Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!rutgers!iuvax!ux1.cso.uiuc.edu!cs122aw
From: cs122aw@ux1.cso.uiuc.edu (Scott Alfter)
Newsgroups: comp.sys.apple
Subject: Re: WDM mnemonic
Message-ID: <1990Feb5.200051.12066@ux1.cso.uiuc.edu>
Date: 5 Feb 90 20:00:51 GMT
References: <158@fawlty.towers.oz>
Organization: University of Illinois at Urbana
Lines: 11

Here's a possibility.  The 65816's instruction set, including the "WDM"
mnemonic, is full.  All 256 positions are taken.  What, however, if they want
to add new features in the future?  They'll use this one code that's left as
a type of "hook" to open up another set of 256 "sub-opcodes."  This setup would
be like the "&" command in BASIC.

Scott Alfter-------------------------------------------------------------------
Internet: cs122aw@ux1.cso.uiuc.edu    _/_ Apple IIe: the power to be your best!
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