Trying to fix the PC emu I wrote 3 years ago \ VOGONS

Trying to fix the PC emu I wrote 3 years ago

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First post, by usotsuki

Posted on 2015-08-19, 02:00

usotsuki Offline

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Posts: 5
Joined: 2015-08-19, 01:49

http://3.buric.co/lunac-000-2012073122-nodisks.zip

This isn't a release, and there's some gunk in there specifically because I needed stuff to test. Obviously, an actual release wouldn't have a VGA BIOS (I'm not emulating a VGA), but right now it won't run without it.

I started with a cpu core someone else provided me. I think the core has some bugs - as can be seen by doing DIR COMMAND.COM in DOS 2.

I don't want to emulate VGA, I want to emulate Tandy + Hercules graphics (I currently emulate CGA) but my emulation isn't good enough to get by without the VGA firmware.

DOS 1.x won't work right, I get tons of disk read errors.

DOS 3.1-4.01 and DOSPLUS won't boot all the way.

I probably seriously hosed some stuff, but I have no idea where to go from here.

Reply 1 of 1, by usotsuki

Posted on 2015-08-19, 21:52

usotsuki Offline

Rank Newbie

Rank: Newbie
Posts: 5
Joined: 2015-08-19, 01:49

A little more info.

There's several hacks in the code which I need to remove.

I am currently working on a separate fork that starts to add some of the stuff I want that goes beyond 5150 emulation, which will probably be where I eventually go with this thing:

but it certainly needs a lot of work to be usable even from this point.

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