Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!utgpu!water!watmath!clyde!cbosgd!ihnp4!ptsfa!ames!ucbcad!ucbvax!hplabs!hp-pcd!hpcvlo!ftp From: ftp@hpcvlo.UUCP Newsgroups: comp.sys.ibm.pc Subject: Re: Strange 8086 CPU clones. Message-ID: <1610016@hpcvlo.HP.COM> Date: Mon, 6-Jul-87 12:31:28 EDT Article-I.D.: hpcvlo.1610016 Posted: Mon Jul 6 12:31:28 1987 Date-Received: Thu, 9-Jul-87 05:51:28 EDT References: <3995@vrdxhq.UUCP> Organization: Hewlett-Packard Co., Corvallis, OR, USA Lines: 3 Some versions of the 80x8x family of CPUs use the POP CS instruction as a means of extending the CPU's instruction set. I believe that the NEC Vx0 series of CPU's do this. Other's actually implement the POP CS instruction.