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authorH.J. Lu <hjl.tools@gmail.com>2007-03-14 03:26:06 +0000
committerH.J. Lu <hjl.tools@gmail.com>2007-03-14 03:26:06 +0000
commitd796c0adf2056973411ac806b06661eaa3563eed (patch)
tree9f92030b41cf12b77e28db899884b4d8255651d1 /include
parentd1036acbe72ee838ccf0c876be94884246589641 (diff)
downloadbinutils-gdb-d796c0adf2056973411ac806b06661eaa3563eed.tar.gz
2007-03-13 H.J. Lu <hongjiu.lu@intel.com>
* i386.h (FloatDR): Removed. (i386_optab): Use FloatD and FloatD|FloatR instead of FloatDR.
Diffstat (limited to 'include')
-rw-r--r--include/opcode/ChangeLog7
-rw-r--r--include/opcode/i386.h26
2 files changed, 19 insertions, 14 deletions
diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog
index 2bec01c6593..6f28e82740a 100644
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@@ -1,9 +1,14 @@
+2007-03-13 H.J. Lu <hongjiu.lu@intel.com>
+
+ * i386.h (FloatDR): Removed.
+ (i386_optab): Use FloatD and FloatD|FloatR instead of FloatDR.
+
2007-03-01 Alan Modra <amodra@bigpond.net.au>
* spu-insns.h: Add soma double-float insns.
2007-02-20 Thiemo Seufer <ths@mips.com>
- Chao-Ying Fu <fu@mips.com>
+ Chao-Ying Fu <fu@mips.com>
* mips.h (OP_SH_BP, OP_MASK_BP): Add support for balign instruction.
(INSN_DSPR2): Add flag for DSP R2 instructions.
diff --git a/include/opcode/i386.h b/include/opcode/i386.h
index 8e602404a3c..9bccc68cd8c 100644
--- a/include/opcode/i386.h
+++ b/include/opcode/i386.h
@@ -31,7 +31,7 @@
This happens with all the non-commutative arithmetic floating point
operations with two register operands, where the source register is
- %st, and destination register is %st(i). See FloatDR below.
+ %st, and destination register is %st(i).
The affected opcode map is dceX, dcfX, deeX, defX. */
@@ -72,14 +72,6 @@ static const template i386_optab[] =
#define q_FP (q_Suf|NoRex64)
#define x_FP (x_Suf|FloatMF)
#define sl_FP (sl_Suf|FloatMF)
-#if SYSV386_COMPAT
-/* Someone forgot that the FloatR bit reverses the operation when not
- equal to the FloatD bit. ie. Changing only FloatD results in the
- destination being swapped *and* the direction being reversed. */
-#define FloatDR FloatD
-#else
-#define FloatDR (FloatD|FloatR)
-#endif
/* Move instructions. */
#define MOV_AX_DISP32 0xa0
@@ -683,11 +675,13 @@ static const template i386_optab[] =
{"faddp", 2, 0xdec0, X, 0, FP|ShortForm|Ugh, { FloatReg, FloatAcc, 0} },
/* subtract */
-{"fsub", 2, 0xd8e0, X, 0, FP|ShortForm|FloatDR, { FloatReg, FloatAcc, 0} },
{"fsub", 1, 0xd8e0, X, 0, FP|ShortForm, { FloatReg, 0, 0} },
#if SYSV386_COMPAT
+{"fsub", 2, 0xd8e0, X, 0, FP|ShortForm|FloatD, { FloatReg, FloatAcc, 0} },
/* alias for fsubp */
{"fsub", 0, 0xdee1, X, 0, FP|Ugh, { 0, 0, 0} },
+#else
+{"fsub", 2, 0xd8e0, X, 0, FP|ShortForm|FloatD|FloatR, { FloatReg, FloatAcc, 0} },
#endif
{"fsub", 1, 0xd8, 4, 0, sl_FP|Modrm, { LongMem|LLongMem, 0, 0} },
{"fisub", 1, 0xde, 4, 0, sl_FP|Modrm, { ShortMem|LongMem, 0, 0} },
@@ -706,11 +700,13 @@ static const template i386_optab[] =
#endif
/* subtract reverse */
-{"fsubr", 2, 0xd8e8, X, 0, FP|ShortForm|FloatDR, { FloatReg, FloatAcc, 0} },
{"fsubr", 1, 0xd8e8, X, 0, FP|ShortForm, { FloatReg, 0, 0} },
#if SYSV386_COMPAT
+{"fsubr", 2, 0xd8e8, X, 0, FP|ShortForm|FloatD, { FloatReg, FloatAcc, 0} },
/* alias for fsubrp */
{"fsubr", 0, 0xdee9, X, 0, FP|Ugh, { 0, 0, 0} },
+#else
+{"fsubr", 2, 0xd8e8, X, 0, FP|ShortForm|FloatD|FloatR, { FloatReg, FloatAcc, 0} },
#endif
{"fsubr", 1, 0xd8, 5, 0, sl_FP|Modrm, { LongMem|LLongMem, 0, 0} },
{"fisubr", 1, 0xde, 5, 0, sl_FP|Modrm, { ShortMem|LongMem, 0, 0} },
@@ -744,11 +740,13 @@ static const template i386_optab[] =
{"fmulp", 2, 0xdec8, X, 0, FP|ShortForm|Ugh, { FloatReg, FloatAcc, 0} },
/* divide */
-{"fdiv", 2, 0xd8f0, X, 0, FP|ShortForm|FloatDR, { FloatReg, FloatAcc, 0} },
{"fdiv", 1, 0xd8f0, X, 0, FP|ShortForm, { FloatReg, 0, 0} },
#if SYSV386_COMPAT
+{"fdiv", 2, 0xd8f0, X, 0, FP|ShortForm|FloatD, { FloatReg, FloatAcc, 0} },
/* alias for fdivp */
{"fdiv", 0, 0xdef1, X, 0, FP|Ugh, { 0, 0, 0} },
+#else
+{"fdiv", 2, 0xd8f0, X, 0, FP|ShortForm|FloatD|FloatR, { FloatReg, FloatAcc, 0} },
#endif
{"fdiv", 1, 0xd8, 6, 0, sl_FP|Modrm, { LongMem|LLongMem, 0, 0} },
{"fidiv", 1, 0xde, 6, 0, sl_FP|Modrm, { ShortMem|LongMem, 0, 0} },
@@ -767,11 +765,13 @@ static const template i386_optab[] =
#endif
/* divide reverse */
-{"fdivr", 2, 0xd8f8, X, 0, FP|ShortForm|FloatDR, { FloatReg, FloatAcc, 0} },
{"fdivr", 1, 0xd8f8, X, 0, FP|ShortForm, { FloatReg, 0, 0} },
#if SYSV386_COMPAT
+{"fdivr", 2, 0xd8f8, X, 0, FP|ShortForm|FloatD, { FloatReg, FloatAcc, 0} },
/* alias for fdivrp */
{"fdivr", 0, 0xdef9, X, 0, FP|Ugh, { 0, 0, 0} },
+#else
+{"fdivr", 2, 0xd8f8, X, 0, FP|ShortForm|FloatD|FloatR, { FloatReg, FloatAcc, 0} },
#endif
{"fdivr", 1, 0xd8, 7, 0, sl_FP|Modrm, { LongMem|LLongMem, 0, 0} },
{"fidivr", 1, 0xde, 7, 0, sl_FP|Modrm, { ShortMem|LongMem, 0, 0} },