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Re: Can a PS/2 Keyboard be incompatible with a computer or is something just broken?

Posted on 2023-09-22, 15:34

^ Not sure if it's true for this particular PC model, though. 🤷‍♂️ Edit: I think it would be helpful if there's a manual available somewhere. Such computers were quite odd at times. Edit: There is. The technical manual is available on the site linked in first posting. It says as follows: "Security …

Re: Trident 8900D, 26 pin expansion port?

Posted on 2023-09-21, 16:24

in Marvin \ Video
look up VESA or VGA " feature connector " for more info. Ugh... I swear I used the Google Machine... I think my case I narrowed it down to "8900D feature connector" which doesn't really show much. So close... I guess question lays at... has anyone here... been able to make their own "feature" to …

Re: FM synth - native/direct vs. through MIDI?

Posted on 2023-09-20, 21:14

in Marvin \ Sound
AdLib port, 388h, is pretty much always fixed in games unless the game allows you to tell that for a specific card. I’ve disassembled various games for the CMS and Tandy patching projects and no game ever started with 380h and then had 8 added to a register or a variable. [..] I see. I shouldn't …

Re: FM synth - native/direct vs. through MIDI?

Posted on 2023-09-20, 13:10

in Marvin \ Sound
I always thought the "math" is for the scale of the tones. Hi there, good point. I was referring to "calculation" of the offset for the FM chip. The BLASTER variable merely holds information for the base address of the SB specific part and optionally, MPU-401 and EMU8000. It roughly looks like this …

Re: PC 3270 (aka IBM 5271) emulation

Posted on 2023-09-20, 08:35

in PC Emulation
The astronomy program StarView has PC 3270 support.. https://archive.org/details/msdos_festival_STARVIEW "[..] The following files are required for operation of StarView: StarView.EXE executable program StarView.IDs Bayer and/or Flamsteed IDs (text) StarView.NAM Common names of certain stars (text) …

Re: FM synth - native/direct vs. through MIDI?

Posted on 2023-09-20, 04:57

in Marvin \ Sound
Hm, you're right it seems. My bad, SB FM is listening for center/mono at base address +8/9h (and the old AdLib ports), as you also pointed out. For some reason I had mistaken the address of the left FM channel (SB Pro etc) for mono sound. I suppose that was because left audio often is used for mono …

Re: Adlib clone questions.

Posted on 2023-09-19, 11:06

I never soldered those headers or connected any address pads and my card works fine at default address? Did I miss something? I thought the same. *sigh* 🙄 Back in the day it wasn't uncommon to have something hard-wired being cut by the user with a knife. Normally, that default connection was a very …

Re: CGA/MDA/HGC test program

Posted on 2023-09-18, 19:11

The idea is: don't bother creating graphics data especially for Hercules, instead use the CGA 320 x 200 x 2bpp data as 640 x 200 x 1bpp. This is a completely correct observation. While you present this statement in the context of games with "pseudo-native" HGC support, that the key idea of treating …

Re: A graphics that can max out P3

Posted on 2023-09-18, 10:46

in Marvin \ Video
Geforce GF210 PCI? It's based on GF9, I vaguely remember. The selection depends on the OS, I think. Windows XP is no problem, but 98SE doesn't have drivers. Personally, I would stay away from anything Geforce 5/6/7. I had them in the 2000s, caused nothing but compatibility issues. If retro games are …

Re: IBM PS/2 Model 30

Posted on 2023-09-17, 15:03

May I ask if the original IBM PS/2 monitor is part of "the deal"? Because that monitor (if colour model) was very good for MCGA/VGA cames. It did something what later VGA monitors nolonger did, it did blend colours together. Especially for low-res games of the first half of the 90s, this is still …

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