[comp.sys.apple] Pascal 1.3 Assembly Language

sine@vax1.acs.udel.EDU (Patricia Sine) (02/28/89)

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