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Monster Media 1993 #2
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FNNOT.ASM
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Assembly Source File
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1992-10-18
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1KB
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76 lines
; File......: FNNOT.ASM
; Author....: Ted Means
; CIS ID....: 73067,3332
; Date......: $Date$
; Revision..: $Revision$
; Log file..: $Logfile$
;
; This is an original work by Ted Means and is placed in the
; public domain.
;
; Modification history:
; ---------------------
;
; $Log$
;
; $DOC$
; $FUNCNAME$
; FN_NOT()
; $CATEGORY$
; Miscellaneous
; $ONELINER$
; Perform a bitwise NOT on an integer
; $SYNTAX$
;
; fn_not( <nInt> | <cInt> ) -> nResult
;
; $ARGUMENTS$
;
; <nInt> may either be a numeric integer, or a 16-bit character string
; that is the binary representation of a numeric integer.
;
; $RETURNS$
;
; <nResult>, a numeric
;
; $DESCRIPTION$
;
; The value returned is obtained by performing a bitwise NOT with
; <nInt> as the operand. If any parameters are invalid, the function
; will return zero.
;
; $EXAMPLES$
;
; nX := 0
; nNum := fn_not( nX )
; ? nNum // -32768
;
; $SEEALSO$
;
; $INCLUDE$
;
; $END$
;
;
IDEAL
PUBLIC FN_NOT
EXTRN __FNCBALL:FAR
SEGMENT _FNNET WORD PUBLIC "CODE"
ASSUME CS:_FNNET
PROC FN_NOT FAR
MOV AX,56F7h
MOV DX,0CBFAh
JMP __FNCBALL
ENDP FN_NOT
ENDS _FNNET
END