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ASM.INC
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1991-02-21
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140 lines
.xlist
page 63,128
.model small
ASSUME ds:nothing
; includelib lib
bptr equ byte ptr
wptr equ word ptr
dptr equ dword ptr
stdin equ 0
stdout equ 1
stderr equ 2
FILENAME_MAX equ 80
FOPEN_MAX equ 20
ZER0 equ 0
NULL_POINTER equ 0
NULL_HANDLE equ 0
NULL_CHAR equ 0
TAB_CHAR equ 9
EOL_CHAR equ 10 ; end of line
LF_CHAR equ 10 ; linefeed
CR_CHAR equ 13 ; carriage return
SPACE_CHAR equ ' '
NEWLINE_CHARS equ 0A0Dh
BLOCK_SIZE equ 16384 ; size of an EMS block
; MACROs
; smart CMP marco
;
cmpx macro dst,src
if src eq 0
or dst,dst
else
cmp dst,src
endif
endm
; smart MOV macro
;
movx macro dst,src
ifidn <src>,<DGROUP_SEGMENT>
push ss
pop dst
exitm
endif
if (type src) eq 0 ; if register or constant AND
if ((.type src) and 11100b) eq 0 ; if not any register AND
if src eq 0 ; if source is zero
sub dst,dst ; then efficiently 0 register
exitm
endif
endif
endif
mov dst,src
endm
; OPTASM macros
;
IFNDEF .date ; if not OPTASM
.sall ; don't show macro contents
extb macro a,b,c,d,e,f,g,h,i,j,k
irp xx,<a,b,c,d,e,f,g,h,i,j,k>
ifnb <xx>
extrn xx:byte
else
exitm
endif
endm
endm
extd macro a,b,c,d,e,f,g,h,i,j,k
irp xx,<a,b,c,d,e,f,g,h,i,j,k>
ifnb <xx>
extrn xx:dword
else
exitm
endif
endm
endm
extn macro a,b,c,d,e,f,g,h,i,j,k
irp xx,<a,b,c,d,e,f,g,h,i,j,k>
ifnb <xx>
extrn xx:near
else
exitm
endif
endm
endm
extw macro a,b,c,d,e,f,g,h,i,j,k
irp xx,<a,b,c,d,e,f,g,h,i,j,k>
ifnb <xx>
extrn xx:word
else
exitm
endif
endm
endm
pushm macro a,b,c,d,e,f,g,h,i,j,k
irp xx,<a,b,c,d,e,f,g,h,i,j,k>
ifnb <xx>
push xx
else
exitm
endif
endm
endm
popm macro a,b,c,d,e,f,g,h,i,j,k
irp xx,<a,b,c,d,e,f,g,h,i,j,k>
ifnb <xx>
pop xx
else
exitm
endif
endm
endm
ENDIF ; end MASM/TASM macros
.list ; end of asm.inc