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| author | H.J. Lu <hjl.tools@gmail.com> | 2014-09-22 09:38:53 -0700 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2014-09-22 09:38:53 -0700 |
| commit | 68f34464821105e0c74a0ce16c5d26d4c3e1d20c (patch) | |
| tree | d2cde5142f9aee2b2bf582bb65e7bc6d4c6180af /opcodes | |
| parent | 20b23ee6c89b3c412f78017d777ca2d3d2937431 (diff) | |
| download | binutils-68f34464821105e0c74a0ce16c5d26d4c3e1d20c.zip binutils-68f34464821105e0c74a0ce16c5d26d4c3e1d20c.tar.gz binutils-68f34464821105e0c74a0ce16c5d26d4c3e1d20c.tar.bz2 | |
Ignore MOD field for control/debug register move
This patch ignores the MOD field in control/debug register move
instructions.
gas/testsuite/
* gas/i386/cdr.d: New file.
* gas/i386/cdr.s: Likewise.
* gas/i386/x86-64-cdr.d: Likewise.
* gas/i386/i386.exp: Run cdr and x86-64-cdr.
opcodes/
* i386-dis.c (MOD_0F20): Removed.
(MOD_0F21): Likewise.
(MOD_0F22): Likewise.
(MOD_0F23): Likewise.
(dis386_twobyte): Replace MOD_0F20, MOD_0F21, MOD_0F22 and
MOD_0F23 with "movZ".
(mod_table): Remove MOD_0F20, MOD_0F21, MOD_0F22 and MOD_0F23.
(OP_R): Check mod/rm byte and call OP_E_register.
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/ChangeLog | 11 | ||||
| -rw-r--r-- | opcodes/i386-dis.c | 40 |
2 files changed, 19 insertions, 32 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 42e09dd..e5bcb13 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,14 @@ +2014-09-22 H.J. Lu <hongjiu.lu@intel.com> + + * i386-dis.c (MOD_0F20): Removed. + (MOD_0F21): Likewise. + (MOD_0F22): Likewise. + (MOD_0F23): Likewise. + (dis386_twobyte): Replace MOD_0F20, MOD_0F21, MOD_0F22 and + MOD_0F23 with "movZ". + (mod_table): Remove MOD_0F20, MOD_0F21, MOD_0F22 and MOD_0F23. + (OP_R): Check mod/rm byte and call OP_E_register. + 2014-09-16 Kuan-Lin Chen <kuanlinchentw@gmail.com> * nds32-asm.c (nds32_opcodes, operand_fields, keyword_im5_i, diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index 79abe09..c7cfb55 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -753,10 +753,6 @@ enum MOD_0F1A_PREFIX_0, MOD_0F1B_PREFIX_0, MOD_0F1B_PREFIX_1, - MOD_0F20, - MOD_0F21, - MOD_0F22, - MOD_0F23, MOD_0F24, MOD_0F26, MOD_0F2B_PREFIX_0, @@ -2736,10 +2732,10 @@ static const struct dis386 dis386_twobyte[] = { { "nopQ", { Ev } }, { "nopQ", { Ev } }, /* 20 */ - { MOD_TABLE (MOD_0F20) }, - { MOD_TABLE (MOD_0F21) }, - { MOD_TABLE (MOD_0F22) }, - { MOD_TABLE (MOD_0F23) }, + { "movZ", { Rm, Cm } }, + { "movZ", { Rm, Dm } }, + { "movZ", { Cm, Rm } }, + { "movZ", { Dm, Rm } }, { MOD_TABLE (MOD_0F24) }, { Bad_Opcode }, { MOD_TABLE (MOD_0F26) }, @@ -11642,26 +11638,6 @@ static const struct dis386 mod_table[][2] = { { "nopQ", { Ev } }, }, { - /* MOD_0F20 */ - { Bad_Opcode }, - { "movZ", { Rm, Cm } }, - }, - { - /* MOD_0F21 */ - { Bad_Opcode }, - { "movZ", { Rm, Dm } }, - }, - { - /* MOD_0F22 */ - { Bad_Opcode }, - { "movZ", { Cm, Rm } }, - }, - { - /* MOD_0F23 */ - { Bad_Opcode }, - { "movZ", { Dm, Rm } }, - }, - { /* MOD_0F24 */ { Bad_Opcode }, { "movL", { Rd, Td } }, @@ -15892,10 +15868,10 @@ OP_T (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED) static void OP_R (int bytemode, int sizeflag) { - if (modrm.mod == 3) - OP_E (bytemode, sizeflag); - else - BadOp (); + /* Skip mod/rm byte. */ + MODRM_CHECK; + codep++; + OP_E_register (bytemode, sizeflag); } static void |