dmem001.asm

嵌入式RMON,RMON为Remote monitor的缩写,基于SNMP为网络提供主动监控及错误告警,智能交换路由必备协议

;************************************************************************
;* MODULE INFORMATION*
;**********************
;*     FILE     NAME:       dmem001.asm
;*     SYSTEM   NAME:       
;*     ORIGINAL AUTHOR(S):  Paul Lemmers
;*     VERSION  NUMBER:     
;*     CREATION DATE:       1990/8/14
;*
;* DESCRIPTION: Contains dev_memcpy
;*              
;************************************************************************
;* CHANGES INFORMATION **
;************************
;* REVISION:    $Revision:   1.1  $
;* WORKFILE:    $Workfile:   dmem001.asm  $
;* LOGINFO:     $Log:   D:/CPROG/MYDEV/DEVLIB/VCS/DMEM001.ASV  $
;*              
;*                 Rev 1.1   17 Dec 1990 14:33:42   PAUL
;*              Function headers added
;*              
;*                 Rev 1.0   14 Aug 1990 14:39:48   PAUL
;*              Initial revision.
;************************************************************************/
;
	INCLUDE	cdev.inc


_TEXT	SEGMENT
;************************************************************************
;* NAME:        dev_memcpy
;* SYNOPSIS:    void far *dev_memcpy(void far *dest, void far *src,
;*                                   unsigned count);
;* DESCRIPTION: See C-runtime memcpy
;* UNMODIFIED REGISTERS:
;*              ds bp si di
;* RETURNS:     See C-runtime memcpy
;************************************************************************
	PUBLIC	_dev_memcpy
	dest  = 4
	src   = 8
	count = 0Ch
_dev_memcpy	PROC	NEAR
	push	bp
	mov	bp,sp
	push	ds
	push	si
	push	di

	mov	cx,[bp+count]	; get # of bytes
	lds	si,[bp+src]	; get source pointer
	les	di,[bp+dest]	; get destination pointer
	mov	ax,di
	mov	dx,es		; Prepare return value
	shr	cx,1		; count words
	rep movsw
	jnc	$L000		; jump if no last byte
	movsb			; copy last byte

$L000:	pop	di
	pop	si
	pop	ds
	pop	bp
	ret
_dev_memcpy	ENDP

_TEXT	ENDS

	END