Path: utzoo!utgpu!utstat!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!ucbvax!decwrl!amdcad!danm From: danm@amdcad.AMD.COM (Daniel Mann) Newsgroups: comp.arch Subject: Re: Register usage Message-ID: <25642@amdcad.AMD.COM> Date: 16 May 89 00:01:04 GMT References: <259@mindlink.UUCP> <8104@killer.Dallas.TX.US> <25633@amdcad.AMD.COM> <25635@amdcad.AMD.COM> Reply-To: danm@amdcad.UUCP (Daniel Mann) Organization: Advanced Micro Devices Lines: 33 In article <25635@amdcad.AMD.COM> rpw3@amdcad.UUCP (Rob Warnock) writes: +--------------- | ... And Unix doesn't care (both 4.3 & S5r3 run). I suspect the real | reason you don't see 29k-based Unix workstations is that it just wasn't | quite there during the window that a bunch of people were choosing their | RISC/Unix CPU. "Missed the wave", as it were. [Who knows, it may see | some Unix use yet, by those who'd rather not compete directly with other | SPARC/MIPS/88k vendors.] +--------------- AMD wishes to support customers developing UNIX systems based upon the Am29000. Therefore, the complete source code for a port of 4.3bsd UNIX to the Am29000 is available to any licensed AT&T user. The 4.3bsd Berkeley UNIX currently runs on the AMD PC Execution Board (PCEB29K), which plugs into the PC-bus of an IBM-PC/XT/AT or compatible. It is a simple and inexpensive implementation of the Am29000 architecture, utilising a video-RAM memory. The PC is used as an I/O server. A detailed application note entitled "4.3bsd Unix and the PCEB" is available which discusses the 4.3 port. It is suitable reading for experienced UNIX system programmers wishing to understand Am29000 issues. Designers of new Am29000 systems may wish to evaluate the experience gained in the PCEB port before committing to any new hardware design. For a copy of the application note or for further information about obtaining the Am29000 4.3bsd Unix software, call or write: CONTACT: Daniel Mann, Am29000 Software Development Supervisor ADDRESS: AMD, 901 Thompson Place, MS 6, Po Box 3453, Sunnyvale, CA94088 PHONE: 408 7495058 E-MAIL: danm@amdcad.amd.com