Path: utzoo!attcan!uunet!cbmvax!jesup From: jesup@cbmvax.UUCP (Randell Jesup) Newsgroups: comp.arch Subject: Re: The VAX Always Uses Fewer Instructions Keywords: VAX MIPS Message-ID: <4092@cbmvax.UUCP> Date: 23 Jun 88 19:41:49 GMT References: <6921@cit-vax.Caltech.Edu> <28200161@urbsdc> <10595@sol.ARPA> <1277@basser.oz> <270@laic.UUCP> Reply-To: jesup@cbmvax.UUCP (Randell Jesup) Organization: Commodore Technology, West Chester, PA Lines: 12 In article <270@laic.UUCP> darin@nova.laic.uucp (Darin Johnson) writes: >Perhaps it would be possible for someone to come up with an 'assembler-compiler' >that would accept a CISC instruction set and generate RISC code. This would >allow one to write using something like 'ADD mem-loc1 to mem-loc2 and store >in mem-loc3(R1)' without having write the 5 or 10 RISC lines of code. People already do this. For example, on the Rpm40, there are several "meta-instructions" that you can use, that actually produce a series of actual machine instructions. Examples are MUL, CALL, DIV, FPLDD, etc. -- Randell Jesup, Commodore Engineering {uunet|rutgers|ihnp4|allegra}!cbmvax!jesup