Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cornell!rochester!udel!udccvax1!sine
From: sine@vax1.acs.udel.EDU (Patricia Sine)
Newsgroups: comp.sys.apple
Subject: Pascal 1.3 Assembly Language
Summary: How to distinguish low and high bytes
Message-ID: <2935@udccvax1.acs.udel.EDU>
Date: 27 Feb 89 18:34:20 GMT
References: <8350@paris.ics.uci.edu>
Reply-To: sine@vax1.acs.udel.EDU (Patricia Sine)
Distribution: usa
Organization: University of Delaware
Lines: 20

I am currently trying to interface some assembly routines to
use a TimeMaster clock to time in milliseconds.  The rest of the
program is in Pascal so I am trying to just add my program to
that.

Two questions:

1.  What is the syntax for accessing the low and high bytes of 
a two byte number?  My problem is that I have an address 
labeled in the code and I want to store the resulting address into
two bytes that I can access later.

2.  Is there a safe location where I can store $100 bytes and not
have Pascal move it?  Can I create such a location?  What parts 
of the $300 page does Pascal use?

Thanks for any help!

Pat Sine
sine@vax1.acs.udel.edu