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Originally Posted by shattered
SM 7238 aka T3300 -- yet another DECclone, likely not of a DEC original, but of something compatible -- this one is Intel MCS80-based, with no character generator chip. Technical manual is rather good, and mentions a graphics option with Tek 401x and ReGIS features.


Manual + schematics = working double-size chars and smooth scroll:

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Cyrillic glyphs aren't very polished, though, compared with vt240-clone (mc7105).




Last edited by shattered; 03/12/17 02:15 PM.
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I've submitted a skeleton of agat7 driver (https://github.com/mamedev/mame/pull/2146) -- lots to do until it's final, but many games already work:

Blitz clone

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Pac-Man variant, with guns

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Mario Bros. hack

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Heh. 48K Apple II games could pretty much be mechanically ported to anything with a 6502 and an agreeable memory map.

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WIP -- Microsoft bus mouse clone + WordStar clone (ec1841 driver):

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Originally Posted by shattered
Agat floppies are either 140K GCR (format is identical to Apple's) and 840K MFM (80 tracks, 2 heads, 21 sectors, 256 bytes per sector), but the address marks etc. aren't standard: https://raw.githubusercontent.com/sintech/AGAT/master/docs/agat-840k-format.txt


Quick and dirty HLE of this 840K controller appears to work -- the rest of emulation, not so much. Alice in Wonderland translation patch doesn't go beyond these startup screens:

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Originally Posted by R. Belmont
Heh. 48K Apple II games could pretty much be mechanically ported to anything with a 6502 and an agreeable memory map.


Here's another find (from http://agatcomp.ru/Pravetz/SuperGames.shtml) -- apple2-based arcade board (fits inside the CRT case) with Mario translation patch

Not in MAME (yet :))

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seems like Russia is the new Korea, but more creative in terms of what systems they hacked up ;-)

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Heh, that's great. Lemme see what I can do with it smile

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More agat9 wip. Plenty of emulation details are missing (notably the LLE of floppy board), but at least it passes memory banking test and some unprotected (or cracked) software runs:

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Some intro screens while I work on (= copy and paste R.Belmont's code smile ) on apple2 video mode. There are all business apps (spreadsheets, databases &c). Most of the time apps don't run further than that...

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