Path: utzoo!attcan!uunet!tektronix!tekecs!bruce From: bruce@blue.blue.gwd.tek.com (Bruce Robertson) Newsgroups: comp.sys.m68k Subject: Re: addq.w #n,sp and a pop quiz Message-ID: Date: 13 Dec 88 23:46:06 GMT References: <5005@bsu-cs.UUCP> <5460@cbmvax.UUCP> <1100@ncar.ucar.edu> <670@auspex.UUCP> <1737@oakhill.UUCP> Sender: nobody@tekecs.TEK.COM Distribution: na Organization: Tektronix ITD, Wilsonville, OR Lines: 10 In-reply-to: davet@oakhill.UUCP's message of 11 Dec 88 14:16:41 GMT > There is only one place in the instruction set where a data register is > implicitly sign-extended. Where? I see two, if you are allowing the 68020 instruction set. The one you're probably looking for is "moveq". The other is "bfexts", which I suppose may be said to be explicit because of the 's' in the mnemonic. -- -- Bruce Robertson bruce@blue.gwd.tek.com