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ERRNO.ASM
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Assembly Source File
|
1988-03-15
|
566b
|
28 lines
;----------------------------------------------------------
; _errno
;
; Purpose:
; Provides means for signalling that an error has taken
; place.
;
; Possible values:
; EDOM (33) - invalid paramater passed.
; ERANGE (34) - overflow.
;
; Comments:
; If a calling routine will be testing _errno,
; it must first reset the variable to zero to
; be sure that an error code is not left over
; from some previous call.
;----------------------------------------------------------
.MODEL SMALL
PUBLIC _errno
.DATA
_errno DW 0
END