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From: tim@cit-vax.Caltech.Edu (Timothy L. Kay)
Newsgroups: comp.sys.ibm.pc
Subject: Help with Hercules clone
Message-ID: <4200@cit-vax.Caltech.Edu>
Date: Fri, 16-Oct-87 02:07:26 EDT
Article-I.D.: cit-vax.4200
Posted: Fri Oct 16 02:07:26 1987
Date-Received: Sat, 17-Oct-87 17:35:31 EDT
Reply-To: tim@cit-vax.UUCP (Timothy L. Kay)
Distribution: na
Organization: California Institute of Technology
Lines: 14

A long time ago, I wrote a program for a Hercules card.  I used the
information supplied in the Hercules manual to set the 6845 registers.
The program runs on the real Hercules card.

Now I have a clone card, and it exhibits some peculiar behaviour
with respect to the original program.  If I try to run the program
just after the machine has booted, the monitor doesn't sync to the
graphics signal produced by the clone machine.

However, if I run SuperCalc3 and exit immediately (SC3 followed by /qy),
then my program works properly.  What could the SC3 program be setting
that my program is not?

Tim