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

	* i386.h: Remove W modifier from conditional move instructions.

diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog
index 417b139..accc90a 100644 (file)
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@@ -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.

diff --git a/include/opcode/i386.h b/include/opcode/i386.h
index 0d44de7..1ee5a03 100644 (file)
--- a/include/opcode/i386.h
+++ b/include/opcode/i386.h
@@ -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} },