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[binutils-gdb] x86: split MONITORX/MWAITX entries
- From: Jan Beulich <jbeulich at sourceware dot org>
- To: bfd-cvs at sourceware dot org
- Date: 5 Nov 2019 08:20:12 -0000
- Subject: [binutils-gdb] x86: split MONITORX/MWAITX entries
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=267b8516f2899ed24cd77cb9233b514c22506ecf
commit 267b8516f2899ed24cd77cb9233b514c22506ecf
Author: Jan Beulich <jbeulich@suse.com>
Date: Tue Nov 5 09:19:10 2019 +0100
x86: split MONITORX/MWAITX entries
Both encodings do not ignore the 66/F3/F2 prefixes, so don't have the
disassembler ignore them either.
Diff:
---
opcodes/ChangeLog | 7 +++++++
opcodes/i386-dis.c | 16 ++++++++++++++--
2 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog
index 14a1407..4f27092 100644
--- a/opcodes/ChangeLog
+++ b/opcodes/ChangeLog
@@ -1,5 +1,12 @@
2019-11-05 Jan Beulich <jbeulich@suse.com>
+ * i386-dis.c (PREFIX_0F01_REG_7_MOD_3_RM_2,
+ PREFIX_0F01_REG_7_MOD_3_RM_3): New.
+ (prefix_table): Add respective entries.
+ (rm_table): Link to those entries.
+
+2019-11-05 Jan Beulich <jbeulich@suse.com>
+
* i386-dis.c (REG_0F1C_MOD_0): Rename to ...
(REG_0F1C_P_0_MOD_0): ... this.
(REG_0F1E_MOD_3): Rename to ...
diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c
index d1d8b55..11a9e33 100644
--- a/opcodes/i386-dis.c
+++ b/opcodes/i386-dis.c
@@ -964,6 +964,8 @@ enum
PREFIX_0F01_REG_5_MOD_0,
PREFIX_0F01_REG_5_MOD_3_RM_0,
PREFIX_0F01_REG_5_MOD_3_RM_2,
+ PREFIX_0F01_REG_7_MOD_3_RM_2,
+ PREFIX_0F01_REG_7_MOD_3_RM_3,
PREFIX_0F09,
PREFIX_0F10,
PREFIX_0F11,
@@ -3643,6 +3645,16 @@ static const struct dis386 prefix_table[][4] = {
{ "saveprevssp", { Skip_MODRM }, PREFIX_OPCODE },
},
+ /* PREFIX_0F01_REG_7_MOD_3_RM_2 */
+ {
+ { "monitorx", { { OP_Monitor, 0 } }, 0 },
+ },
+
+ /* PREFIX_0F01_REG_7_MOD_3_RM_3 */
+ {
+ { "mwaitx", { { OP_Mwaitx, 0 } }, 0 },
+ },
+
/* PREFIX_0F09 */
{
{ "wbinvd", { XX }, 0 },
@@ -11016,8 +11028,8 @@ static const struct dis386 rm_table[][8] = {
/* RM_0F01_REG_7_MOD_3 */
{ "swapgs", { Skip_MODRM }, 0 },
{ "rdtscp", { Skip_MODRM }, 0 },
- { "monitorx", { { OP_Monitor, 0 } }, 0 },
- { "mwaitx", { { OP_Mwaitx, 0 } }, 0 },
+ { PREFIX_TABLE (PREFIX_0F01_REG_7_MOD_3_RM_2) },
+ { PREFIX_TABLE (PREFIX_0F01_REG_7_MOD_3_RM_3) },
{ "clzero", { Skip_MODRM }, 0 },
},
{