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Re: ex- USSR and Soviet Bloc hardware [Re: shattered] #114800
03/04/19 01:52 PM
03/04/19 01:52 PM
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shattered Offline OP
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Robotron PC-1715W (yet another CP/M machine) WIP:

[Linked Image]

After that it does something that Z80DMA doesn't like and crashes MAME with fatal error ("Unknown base register").

Last edited by shattered; 03/04/19 05:59 PM.
Re: ex- USSR and Soviet Bloc hardware [Re: shattered] #114818
03/11/19 10:04 PM
03/11/19 10:04 PM
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shattered Offline OP
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Wikipedia says that some games for PC-1715 used printer for sound effects (bell, paper feed) - that'd be fun to emulate smile

Re: ex- USSR and Soviet Bloc hardware [Re: shattered] #114862
03/16/19 11:05 PM
03/16/19 11:05 PM
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shattered Offline OP
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Originally Posted by shattered
Turns out there were 3 variants of video boards -- ABS K7071 (text only), ABG K7072 (dumb framebuffer) and ABG K7075 (7220-based). The latter two are driven by KGS K7070 (terminal emulator with downloadable software).

K7072 wip:

[Linked Image]


WIP -- KES is a clone of iSBC-215 storage controller, but it's different internally (Z80 + Z80DMA + Z80CTC instead of 8089) and will need new code:

[Linked Image]

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