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Re: PC/XT/AT (inside) WIP topic
[Re: Kale]
#108461
01/15/17 02:23 PM
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Joined: Oct 2006
Posts: 980
Stiletto
Senior Member
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Senior Member
Joined: Oct 2006
Posts: 980 |
I emailed Nick once, a long time ago now...
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Re: PC/XT/AT (inside) WIP topic
[Re: Kale]
#108734
02/05/17 09:21 PM
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Joined: Jan 2012
Posts: 1,034
rfka01
Very Senior Member
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Very Senior Member
Joined: Jan 2012
Posts: 1,034 |
I have an ISA soundcard with an OPL4 to give away for free (taker only pays shipping) http://www.mirosupport.de/sound/pcm10/pcm10.htmlif someone wants to take a stab at emulating it.
NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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Re: PC/XT/AT (inside) WIP topic
[Re: Kale]
#108737
02/06/17 02:55 AM
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Joined: Mar 2001
Posts: 16,430
R. Belmont
Very Senior Member
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Very Senior Member
Joined: Mar 2001
Posts: 16,430 |
The YRW-801M instrument ROM is already dumped. Could you peel off the "MIRO" sticker on the chip at U12 and see what the markings are? (It'll likely be a micro controller of some sort).
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Re: PC/XT/AT (inside) WIP topic
[Re: Kale]
#108738
02/06/17 06:55 AM
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Joined: Jan 2012
Posts: 1,034
rfka01
Very Senior Member
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Very Senior Member
Joined: Jan 2012
Posts: 1,034 |
Ta-daa: 
NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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Re: PC/XT/AT (inside) WIP topic
[Re: Kale]
#108739
02/06/17 01:12 PM
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Joined: Mar 2001
Posts: 16,430
R. Belmont
Very Senior Member
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Very Senior Member
Joined: Mar 2001
Posts: 16,430 |
Ahh, ok. So yeah, there's likely nothing to dump from that outside of the instrument ROM. The 82c929 is an HLE SB16 + CD-ROM interface (a data sheet with register programming info is available), the AD1848 is the DAC for the SB16 audio, and the OPL4 handles the rest. So we don't need the card itself for emulation, just the drivers and whatever other software came with it.
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Re: PC/XT/AT (inside) WIP topic
[Re: Kale]
#109159
03/15/17 06:57 PM
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Joined: Jan 2012
Posts: 815
crazyc
Senior Member
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Senior Member
Joined: Jan 2012
Posts: 815 |
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Re: PC/XT/AT (inside) WIP topic
[Re: Kale]
#109160
03/15/17 08:25 PM
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Joined: Mar 2001
Posts: 16,430
R. Belmont
Very Senior Member
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Very Senior Member
Joined: Mar 2001
Posts: 16,430 |
One of the most famous demoscene Easter Eggs. Great soundtrack on the demo itself too.
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Re: PC/XT/AT (inside) WIP topic
[Re: crazyc]
#109447
04/27/17 05:10 AM
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Joined: May 2005
Posts: 28
Luigi30
Member
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Member
Joined: May 2005
Posts: 28 |
Tried to install OS/2 Warp 4 in at486 on a lark - the installation claimed to complete but after the "thanks for installing!" screen I got a big red error screen that said the installer couldn't get the installed hard drive letter. I'll see if I can figure out what's going on with it.
If you really want some funky PC hardware, I've got a Commodore A2286AT bridgeboard installed in my Amiga. It's a whole 286 PC on an Amiga Zorro card. I'm not sure how it would fit into everything (it's totally independent from the Amiga, communicating through dual-port RAM and some special BIOS functions, I have the developer manual) but I was able to locate dumps of all the onboard ROMs online. It doesn't boot just putting the BIOS into at.cpp but I didn't expect it to.
Last edited by Luigi30; 04/27/17 06:12 AM.
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Re: PC/XT/AT (inside) WIP topic
[Re: Kale]
#109468
04/28/17 05:24 AM
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Joined: Apr 2012
Posts: 188
Bavarese
Senior Member
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Senior Member
Joined: Apr 2012
Posts: 188 |
OS/2: there is a 1024 cylinder limit, which means you cannot work with hard disks beyond 504 MB. 1024 cylinders, 16 heads and 63 sectors. See thread
Last edited by Bavarese; 04/28/17 05:44 AM.
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