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From: alfter@nevada.edu (SCOTT ALFTER)
Newsgroups: comp.sys.apple2
Subject: Re: ML subroutines (passing parameters in ML)
Message-ID: <1991Apr30.170428.17156@nevada.edu>
Date: 30 Apr 91 17:04:28 GMT
References: <3397@kluge.fiu.edu> <13845@ucrmath.ucr.edu> <1991Apr29.203359.250@...!asuvax!gtephx>
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In article <1991Apr29.203359.250@...!asuvax!gtephx> campbellb@...!asuvax!gtephx (Brian Campbell) writes:
>I thought that the 65816 had a stack addressing mode that allows one to
>"random" access values on the stack (which is not present
>on the 6502).  It looks like this: (i,S) which I take to mean, access the
>word at offset i relative to the Stack pointer.

Not present on the 6502?  You could always do a TSX followed by a
LDA $100,X to do that.  (Want even more random access?  The stack is
in a fixed location; just grab a byte anywhere from $100 to $1FF.)

Scott Alfter-----------------------------_/_----------------------------
Call the Skunk Works BBS (702) 896-2676 / v \ 6 PM-6 AM 300/1200/2400
Internet: alfter@uns-helios.nevada.edu (    ( Apple II:
   GEnie: S.ALFTER                      \_^_/ the power to be your best!