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gas/

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2007-12-23  H.J. Lu  <hongjiu.lu@intel.com>

	* config/tc-i386.c (set_intel_mnemonic): New.
	(intel_mnemonic): Likewise.
	(old_gcc): Likewise.
	(OPTION_MMNEMONIC): Likewise.
	(OPTION_MSYNTAX): Likewise.
	(OPTION_MINDEX_REG): Likewise.
	(OPTION_MNAKED_REG): Likewise.
	(OPTION_MOLD_GCC): Likewise.
	(md_pseudo_table): Add .intel_mnemonic and .att_mnemonic.
	(match_template): Don't allow AT&T/Intel mnemonic if Intel/AT&T
	mnemonic is specified.  Don't allow old gcc support if old_gcc
	is 0.
	(md_longopts): Add -mmnemonic, -msyntax, -mindex-reg,
	-mmnaked-reg and -mold-gcc.
	(md_parse_option): Handle OPTION_MMNEMONIC, OPTION_MSYNTAX,
	OPTION_MINDEX_REG, OPTION_MNAKED_REG and OPTION_MOLD_GCC.

	* doc/c-i386.texi: Docoument -mmnemonic, -msyntax, --mnaked-reg
	and AT&T mnemonic vs. Intel mnemonic.

gas/testsuite/

2007-12-23  H.J. Lu  <hongjiu.lu@intel.com>

	* gas/i386/compat-intel.d: Pass -mmnemonic=att to assembler.
	* gas/i386/compat.d: Likewise.

	* gas/i386/i386.exp: Pass -mmnemonic=att to assembler for
	"float".  Pass -mold-gcc to assembler for  "general".

opcodes/

2007-12-23  H.J. Lu  <hongjiu.lu@intel.com>

	* i386-gen.c (opcode_modifiers): Add OldGcc, ATTMnemonic and
	IntelMnemonic.

	* i386-opc.h (OldGcc): New.
	(ATTMnemonic): Likewise.
	(IntelMnemonic): Likewise.
	(Opcode_Modifier_Max): Updated.
	(i386_opcode_modifier): Add oldgcc, attmnemonic and
	intelmnemonic.

	* i386-opc.tbl: Update fadd, fdiv, fdivp, fdivr, fdivrp, fmul,
	fsub, fsubp, fsubr and fsubrp with OldGcc, ATTMnemonic and
	IntelMnemonic.
	* i386-tbl.h: Regeneratd.
This commit is contained in:
H.J. Lu
2007-12-24 05:27:39 +00:00
parent 896c3b60e9
commit 1efbbeb461
12 changed files with 3112 additions and 1551 deletions
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40
gas/doc/c-i386.texi
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@ -119,6 +119,29 @@ generated.
Valid @var{CPU} values are identical to @option{-march=@var{CPU}}.
@cindex @samp{-mmnemonic=} option, i386
@cindex @samp{-mmnemonic=} option, x86-64
@item -mmnemonic=@var{att}
@item -mmnemonic=@var{intel}
This option specifies instruction mnemonic for matching instructions.
The @code{.att_mnemonic} and @code{.intel_mnemonic} directives will
take precedent.
@cindex @samp{-msyntax=} option, i386
@cindex @samp{-msyntax=} option, x86-64
@item -msyntax=@var{att}
@item -msyntax=@var{intel}
This option specifies instruction syntax when processing instructions.
The @code{.att_syntax} and @code{.intel_syntax} directives will
take precedent.
@cindex @samp{-mnaked-reg} option, i386
@cindex @samp{-mnaked-reg} option, x86-64
@item -mnaked-reg
This opetion specifies that registers don't require a @samp{%} prefix.
The @code{.att_mnemonic}, @code{.intel_mnemonic}, @code{.att_syntax} and
@code{.intel_syntax} directives will take precedent.
@end table
@node i386-Syntax
@ -297,6 +320,23 @@ Far call/jump instructions are @samp{lcall} and @samp{ljmp} in
AT&T syntax, but are @samp{call far} and @samp{jump far} in Intel
convention.
@section AT&T Mnemonic versus Intel Mnemonic
@cindex i386 mnemonic compatibility
@cindex mnemonic compatibility, i386
@code{@value{AS}} supports assembly using Intel mnemonic.
@code{.intel_mnemonic} selects Intel mnemonic with Intel syntax, and
@code{.att_mnemonic} switches back to the usual AT&T mnemonic with AT&T
syntax for compatibility with the output of @code{@value{GCC}}.
Either of these directives may have an optional argument, @code{prefix},
or @code{noprefix} specifying whether registers require a @samp{%} prefix.
Several x87 instructions, @samp{fadd}, @samp{fdiv}, @samp{fdivp},
@samp{fdivr}, @samp{fdivrp}, @samp{fmul}, @samp{fsub}, @samp{fsubp},
@samp{fsubr} and @samp{fsubrp}, are implemented in AT&T System V/386
assembler with different mnemonics from those in Intel IA32 specification.
@code{@value{GCC}} generates those instructions with AT&T mnemonic.
@node i386-Regs
@section Register Naming