static void OP_J PARAMS ((int, int)); -static void OP_SEG PARAMS ((int, int)); -static void OP_DIR PARAMS ((int, int)); -static void OP_OFF PARAMS ((int, int)); -static void OP_OFF64 PARAMS ((int, int)); -static void ptr_reg PARAMS ((int, int)); -static void OP_ESreg PARAMS ((int, int)); -static void OP_DSreg PARAMS ((int, int)); -static void OP_C PARAMS ((int, int)); -static void OP_D PARAMS ((int, int)); -static void OP_T PARAMS ((int, int)); -static void OP_Rd PARAMS ((int, int)); -static void OP_MMX PARAMS ((int, int)); -static void OP_XMM PARAMS ((int, int)); -static void OP_EM PARAMS ((int, int)); -static void OP_EX PARAMS ((int, int)); -static void OP_MS PARAMS ((int, int)); -static void OP_XS PARAMS ((int, int)); -static void OP_3DNowSuffix PARAMS ((int, int)); -static void OP_SIMD_Suffix PARAMS ((int, int)); -static void SIMD_Fixup PARAMS ((int, int)); -static void BadOp PARAMS ((void)); +static int fetch_data (struct disassemble_info *, bfd_byte *); +static void ckprefix (void); +static const char *prefix_name (int, int); +static int print_insn (bfd_vma, disassemble_info *); +static void dofloat (int); +static void OP_ST (int, int); +static void OP_STi (int, int); +static int putop (const char *, int); +static void oappend (const char *); +static void append_seg (void); +static void OP_indirE (int, int); +static void print_operand_value (char *buf, size_t bufsize, int hex, bfd_vma disp); +static void OP_E (int, int); +static void OP_G (int, int); +static bfd_vma get64 (void); +static bfd_signed_vma get32 (void); +static bfd_signed_vma get32s (void); +static int get16 (void); +static void set_op (bfd_vma, int); +static void OP_REG (int, int); +static void OP_IMREG (int, int); +static void OP_I (int, int); +static void OP_I64 (int, int); +static void OP_sI (int, int); +static void OP_J (int, int); +static void OP_SEG (int, int); +static void OP_DIR (int, int); +static void OP_OFF (int, int); +static void OP_OFF64 (int, int); +static void ptr_reg (int, int); +static void OP_ESreg (int, int); +static void OP_DSreg (int, int); +static void OP_C (int, int); +static void OP_D (int, int); +static void OP_T (int, int); +static void OP_Rd (int, int); +static void OP_MMX (int, int); +static void OP_XMM (int, int); +static void OP_EM (int, int); +static void OP_EX (int, int); +static void OP_MS (int, int); +static void OP_XS (int, int); +static void OP_M (int, int); +static void OP_VMX (int, int); +static void OP_0fae (int, int); +static void OP_0f07 (int, int); +static void NOP_Fixup (int, int); +static void OP_3DNowSuffix (int, int); +static void OP_SIMD_Suffix (int, int); +static void SIMD_Fixup (int, int); +static void PNI_Fixup (int, int); +static void SVME_Fixup (int, int); +static void INVLPG_Fixup (int, int); +static void BadOp (void); +static void SEG_Fixup (int, int); +static void VMX_Fixup (int, int); +static void REP_Fixup (int, int); struct dis_private { /* Points to first byte not fetched. */ @@ -110,8 +116,14 @@ struct dis_private { when we can. */ #define FWAIT_OPCODE (0x9b) -/* Set to 1 for 64bit mode disassembly. */ -static int mode_64bit; +enum address_mode +{ + mode_16bit, + mode_32bit, + mode_64bit +}; + +static enum address_mode address_mode; /* Flags for the prefixes for the current instruction. See below. */ static int prefixes; @@ -162,24 +174,25 @@ static int used_prefixes; ? 1 : fetch_data ((info), (addr))) static int -fetch_data (info, addr) - struct disassemble_info *info; - bfd_byte *addr; +fetch_data (struct disassemble_info *info, bfd_byte *addr) { int status; struct dis_private *priv = (struct dis_private *) info->private_data; bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer); - status = (*info->read_memory_func) (start, - priv->max_fetched, - addr - priv->max_fetched, - info); + if (addr <= priv->the_buffer + MAXLEN) + status = (*info->read_memory_func) (start, + priv->max_fetched, + addr - priv->max_fetched, + info); + else + status = -1; if (status != 0) { /* If we did manage to read at least one byte, then - print_insn_i386 will do something sensible. Otherwise, print - an error. We do that here because this is where we know - STATUS. */ + print_insn_i386 will do something sensible. Otherwise, print + an error. We do that here because this is where we know + STATUS. */ if (priv->max_fetched == priv->the_buffer) (*info->memory_error_func) (status, start, info); longjmp (priv->bailout, 1); @@ -194,15 +207,22 @@ fetch_data (info, addr) #define Eb OP_E, b_mode #define Ev OP_E, v_mode #define Ed OP_E, d_mode -#define indirEb OP_indirE, b_mode -#define indirEv OP_indirE, v_mode +#define Eq OP_E, q_mode +#define Edq OP_E, dq_mode +#define Edqw OP_E, dqw_mode +#define indirEv OP_indirE, stack_v_mode +#define indirEp OP_indirE, f_mode +#define stackEv OP_E, stack_v_mode +#define Em OP_E, m_mode #define Ew OP_E, w_mode #define Ma OP_E, v_mode -#define M OP_E, 0 /* lea, lgdt, etc. */ -#define Mp OP_E, 0 /* 32 or 48 bit memory operand for LDS, LES etc */ +#define M OP_M, 0 /* lea, lgdt, etc. */ +#define Mp OP_M, f_mode /* 32 or 48 bit memory operand for LDS, LES etc */ #define Gb OP_G, b_mode #define Gv OP_G, v_mode #define Gd OP_G, d_mode +#define Gdq OP_G, dq_mode +#define Gm OP_G, m_mode #define Gw OP_G, w_mode #define Rd OP_Rd, d_mode #define Rm OP_Rd, m_mode @@ -212,11 +232,13 @@ fetch_data (info, addr) #define Iq OP_I, q_mode #define Iv64 OP_I64, v_mode #define Iw OP_I, w_mode +#define I1 OP_I, const_1_mode #define Jb OP_J, b_mode #define Jv OP_J, v_mode #define Cm OP_C, m_mode #define Dm OP_D, m_mode #define Td OP_T, d_mode +#define Sv SEG_Fixup, v_mode #define RMeAX OP_REG, eAX_reg #define RMeBX OP_REG, eBX_reg @@ -255,7 +277,6 @@ fetch_data (info, addr) #define eSI OP_IMREG, eSI_reg #define eDI OP_IMREG, eDI_reg #define AL OP_IMREG, al_reg -#define AL OP_IMREG, al_reg #define CL OP_IMREG, cl_reg #define DL OP_IMREG, dl_reg #define BL OP_IMREG, bl_reg @@ -269,10 +290,8 @@ fetch_data (info, addr) #define Sw OP_SEG, w_mode #define Ap OP_DIR, 0 -#define Ob OP_OFF, b_mode -#define Ob64 OP_OFF64, b_mode -#define Ov OP_OFF, v_mode -#define Ov64 OP_OFF64, v_mode +#define Ob OP_OFF64, b_mode +#define Ov OP_OFF64, v_mode #define Xb OP_DSreg, eSI_reg #define Xv OP_DSreg, eSI_reg #define Yb OP_ESreg, eDI_reg @@ -292,10 +311,19 @@ fetch_data (info, addr) #define EX OP_EX, v_mode #define MS OP_MS, v_mode #define XS OP_XS, v_mode -#define None OP_E, 0 +#define VM OP_VMX, q_mode #define OPSUF OP_3DNowSuffix, 0 #define OPSIMD OP_SIMD_Suffix, 0 +/* Used handle "rep" prefix for string instructions. */ +#define Xbr REP_Fixup, eSI_reg +#define Xvr REP_Fixup, eSI_reg +#define Ybr REP_Fixup, eDI_reg +#define Yvr REP_Fixup, eDI_reg +#define indirDXr REP_Fixup, indir_dx_reg +#define ALr REP_Fixup, al_reg +#define eAXr REP_Fixup, eAX_reg + #define cond_jump_flag NULL, cond_jump_mode #define loop_jcxz_flag NULL, loop_jcxz_mode @@ -309,10 +337,16 @@ fetch_data (info, addr) #define w_mode 3 /* word operand */ #define d_mode 4 /* double word operand */ #define q_mode 5 /* quad word operand */ -#define x_mode 6 -#define m_mode 7 /* d_mode in 32bit, q_mode in 64bit mode. */ -#define cond_jump_mode 8 -#define loop_jcxz_mode 9 +#define t_mode 6 /* ten-byte operand */ +#define x_mode 7 /* 16-byte XMM operand */ +#define m_mode 8 /* d_mode in 32bit, q_mode in 64bit mode. */ +#define cond_jump_mode 9 +#define loop_jcxz_mode 10 +#define dq_mode 11 /* operand size depends on REX prefixes. */ +#define dqw_mode 12 /* registers like dq_mode, memory like w_mode. */ +#define f_mode 13 /* 4- or 6-byte pointer operand */ +#define const_1_mode 14 +#define stack_v_mode 15 /* v_mode for stack-related opcodes. */ #define es_reg 100 #define cs_reg 101 @@ -363,6 +397,7 @@ fetch_data (info, addr) #define USE_GROUPS 2 #define USE_PREFIX_USER_TABLE 3 #define X86_64_SPECIAL 4 +#define IS_3BYTE_OPCODE 5 #define FLOAT NULL, NULL, FLOATCODE, NULL, 0, NULL, 0 @@ -389,6 +424,8 @@ fetch_data (info, addr) #define GRP13 NULL, NULL, USE_GROUPS, NULL, 20, NULL, 0 #define GRP14 NULL, NULL, USE_GROUPS, NULL, 21, NULL, 0 #define GRPAMD NULL, NULL, USE_GROUPS, NULL, 22, NULL, 0 +#define GRPPADLCK1 NULL, NULL, USE_GROUPS, NULL, 23, NULL, 0 +#define GRPPADLCK2 NULL, NULL, USE_GROUPS, NULL, 24, NULL, 0 #define PREGRP0 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 0, NULL, 0 #define PREGRP1 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 1, NULL, 0 @@ -417,10 +454,19 @@ fetch_data (info, addr) #define PREGRP24 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 24, NULL, 0 #define PREGRP25 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 25, NULL, 0 #define PREGRP26 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 26, NULL, 0 +#define PREGRP27 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 27, NULL, 0 +#define PREGRP28 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 28, NULL, 0 +#define PREGRP29 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 29, NULL, 0 +#define PREGRP30 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 30, NULL, 0 +#define PREGRP31 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 31, NULL, 0 +#define PREGRP32 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 32, NULL, 0 #define X86_64_0 NULL, NULL, X86_64_SPECIAL, NULL, 0, NULL, 0 -typedef void (*op_rtn) PARAMS ((int bytemode, int sizeflag)); +#define THREE_BYTE_0 NULL, NULL, IS_3BYTE_OPCODE, NULL, 0, NULL, 0 +#define THREE_BYTE_1 NULL, NULL, IS_3BYTE_OPCODE, NULL, 1, NULL, 0 + +typedef void (*op_rtn) (int bytemode, int sizeflag); struct dis386 { const char *name; @@ -435,9 +481,14 @@ struct dis386 { /* Upper case letters in the instruction names here are macros. 'A' => print 'b' if no register operands or suffix_always is true 'B' => print 'b' if suffix_always is true + 'C' => print 's' or 'l' ('w' or 'd' in Intel mode) depending on operand + . size prefix 'E' => print 'e' if 32-bit form of jcxz 'F' => print 'w' or 'l' depending on address size prefix (loop insns) 'H' => print ",pt" or ",pn" branch hint + 'I' => honor following macro letter even in Intel mode (implemented only + . for some of the macro letters) + 'J' => print 'l' 'L' => print 'l' if suffix_always is true 'N' => print 'n' if instruction has no wait "prefix" 'O' => print 'd', or 'o' @@ -449,9 +500,11 @@ struct dis386 { 'S' => print 'w', 'l' or 'q' if suffix_always is true 'T' => print 'q' in 64bit mode and behave as 'P' otherwise 'U' => print 'q' in 64bit mode and behave as 'Q' otherwise - 'X' => print 's', 'd' depending on data16 prefix (for XMM) + 'V' => print 'q' in 64bit mode and behave as 'S' otherwise 'W' => print 'b' or 'w' ("w" or "de" in intel mode) + 'X' => print 's', 'd' depending on data16 prefix (for XMM) 'Y' => 'q' if instruction has an REX 64bit overwrite prefix + 'Z' => print 'q' in 64bit mode and behave as 'L' otherwise Many of the above letters print nothing in Intel mode. See "putop" for the details. @@ -489,7 +542,7 @@ static const struct dis386 dis386[] = { { "adcB", AL, Ib, XX }, { "adcS", eAX, Iv, XX }, { "push{T|}", ss, XX, XX }, - { "popT|}", ss, XX, XX }, + { "pop{T|}", ss, XX, XX }, /* 18 */ { "sbbB", Eb, Gb, XX }, { "sbbS", Ev, Gv, XX }, @@ -554,23 +607,23 @@ static const struct dis386 dis386[] = { { "dec{S|}", RMeSI, XX, XX }, { "dec{S|}", RMeDI, XX, XX }, /* 50 */ - { "pushS", RMrAX, XX, XX }, - { "pushS", RMrCX, XX, XX }, - { "pushS", RMrDX, XX, XX }, - { "pushS", RMrBX, XX, XX }, - { "pushS", RMrSP, XX, XX }, - { "pushS", RMrBP, XX, XX }, - { "pushS", RMrSI, XX, XX }, - { "pushS", RMrDI, XX, XX }, + { "pushV", RMrAX, XX, XX }, + { "pushV", RMrCX, XX, XX }, + { "pushV", RMrDX, XX, XX }, + { "pushV", RMrBX, XX, XX }, + { "pushV", RMrSP, XX, XX }, + { "pushV", RMrBP, XX, XX }, + { "pushV", RMrSI, XX, XX }, + { "pushV", RMrDI, XX, XX }, /* 58 */ - { "popS", RMrAX, XX, XX }, - { "popS", RMrCX, XX, XX }, - { "popS", RMrDX, XX, XX }, - { "popS", RMrBX, XX, XX }, - { "popS", RMrSP, XX, XX }, - { "popS", RMrBP, XX, XX }, - { "popS", RMrSI, XX, XX }, - { "popS", RMrDI, XX, XX }, + { "popV", RMrAX, XX, XX }, + { "popV", RMrCX, XX, XX }, + { "popV", RMrDX, XX, XX }, + { "popV", RMrBX, XX, XX }, + { "popV", RMrSP, XX, XX }, + { "popV", RMrBP, XX, XX }, + { "popV", RMrSI, XX, XX }, + { "popV", RMrDI, XX, XX }, /* 60 */ { "pusha{P|}", XX, XX, XX }, { "popa{P|}", XX, XX, XX }, @@ -585,10 +638,10 @@ static const struct dis386 dis386[] = { { "imulS", Gv, Ev, Iv }, { "pushT", sIb, XX, XX }, { "imulS", Gv, Ev, sIb }, - { "ins{b||b|}", Yb, indirDX, XX }, - { "ins{R||R|}", Yv, indirDX, XX }, - { "outs{b||b|}", indirDX, Xb, XX }, - { "outs{R||R|}", indirDX, Xv, XX }, + { "ins{b||b|}", Ybr, indirDX, XX }, + { "ins{R||R|}", Yvr, indirDX, XX }, + { "outs{b||b|}", indirDXr, Xb, XX }, + { "outs{R||R|}", indirDXr, Xv, XX }, /* 70 */ { "joH", Jb, XX, cond_jump_flag }, { "jnoH", Jb, XX, cond_jump_flag }, @@ -621,13 +674,12 @@ static const struct dis386 dis386[] = { { "movS", Ev, Gv, XX }, { "movB", Gb, Eb, XX }, { "movS", Gv, Ev, XX }, - { "movQ", Ev, Sw, XX }, + { "movQ", Sv, Sw, XX }, { "leaS", Gv, M, XX }, - { "movQ", Sw, Ev, XX }, - { "popU", Ev, XX, XX }, + { "movQ", Sw, Sv, XX }, + { "popU", stackEv, XX, XX }, /* 90 */ - { "nop", XX, XX, XX }, - /* FIXME: NOP with REPz prefix is called PAUSE. */ + { "nop", NOP_Fixup, 0, XX, XX }, { "xchgS", RMeCX, eAX, XX }, { "xchgS", RMeDX, eAX, XX }, { "xchgS", RMeBX, eAX, XX }, @@ -638,28 +690,28 @@ static const struct dis386 dis386[] = { /* 98 */ { "cW{tR||tR|}", XX, XX, XX }, { "cR{tO||tO|}", XX, XX, XX }, - { "lcall{T|}", Ap, XX, XX }, + { "Jcall{T|}", Ap, XX, XX }, { "(bad)", XX, XX, XX }, /* fwait */ { "pushfT", XX, XX, XX }, { "popfT", XX, XX, XX }, { "sahf{|}", XX, XX, XX }, { "lahf{|}", XX, XX, XX }, /* a0 */ - { "movB", AL, Ob64, XX }, - { "movS", eAX, Ov64, XX }, - { "movB", Ob64, AL, XX }, - { "movS", Ov64, eAX, XX }, - { "movs{b||b|}", Yb, Xb, XX }, - { "movs{R||R|}", Yv, Xv, XX }, + { "movB", AL, Ob, XX }, + { "movS", eAX, Ov, XX }, + { "movB", Ob, AL, XX }, + { "movS", Ov, eAX, XX }, + { "movs{b||b|}", Ybr, Xb, XX }, + { "movs{R||R|}", Yvr, Xv, XX }, { "cmps{b||b|}", Xb, Yb, XX }, { "cmps{R||R|}", Xv, Yv, XX }, /* a8 */ { "testB", AL, Ib, XX }, { "testS", eAX, Iv, XX }, - { "stosB", Yb, AL, XX }, - { "stosS", Yv, eAX, XX }, - { "lodsB", AL, Xb, XX }, - { "lodsS", eAX, Xv, XX }, + { "stosB", Ybr, AL, XX }, + { "stosS", Yvr, eAX, XX }, + { "lodsB", ALr, Xb, XX }, + { "lodsS", eAXr, Xv, XX }, { "scasB", AL, Yb, XX }, { "scasS", eAX, Yv, XX }, /* b0 */ @@ -728,7 +780,7 @@ static const struct dis386 dis386[] = { /* e8 */ { "callT", Jv, XX, XX }, { "jmpT", Jv, XX, XX }, - { "ljmp{T|}", Ap, XX, XX }, + { "Jjmp{T|}", Ap, XX, XX }, { "jmp", Jb, XX, XX }, { "inB", AL, indirDX, XX }, { "inS", eAX, indirDX, XX }, @@ -736,7 +788,7 @@ static const struct dis386 dis386[] = { { "outS", indirDX, eAX, XX }, /* f0 */ { "(bad)", XX, XX, XX }, /* lock prefix */ - { "(bad)", XX, XX, XX }, + { "icebp", XX, XX, XX }, { "(bad)", XX, XX, XX }, /* repne */ { "(bad)", XX, XX, XX }, /* repz */ { "hlt", XX, XX, XX }, @@ -776,11 +828,11 @@ static const struct dis386 dis386_twobyte[] = { /* 10 */ { PREGRP8 }, { PREGRP9 }, - { "movlpX", XM, EX, SIMD_Fixup, 'h' }, /* really only 2 operands */ + { PREGRP30 }, { "movlpX", EX, XM, SIMD_Fixup, 'h' }, { "unpcklpX", XM, EX, XX }, { "unpckhpX", XM, EX, XX }, - { "movhpX", XM, EX, SIMD_Fixup, 'l' }, + { PREGRP31 }, { "movhpX", EX, XM, SIMD_Fixup, 'l' }, /* 18 */ { GRP14 }, @@ -792,10 +844,10 @@ static const struct dis386 dis386_twobyte[] = { { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, /* 20 */ - { "movL", Rm, Cm, XX }, - { "movL", Rm, Dm, XX }, - { "movL", Cm, Rm, XX }, - { "movL", Dm, Rm, XX }, + { "movZ", Rm, Cm, XX }, + { "movZ", Rm, Dm, XX }, + { "movZ", Cm, Rm, XX }, + { "movZ", Dm, Rm, XX }, { "movL", Rd, Td, XX }, { "(bad)", XX, XX, XX }, { "movL", Td, Rd, XX }, @@ -819,9 +871,9 @@ static const struct dis386 dis386_twobyte[] = { { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, /* 38 */ + { THREE_BYTE_0 }, { "(bad)", XX, XX, XX }, - { "(bad)", XX, XX, XX }, - { "(bad)", XX, XX, XX }, + { THREE_BYTE_1 }, { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, @@ -846,7 +898,7 @@ static const struct dis386 dis386_twobyte[] = { { "cmovle", Gv, Ev, XX }, { "cmovg", Gv, Ev, XX }, /* 50 */ - { "movmskpX", Gd, XS, XX }, + { "movmskpX", Gdq, XS, XX }, { PREGRP13 }, { PREGRP12 }, { PREGRP11 }, @@ -879,7 +931,7 @@ static const struct dis386 dis386_twobyte[] = { { "packssdw", MX, EM, XX }, { PREGRP26 }, { PREGRP24 }, - { "movd", MX, Ed, XX }, + { "movd", MX, Edq, XX }, { PREGRP19 }, /* 70 */ { PREGRP22 }, @@ -891,12 +943,12 @@ static const struct dis386 dis386_twobyte[] = { { "pcmpeqd", MX, EM, XX }, { "emms", XX, XX, XX }, /* 78 */ + { "vmread", Em, Gm, XX }, + { "vmwrite", Gm, Em, XX }, { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, - { "(bad)", XX, XX, XX }, - { "(bad)", XX, XX, XX }, - { "(bad)", XX, XX, XX }, - { "(bad)", XX, XX, XX }, + { PREGRP28 }, + { PREGRP29 }, { PREGRP23 }, { PREGRP20 }, /* 80 */ @@ -942,8 +994,8 @@ static const struct dis386 dis386_twobyte[] = { { "btS", Ev, Gv, XX }, { "shldS", Ev, Gv, Ib }, { "shldS", Ev, Gv, CL }, - { "(bad)", XX, XX, XX }, - { "(bad)", XX, XX, XX }, + { GRPPADLCK2 }, + { GRPPADLCK1 }, /* a8 */ { "pushT", gs, XX, XX }, { "popT", gs, XX, XX }, @@ -976,8 +1028,8 @@ static const struct dis386 dis386_twobyte[] = { { "xaddS", Ev, Gv, XX }, { PREGRP1 }, { "movntiS", Ev, Gv, XX }, - { "pinsrw", MX, Ed, Ib }, - { "pextrw", Gd, MS, Ib }, + { "pinsrw", MX, Edqw, Ib }, + { "pextrw", Gdq, MS, Ib }, { "shufpX", XM, EX, Ib }, { GRP9 }, /* c8 */ @@ -990,14 +1042,14 @@ static const struct dis386 dis386_twobyte[] = { { "bswap", RMeSI, XX, XX }, { "bswap", RMeDI, XX, XX }, /* d0 */ - { "(bad)", XX, XX, XX }, + { PREGRP27 }, { "psrlw", MX, EM, XX }, { "psrld", MX, EM, XX }, { "psrlq", MX, EM, XX }, { "paddq", MX, EM, XX }, { "pmullw", MX, EM, XX }, { PREGRP21 }, - { "pmovmskb", Gd, MS, XX }, + { "pmovmskb", Gdq, MS, XX }, /* d8 */ { "psubusb", MX, EM, XX }, { "psubusw", MX, EM, XX }, @@ -1026,7 +1078,7 @@ static const struct dis386 dis386_twobyte[] = { { "pmaxsw", MX, EM, XX }, { "pxor", MX, EM, XX }, /* f0 */ - { "(bad)", XX, XX, XX }, + { PREGRP32 }, { "psllw", MX, EM, XX }, { "pslld", MX, EM, XX }, { "psllq", MX, EM, XX }, @@ -1074,19 +1126,19 @@ static const unsigned char twobyte_has_modrm[256] = { /* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,1, /* 0f */ /* 10 */ 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0, /* 1f */ /* 20 */ 1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,1, /* 2f */ - /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */ + /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 3f */ /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */ /* 50 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 5f */ /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 6f */ - /* 70 */ 1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1, /* 7f */ + /* 70 */ 1,1,1,1,1,1,1,0,1,1,0,0,1,1,1,1, /* 7f */ /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */ /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */ - /* a0 */ 0,0,0,1,1,1,0,0,0,0,0,1,1,1,1,1, /* af */ + /* a0 */ 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1, /* af */ /* b0 */ 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1, /* bf */ /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */ - /* d0 */ 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* df */ + /* d0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* df */ /* e0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ef */ - /* f0 */ 0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0 /* ff */ + /* f0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0 /* ff */ /* ------------------------------- */ /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ }; @@ -1095,21 +1147,21 @@ static const unsigned char twobyte_uses_SSE_prefix[256] = { /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ /* ------------------------------- */ /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */ - /* 10 */ 1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */ + /* 10 */ 1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0, /* 1f */ /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,0,1,1,0,0, /* 2f */ - /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */ + /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 3f */ /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */ /* 50 */ 0,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* 5f */ /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1, /* 6f */ - /* 70 */ 1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1, /* 7f */ + /* 70 */ 1,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1, /* 7f */ /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */ /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */ /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */ /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */ /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */ - /* d0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */ + /* d0 */ 1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */ /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */ - /* f0 */ 0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0 /* ff */ + /* f0 */ 1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0 /* ff */ /* ------------------------------- */ /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ }; @@ -1249,25 +1301,25 @@ static const struct dis386 grps[][8] = { }, /* GRP2b_one */ { - { "rolA", Eb, XX, XX }, - { "rorA", Eb, XX, XX }, - { "rclA", Eb, XX, XX }, - { "rcrA", Eb, XX, XX }, - { "shlA", Eb, XX, XX }, - { "shrA", Eb, XX, XX }, + { "rolA", Eb, I1, XX }, + { "rorA", Eb, I1, XX }, + { "rclA", Eb, I1, XX }, + { "rcrA", Eb, I1, XX }, + { "shlA", Eb, I1, XX }, + { "shrA", Eb, I1, XX }, { "(bad)", XX, XX, XX }, - { "sarA", Eb, XX, XX }, + { "sarA", Eb, I1, XX }, }, /* GRP2S_one */ { - { "rolQ", Ev, XX, XX }, - { "rorQ", Ev, XX, XX }, - { "rclQ", Ev, XX, XX }, - { "rcrQ", Ev, XX, XX }, - { "shlQ", Ev, XX, XX }, - { "shrQ", Ev, XX, XX }, + { "rolQ", Ev, I1, XX }, + { "rorQ", Ev, I1, XX }, + { "rclQ", Ev, I1, XX }, + { "rcrQ", Ev, I1, XX }, + { "shlQ", Ev, I1, XX }, + { "shrQ", Ev, I1, XX }, { "(bad)", XX, XX, XX}, - { "sarQ", Ev, XX, XX }, + { "sarQ", Ev, I1, XX }, }, /* GRP2b_cl */ { @@ -1329,10 +1381,10 @@ static const struct dis386 grps[][8] = { { "incQ", Ev, XX, XX }, { "decQ", Ev, XX, XX }, { "callT", indirEv, XX, XX }, - { "lcallT", indirEv, XX, XX }, + { "JcallT", indirEp, XX, XX }, { "jmpT", indirEv, XX, XX }, - { "ljmpT", indirEv, XX, XX }, - { "pushU", Ev, XX, XX }, + { "JjmpT", indirEp, XX, XX }, + { "pushU", stackEv, XX, XX }, { "(bad)", XX, XX, XX }, }, /* GRP6 */ @@ -1348,14 +1400,14 @@ static const struct dis386 grps[][8] = { }, /* GRP7 */ { - { "sgdtQ", M, XX, XX }, - { "sidtQ", M, XX, XX }, - { "lgdtQ", M, XX, XX }, - { "lidtQ", M, XX, XX }, + { "sgdtIQ", VMX_Fixup, 0, XX, XX }, + { "sidtIQ", PNI_Fixup, 0, XX, XX }, + { "lgdt{Q|Q||}", M, XX, XX }, + { "lidt{Q|Q||}", SVME_Fixup, 0, XX, XX }, { "smswQ", Ev, XX, XX }, { "(bad)", XX, XX, XX }, { "lmsw", Ew, XX, XX }, - { "invlpg", Ew, XX, XX }, + { "invlpg", INVLPG_Fixup, w_mode, XX, XX }, }, /* GRP8 */ { @@ -1371,13 +1423,13 @@ static const struct dis386 grps[][8] = { /* GRP9 */ { { "(bad)", XX, XX, XX }, - { "cmpxchg8b", Ev, XX, XX }, - { "(bad)", XX, XX, XX }, - { "(bad)", XX, XX, XX }, + { "cmpxchg8b", Eq, XX, XX }, { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, + { "", VM, XX, XX }, /* See OP_VMX. */ + { "vmptrst", Eq, XX, XX }, }, /* GRP10 */ { @@ -1419,10 +1471,9 @@ static const struct dis386 grps[][8] = { { "ldmxcsr", Ev, XX, XX }, { "stmxcsr", Ev, XX, XX }, { "(bad)", XX, XX, XX }, - { "lfence", None, XX, XX }, - { "mfence", None, XX, XX }, - { "sfence", None, XX, XX }, - /* FIXME: the sfence with memory operand is clflush! */ + { "lfence", OP_0fae, 0, XX, XX }, + { "mfence", OP_0fae, 0, XX, XX }, + { "clflush", OP_0fae, 0, XX, XX }, }, /* GRP14 */ { @@ -1445,6 +1496,28 @@ static const struct dis386 grps[][8] = { { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, { "(bad)", XX, XX, XX }, + }, + /* GRPPADLCK1 */ + { + { "xstore-rng", OP_0f07, 0, XX, XX }, + { "xcrypt-ecb", OP_0f07, 0, XX, XX }, + { "xcrypt-cbc", OP_0f07, 0, XX, XX }, + { "xcrypt-ctr", OP_0f07, 0, XX, XX }, + { "xcrypt-cfb", OP_0f07, 0, XX, XX }, + { "xcrypt-ofb", OP_0f07, 0, XX, XX }, + { "(bad)", OP_0f07, 0, XX, XX }, + { "(bad)", OP_0f07, 0, XX, XX }, + }, + /* GRPPADLCK2 */ + { + { "montmul", OP_0f07, 0, XX, XX }, + { "xsha1", OP_0f07, 0, XX, XX }, + { "xsha256", OP_0f07, 0, XX, XX }, + { "(bad)", OP_0f07, 0, XX, XX }, + { "(bad)", OP_0f07, 0, XX, XX }, + { "(bad)", OP_0f07, 0, XX, XX }, + { "(bad)", OP_0f07, 0, XX, XX }, + { "(bad)", OP_0f07, 0, XX, XX }, } }; @@ -1612,9 +1685,9 @@ static const struct dis386 prefix_user_table[][4] = { }, /* PREGRP23 */ { - { "movd", Ed, MX, XX }, + { "movd", Edq, MX, XX }, { "movq", XM, EX, XX }, - { "movd", Ed, XM, XX }, + { "movd", Edq, XM, XX }, { "(bad)", Ed, XM, XX }, }, /* PREGRP24 */ @@ -1626,10 +1699,10 @@ static const struct dis386 prefix_user_table[][4] = { }, /* PREGRP25 */ { - { "movntq", Ev, MX, XX }, - { "(bad)", Ev, XM, XX }, - { "movntdq", Ev, XM, XX }, - { "(bad)", Ev, XM, XX }, + { "movntq", EM, MX, XX }, + { "(bad)", EM, XM, XX }, + { "movntdq", EM, XM, XX }, + { "(bad)", EM, XM, XX }, }, /* PREGRP26 */ { @@ -1638,6 +1711,48 @@ static const struct dis386 prefix_user_table[][4] = { { "punpcklqdq", XM, EX, XX }, { "(bad)", XM, EX, XX }, }, + /* PREGRP27 */ + { + { "(bad)", MX, EX, XX }, + { "(bad)", XM, EX, XX }, + { "addsubpd", XM, EX, XX }, + { "addsubps", XM, EX, XX }, + }, + /* PREGRP28 */ + { + { "(bad)", MX, EX, XX }, + { "(bad)", XM, EX, XX }, + { "haddpd", XM, EX, XX }, + { "haddps", XM, EX, XX }, + }, + /* PREGRP29 */ + { + { "(bad)", MX, EX, XX }, + { "(bad)", XM, EX, XX }, + { "hsubpd", XM, EX, XX }, + { "hsubps", XM, EX, XX }, + }, + /* PREGRP30 */ + { + { "movlpX", XM, EX, SIMD_Fixup, 'h' }, /* really only 2 operands */ + { "movsldup", XM, EX, XX }, + { "movlpd", XM, EX, XX }, + { "movddup", XM, EX, XX }, + }, + /* PREGRP31 */ + { + { "movhpX", XM, EX, SIMD_Fixup, 'l' }, + { "movshdup", XM, EX, XX }, + { "movhpd", XM, EX, XX }, + { "(bad)", XM, EX, XX }, + }, + /* PREGRP32 */ + { + { "(bad)", XM, EX, XX }, + { "(bad)", XM, EX, XX }, + { "(bad)", XM, EX, XX }, + { "lddqu", XM, M, XX }, + }, }; static const struct dis386 x86_64_table[][2] = { @@ -1647,10 +1762,83 @@ static const struct dis386 x86_64_table[][2] = { }, }; +static const struct dis386 three_byte_table[][32] = { + /* THREE_BYTE_0 */ + { + { "pshufb", MX, EM, XX }, + { "phaddw", MX, EM, XX }, + { "phaddd", MX, EM, XX }, + { "phaddsw", MX, EM, XX }, + { "pmaddubsw", MX, EM, XX }, + { "phsubw", MX, EM, XX }, + { "phsubd", MX, EM, XX }, + { "phsubsw", MX, EM, XX }, + { "psignb", MX, EM, XX }, + { "psignw", MX, EM, XX }, + { "psignd", MX, EM, XX }, + { "pmulhrsw", MX, EM, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "pabsb", MX, EM, XX }, + { "pabsw", MX, EM, XX }, + { "pabsd", MX, EM, XX }, + { "(bad)", XX, XX, XX } + }, + /* THREE_BYTE_1 */ + { + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "palignr", MX, EM, Ib }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX }, + { "(bad)", XX, XX, XX } + }, +}; + #define INTERNAL_DISASSEMBLER_ERROR _("<internal disassembler error>") static void -ckprefix () +ckprefix (void) { int newrex; rex = 0; @@ -1680,7 +1868,7 @@ ckprefix () case 0x4d: case 0x4e: case 0x4f: - if (mode_64bit) + if (address_mode == mode_64bit) newrex = *codep; else return; @@ -1722,7 +1910,7 @@ ckprefix () /* fwait is really an instruction. If there are prefixes before the fwait, they belong to the fwait, *not* to the following instruction. */ - if (prefixes) + if (prefixes || rex) { prefixes |= PREFIX_FWAIT; codep++; @@ -1736,8 +1924,8 @@ ckprefix () /* Rex is ignored when followed by another prefix. */ if (rex) { - oappend (prefix_name (rex, 0)); - oappend (" "); + rex_used = rex; + return; } rex = newrex; codep++; @@ -1748,9 +1936,7 @@ ckprefix () prefix byte. */ static const char * -prefix_name (pref, sizeflag) - int pref; - int sizeflag; +prefix_name (int pref, int sizeflag) { switch (pref) { @@ -1808,10 +1994,10 @@ prefix_name (pref, sizeflag) case 0x66: return (sizeflag & DFLAG) ? "data16" : "data32"; case 0x67: - if (mode_64bit) - return (sizeflag & AFLAG) ? "addr32" : "addr64"; + if (address_mode == mode_64bit) + return (sizeflag & AFLAG) ? "addr32" : "addr64"; else - return ((sizeflag & AFLAG) && !mode_64bit) ? "addr16" : "addr32"; + return (sizeflag & AFLAG) ? "addr16" : "addr32"; case FWAIT_OPCODE: return "fwait"; default: @@ -1821,6 +2007,7 @@ prefix_name (pref, sizeflag) static char op1out[100], op2out[100], op3out[100]; static int op_ad, op_index[3]; +static int two_source_ops; static bfd_vma op_address[3]; static bfd_vma op_riprel[3]; static bfd_vma start_pc; @@ -1834,16 +2021,14 @@ static bfd_vma start_pc; * The function returns the length of this instruction in bytes. */ -static int8_t intel_syntax; +static char intel_syntax; static char open_char; static char close_char; static char separator_char; static char scale_char; int -print_insn_i386 (pc, info) - bfd_vma pc; - disassemble_info *info; +print_insn_i386 (bfd_vma pc, disassemble_info *info) { intel_syntax = -1; @@ -1851,24 +2036,24 @@ print_insn_i386 (pc, info) } static int -print_insn (pc, info) - bfd_vma pc; - disassemble_info *info; +print_insn (bfd_vma pc, disassemble_info *info) { const struct dis386 *dp; int i; - int two_source_ops; char *first, *second, *third; int needcomma; - unsigned char uses_SSE_prefix; + unsigned char uses_SSE_prefix, uses_LOCK_prefix; int sizeflag; const char *p; struct dis_private priv; - mode_64bit = (info->mach == bfd_mach_x86_64_intel_syntax - || info->mach == bfd_mach_x86_64); + if (info->mach == bfd_mach_x86_64_intel_syntax + || info->mach == bfd_mach_x86_64) + address_mode = mode_64bit; + else + address_mode = mode_32bit; - if (intel_syntax == -1) + if (intel_syntax == (char) -1) intel_syntax = (info->mach == bfd_mach_i386_i386_intel_syntax || info->mach == bfd_mach_x86_64_intel_syntax); @@ -1886,17 +2071,17 @@ print_insn (pc, info) { if (strncmp (p, "x86-64", 6) == 0) { - mode_64bit = 1; + address_mode = mode_64bit; priv.orig_sizeflag = AFLAG | DFLAG; } else if (strncmp (p, "i386", 4) == 0) { - mode_64bit = 0; + address_mode = mode_32bit; priv.orig_sizeflag = AFLAG | DFLAG; } else if (strncmp (p, "i8086", 5) == 0) { - mode_64bit = 0; + address_mode = mode_16bit; priv.orig_sizeflag = 0; } else if (strncmp (p, "intel", 5) == 0) @@ -1962,7 +2147,7 @@ print_insn (pc, info) puts most long word instructions on a single line. */ info->bytes_per_line = 7; - info->private_data = (PTR) &priv; + info->private_data = &priv; priv.max_fetched = priv.the_buffer; priv.insn_start = pc; @@ -2012,13 +2197,14 @@ print_insn (pc, info) FETCH_DATA (info, codep + 1); two_source_ops = (*codep == 0x62) || (*codep == 0xc8); - if ((prefixes & PREFIX_FWAIT) - && ((*codep < 0xd8) || (*codep > 0xdf))) + if (((prefixes & PREFIX_FWAIT) + && ((*codep < 0xd8) || (*codep > 0xdf))) + || (rex && rex_used)) { const char *name; - /* fwait not followed by floating point instruction. Print the - first prefix, which is probably fwait itself. */ + /* fwait not followed by floating point instruction, or rex followed + by other prefixes. Print the first prefix. */ name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag); if (name == NULL) name = INTERNAL_DISASSEMBLER_ERROR; @@ -2032,12 +2218,14 @@ print_insn (pc, info) dp = &dis386_twobyte[*++codep]; need_modrm = twobyte_has_modrm[*codep]; uses_SSE_prefix = twobyte_uses_SSE_prefix[*codep]; + uses_LOCK_prefix = (*codep & ~0x02) == 0x20; } else { dp = &dis386[*codep]; need_modrm = onebyte_has_modrm[*codep]; uses_SSE_prefix = 0; + uses_LOCK_prefix = 0; } codep++; @@ -2051,7 +2239,7 @@ print_insn (pc, info) oappend ("repnz "); used_prefixes |= PREFIX_REPNZ; } - if (prefixes & PREFIX_LOCK) + if (!uses_LOCK_prefix && (prefixes & PREFIX_LOCK)) { oappend ("lock "); used_prefixes |= PREFIX_LOCK; @@ -2062,7 +2250,7 @@ print_insn (pc, info) sizeflag ^= AFLAG; if (dp->bytemode3 != loop_jcxz_mode || intel_syntax) { - if ((sizeflag & AFLAG) || mode_64bit) + if ((sizeflag & AFLAG) || address_mode == mode_64bit) oappend ("addr32 "); else oappend ("addr16 "); @@ -2085,7 +2273,15 @@ print_insn (pc, info) } } - if (need_modrm) + if (dp->name == NULL && dp->bytemode1 == IS_3BYTE_OPCODE) + { + FETCH_DATA (info, codep + 2); + dp = &three_byte_table[dp->bytemode2][*codep++]; + mod = (*codep >> 6) & 3; + reg = (*codep >> 3) & 7; + rm = *codep & 7; + } + else if (need_modrm) { FETCH_DATA (info, codep + 1); mod = (*codep >> 6) & 3; @@ -2129,7 +2325,8 @@ print_insn (pc, info) break; case X86_64_SPECIAL: - dp = &x86_64_table[dp->bytemode2][mode_64bit]; + index = address_mode == mode_64bit ? 1 : 0; + dp = &x86_64_table[dp->bytemode2][index]; break; default: @@ -2251,14 +2448,14 @@ static const char *float_mem[] = { "fsubr{s||s|}", "fdiv{s||s|}", "fdivr{s||s|}", - /* d9 */ + /* d9 */ "fld{s||s|}", "(bad)", "fst{s||s|}", "fstp{s||s|}", - "fldenv", + "fldenvIC", "fldcw", - "fNstenv", + "fNstenvIC", "fNstcw", /* da */ "fiadd{l||l|}", @@ -2271,7 +2468,7 @@ static const char *float_mem[] = { "fidivr{l||l|}", /* db */ "fild{l||l|}", - "(bad)", + "fisttp{l||l|}", "fist{l||l|}", "fistp{l||l|}", "(bad)", @@ -2289,12 +2486,12 @@ static const char *float_mem[] = { "fdivr{l||l|}", /* dd */ "fld{l||l|}", - "(bad)", + "fisttp{ll||ll|}", "fst{l||l|}", "fstp{l||l|}", - "frstor", + "frstorIC", "(bad)", - "fNsave", + "fNsaveIC", "fNstsw", /* de */ "fiadd", @@ -2307,13 +2504,88 @@ static const char *float_mem[] = { "fidivr", /* df */ "fild", - "(bad)", + "fisttp", "fist", "fistp", "fbld", "fild{ll||ll|}", "fbstp", - "fistpll", + "fistp{ll||ll|}", +}; + +static const unsigned char float_mem_mode[] = { + /* d8 */ + d_mode, + d_mode, + d_mode, + d_mode, + d_mode, + d_mode, + d_mode, + d_mode, + /* d9 */ + d_mode, + 0, + d_mode, + d_mode, + 0, + w_mode, + 0, + w_mode, + /* da */ + d_mode, + d_mode, + d_mode, + d_mode, + d_mode, + d_mode, + d_mode, + d_mode, + /* db */ + d_mode, + d_mode, + d_mode, + d_mode, + 0, + t_mode, + 0, + t_mode, + /* dc */ + q_mode, + q_mode, + q_mode, + q_mode, + q_mode, + q_mode, + q_mode, + q_mode, + /* dd */ + q_mode, + q_mode, + q_mode, + q_mode, + 0, + 0, + 0, + w_mode, + /* de */ + w_mode, + w_mode, + w_mode, + w_mode, + w_mode, + w_mode, + w_mode, + w_mode, + /* df */ + w_mode, + w_mode, + w_mode, + w_mode, + t_mode, + q_mode, + t_mode, + q_mode }; #define ST OP_ST, 0 @@ -2483,8 +2755,7 @@ static const char *fgrps[][8] = { }; static void -dofloat (sizeflag) - int sizeflag; +dofloat (int sizeflag) { const struct dis386 *dp; unsigned char floatop; @@ -2493,14 +2764,12 @@ dofloat (sizeflag) if (mod != 3) { - putop (float_mem[(floatop - 0xd8) * 8 + reg], sizeflag); + int fp_indx = (floatop - 0xd8) * 8 + reg; + + putop (float_mem[fp_indx], sizeflag); obufp = op1out; - if (floatop == 0xdb) - OP_E (x_mode, sizeflag); - else if (floatop == 0xdd) - OP_E (d_mode, sizeflag); - else - OP_E (v_mode, sizeflag); + op_ad = 2; + OP_E (float_mem_mode[fp_indx], sizeflag); return; } /* Skip mod/rm byte. */ @@ -2521,26 +2790,25 @@ dofloat (sizeflag) putop (dp->name, sizeflag); obufp = op1out; + op_ad = 2; if (dp->op1) (*dp->op1) (dp->bytemode1, sizeflag); + obufp = op2out; + op_ad = 1; if (dp->op2) (*dp->op2) (dp->bytemode2, sizeflag); } } static void -OP_ST (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_ST (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { - oappend ("%st"); + oappend ("%st" + intel_syntax); } static void -OP_STi (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_STi (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { snprintf (scratchbuf, sizeof(scratchbuf), "%%st(%d)", rm); oappend (scratchbuf + intel_syntax); @@ -2548,12 +2816,10 @@ OP_STi (bytemode, sizeflag) /* Capital letters in template are macros. */ static int -putop (template, sizeflag) - const char *template; - int sizeflag; +putop (const char *template, int sizeflag) { const char *p; - int alt; + int alt = 0; for (p = template; *p; p++) { @@ -2566,7 +2832,7 @@ putop (template, sizeflag) alt = 0; if (intel_syntax) alt += 1; - if (mode_64bit) + if (address_mode == mode_64bit) alt += 2; while (alt != 0) { @@ -2584,7 +2850,10 @@ putop (template, sizeflag) } alt--; } - break; + /* Fall through. */ + case 'I': + alt = 1; + continue; case '|': while (*++p != '}') { @@ -2595,19 +2864,31 @@ putop (template, sizeflag) case '}': break; case 'A': - if (intel_syntax) - break; + if (intel_syntax) + break; if (mod != 3 || (sizeflag & SUFFIX_ALWAYS)) *obufp++ = 'b'; break; case 'B': - if (intel_syntax) - break; + if (intel_syntax) + break; if (sizeflag & SUFFIX_ALWAYS) *obufp++ = 'b'; break; + case 'C': + if (intel_syntax && !alt) + break; + if ((prefixes & PREFIX_DATA) || (sizeflag & SUFFIX_ALWAYS)) + { + if (sizeflag & DFLAG) + *obufp++ = intel_syntax ? 'd' : 'l'; + else + *obufp++ = intel_syntax ? 'w' : 's'; + used_prefixes |= (prefixes & PREFIX_DATA); + } + break; case 'E': /* For jcxz/jecxz */ - if (mode_64bit) + if (address_mode == mode_64bit) { if (sizeflag & AFLAG) *obufp++ = 'r'; @@ -2620,20 +2901,20 @@ putop (template, sizeflag) used_prefixes |= (prefixes & PREFIX_ADDR); break; case 'F': - if (intel_syntax) - break; + if (intel_syntax) + break; if ((prefixes & PREFIX_ADDR) || (sizeflag & SUFFIX_ALWAYS)) { if (sizeflag & AFLAG) - *obufp++ = mode_64bit ? 'q' : 'l'; + *obufp++ = address_mode == mode_64bit ? 'q' : 'l'; else - *obufp++ = mode_64bit ? 'l' : 'w'; + *obufp++ = address_mode == mode_64bit ? 'l' : 'w'; used_prefixes |= (prefixes & PREFIX_ADDR); } break; case 'H': - if (intel_syntax) - break; + if (intel_syntax) + break; if ((prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_CS || (prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_DS) { @@ -2646,9 +2927,23 @@ putop (template, sizeflag) *obufp++ = 'n'; } break; + case 'J': + if (intel_syntax) + break; + *obufp++ = 'l'; + break; + case 'Z': + if (intel_syntax) + break; + if (address_mode == mode_64bit && (sizeflag & SUFFIX_ALWAYS)) + { + *obufp++ = 'q'; + break; + } + /* Fall through. */ case 'L': - if (intel_syntax) - break; + if (intel_syntax) + break; if (sizeflag & SUFFIX_ALWAYS) *obufp++ = 'l'; break; @@ -2666,17 +2961,17 @@ putop (template, sizeflag) *obufp++ = 'd'; break; case 'T': - if (intel_syntax) - break; - if (mode_64bit) + if (intel_syntax) + break; + if (address_mode == mode_64bit && (sizeflag & DFLAG)) { *obufp++ = 'q'; break; } /* Fall through. */ case 'P': - if (intel_syntax) - break; + if (intel_syntax) + break; if ((prefixes & PREFIX_DATA) || (rex & REX_MODE64) || (sizeflag & SUFFIX_ALWAYS)) @@ -2690,22 +2985,23 @@ putop (template, sizeflag) *obufp++ = 'l'; else *obufp++ = 'w'; - used_prefixes |= (prefixes & PREFIX_DATA); } + used_prefixes |= (prefixes & PREFIX_DATA); } break; case 'U': - if (intel_syntax) - break; - if (mode_64bit) + if (intel_syntax) + break; + if (address_mode == mode_64bit && (sizeflag & DFLAG)) { - *obufp++ = 'q'; + if (mod != 3 || (sizeflag & SUFFIX_ALWAYS)) + *obufp++ = 'q'; break; } /* Fall through. */ case 'Q': - if (intel_syntax) - break; + if (intel_syntax && !alt) + break; USED_REX (REX_MODE64); if (mod != 3 || (sizeflag & SUFFIX_ALWAYS)) { @@ -2714,16 +3010,16 @@ putop (template, sizeflag) else { if (sizeflag & DFLAG) - *obufp++ = 'l'; + *obufp++ = intel_syntax ? 'd' : 'l'; else *obufp++ = 'w'; - used_prefixes |= (prefixes & PREFIX_DATA); } + used_prefixes |= (prefixes & PREFIX_DATA); } break; case 'R': USED_REX (REX_MODE64); - if (intel_syntax) + if (intel_syntax) { if (rex & REX_MODE64) { @@ -2753,9 +3049,19 @@ putop (template, sizeflag) if (!(rex & REX_MODE64)) used_prefixes |= (prefixes & PREFIX_DATA); break; + case 'V': + if (intel_syntax) + break; + if (address_mode == mode_64bit && (sizeflag & DFLAG)) + { + if (sizeflag & SUFFIX_ALWAYS) + *obufp++ = 'q'; + break; + } + /* Fall through. */ case 'S': - if (intel_syntax) - break; + if (intel_syntax) + break; if (sizeflag & SUFFIX_ALWAYS) { if (rex & REX_MODE64) @@ -2775,11 +3081,11 @@ putop (template, sizeflag) *obufp++ = 'd'; else *obufp++ = 's'; - used_prefixes |= (prefixes & PREFIX_DATA); + used_prefixes |= (prefixes & PREFIX_DATA); break; case 'Y': - if (intel_syntax) - break; + if (intel_syntax) + break; if (rex & REX_MODE64) { USED_REX (REX_MODE64); @@ -2796,7 +3102,7 @@ putop (template, sizeflag) *obufp++ = 'w'; else *obufp++ = 'b'; - if (intel_syntax) + if (intel_syntax) { if (rex) { @@ -2817,21 +3123,21 @@ putop (template, sizeflag) used_prefixes |= (prefixes & PREFIX_DATA); break; } + alt = 0; } *obufp = 0; return 0; } static void -oappend (s) - const char *s; +oappend (const char *s) { strcpy (obufp, s); obufp += strlen (s); } static void -append_seg () +append_seg (void) { if (prefixes & PREFIX_CS) { @@ -2866,9 +3172,7 @@ append_seg () } static void -OP_indirE (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_indirE (int bytemode, int sizeflag) { if (!intel_syntax) oappend ("*"); @@ -2878,7 +3182,7 @@ OP_indirE (bytemode, sizeflag) static void print_operand_value (char *buf, size_t bufsize, int hex, bfd_vma disp) { - if (mode_64bit) + if (address_mode == mode_64bit) { if (hex) { @@ -2933,9 +3237,68 @@ print_operand_value (char *buf, size_t bufsize, int hex, bfd_vma disp) } static void -OP_E (bytemode, sizeflag) - int bytemode; - int sizeflag; +intel_operand_size (int bytemode, int sizeflag) +{ + switch (bytemode) + { + case b_mode: + oappend ("BYTE PTR "); + break; + case w_mode: + case dqw_mode: + oappend ("WORD PTR "); + break; + case stack_v_mode: + if (address_mode == mode_64bit && (sizeflag & DFLAG)) + { + oappend ("QWORD PTR "); + used_prefixes |= (prefixes & PREFIX_DATA); + break; + } + /* FALLTHRU */ + case v_mode: + case dq_mode: + USED_REX (REX_MODE64); + if (rex & REX_MODE64) + oappend ("QWORD PTR "); + else if ((sizeflag & DFLAG) || bytemode == dq_mode) + oappend ("DWORD PTR "); + else + oappend ("WORD PTR "); + used_prefixes |= (prefixes & PREFIX_DATA); + break; + case d_mode: + oappend ("DWORD PTR "); + break; + case q_mode: + oappend ("QWORD PTR "); + break; + case m_mode: + if (address_mode == mode_64bit) + oappend ("QWORD PTR "); + else + oappend ("DWORD PTR "); + break; + case f_mode: + if (sizeflag & DFLAG) + oappend ("FWORD PTR "); + else + oappend ("DWORD PTR "); + used_prefixes |= (prefixes & PREFIX_DATA); + break; + case t_mode: + oappend ("TBYTE PTR "); + break; + case x_mode: + oappend ("XMMWORD PTR "); + break; + default: + break; + } +} + +static void +OP_E (int bytemode, int sizeflag) { bfd_vma disp; int add = 0; @@ -2969,26 +3332,33 @@ OP_E (bytemode, sizeflag) oappend (names64[rm + add]); break; case m_mode: - if (mode_64bit) + if (address_mode == mode_64bit) oappend (names64[rm + add]); else oappend (names32[rm + add]); break; + case stack_v_mode: + if (address_mode == mode_64bit && (sizeflag & DFLAG)) + { + oappend (names64[rm + add]); + used_prefixes |= (prefixes & PREFIX_DATA); + break; + } + bytemode = v_mode; + /* FALLTHRU */ case v_mode: + case dq_mode: + case dqw_mode: USED_REX (REX_MODE64); if (rex & REX_MODE64) oappend (names64[rm + add]); - else if (sizeflag & DFLAG) + else if ((sizeflag & DFLAG) || bytemode != v_mode) oappend (names32[rm + add]); else oappend (names16[rm + add]); used_prefixes |= (prefixes & PREFIX_DATA); break; case 0: - if (!(codep[-2] == 0xAE && codep[-1] == 0xF8 /* sfence */) - && !(codep[-2] == 0xAE && codep[-1] == 0xF0 /* mfence */) - && !(codep[-2] == 0xAE && codep[-1] == 0xe8 /* lfence */)) - BadOp (); /* bad sfence,lea,lds,les,lfs,lgs,lss modrm */ break; default: oappend (INTERNAL_DISASSEMBLER_ERROR); @@ -2998,9 +3368,11 @@ OP_E (bytemode, sizeflag) } disp = 0; + if (intel_syntax) + intel_operand_size (bytemode, sizeflag); append_seg (); - if ((sizeflag & AFLAG) || mode_64bit) /* 32 bit address mode */ + if ((sizeflag & AFLAG) || address_mode == mode_64bit) /* 32 bit address mode */ { int havesib; int havebase; @@ -3016,17 +3388,17 @@ OP_E (bytemode, sizeflag) { havesib = 1; FETCH_DATA (the_info, codep + 1); - scale = (*codep >> 6) & 3; index = (*codep >> 3) & 7; + if (address_mode == mode_64bit || index != 0x4) + /* When INDEX == 0x4 in 32 bit mode, SCALE is ignored. */ + scale = (*codep >> 6) & 3; base = *codep & 7; USED_REX (REX_EXTY); - USED_REX (REX_EXTZ); if (rex & REX_EXTY) index += 8; - if (rex & REX_EXTZ) - base += 8; codep++; } + base += add; switch (mod) { @@ -3034,7 +3406,7 @@ OP_E (bytemode, sizeflag) if ((base & 7) == 5) { havebase = 0; - if (mode_64bit && !havesib && (sizeflag & AFLAG)) + if (address_mode == mode_64bit && !havesib) riprel = 1; disp = get32s (); } @@ -3051,116 +3423,72 @@ OP_E (bytemode, sizeflag) } if (!intel_syntax) - if (mod != 0 || (base & 7) == 5) - { - print_operand_value (scratchbuf, sizeof(scratchbuf), !riprel, disp); - oappend (scratchbuf); + if (mod != 0 || (base & 7) == 5) + { + print_operand_value (scratchbuf, sizeof(scratchbuf), !riprel, disp); + oappend (scratchbuf); if (riprel) { set_op (disp, 1); oappend ("(%rip)"); } - } + } if (havebase || (havesib && (index != 4 || scale != 0))) { - if (intel_syntax) - { - switch (bytemode) - { - case b_mode: - oappend ("BYTE PTR "); - break; - case w_mode: - oappend ("WORD PTR "); - break; - case v_mode: - oappend ("DWORD PTR "); - break; - case d_mode: - oappend ("QWORD PTR "); - break; - case m_mode: - if (mode_64bit) - oappend ("DWORD PTR "); - else - oappend ("QWORD PTR "); - break; - case x_mode: - oappend ("XWORD PTR "); - break; - default: - break; - } - } *obufp++ = open_char; if (intel_syntax && riprel) oappend ("rip + "); - *obufp = '\0'; - USED_REX (REX_EXTZ); - if (!havesib && (rex & REX_EXTZ)) - base += 8; + *obufp = '\0'; if (havebase) - oappend (mode_64bit && (sizeflag & AFLAG) + oappend (address_mode == mode_64bit && (sizeflag & AFLAG) ? names64[base] : names32[base]); if (havesib) { if (index != 4) { - if (intel_syntax) - { - if (havebase) - { - *obufp++ = separator_char; - *obufp = '\0'; - } - snprintf (scratchbuf, sizeof(scratchbuf), "%s", - mode_64bit && (sizeflag & AFLAG) - ? names64[index] : names32[index]); - } - else - snprintf (scratchbuf, sizeof(scratchbuf), ",%s", - mode_64bit && (sizeflag & AFLAG) - ? names64[index] : names32[index]); + if (!intel_syntax || havebase) + { + *obufp++ = separator_char; + *obufp = '\0'; + } + oappend (address_mode == mode_64bit && (sizeflag & AFLAG) + ? names64[index] : names32[index]); + } + if (scale != 0 || (!intel_syntax && index != 4)) + { + *obufp++ = scale_char; + *obufp = '\0'; + snprintf (scratchbuf, sizeof(scratchbuf), "%d", 1 << scale); oappend (scratchbuf); } - if (!intel_syntax - || (intel_syntax - && bytemode != b_mode - && bytemode != w_mode - && bytemode != v_mode)) - { - *obufp++ = scale_char; - *obufp = '\0'; - snprintf (scratchbuf, sizeof(scratchbuf), "%d", 1 << scale); - oappend (scratchbuf); - } } - if (intel_syntax) - if (mod != 0 || (base & 7) == 5) - { - /* Don't print zero displacements. */ - if (disp != 0) - { - if ((bfd_signed_vma) disp > 0) - { - *obufp++ = '+'; - *obufp = '\0'; - } - - print_operand_value (scratchbuf, sizeof(scratchbuf), 0, - disp); - oappend (scratchbuf); - } - } + if (intel_syntax && disp) + { + if ((bfd_signed_vma) disp > 0) + { + *obufp++ = '+'; + *obufp = '\0'; + } + else if (mod != 1) + { + *obufp++ = '-'; + *obufp = '\0'; + disp = - (bfd_signed_vma) disp; + } + + print_operand_value (scratchbuf, sizeof(scratchbuf), mod != 1, + disp); + oappend (scratchbuf); + } *obufp++ = close_char; - *obufp = '\0'; + *obufp = '\0'; } else if (intel_syntax) - { - if (mod != 0 || (base & 7) == 5) - { + { + if (mod != 0 || (base & 7) == 5) + { if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS | PREFIX_ES | PREFIX_FS | PREFIX_GS)) ; @@ -3169,17 +3497,17 @@ OP_E (bytemode, sizeflag) oappend (names_seg[ds_reg - es_reg]); oappend (":"); } - print_operand_value (scratchbuf, sizeof(scratchbuf), 1, disp); - oappend (scratchbuf); - } - } + print_operand_value (scratchbuf, sizeof(scratchbuf), 1, disp); + oappend (scratchbuf); + } + } } else { /* 16 bit address mode */ switch (mod) { case 0: - if ((rm & 7) == 6) + if (rm == 6) { disp = get16 (); if ((disp & 0x8000) != 0) @@ -3200,27 +3528,58 @@ OP_E (bytemode, sizeflag) } if (!intel_syntax) - if (mod != 0 || (rm & 7) == 6) - { - print_operand_value (scratchbuf, sizeof(scratchbuf), 0, disp); - oappend (scratchbuf); - } + if (mod != 0 || rm == 6) + { + print_operand_value (scratchbuf, sizeof(scratchbuf), 0, disp); + oappend (scratchbuf); + } - if (mod != 0 || (rm & 7) != 6) + if (mod != 0 || rm != 6) { *obufp++ = open_char; - *obufp = '\0'; - oappend (index16[rm + add]); - *obufp++ = close_char; - *obufp = '\0'; + *obufp = '\0'; + oappend (index16[rm]); + if (intel_syntax && disp) + { + if ((bfd_signed_vma) disp > 0) + { + *obufp++ = '+'; + *obufp = '\0'; + } + else if (mod != 1) + { + *obufp++ = '-'; + *obufp = '\0'; + disp = - (bfd_signed_vma) disp; + } + + print_operand_value (scratchbuf, sizeof(scratchbuf), mod != 1, + disp); + oappend (scratchbuf); + } + + *obufp++ = close_char; + *obufp = '\0'; + } + else if (intel_syntax) + { + if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS + | PREFIX_ES | PREFIX_FS | PREFIX_GS)) + ; + else + { + oappend (names_seg[ds_reg - es_reg]); + oappend (":"); + } + print_operand_value (scratchbuf, sizeof(scratchbuf), 1, + disp & 0xffff); + oappend (scratchbuf); } } } static void -OP_G (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_G (int bytemode, int sizeflag) { int add = 0; USED_REX (REX_EXTX); @@ -3245,15 +3604,23 @@ OP_G (bytemode, sizeflag) oappend (names64[reg + add]); break; case v_mode: + case dq_mode: + case dqw_mode: USED_REX (REX_MODE64); if (rex & REX_MODE64) oappend (names64[reg + add]); - else if (sizeflag & DFLAG) + else if ((sizeflag & DFLAG) || bytemode != v_mode) oappend (names32[reg + add]); else oappend (names16[reg + add]); used_prefixes |= (prefixes & PREFIX_DATA); break; + case m_mode: + if (address_mode == mode_64bit) + oappend (names64[reg + add]); + else + oappend (names32[reg + add]); + break; default: oappend (INTERNAL_DISASSEMBLER_ERROR); break; @@ -3261,7 +3628,7 @@ OP_G (bytemode, sizeflag) } static bfd_vma -get64 () +get64 (void) { bfd_vma x; #ifdef BFD64 @@ -3286,7 +3653,7 @@ get64 () } static bfd_signed_vma -get32 () +get32 (void) { bfd_signed_vma x = 0; @@ -3299,7 +3666,7 @@ get32 () } static bfd_signed_vma -get32s () +get32s (void) { bfd_signed_vma x = 0; @@ -3315,7 +3682,7 @@ get32s () } static int -get16 () +get16 (void) { int x = 0; @@ -3326,12 +3693,10 @@ get16 () } static void -set_op (op, riprel) - bfd_vma op; - int riprel; +set_op (bfd_vma op, int riprel) { op_index[op_ad] = op_ad; - if (mode_64bit) + if (address_mode == mode_64bit) { op_address[op_ad] = op; op_riprel[op_ad] = riprel; @@ -3345,9 +3710,7 @@ set_op (op, riprel) } static void -OP_REG (code, sizeflag) - int code; - int sizeflag; +OP_REG (int code, int sizeflag) { const char *s; int add = 0; @@ -3359,9 +3722,9 @@ OP_REG (code, sizeflag) { case indir_dx_reg: if (intel_syntax) - s = "[dx]"; + s = "[dx]"; else - s = "(%dx)"; + s = "(%dx)"; break; case ax_reg: case cx_reg: case dx_reg: case bx_reg: case sp_reg: case bp_reg: case si_reg: case di_reg: @@ -3381,7 +3744,7 @@ OP_REG (code, sizeflag) break; case rAX_reg: case rCX_reg: case rDX_reg: case rBX_reg: case rSP_reg: case rBP_reg: case rSI_reg: case rDI_reg: - if (mode_64bit) + if (address_mode == mode_64bit && (sizeflag & DFLAG)) { s = names64[code - rAX_reg + add]; break; @@ -3407,9 +3770,7 @@ OP_REG (code, sizeflag) } static void -OP_IMREG (code, sizeflag) - int code; - int sizeflag; +OP_IMREG (int code, int sizeflag) { const char *s; @@ -3417,9 +3778,9 @@ OP_IMREG (code, sizeflag) { case indir_dx_reg: if (intel_syntax) - s = "[dx]"; + s = "[dx]"; else - s = "(%dx)"; + s = "(%dx)"; break; case ax_reg: case cx_reg: case dx_reg: case bx_reg: case sp_reg: case bp_reg: case si_reg: case di_reg: @@ -3456,9 +3817,7 @@ OP_IMREG (code, sizeflag) } static void -OP_I (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_I (int bytemode, int sizeflag) { bfd_signed_vma op; bfd_signed_vma mask = -1; @@ -3471,7 +3830,7 @@ OP_I (bytemode, sizeflag) mask = 0xff; break; case q_mode: - if (mode_64bit) + if (address_mode == mode_64bit) { op = get32s (); break; @@ -3497,6 +3856,10 @@ OP_I (bytemode, sizeflag) mask = 0xfffff; op = get16 (); break; + case const_1_mode: + if (intel_syntax) + oappend ("1"); + return; default: oappend (INTERNAL_DISASSEMBLER_ERROR); return; @@ -3510,14 +3873,12 @@ OP_I (bytemode, sizeflag) } static void -OP_I64 (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_I64 (int bytemode, int sizeflag) { bfd_signed_vma op; bfd_signed_vma mask = -1; - if (!mode_64bit) + if (address_mode != mode_64bit) { OP_I (bytemode, sizeflag); return; @@ -3563,9 +3924,7 @@ OP_I64 (bytemode, sizeflag) } static void -OP_sI (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_sI (int bytemode, int sizeflag) { bfd_signed_vma op; bfd_signed_vma mask = -1; @@ -3614,9 +3973,7 @@ OP_sI (bytemode, sizeflag) } static void -OP_J (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_J (int bytemode, int sizeflag) { bfd_vma disp; bfd_vma mask = -1; @@ -3630,7 +3987,7 @@ OP_J (bytemode, sizeflag) disp -= 0x100; break; case v_mode: - if (sizeflag & DFLAG) + if ((sizeflag & DFLAG) || (rex & REX_MODE64)) disp = get32s (); else { @@ -3652,17 +4009,13 @@ OP_J (bytemode, sizeflag) } static void -OP_SEG (dummy, sizeflag) - int dummy; - int sizeflag; +OP_SEG (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { oappend (names_seg[reg]); } static void -OP_DIR (dummy, sizeflag) - int dummy; - int sizeflag; +OP_DIR (int dummy ATTRIBUTE_UNUSED, int sizeflag) { int seg, offset; @@ -3678,22 +4031,22 @@ OP_DIR (dummy, sizeflag) } used_prefixes |= (prefixes & PREFIX_DATA); if (intel_syntax) - snprintf (scratchbuf, sizeof(scratchbuf), "0x%x,0x%x", seg, offset); + snprintf (scratchbuf, sizeof(scratchbuf), "0x%x:0x%x", seg, offset); else snprintf (scratchbuf, sizeof(scratchbuf), "$0x%x,$0x%x", seg, offset); oappend (scratchbuf); } static void -OP_OFF (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_OFF (int bytemode, int sizeflag) { bfd_vma off; + if (intel_syntax && (sizeflag & SUFFIX_ALWAYS)) + intel_operand_size (bytemode, sizeflag); append_seg (); - if ((sizeflag & AFLAG) || mode_64bit) + if ((sizeflag & AFLAG) || address_mode == mode_64bit) off = get32 (); else off = get16 (); @@ -3701,7 +4054,7 @@ OP_OFF (bytemode, sizeflag) if (intel_syntax) { if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS - | PREFIX_ES | PREFIX_FS | PREFIX_GS))) + | PREFIX_ES | PREFIX_FS | PREFIX_GS))) { oappend (names_seg[ds_reg - es_reg]); oappend (":"); @@ -3712,18 +4065,18 @@ OP_OFF (bytemode, sizeflag) } static void -OP_OFF64 (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_OFF64 (int bytemode, int sizeflag) { bfd_vma off; - if (!mode_64bit) + if (address_mode != mode_64bit) { OP_OFF (bytemode, sizeflag); return; } + if (intel_syntax && (sizeflag & SUFFIX_ALWAYS)) + intel_operand_size (bytemode, sizeflag); append_seg (); off = get64 (); @@ -3731,7 +4084,7 @@ OP_OFF64 (bytemode, sizeflag) if (intel_syntax) { if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS - | PREFIX_ES | PREFIX_FS | PREFIX_GS))) + | PREFIX_ES | PREFIX_FS | PREFIX_GS))) { oappend (names_seg[ds_reg - es_reg]); oappend (":"); @@ -3742,49 +4095,45 @@ OP_OFF64 (bytemode, sizeflag) } static void -ptr_reg (code, sizeflag) - int code; - int sizeflag; +ptr_reg (int code, int sizeflag) { const char *s; - if (intel_syntax) - oappend ("["); - else - oappend ("("); - USED_REX (REX_MODE64); - if (rex & REX_MODE64) + *obufp++ = open_char; + used_prefixes |= (prefixes & PREFIX_ADDR); + if (address_mode == mode_64bit) { if (!(sizeflag & AFLAG)) - s = names32[code - eAX_reg]; + s = names32[code - eAX_reg]; else - s = names64[code - eAX_reg]; + s = names64[code - eAX_reg]; } else if (sizeflag & AFLAG) s = names32[code - eAX_reg]; else s = names16[code - eAX_reg]; oappend (s); - if (intel_syntax) - oappend ("]"); - else - oappend (")"); + *obufp++ = close_char; + *obufp = 0; } static void -OP_ESreg (code, sizeflag) - int code; - int sizeflag; +OP_ESreg (int code, int sizeflag) { + if (intel_syntax) + intel_operand_size (codep[-1] & 1 ? v_mode : b_mode, sizeflag); oappend ("%es:" + intel_syntax); ptr_reg (code, sizeflag); } static void -OP_DSreg (code, sizeflag) - int code; - int sizeflag; +OP_DSreg (int code, int sizeflag) { + if (intel_syntax) + intel_operand_size (codep[-1] != 0xd7 && (codep[-1] & 1) + ? v_mode + : b_mode, + sizeflag); if ((prefixes & (PREFIX_CS | PREFIX_DS @@ -3798,22 +4147,25 @@ OP_DSreg (code, sizeflag) } static void -OP_C (dummy, sizeflag) - int dummy; - int sizeflag; +OP_C (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { int add = 0; - USED_REX (REX_EXTX); if (rex & REX_EXTX) - add = 8; + { + USED_REX (REX_EXTX); + add = 8; + } + else if (address_mode != mode_64bit && (prefixes & PREFIX_LOCK)) + { + used_prefixes |= PREFIX_LOCK; + add = 8; + } snprintf (scratchbuf, sizeof(scratchbuf), "%%cr%d", reg + add); oappend (scratchbuf + intel_syntax); } static void -OP_D (dummy, sizeflag) - int dummy; - int sizeflag; +OP_D (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { int add = 0; USED_REX (REX_EXTX); @@ -3827,18 +4179,14 @@ OP_D (dummy, sizeflag) } static void -OP_T (dummy, sizeflag) - int dummy; - int sizeflag; +OP_T (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { snprintf (scratchbuf, sizeof(scratchbuf), "%%tr%d", reg); oappend (scratchbuf + intel_syntax); } static void -OP_Rd (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_Rd (int bytemode, int sizeflag) { if (mod == 3) OP_E (bytemode, sizeflag); @@ -3847,26 +4195,24 @@ OP_Rd (bytemode, sizeflag) } static void -OP_MMX (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_MMX (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { - int add = 0; - USED_REX (REX_EXTX); - if (rex & REX_EXTX) - add = 8; used_prefixes |= (prefixes & PREFIX_DATA); if (prefixes & PREFIX_DATA) - snprintf (scratchbuf, sizeof(scratchbuf), "%%xmm%d", reg + add); + { + int add = 0; + USED_REX (REX_EXTX); + if (rex & REX_EXTX) + add = 8; + snprintf (scratchbuf, sizeof(scratchbuf), "%%xmm%d", reg + add); + } else - snprintf (scratchbuf, sizeof(scratchbuf), "%%mm%d", reg + add); + snprintf (scratchbuf, sizeof(scratchbuf), "%%mm%d", reg); oappend (scratchbuf + intel_syntax); } static void -OP_XMM (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_XMM (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { int add = 0; USED_REX (REX_EXTX); @@ -3877,39 +4223,54 @@ OP_XMM (bytemode, sizeflag) } static void -OP_EM (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_EM (int bytemode, int sizeflag) { - int add = 0; if (mod != 3) { + if (intel_syntax && bytemode == v_mode) + { + bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode; + used_prefixes |= (prefixes & PREFIX_DATA); + } OP_E (bytemode, sizeflag); return; } - USED_REX (REX_EXTZ); - if (rex & REX_EXTZ) - add = 8; /* Skip mod/rm byte. */ MODRM_CHECK; codep++; used_prefixes |= (prefixes & PREFIX_DATA); if (prefixes & PREFIX_DATA) - snprintf (scratchbuf, sizeof(scratchbuf), "%%xmm%d", rm + add); + { + int add = 0; + + USED_REX (REX_EXTZ); + if (rex & REX_EXTZ) + add = 8; + snprintf (scratchbuf, sizeof(scratchbuf), "%%xmm%d", rm + add); + } else - snprintf (scratchbuf, sizeof(scratchbuf), "%%mm%d", rm + add); + snprintf (scratchbuf, sizeof(scratchbuf), "%%mm%d", rm); oappend (scratchbuf + intel_syntax); } static void -OP_EX (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_EX (int bytemode, int sizeflag) { int add = 0; if (mod != 3) { + if (intel_syntax && bytemode == v_mode) + { + switch (prefixes & (PREFIX_DATA|PREFIX_REPZ|PREFIX_REPNZ)) + { + case 0: bytemode = x_mode; break; + case PREFIX_REPZ: bytemode = d_mode; used_prefixes |= PREFIX_REPZ; break; + case PREFIX_DATA: bytemode = x_mode; used_prefixes |= PREFIX_DATA; break; + case PREFIX_REPNZ: bytemode = q_mode; used_prefixes |= PREFIX_REPNZ; break; + default: bytemode = 0; break; + } + } OP_E (bytemode, sizeflag); return; } @@ -3925,9 +4286,7 @@ OP_EX (bytemode, sizeflag) } static void -OP_MS (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_MS (int bytemode, int sizeflag) { if (mod == 3) OP_EM (bytemode, sizeflag); @@ -3936,9 +4295,7 @@ OP_MS (bytemode, sizeflag) } static void -OP_XS (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_XS (int bytemode, int sizeflag) { if (mod == 3) OP_EX (bytemode, sizeflag); @@ -3946,6 +4303,55 @@ OP_XS (bytemode, sizeflag) BadOp (); } +static void +OP_M (int bytemode, int sizeflag) +{ + if (mod == 3) + BadOp (); /* bad lea,lds,les,lfs,lgs,lss modrm */ + else + OP_E (bytemode, sizeflag); +} + +static void +OP_0f07 (int bytemode, int sizeflag) +{ + if (mod != 3 || rm != 0) + BadOp (); + else + OP_E (bytemode, sizeflag); +} + +static void +OP_0fae (int bytemode, int sizeflag) +{ + if (mod == 3) + { + if (reg == 7) + strcpy (obuf + strlen (obuf) - sizeof ("clflush") + 1, "sfence"); + + if (reg < 5 || rm != 0) + { + BadOp (); /* bad sfence, mfence, or lfence */ + return; + } + } + else if (reg != 7) + { + BadOp (); /* bad clflush */ + return; + } + + OP_E (bytemode, sizeflag); +} + +static void +NOP_Fixup (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) +{ + /* NOP with REPZ prefix is called PAUSE. */ + if (prefixes == PREFIX_REPZ) + strcpy (obuf, "pause"); +} + static const char *Suffix3DNow[] = { /* 00 */ NULL, NULL, NULL, NULL, /* 04 */ NULL, NULL, NULL, NULL, @@ -4014,9 +4420,7 @@ static const char *Suffix3DNow[] = { }; static void -OP_3DNowSuffix (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_3DNowSuffix (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { const char *mnemonic; @@ -4052,9 +4456,7 @@ static const char *simd_cmp_op[] = { }; static void -OP_SIMD_Suffix (bytemode, sizeflag) - int bytemode; - int sizeflag; +OP_SIMD_Suffix (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) { unsigned int cmp_type; @@ -4094,9 +4496,7 @@ OP_SIMD_Suffix (bytemode, sizeflag) } static void -SIMD_Fixup (extrachar, sizeflag) - int extrachar; - int sizeflag; +SIMD_Fixup (int extrachar, int sizeflag ATTRIBUTE_UNUSED) { /* Change movlps/movhps to movhlps/movlhps for 2 register operand forms of these instructions. */ @@ -4112,9 +4512,334 @@ SIMD_Fixup (extrachar, sizeflag) } static void +PNI_Fixup (int extrachar ATTRIBUTE_UNUSED, int sizeflag) +{ + if (mod == 3 && reg == 1 && rm <= 1) + { + /* Override "sidt". */ + size_t olen = strlen (obuf); + char *p = obuf + olen - 4; + const char * const *names = (address_mode == mode_64bit + ? names64 : names32); + + /* We might have a suffix when disassembling with -Msuffix. */ + if (*p == 'i') + --p; + + /* Remove "addr16/addr32" if we aren't in Intel mode. */ + if (!intel_syntax + && (prefixes & PREFIX_ADDR) + && olen >= (4 + 7) + && *(p - 1) == ' ' + && strncmp (p - 7, "addr", 4) == 0 + && (strncmp (p - 3, "16", 2) == 0 + || strncmp (p - 3, "32", 2) == 0)) + p -= 7; + + if (rm) + { + /* mwait %eax,%ecx */ + strcpy (p, "mwait"); + if (!intel_syntax) + strcpy (op1out, names[0]); + } + else + { + /* monitor %eax,%ecx,%edx" */ + strcpy (p, "monitor"); + if (!intel_syntax) + { + const char * const *op1_names; + if (!(prefixes & PREFIX_ADDR)) + op1_names = (address_mode == mode_16bit + ? names16 : names); + else + { + op1_names = (address_mode != mode_32bit + ? names32 : names16); + used_prefixes |= PREFIX_ADDR; + } + strcpy (op1out, op1_names[0]); + strcpy (op3out, names[2]); + } + } + if (!intel_syntax) + { + strcpy (op2out, names[1]); + two_source_ops = 1; + } + + codep++; + } + else + OP_M (0, sizeflag); +} + +static void +SVME_Fixup (int bytemode, int sizeflag) +{ + const char *alt; + char *p; + + switch (*codep) + { + case 0xd8: + alt = "vmrun"; + break; + case 0xd9: + alt = "vmmcall"; + break; + case 0xda: + alt = "vmload"; + break; + case 0xdb: + alt = "vmsave"; + break; + case 0xdc: + alt = "stgi"; + break; + case 0xdd: + alt = "clgi"; + break; + case 0xde: + alt = "skinit"; + break; + case 0xdf: + alt = "invlpga"; + break; + default: + OP_M (bytemode, sizeflag); + return; + } + /* Override "lidt". */ + p = obuf + strlen (obuf) - 4; + /* We might have a suffix. */ + if (*p == 'i') + --p; + strcpy (p, alt); + if (!(prefixes & PREFIX_ADDR)) + { + ++codep; + return; + } + used_prefixes |= PREFIX_ADDR; + switch (*codep++) + { + case 0xdf: + strcpy (op2out, names32[1]); + two_source_ops = 1; + /* Fall through. */ + case 0xd8: + case 0xda: + case 0xdb: + *obufp++ = open_char; + if (address_mode == mode_64bit || (sizeflag & AFLAG)) + alt = names32[0]; + else + alt = names16[0]; + strcpy (obufp, alt); + obufp += strlen (alt); + *obufp++ = close_char; + *obufp = '\0'; + break; + } +} + +static void +INVLPG_Fixup (int bytemode, int sizeflag) +{ + const char *alt; + + switch (*codep) + { + case 0xf8: + alt = "swapgs"; + break; + case 0xf9: + alt = "rdtscp"; + break; + default: + OP_M (bytemode, sizeflag); + return; + } + /* Override "invlpg". */ + strcpy (obuf + strlen (obuf) - 6, alt); + codep++; +} + +static void BadOp (void) { /* Throw away prefixes and 1st. opcode byte. */ codep = insn_codep + 1; oappend ("(bad)"); } + +static void +SEG_Fixup (int extrachar, int sizeflag) +{ + if (mod == 3) + { + /* We need to add a proper suffix with + + movw %ds,%ax + movl %ds,%eax + movq %ds,%rax + movw %ax,%ds + movl %eax,%ds + movq %rax,%ds + */ + const char *suffix; + + if (prefixes & PREFIX_DATA) + suffix = "w"; + else + { + USED_REX (REX_MODE64); + if (rex & REX_MODE64) + suffix = "q"; + else + suffix = "l"; + } + strcat (obuf, suffix); + } + else + { + /* We need to fix the suffix for + + movw %ds,(%eax) + movw %ds,(%rax) + movw (%eax),%ds + movw (%rax),%ds + + Override "mov[l|q]". */ + char *p = obuf + strlen (obuf) - 1; + + /* We might not have a suffix. */ + if (*p == 'v') + ++p; + *p = 'w'; + } + + OP_E (extrachar, sizeflag); +} + +static void +VMX_Fixup (int extrachar ATTRIBUTE_UNUSED, int sizeflag) +{ + if (mod == 3 && reg == 0 && rm >=1 && rm <= 4) + { + /* Override "sgdt". */ + char *p = obuf + strlen (obuf) - 4; + + /* We might have a suffix when disassembling with -Msuffix. */ + if (*p == 'g') + --p; + + switch (rm) + { + case 1: + strcpy (p, "vmcall"); + break; + case 2: + strcpy (p, "vmlaunch"); + break; + case 3: + strcpy (p, "vmresume"); + break; + case 4: + strcpy (p, "vmxoff"); + break; + } + + codep++; + } + else + OP_E (0, sizeflag); +} + +static void +OP_VMX (int bytemode, int sizeflag) +{ + used_prefixes |= (prefixes & (PREFIX_DATA | PREFIX_REPZ)); + if (prefixes & PREFIX_DATA) + strcpy (obuf, "vmclear"); + else if (prefixes & PREFIX_REPZ) + strcpy (obuf, "vmxon"); + else + strcpy (obuf, "vmptrld"); + OP_E (bytemode, sizeflag); +} + +static void +REP_Fixup (int bytemode, int sizeflag) +{ + /* The 0xf3 prefix should be displayed as "rep" for ins, outs, movs, + lods and stos. */ + size_t ilen = 0; + + if (prefixes & PREFIX_REPZ) + switch (*insn_codep) + { + case 0x6e: /* outsb */ + case 0x6f: /* outsw/outsl */ + case 0xa4: /* movsb */ + case 0xa5: /* movsw/movsl/movsq */ + if (!intel_syntax) + ilen = 5; + else + ilen = 4; + break; + case 0xaa: /* stosb */ + case 0xab: /* stosw/stosl/stosq */ + case 0xac: /* lodsb */ + case 0xad: /* lodsw/lodsl/lodsq */ + if (!intel_syntax && (sizeflag & SUFFIX_ALWAYS)) + ilen = 5; + else + ilen = 4; + break; + case 0x6c: /* insb */ + case 0x6d: /* insl/insw */ + if (!intel_syntax) + ilen = 4; + else + ilen = 3; + break; + default: + abort (); + break; + } + + if (ilen != 0) + { + size_t olen; + char *p; + + olen = strlen (obuf); + p = obuf + olen - ilen - 1 - 4; + /* Handle "repz [addr16|addr32]". */ + if ((prefixes & PREFIX_ADDR)) + p -= 1 + 6; + + memmove (p + 3, p + 4, olen - (p + 3 - obuf)); + } + + switch (bytemode) + { + case al_reg: + case eAX_reg: + case indir_dx_reg: + OP_IMREG (bytemode, sizeflag); + break; + case eDI_reg: + OP_ESreg (bytemode, sizeflag); + break; + case eSI_reg: + OP_DSreg (bytemode, sizeflag); + break; + default: + abort (); + break; + } +} |