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Joined: May 2012
Posts: 568 Likes: 10
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Found some Force Computers manuals at mvme.com, could be useful. In particular, CPU-30 rev.4 manual describes the 68230 PIT
Last edited by shattered; 08/02/12 08:52 PM.
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Joined: May 2012
Posts: 568 Likes: 10
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With a bit of hackery, mc1502 how has diskette I/O. This machine had the usual cloned MS-DOS (nee Sigma-Four DOS) and something original called OTS (One Track System), for low-memory (128K) machines. DOS runs, OTS boots but hangs. Apparently, all existing dumps of OTS are bad -- there were extra tracks on original disks and boot loader is looking for them.
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Joined: May 2012
Posts: 568 Likes: 10
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UK-NC -- school computer (was not available in stores). Two CPUs (second CPU used for I/O, sound etc.) with PDP-11 instruction set, color graphics, sound, integrated keyboard, serial networking. Teacher's workstation also had dual 5" floppy drives, printer, and (sometimes) color monitor; several RT-11-derived operating systems were available, and lots of commercial educational software. Hackers over at zx.pk.ru [1] have found a hidden/poorly documented color mode (8 fixed palettes of 8 colors at low and high intensity, selectable for individual scan lines) and there's talk of porting/writing games for this hardware :-) [1] http://zx.pk.ru/showpost.php?p=570148&postcount=80Mock-up screenshots: ![[Linked Image from s019.radikal.ru]](http://s019.radikal.ru/i638/1301/8e/cb3b302588b3.png) ![[Linked Image from s55.radikal.ru]](http://s55.radikal.ru/i149/1301/23/fee7649ff59d.png)
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Joined: Mar 2001
Posts: 17,215 Likes: 234
Very Senior Member
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That's a nifty hack 
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Joined: May 2012
Posts: 568 Likes: 10
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And I think they're serious about porting Mario...
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Joined: Oct 2007
Posts: 300
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Senior Member
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Posts: 300 |
They "port" the screenshots, not the actual games, just to demonstrate the palette.
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Joined: May 2012
Posts: 568 Likes: 10
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I was talking about another forum thread -- http://zx.pk.ru/showthread.php?t=20758 (yes, I know that forum talk is cheap)
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Joined: May 2012
Posts: 568 Likes: 10
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Last edited by shattered; 02/11/13 07:41 PM. Reason: pics
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Joined: May 2012
Posts: 568 Likes: 10
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... and here's a WIP screenshot of an emulated 15IE talking to chargen TCP service: ![[Linked Image from img-fotki.yandex.ru]](http://img-fotki.yandex.ru/get/4120/264743.2/0_8917c_a2cc3733_XL.png.jpg) Now to locate the original Tetris...
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