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| author | H.J. Lu <hjl.tools@gmail.com> | 2022-12-02 18:43:20 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2022-12-03 08:55:40 -0800 |
| commit | 859aa2c86dc9721424d96584879385a18ccf76ed (patch) | |
| tree | ac18e5d21dbd85c8ddf575ed9b698a2c3fbc6cb5 /opcodes/i386-dis.c | |
| parent | 8169d2a118c45f8a79cb3e00039ec1d01e994d9c (diff) | |
| download | gdb-859aa2c86dc9721424d96584879385a18ccf76ed.zip gdb-859aa2c86dc9721424d96584879385a18ccf76ed.tar.gz gdb-859aa2c86dc9721424d96584879385a18ccf76ed.tar.bz2 | |
x86: Allow 16-bit register source for LAR and LSL
Since LAR and LSL only access 16 bits of the source operand, regardless
of operand size, allow 16-bit register source for LAR and LSL, and always
disassemble LAR and LSL with 16-bit source operand.
gas/
PR gas/29844
* testsuite/gas/i386/i386.s: Add tests for LAR and LSL.
* testsuite/gas/i386/x86_64.s: Likewise.
* testsuite/gas/i386/intelbad.s: Remove "lar/lsl eax, ax".
* testsuite/gas/i386/i386-intel.d: Updated.
* testsuite/gas/i386/i386.d: Likewise.
* testsuite/gas/i386/intel-intel.d: Likewise.
* testsuite/gas/i386/intel.d: Likewise.
* testsuite/gas/i386/intelbad.l: Likewise.
* testsuite/gas/i386/x86_64-intel.d: Likewise.
* testsuite/gas/i386/x86_64.d: Likewise.
opcodes/
PR gas/29844
* i386-dis.c (MOD_0F02): Removed.
(MOD_0F03): Likewise.
(dis386_twobyte): Restore larS and lslS.
(mod_table): Remove MOD_0F02 and MOD_0F03.
* i386-opc.tbl: Allow 16-bit register source for LAR and LSL.
* i386-tbl.h: Regenerated.
Diffstat (limited to 'opcodes/i386-dis.c')
| -rw-r--r-- | opcodes/i386-dis.c | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index edc2ce9..e43666a 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -833,8 +833,6 @@ enum MOD_0F01_REG_3, MOD_0F01_REG_5, MOD_0F01_REG_7, - MOD_0F02, - MOD_0F03, MOD_0F12_PREFIX_0, MOD_0F12_PREFIX_2, MOD_0F13, @@ -2117,8 +2115,8 @@ static const struct dis386 dis386_twobyte[] = { /* 00 */ { REG_TABLE (REG_0F00 ) }, { REG_TABLE (REG_0F01 ) }, - { MOD_TABLE (MOD_0F02) }, - { MOD_TABLE (MOD_0F03) }, + { "larS", { Gv, Ew }, 0 }, + { "lslS", { Gv, Ew }, 0 }, { Bad_Opcode }, { "syscall", { XX }, 0 }, { "clts", { XX }, 0 }, @@ -8200,16 +8198,6 @@ static const struct dis386 mod_table[][2] = { { RM_TABLE (RM_0F01_REG_7_MOD_3) }, }, { - /* MOD_0F02 */ - { "larS", { Gv, Mw }, 0 }, - { "larS", { Gv, Ev }, 0 }, - }, - { - /* MOD_0F03 */ - { "lslS", { Gv, Mw }, 0 }, - { "lslS", { Gv, Ev }, 0 }, - }, - { /* MOD_0F12_PREFIX_0 */ { "movlpX", { XM, EXq }, 0 }, { "movhlps", { XM, EXq }, 0 }, |