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| author | Jan Beulich <jbeulich@novell.com> | 2017-11-14 08:43:26 +0100 |
|---|---|---|
| committer | Jan Beulich <jbeulich@suse.com> | 2017-11-14 08:43:26 +0100 |
| commit | be92cb147d77d0ebc6a084a18627d800a9da9f95 (patch) | |
| tree | a886bbf83c8c93a664d9f0fcd149d0f342e9156e /opcodes | |
| parent | 2645e1d0798da9487def06d14bb744c33dba702d (diff) | |
| download | gdb-be92cb147d77d0ebc6a084a18627d800a9da9f95.zip gdb-be92cb147d77d0ebc6a084a18627d800a9da9f95.tar.gz gdb-be92cb147d77d0ebc6a084a18627d800a9da9f95.tar.bz2 | |
x86: add disassembler support for XOP VPCOM* pseudo-ops
Matching up with the assembler, which already supports them.
Diffstat (limited to 'opcodes')
| -rw-r--r-- | opcodes/ChangeLog | 5 | ||||
| -rw-r--r-- | opcodes/i386-dis.c | 70 |
2 files changed, 67 insertions, 8 deletions
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 2dbc8a6..68cbfcc 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,5 +1,10 @@ 2017-11-14 Jan Beulich <jbeulich@suse.com> + * i386-dis.c (VPCOM_Fixup, VPCOM, xop_cmp_op): New. + (vex_len_table): Use VPCOM. + +2017-11-14 Jan Beulich <jbeulich@suse.com> + * i386-dis-evex.h (evex_table[EVEX_W_0F3A3E_P_2]): Use VPCMP. (evex_table[EVEX_W_0F3A3F_P_2]): Likewise. * i386-opc.tbl (vpcmpeqb, vpcmpgtb, vpcmpeqw, vpcmpgtw, vpcmpuw, diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index 1734be8..b4d2305 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -99,6 +99,7 @@ static void VEXI4_Fixup (int, int); static void VZERO_Fixup (int, int); static void VCMP_Fixup (int, int); static void VPCMP_Fixup (int, int); +static void VPCOM_Fixup (int, int); static void OP_0f07 (int, int); static void OP_Monitor (int, int); static void OP_Mwait (int, int); @@ -441,6 +442,7 @@ fetch_data (struct disassemble_info *info, bfd_byte *addr) #define VZERO { VZERO_Fixup, 0 } #define VCMP { VCMP_Fixup, 0 } #define VPCMP { VPCMP_Fixup, 0 } +#define VPCOM { VPCOM_Fixup, 0 } #define EXxEVexR { OP_Rounding, evex_rounding_mode } #define EXxEVexS { OP_Rounding, evex_sae_mode } @@ -10192,42 +10194,42 @@ static const struct dis386 vex_len_table[][2] = { /* VEX_LEN_0FXOP_08_CC */ { - { "vpcomb", { XM, Vex128, EXx, Ib }, 0 }, + { "vpcomb", { XM, Vex128, EXx, VPCOM }, 0 }, }, /* VEX_LEN_0FXOP_08_CD */ { - { "vpcomw", { XM, Vex128, EXx, Ib }, 0 }, + { "vpcomw", { XM, Vex128, EXx, VPCOM }, 0 }, }, /* VEX_LEN_0FXOP_08_CE */ { - { "vpcomd", { XM, Vex128, EXx, Ib }, 0 }, + { "vpcomd", { XM, Vex128, EXx, VPCOM }, 0 }, }, /* VEX_LEN_0FXOP_08_CF */ { - { "vpcomq", { XM, Vex128, EXx, Ib }, 0 }, + { "vpcomq", { XM, Vex128, EXx, VPCOM }, 0 }, }, /* VEX_LEN_0FXOP_08_EC */ { - { "vpcomub", { XM, Vex128, EXx, Ib }, 0 }, + { "vpcomub", { XM, Vex128, EXx, VPCOM }, 0 }, }, /* VEX_LEN_0FXOP_08_ED */ { - { "vpcomuw", { XM, Vex128, EXx, Ib }, 0 }, + { "vpcomuw", { XM, Vex128, EXx, VPCOM }, 0 }, }, /* VEX_LEN_0FXOP_08_EE */ { - { "vpcomud", { XM, Vex128, EXx, Ib }, 0 }, + { "vpcomud", { XM, Vex128, EXx, VPCOM }, 0 }, }, /* VEX_LEN_0FXOP_08_EF */ { - { "vpcomuq", { XM, Vex128, EXx, Ib }, 0 }, + { "vpcomuq", { XM, Vex128, EXx, VPCOM }, 0 }, }, /* VEX_LEN_0FXOP_09_80 */ @@ -17621,6 +17623,58 @@ VPCMP_Fixup (int bytemode ATTRIBUTE_UNUSED, } } +static const struct op xop_cmp_op[] = +{ + { STRING_COMMA_LEN ("lt") }, + { STRING_COMMA_LEN ("le") }, + { STRING_COMMA_LEN ("gt") }, + { STRING_COMMA_LEN ("ge") }, + { STRING_COMMA_LEN ("eq") }, + { STRING_COMMA_LEN ("neq") }, + { STRING_COMMA_LEN ("false") }, + { STRING_COMMA_LEN ("true") } +}; + +static void +VPCOM_Fixup (int bytemode ATTRIBUTE_UNUSED, + int sizeflag ATTRIBUTE_UNUSED) +{ + unsigned int cmp_type; + + FETCH_DATA (the_info, codep + 1); + cmp_type = *codep++ & 0xff; + if (cmp_type < ARRAY_SIZE (xop_cmp_op)) + { + char suffix[3]; + char *p = mnemonicendp - 2; + + /* vpcom* can have both one- and two-lettered suffix. */ + if (p[0] == 'm') + { + p++; + suffix[0] = p[0]; + suffix[1] = '\0'; + } + else + { + suffix[0] = p[0]; + suffix[1] = p[1]; + suffix[2] = '\0'; + } + + sprintf (p, "%s%s", xop_cmp_op[cmp_type].name, suffix); + mnemonicendp += xop_cmp_op[cmp_type].len; + } + else + { + /* We have a reserved extension byte. Output it directly. */ + scratchbuf[0] = '$'; + print_operand_value (scratchbuf + 1, 1, cmp_type); + oappend_maybe_intel (scratchbuf); + scratchbuf[0] = '\0'; + } +} + static const struct op pclmul_op[] = { { STRING_COMMA_LEN ("lql") }, |