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Xref: sserve comp.arch:35818 comp.os.386bsd.questions:5099 Newsgroups: comp.arch,comp.os.386bsd.questions Path: sserve!newshost.anu.edu.au!munnari.oz.au!spool.mu.edu!howland.reston.ans.net!europa.eng.gtefsd.com!uunet!psinntp!nmtigw!peter From: peter@nmti.com (peter da silva) Subject: Re: PALcode Message-ID: <id.H4M21.B7J@nmti.com> Organization: Network/development platform support, NMTI References: <GRUNWALD.93Sep12113432@foobar.cs.colorado.edu> <2700niINN8fr@jhunix.hcf.jhu.edu> <CD9HsC.EIH.1@cs.cmu.edu> Date: Tue, 14 Sep 1993 14:43:01 GMT Lines: 14 In article <CD9HsC.EIH.1@cs.cmu.edu> lindsay+@cs.cmu.edu (Donald Lindsay) writes: > In practice, the extra instructions are for manipulating low-level > grunge, such as powerup and TLB refill. They have access to registers > which are otherwise invisible, and which are not defined in the Alpha > spec. What happens if someone wants to port a third-party operating system (like NetBSD, for example) to the Alpha? Do you have to make do with the published PALcode traps, or can you get documentation on the underlying architecture? -- Peter da Silva `-_-' Network Management Technology Incorporated 'U` 1601 Industrial Blvd. Sugar Land, TX 77478 USA +1 713 274 5180 "Hast Du heute schon Deinen Wolf umarmt?"