aboutsummaryrefslogtreecommitdiff
path: root/opcodes
diff options
context:
space:
mode:
authorJan Beulich <jbeulich@suse.com>2022-08-03 08:59:46 +0200
committerJan Beulich <jbeulich@suse.com>2022-08-03 08:59:46 +0200
commit2c735193b829aff44b37244205334bf71be9b814 (patch)
tree619913e5ccd9959b8868ee013b74bdd9d869837b /opcodes
parent8aaafe957ceee581e691d2f7f984cb40c58f2b5e (diff)
downloadfsf-binutils-gdb-2c735193b829aff44b37244205334bf71be9b814.zip
fsf-binutils-gdb-2c735193b829aff44b37244205334bf71be9b814.tar.gz
fsf-binutils-gdb-2c735193b829aff44b37244205334bf71be9b814.tar.bz2
x86: also use D for MOVBE
First of all rename the meanwhile misleading Opcode_SIMD_FloatD, as it has also been used for KMOV* and BNDMOV. Then simplify the condition selecting which form if "reversing" to use - except for the MOV to/from control/debug/test registers all extended opcode space insns use bit 0 (rather than bit 1) to indicate the direction (from/to memory) of an operation. With that, D can simply be set on the first of the two templates, while the other can be dropped.
Diffstat (limited to 'opcodes')
-rw-r--r--opcodes/i386-opc.h2
-rw-r--r--opcodes/i386-opc.tbl3
-rw-r--r--opcodes/i386-tbl.h17
3 files changed, 3 insertions, 19 deletions
diff --git a/opcodes/i386-opc.h b/opcodes/i386-opc.h
index f79ffb7..248e576 100644
--- a/opcodes/i386-opc.h
+++ b/opcodes/i386-opc.h
@@ -928,7 +928,7 @@ typedef struct insn_template
unset if Regmem --> Reg. */
#define Opcode_FloatR 0x8 /* Bit to swap src/dest for float insns. */
#define Opcode_FloatD 0x400 /* Direction bit for float insns. */
-#define Opcode_SIMD_FloatD 0x1 /* Direction bit for SIMD fp insns. */
+#define Opcode_ExtD 0x1 /* Direction bit for extended opcode space insns. */
#define Opcode_SIMD_IntD 0x10 /* Direction bit for SIMD int insns. */
/* The next value is arbitrary, as long as it's non-zero and distinct
from all other values above. */
diff --git a/opcodes/i386-opc.tbl b/opcodes/i386-opc.tbl
index 6c89d5c..04159e1 100644
--- a/opcodes/i386-opc.tbl
+++ b/opcodes/i386-opc.tbl
@@ -161,8 +161,7 @@ movq, 0xf21, None, Cpu64, D|RegMem|Size64|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSu
mov, 0xf24, None, Cpu386|CpuNo64, D|RegMem|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf, { Test, Reg32 }
// Move after swapping the bytes
-movbe, 0x0f38f0, None, CpuMovbe, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Word|Dword|Qword|Unspecified|BaseIndex, Reg16|Reg32|Reg64 }
-movbe, 0x0f38f1, None, CpuMovbe, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64, Word|Dword|Qword|Unspecified|BaseIndex }
+movbe, 0x0f38f0, None, CpuMovbe, D|Modrm|No_bSuf|No_sSuf|No_ldSuf, { Word|Dword|Qword|Unspecified|BaseIndex, Reg16|Reg32|Reg64 }
// Move with sign extend.
// "movsbl" & "movsbw" must not be unified into "movsb" to avoid
diff --git a/opcodes/i386-tbl.h b/opcodes/i386-tbl.h
index 88a0fb7..976cfc5 100644
--- a/opcodes/i386-tbl.h
+++ b/opcodes/i386-tbl.h
@@ -488,7 +488,7 @@ const insn_template i386_optab[] =
{ { 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0 } } } },
{ "movbe", 0xf0, 2, None,
- { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0,
+ { 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
{ { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -502,21 +502,6 @@ const insn_template i386_optab[] =
0, 0, 0, 0, 1, 0 } },
{ { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0,
0, 0, 0, 0, 0, 0 } } } },
- { "movbe", 0xf1, 2, None,
- { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
- { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0 } },
- { { { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0,
- 0, 0, 0, 0, 0, 0 } },
- { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0,
- 0, 0, 0, 0, 1, 0 } } } },
{ "movsbl", 0xbe, 2, None,
{ 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0,