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Remove %ME and used %NE for movbe.

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%ME is added specifically for movbe. Now with %NE, we can use
MOD table + %NE to indicate whether a {evex} prefix is needed.

opcodes/ChangeLog:

        * i386-dis-evex-mod.h: Added movbe.
        * i386-dis-evex.h: Let movbe go through the mod table.
        * i386-dis.c (struct dis386): Removed %ME.
        (putop): Removed case ME.
This commit is contained in:
Cui, Lili
2024-06-18 10:46:31 +08:00
parent d8ba1c4037
commit f7b1fe8dc4
3 changed files with 14 additions and 10 deletions
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10
opcodes/i386-dis-evex-mod.h
View File

@@ -1,3 +1,13 @@
/* MOD_EVEX_MAP4_60 */
{
{ "movbeS", { Gv, Mv }, PREFIX_NP_OR_DATA },
{ "%NEmovbeS", { Gv, Ev }, PREFIX_NP_OR_DATA },
},
/* MOD_EVEX_MAP4_61 */
{
{ "movbeS", { Mv, Gv }, PREFIX_NP_OR_DATA },
{ "%NEmovbeS", { Ev, Gv }, PREFIX_NP_OR_DATA },
},
/* MOD_EVEX_MAP4_F8_P1 */
{
{ "enqcmds", { Gva, M }, 0 },

4
opcodes/i386-dis-evex.h
View File

@@ -983,8 +983,8 @@ static const struct dis386 evex_table[][256] = {
{ Bad_Opcode },
{ Bad_Opcode },
/* 60 */
{ "%MEmovbeS", { Gv, Ev }, PREFIX_NP_OR_DATA },
{ "%MEmovbeS", { Ev, Gv }, PREFIX_NP_OR_DATA },
{ MOD_TABLE (MOD_EVEX_MAP4_60) },
{ MOD_TABLE (MOD_EVEX_MAP4_61) },
{ Bad_Opcode },
{ Bad_Opcode },
{ Bad_Opcode },

10
opcodes/i386-dis.c
View File

@@ -960,6 +960,8 @@ enum
MOD_VEX_0F3849_X86_64_L_0_W_0,
MOD_EVEX_MAP4_60,
MOD_EVEX_MAP4_61,
MOD_EVEX_MAP4_F8_P_1,
MOD_EVEX_MAP4_F8_P_3,
};
@@ -1800,9 +1802,6 @@ struct dis386 {
"XV" => print "{vex} " pseudo prefix
"XE" => print "{evex} " pseudo prefix if no EVEX-specific functionality is
is used by an EVEX-encoded (AVX512VL) instruction.
"ME" => print "{evex} " pseudo prefix for ins->modrm.mod != 3,if no
EVEX-specific functionality is used by an EVEX-encoded (AVX512VL)
instruction.
"NF" => print "{nf} " pseudo prefix when EVEX.NF = 1 and print "{evex} "
pseudo prefix when instructions without NF, EGPR and VVVV,
"NE" => don't print "{evex} " pseudo prefix for some special instructions
@@ -10527,11 +10526,6 @@ putop (instr_info *ins, const char *in_template, int sizeflag)
/* Skip printing {evex} for some special instructions in MAP4. */
evex_printed = true;
break;
case 'M':
if (ins->modrm.mod != 3 && !(ins->rex2 & 7))
oappend (ins, "{evex} ");
evex_printed = true;
break;
default:
abort ();
}