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Mail Archives: djgpp/1994/01/17/09:21:22

Date: Mon, 17 Jan 94 08:54:12 -0500
From: DJ Delorie <dj AT ctron DOT com>
To: mmoss AT panix DOT com
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Subject: Re: Using second monitor....

> I modified my SET GO32=  line and added "mono topline 1rm 2rm", then tried
> a sample program, which simply took two integer variables, assigned them
> values, then printed out the result using printf(). When I run the program,
> the machine reboots. However, if I run the program without the "mono...." in
> the SET GO32= ... , it works.
>
> What gives?

Are you sure that you don't have a program loaded in that memory?  You
might have told QEMM to dump a TSR up there.  Use "exclude=b000-b100"
to avoid that.

> Additionally (although this doesn't apply to DJGPP), does anyone know what the
> BIOS call to switch monitors (or something like that) is? Also, can the 2nd
> monitor be used with the BC++3.1 debugger?

I can use it with tdebug by giving "/do" (display - other) on the
command line.  To switch monitors, you have to set a memory location
(the equipment byte) and then do a int10 mode switch.


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