dhlp018.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:       dhlp018.asm
;*     SYSTEM   NAME:       devlib
;*     ORIGINAL AUTHOR(S):  Paul Lemmers
;*     VERSION  NUMBER:     
;*     CREATION DATE:       1990/8/21
;*
;* DESCRIPTION: 
;*              Contains DevHelp AllocPhys function.
;************************************************************************
;* CHANGES INFORMATION **
;************************
;* REVISION:    $Revision:   1.1  $
;* WORKFILE:    $Workfile:   dhlp018.asm  $
;* LOGINFO:     $Log:   D:/CPROG/MYDEV/DEVLIB/VCS/DHLP018.ASV  $
;*              
;*                 Rev 1.1   17 Dec 1990 14:31:06   PAUL
;*              included devhlp.inc and os2def.h types
;*              
;*                 Rev 1.0   03 Sep 1990 15:03:14   PAUL
;*              Initial revision.
;************************************************************************/
;
	INCLUDE	cdev.inc
	INCLUDE	devhlp.inc


_DATA	SEGMENT
	EXTRN	_DevHelp:DWORD
_DATA	ENDS

_TEXT	SEGMENT
	PUBLIC	_dev_AllocPhys
;************************************************************************
;* NAME:        _dev_AllocPhys
;* SYNOPSIS:    USHORT dev_AllocPhys(ULONG cSize, USHORT pos, PULONG pPhys)
;*              ULONG  cSize;   Length of memory
;*              USHORT pos;     Block position
;*              PULONG *pPhys;  Pointer to 32-bit physical address
;* DESCRIPTION: See DevHelp documentation of AllocPhys.
;* UNMODIFIED REGISTERS:
;*              ds bp si di
;* RETURNS:     ax = 0 -->   no error
;*              else    error code
;************************************************************************
	cSize   = 4
	pos    = 8
	pPhys  = 0Ah
_dev_AllocPhys	PROC	NEAR
	PUSH	BP
	MOV	BP,SP

	mov	bx,[bp+cSize]
	mov	ax,[bp+cSize+2]
	mov	dh,[bp+pos]
	mov	dl,DevHlp_AllocPhys
	call	[_DevHelp]
	jc	$L000		; jump if error
	mov	cx,bx		; save low word
	les	bx,[bp+pPhys]
	mov	es:[bx],cx	; store low word
	mov	es:[bx+2],ax	; store high word
	xor	ax,ax

$L000:	POP	BP
	RET
_dev_AllocPhys	ENDP

_TEXT	ENDS

	END