diff options
Diffstat (limited to 'include/opcode')
| -rw-r--r-- | include/opcode/ChangeLog | 10 | ||||
| -rw-r--r-- | include/opcode/i386.h | 48 |
2 files changed, 36 insertions, 22 deletions
diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog index 417b139..accc90a 100644 --- 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 --- 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} }, |