osdep.mac

来自「dos 1.0 其中包含quick basic源代码、内存管理himem emm」· MAC 代码 · 共 34 行

;***
;* $Workfile:   osdep.mac  $
;* $Revision:   1.0  $
;*   $Author:   Dave Sewell  $
;*     $Date:   28 Apr 1989 17:00:06  $
;*
;* Macros which are different between XENIX and MS-DOS assemblies.
;*
;* NOTE:  This file does not need to be included directly, because it is
;* included by "dos.mac".
;***

.8086

MSDOS		EQU	1

;*** Macro for the 80286 "leave" instruction. ***

leave	    MACRO
	    MOV     SP, BP
	    POP     BP
	    ENDM

seterrno    MACRO
	    MOV     _errno, AX
	    XOR     AX, AX
	    DEC     AX
	    ENDM

intdos	    MACRO   function
	    MOV     AH, function
	    INT     21H
	    ENDM