Path: utzoo!mnetor!uunet!lll-winken!lll-tis!ames!sgi!bron From: bron@olympus.SGI.COM (Bron C. Nelson) Newsgroups: comp.arch Subject: Re: RPM-40 microprocessor @ 40 MHz; dat Message-ID: <12076@sgi.SGI.COM> Date: 3 Mar 88 21:34:47 GMT References: <1642@mips.mips.COM> <28200116@ccvaxa> Sender: daemon@sgi.SGI.COM Organization: Silicon Graphics Inc, Mountain View, CA Lines: 11 Summary: Integer multiply on a RISC (Cray) In article <28200116@ccvaxa>, aglew@ccvaxa.UUCP writes: > If your customers spend time doing multiplies or divides, then your RISC > designer will put them in. Cray is the only "RISCy" machine that is widely > known with multiply that springs to mind, though. Same for floating point. FYI, The Cray XMP machines do NOT have hardware support for a general integer (64bit) multiply. They can do address length (24bit) integer multiplies. It has no hardware for integer divide (of any length). If you need these operations, you have to convert to floating point. ------ Bron Nelson bron@sgi.com Don't blame my employers for my opinions.