Re: Software for MS-DOS 1.25

From: Mia Magnusson <mia_at_plea.se>
Date: Tue, 17 Oct 2017 05:48:16 +0200
Message-ID: <20171017054816.00005185@plea.se>
Den Mon, 16 Oct 2017 08:25:11 +0100 skrev smf <smf@null.net>:
> Full screen programmes will either directly write to the frame
> buffer, output using int10h, or output ansi escape sequences using
> int 21h.

IIRC I've never seen any programs (except some small PD stuff or
similar) that uses ansi escape sequences and thus required loading of
ANSI.SYS back in the days. I may remember incorrectly though.

> Patching binaries so their direct framebuffer access goes through int 
> 10h calls would also not necessarily be crazy hard to do.

To me it seems like something that scans B0000 or B8000 memory for
changes would be the best place to start - since it will allow almost
all programs to run. If some special program feels too slow and is used
often then it might be a good idea to patch that specific program.

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Received on 2017-10-17 04:06:26

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