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- Path: comma.rhein.de!serpens!not-for-mail
- From: mlelstv@serpens.rhein.de (Michael van Elst)
- Newsgroups: comp.sys.amiga.hardware,comp.sys.amiga.misc
- Subject: Re: Alpha for A4000/3000 ???
- Date: 13 Mar 1996 17:01:26 +0100
- Organization: dis-
- Message-ID: <4i6rgm$adk@serpens.rhein.de>
- References: <Pine.SGI.3.91.960228010747.11624C-100000@tvdcomm.gsfc.nasa.gov> <4hn7sh$fc4@news.rhrz.uni-bonn.de> <4hp0bf$cac@serpens.rhein.de> <31468314.BC9@plea.se>
- NNTP-Posting-Host: serpens.rhein.de
-
- Jonas Elfstrom <jonas@plea.se> writes:
-
- >> No. It is just generally fast, and thus fast when emulating other processors.
-
- >Actually it is very good emulating because you can reprogram it's microcode.
-
- I wonder when this rumour dies out.
-
- Alpha doesn't use microcode. Alpha knows something called PALcode.
-
- PALcode are routines executed from the PALcall instructions (i.e. some fixed
- instruction word, you can't use this to interpret different machine code).
- The PALcode routines are special in that they execute with disabled interrupts
- and allow access to implementation-specific registers.
-
- --
- Michael van Elst
-
- Internet: mlelstv@serpens.rhein.de
- "A potential Snark may lurk in every tree."
-