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Re: PC/XT/AT (inside) WIP topic [Re: Kale] #116987 03/04/20 12:58 PM
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R. Belmont Offline
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Nice! I think we support CP/M cards on pretty much every machine that has them now.

Re: PC/XT/AT (inside) WIP topic [Re: Kale] #116990 03/04/20 04:23 PM
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rfka01 Offline
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Thanks for emulating this card!
I knew of the Baby Blues series, but there are Apple II emulator cards for the PC as well smile

https://www.diskman.com/presents/trackstar/


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: PC/XT/AT (inside) WIP topic [Re: Kale] #116991 03/04/20 05:05 PM
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Yes, and the one for the C64.

Re: PC/XT/AT (inside) WIP topic [Re: Kale] #116998 03/05/20 08:36 PM
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rfka01 Offline
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I've uploaded an archive with ROMs, documentation and bootdisks for the NEC Multispeed EL to the FTP (cheating a bit because the character ROM comes from an online source for the HD model).
This must be one of the earliest examples for a PC with an integrated help system (it even has a dedicated key for it). Another special key is for the memory resident programs like telcom, notepad and others (this laptop was available with an internal 2400 Baud modem).


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Re: PC/XT/AT (inside) WIP topic [Re: Kale] #117011 03/08/20 07:23 PM
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What's the purpose of these X-ROMs or XL-ROMs on these ET4000 SVGA cards?

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

On the second card it's mainly repeats of

Code
�	

 !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: PC/XT/AT (inside) WIP topic [Re: Kale] #117012 03/08/20 08:14 PM
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Default CGA/EGA/VGA palettes? Gamma ramp? Hard to tell without seeing the raw hex.

Re: PC/XT/AT (inside) WIP topic [Re: Kale] #117013 03/08/20 08:45 PM
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rfka01 Offline
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I've uploaded the archives ... Siemens D620 and Diamond Speedstar ISA SVGA ... FTP's incoming folder smile


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: PC/XT/AT (inside) WIP topic [Re: Kale] #117014 03/09/20 03:40 PM
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The et4000 reference (http://www.bitsavers.org/components/tsengLabs/Tseng_Labs_ET4000_Graphics_Controller_1990.pdf) describes a Translation ROM which translates crtc writes to allow safe usage of various fixed sync monitors. The M24 does something similar but reversed to allow cga programs which write directly to the crtc to work correctly with its 640x400 monitor.

Last edited by crazyc; 03/09/20 03:42 PM.
Re: PC/XT/AT (inside) WIP topic [Re: Kale] #117015 03/09/20 06:09 PM
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rfka01 Offline
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Right, thanks! I dumped these as 27C512 EPROMs, so I hope the dumps are correct.


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
Re: Yay! More slushware [Re: Kale] #117102 03/31/20 10:18 PM
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[Linked Image from i.imgur.com]

The Zenith Z-248 ROM is complaining about its missing slushware smile


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