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https://github.com/netwide-assembler/nasm.git
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b287ff0ddb
bnd and nobnd prifixes can be used for each instruction line to direct whether bnd registers should be preserved or not. And those are also added as options for DEFAULT directive. Once bnd is set with default, DEFAULT BND, all bnd-prefix available instructions are prefixed with bnd. To override it, nobnd prefix can be used. In the other way, DEFAULT NOBND can disable DEFAULT BND and have nasm encode in the normal way. Signed-off-by: Jin Kyu Song <jin.kyu.song@intel.com>
228 lines
5.6 KiB
Plaintext
228 lines
5.6 KiB
Plaintext
;; --------------------------------------------------------------------------
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;;
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;; Copyright 1996-2009 The NASM Authors - All Rights Reserved
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;; See the file AUTHORS included with the NASM distribution for
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;; the specific copyright holders.
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;;
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;; Redistribution and use in source and binary forms, with or without
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;; modification, are permitted provided that the following
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;; conditions are met:
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;;
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;; * Redistributions of source code must retain the above copyright
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;; notice, this list of conditions and the following disclaimer.
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;; * Redistributions in binary form must reproduce the above
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;; copyright notice, this list of conditions and the following
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;; disclaimer in the documentation and/or other materials provided
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;; with the distribution.
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;;
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;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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;; CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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;; INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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;; MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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;; DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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;; CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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;; SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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;; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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;; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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;; CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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;; OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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;; EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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;;
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;; --------------------------------------------------------------------------
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; Standard macro set for NASM -*- nasm -*-
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; Macros to make NASM ignore some TASM directives before the first include
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; directive.
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%idefine IDEAL
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%idefine JUMPS
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%idefine P386
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%idefine P486
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%idefine P586
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%idefine END
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; This is a magic token which indicates the end of the TASM macros
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*END*TASM*MACROS*
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; Note that although some user-level forms of directives are defined
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; here, not all of them are: the user-level form of a format-specific
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; directive should be defined in the module for that directive.
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; These three need to be defined, though the actual definitions will
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; be constantly updated during preprocessing.
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%define __FILE__
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%define __LINE__
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%define __BITS__
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%define __SECT__ ; it ought to be defined, even if as nothing
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%imacro section 1+.nolist
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%define __SECT__ [section %1]
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__SECT__
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%endmacro
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%imacro segment 1+.nolist
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%define __SECT__ [segment %1]
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__SECT__
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%endmacro
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%define __SECTALIGN_ALIGN_UPDATES_SECTION__ 1
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%imacro sectalign 1.nolist
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%ifnum %1
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%if __SECTALIGN_ALIGN_UPDATES_SECTION__ = 1
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[sectalign %1]
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%endif
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%else
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%ifidni %1,off
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%define __SECTALIGN_ALIGN_UPDATES_SECTION__ 0
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%elifidni %1,on
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%define __SECTALIGN_ALIGN_UPDATES_SECTION__ 1
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%endif
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%endif
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%endmacro
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%imacro absolute 1+.nolist
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%define __SECT__ [absolute %1]
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__SECT__
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%endmacro
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%imacro struc 1-2.nolist 0
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%push
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%define %$strucname %1
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[absolute %2]
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%$strucname: ; allow definition of `.member' to work sanely
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%endmacro
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%imacro endstruc 0.nolist
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%{$strucname}_size equ ($-%$strucname)
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%pop
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__SECT__
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%endmacro
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%imacro istruc 1.nolist
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%push
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%define %$strucname %1
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%$strucstart:
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%endmacro
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%imacro at 1-2+.nolist
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times (%1-%$strucname)-($-%$strucstart) db 0
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%2
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%endmacro
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%imacro iend 0.nolist
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times %{$strucname}_size-($-%$strucstart) db 0
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%pop
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%endmacro
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%imacro align 1-2+.nolist nop
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sectalign %1
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times (((%1) - (($-$$) % (%1))) % (%1)) %2
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%endmacro
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%imacro alignb 1-2+.nolist
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sectalign %1
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%ifempty %2
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resb (((%1) - (($-$$) % (%1))) % (%1))
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%else
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times (((%1) - (($-$$) % (%1))) % (%1)) %2
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%endif
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%endmacro
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%imacro extern 1-*.nolist
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%rep %0
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[extern %1]
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%rotate 1
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%endrep
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%endmacro
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%imacro bits 1+.nolist
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[bits %1]
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%endmacro
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%imacro use16 0.nolist
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[bits 16]
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%endmacro
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%imacro use32 0.nolist
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[bits 32]
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%endmacro
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%imacro use64 0.nolist
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[bits 64]
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%endmacro
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%imacro global 1-*.nolist
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%rep %0
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[global %1]
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%rotate 1
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%endrep
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%endmacro
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%imacro common 1-*.nolist
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%rep %0
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[common %1]
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%rotate 1
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%endrep
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%endmacro
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%imacro cpu 1+.nolist
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[cpu %1]
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%endmacro
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%define __FLOAT_DAZ__ nodaz
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%define __FLOAT_ROUND__ near
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; __FLOAT__ contains the whole floating-point configuration so it can
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; be saved and restored
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%define __FLOAT__ __FLOAT_DAZ__,__FLOAT_ROUND__
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%imacro float 1-*.nolist
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%rep %0
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[float %1]
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%ifidni %1,daz
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%define __FLOAT_DAZ__ daz
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%elifidni %1,nodaz
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%define __FLOAT_DAZ__ nodaz
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%elifidni %1,near
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%define __FLOAT_ROUND__ near
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%elifidni %1,up
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%define __FLOAT_ROUND__ up
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%elifidni %1,down
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%define __FLOAT_ROUND__ down
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%elifidni %1,zero
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%define __FLOAT_ROUND__ zero
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%elifidni %1,default
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%define __FLOAT_DAZ__ nodaz
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%define __FLOAT_ROUND__ near
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%endif
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%rotate 1
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%endrep
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%endmacro
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%imacro default 1+.nolist
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[default %1]
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%endmacro
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%imacro userel 0.nolist
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[default rel]
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%endmacro
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%imacro useabs 0.nolist
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[default abs]
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%endmacro
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%imacro usebnd 0.nolist
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[default bnd]
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%endmacro
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%imacro usenobnd 0.nolist
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[default nobnd]
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%endmacro
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%imacro incbin 1-2+.nolist 0
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%push
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%pathsearch %$dep %1
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%depend %$dep
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%? %$dep,%2
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%pop
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%endmacro
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