.NLIST TOC,SYM .TITLE $CVLOK .SBTTL ULBLIB 027 - Convert and Lock Page .IDENT \V01.00\ .PSECT .LIBC. .ENABL LC,GBL ; Copyright (c) 1998 by Mentec, Inc., Nashua, NH. ; All rights reserved ; ; This software is furnished under a license for use only on a ; single computer system and may be copied only with the ; inclusion of the above copyright notice. This software, or ; any other copies thereof, may not be provided or otherwise ; made available to any other person except for use on such ; system and to one who agrees to these license terms. Title ; to and ownership of the software shall at all times remain ; in Mentec, Inc. ; ; The information in this document is subject to change without ; notice and should not be construed as a commitment by Digital ; Equipment Corporation, or Mentec, Inc. ; ; Digital and Mentec assume no responsibility for the use or ; reliability of its software on equipment which is not supplied ; by Digital or Mentec, and listed in the Software Product ; Description. ;+ ; $CVLOK ; This routine converts a virtual address to a real address and locks the ; page in memory. ; ; R1 = virtual page address ; ; CALL $CVLOK ; ; C-bit = 0 => success ; R0 = dynamic memory address ; ; C-bit = 1 => failure of address conversion or locking ; R0, R1 = random ;- $CVLOK:: CALL $CVRL ;Convert virtual to real JMP $LCKPG ;Lock the page (return from there) .END