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From: pattis@cs.washington.edu (Richard Pattis)
Newsgroups: comp.lang.ada
Subject: Meridian Memory-Mapped Video Package
Message-ID: <12399@june.cs.washington.edu>
Date: 27 Jun 90 19:12:27 GMT
Organization: U of Washington, Computer Science, Seattle
Summary: Got one?
List-Id: <comp.lang.ada>

I am working through Marc J. Rochkind's book, "Advanced C Programming for
Displays".  I'd like to implement some of his code in Ada (using Meridian's
compiler mostly, for PCs).  I'd like to do both implementations (BIOS calls
and direct memory mapped).  But I'm having trouble getting the types and
representation specifications to work correctly.

Does anyone have such a package that they are willing to share?


Rich Pattis

PS: I'm aware of the material in Cohen's book "Ada as a second language", but
that code will not compile on my system (besides the typos, it seems that
meridian's record component offset must be even).  I tried a quick kludge,
using a 2 element array instead of char/attr components, but I'm not getting
the information to the screen, and instead clobbering memory.