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Mon May 5 12:45:19 1997 H.J. Lu <hjl@gnu.ai.mit.edu> 

* i386.h: Remove W modifier from conditional move instructions.
gdb-4_18-branch
Ian Lance Taylor 30 years ago
parent
7a418800c1
commit
654b084539
2 changed files with 36 additions and 22 deletions
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  1. 10
      include/opcode/ChangeLog
  2. 48
      include/opcode/i386.h

10
include/opcode/ChangeLog
View File

@ -1,3 +1,13 @@
Mon May 5 12:45:19 1997 H.J. Lu <hjl@gnu.ai.mit.edu>
* i386.h: Remove W modifier from conditional move instructions.
Mon Apr 14 14:56:58 1997 Ian Lance Taylor <ian@cygnus.com>
* i386.h: Change the opcodes for fsubp, fsubrp, fdivp, and fdivrp
with no arguments to match that generated by the UnixWare
assembler.
Thu Apr 10 14:35:00 1997 Doug Evans <dje@canuck.cygnus.com>
* cgen.h (<cpu>_cgen_assemble_insn): New arg for errmsg.

48
include/opcode/i386.h
View File

@ -20,8 +20,8 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* The NON_BROKEN_OPCODES cases use the operands in the reverse order
from that documented in the Intel manuals. The opcode values are
such that they actually generate different instructions. These
values must not be changed, as existing code depends upon the
arguably erroneous behaviour. */
values must not be changed, as they are the values generated by the
UnixWare assembler, and possibly other ix86 assemblers. */
static const template i386_optab[] = {
@ -589,10 +589,11 @@ static const template i386_optab[] = {
{"fsubp", 2, 0xdee8, _, ShortForm, { FloatReg, FloatAcc, 0} },
#ifdef NON_BROKEN_OPCODES
{"fsubp", 2, 0xdee8, _, ShortForm, { FloatAcc, FloatReg, 0} },
{"fsubp", 0, 0xdee9, _, NoModrm, { 0, 0, 0} },
#else
{"fsubp", 2, 0xdee0, _, ShortForm, { FloatAcc, FloatReg, 0} },
{"fsubp", 0, 0xdee1, _, NoModrm, { 0, 0, 0} },
#endif
{"fsubp", 0, 0xdee9, _, NoModrm, { 0, 0, 0} },
{"fsubs", 1, 0xd8, 4, Modrm, { Mem, 0, 0} },
{"fisubl", 1, 0xda, 4, Modrm, { Mem, 0, 0} },
{"fsubl", 1, 0xdc, 4, Modrm, { Mem, 0, 0} },
@ -611,10 +612,11 @@ static const template i386_optab[] = {
{"fsubrp", 2, 0xdee0, _, ShortForm, { FloatReg, FloatAcc, 0} },
#ifdef NON_BROKEN_OPCODES
{"fsubrp", 2, 0xdee0, _, ShortForm, { FloatAcc, FloatReg, 0} },
{"fsubrp", 0, 0xdee1, _, NoModrm, { 0, 0, 0} },
#else
{"fsubrp", 2, 0xdee8, _, ShortForm, { FloatAcc, FloatReg, 0} },
{"fsubrp", 0, 0xdee9, _, NoModrm, { 0, 0, 0} },
#endif
{"fsubrp", 0, 0xdee1, _, NoModrm, { 0, 0, 0} },
{"fsubrs", 1, 0xd8, 5, Modrm, { Mem, 0, 0} },
{"fisubrl", 1, 0xda, 5, Modrm, { Mem, 0, 0} },
{"fsubrl", 1, 0xdc, 5, Modrm, { Mem, 0, 0} },
@ -648,10 +650,11 @@ static const template i386_optab[] = {
{"fdivp", 2, 0xdef8, _, ShortForm, { FloatReg, FloatAcc, 0} },
#ifdef NON_BROKEN_OPCODES
{"fdivp", 2, 0xdef8, _, ShortForm, { FloatAcc, FloatReg, 0} },
{"fdivp", 0, 0xdef9, _, NoModrm, { 0, 0, 0} },
#else
{"fdivp", 2, 0xdef0, _, ShortForm, { FloatAcc, FloatReg, 0} },
{"fdivp", 0, 0xdef1, _, NoModrm, { 0, 0, 0} },
#endif
{"fdivp", 0, 0xdef9, _, NoModrm, { 0, 0, 0} },
{"fdivs", 1, 0xd8, 6, Modrm, { Mem, 0, 0} },
{"fidivl", 1, 0xda, 6, Modrm, { Mem, 0, 0} },
{"fdivl", 1, 0xdc, 6, Modrm, { Mem, 0, 0} },
@ -670,10 +673,11 @@ static const template i386_optab[] = {
{"fdivrp", 2, 0xdef0, _, ShortForm, { FloatReg, FloatAcc, 0} },
#ifdef NON_BROKEN_OPCODES
{"fdivrp", 2, 0xdef0, _, ShortForm, { FloatAcc, FloatReg, 0} },
{"fdivrp", 0, 0xdef1, _, NoModrm, { 0, 0, 0} },
#else
{"fdivrp", 2, 0xdef8, _, ShortForm, { FloatAcc, FloatReg, 0} },
{"fdivrp", 0, 0xdef9, _, NoModrm, { 0, 0, 0} },
#endif
{"fdivrp", 0, 0xdef1, _, NoModrm, { 0, 0, 0} },
{"fdivrs", 1, 0xd8, 7, Modrm, { Mem, 0, 0} },
{"fidivrl", 1, 0xda, 7, Modrm, { Mem, 0, 0} },
{"fdivrl", 1, 0xdc, 7, Modrm, { Mem, 0, 0} },
@ -773,22 +777,22 @@ static const template i386_optab[] = {
/* Pentium Pro extensions */
{"rdpmc", 0, 0x0f33, _, NoModrm, { 0, 0, 0} },
{"cmovo", 2, 0x0f40, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovno", 2, 0x0f41, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovb", 2, 0x0f42, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovae", 2, 0x0f43, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmove", 2, 0x0f44, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovne", 2, 0x0f45, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovbe", 2, 0x0f46, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmova", 2, 0x0f47, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovs", 2, 0x0f48, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovns", 2, 0x0f49, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovp", 2, 0x0f4a, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovnp", 2, 0x0f4b, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovl", 2, 0x0f4c, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovge", 2, 0x0f4d, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovle", 2, 0x0f4e, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovg", 2, 0x0f4f, _, W|Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovo", 2, 0x0f40, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovno", 2, 0x0f41, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovb", 2, 0x0f42, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovae", 2, 0x0f43, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmove", 2, 0x0f44, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovne", 2, 0x0f45, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovbe", 2, 0x0f46, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmova", 2, 0x0f47, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovs", 2, 0x0f48, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovns", 2, 0x0f49, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovp", 2, 0x0f4a, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovnp", 2, 0x0f4b, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovl", 2, 0x0f4c, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovge", 2, 0x0f4d, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovle", 2, 0x0f4e, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"cmovg", 2, 0x0f4f, _, Modrm|ReverseRegRegmem, { WordReg|WordMem, WordReg, 0} },
{"fcmovb", 2, 0xdac0, _, ShortForm, { FloatReg, FloatAcc, 0} },
{"fcmove", 2, 0xdac8, _, ShortForm, { FloatReg, FloatAcc, 0} },

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