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Who has had instability with a V20 on the 8088-based line of IBM PCs/Clones?

Posted on 2024-07-28, 02:24

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have had a lot of luck in getting 640k on my XT Clone, the Sanyo MBC-775. I went to the Vintage Computer Festival Southwest, and I got one of the biggest prizes that anyone could ever ask for when it comes to an XT computer: 20240615_154731.jpg An AST SixPak! I was so happy when I found this. Now …

Re: 3D Accelerated Games List (Proprietary APIs - No 3DFX/Direct3D)

Posted on 2024-05-30, 20:26

in Marvin \ Video

in Marvin \ Video

There were at least two games that my father had that seemed to be meant just for the ATI Rage Pro: Lunatik- A standard futuristic shoot-em-up/scavenger hunt to find the goal villain . Definitely made for the Rage Pro, because it used the ATI logo in its intro. Team Apache (A military wargames …

Re: Sound Blaster 16 (CT2800) Oddities - Bio Menace and Xargon Sound Issues on Wind0ws 98

Posted on 2024-05-27, 06:14

in DOS

in DOS

One last thing... Have you tried specifying the Legacy ISA IRQ and DMA assignment options in the BIOS, if it has it?

Re: Sound Blaster 16 (CT2800) Oddities - Bio Menace and Xargon Sound Issues on Wind0ws 98

Posted on 2024-05-27, 00:45

in DOS

in DOS

Have you tried going to the Resource tab for the card(s) in Device Manager and setting it to not use automatic configuration? In my experience, for regular games, just the Address, IRQ, and DMA settings are needed. (i.e. "Setting based on: [Basic Configuration ##]")

Re: Compaq Portable III modded BIOS / XTIDE

Posted on 2024-02-25, 21:58

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

All right. I've updated the ROMS with the latest version. I have had some problems where I can't seem to get multiple CF cards on the IDE cable, though. It only accepts one, and that's on the end of the cable. Even with the drive positioning jumpered, it considers both adapters as the same drive, …

Re: Compaq Portable III modded BIOS / XTIDE

Posted on 2024-02-15, 05:10

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

OH BABY!!!!!! Filename 20240214_230152.jpg File size 1.23 MiB Views 457 views File license Public domain I ordered the electronic parts a few hours ago, but I wanted to see if XT-IDE would load from 27C64 EPROMS. Turns out they DO! I may re-program these later with an up-to-date version, but JUST …

Re: Compaq Portable III modded BIOS / XTIDE

Posted on 2024-02-15, 00:54

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Ooooh. I have a recently-repaired Compaq P3, a set of 27C256 ROMS, a ROM programmer, and a 3D Printer, and I have been wanting to get the system working with XT-IDE and Compact Flash cards! 😁 I just need to wait for my cables, and some CF-IDE adapters, and I'm in business!

Re: Doom 'MBF' for DOS, Maintenance release 2.04

Posted on 2023-12-08, 09:21

in Release Announcements

in Release Announcements

Another important bug: in one of these versions (The DMX OPL version, I think), the Gamma Correction is glitched and doesn't lighten the screen. I thought it was a problem with how the program interfaces with my ATI All-In-Wonder Pro, but it doesn't work on my ATI Radeon 9000 either.

Re: Doom 'MBF' for DOS, Maintenance release 2.04

Posted on 2023-11-22, 01:37

in Release Announcements

in Release Announcements

While you are at it - maybe worth checking out the setup.exe that's built from the sources of liballegro I've shared? This one doesn't have Doom assets anymore, although the background is based on a Cramack's drawing. I have just built MBF with your library, including the latest fixes from ADLIB.C …

Re: Doom 'MBF' for DOS, Maintenance release 2.04

Posted on 2023-11-16, 22:17

in Release Announcements

in Release Announcements

I was going to comment about how the music sounds, but I didn't because I thought it was a quirk with Allegro, not with the changes. I have UniDoom DM 2, which is a deathmatch map pack from the early 2000s. It sounds fine in vanilla Doom II, but one of the instruments sounds too high compared to its …

Re: Old games that had CD Audio tracks?

Posted on 2023-10-04, 09:40

in DOS

in DOS

The Incredible Machine 2 This is the only DOS game that I can think of off the top of my head.

Re: IBM 5160 CLONE not detecting full 640k compliment...

Posted on 2023-09-27, 09:41

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think the addressing may be just fine in 640k mode. If I have this properly, I am seeing properly-inverted and formatted address values being asserted on the A0-A8 lines. (i.e. 0001 becomes 01FE, ignoring the leading zero, when inverted, and 0003 becomes 01FC), and they seem to match up with …

Re: IBM 5160 CLONE not detecting full 640k compliment...

Posted on 2023-09-16, 19:10

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You seem to have issues with adressing: The lowest address bit from the processor (A0) is not working properly. Trace the A0 line from the processor to the row/column multiplexer and further to the RAM. Do not just check for continuity, but also for shorts between the affected traces and …

Re: IBM 5160 CLONE not detecting full 640k compliment...

Posted on 2023-09-16, 00:59

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

All right, I have done much more research since 5 months ago and gotten a logic analyzer, and this is what I found out thanks to modem7 from the VCFed forums: 1. Measuring Row and Column Address Strobe and Write Enable all show just fine in both 256k and 640k modes. 2. The start of RAM is not …

Re: Doom 'MBF' for DOS, Maintenance release 2.04

Posted on 2023-08-24, 09:46

in Release Announcements

in Release Announcements

This is probably a bit too specific, but I'm having a major display glitch when running MBF on my ATI Rage Pro-based All-In-Wonder Card. The display runs through its color tests rather than properly displaying an image. I checked if it was the Windows-based driver. In a way, it is. It doesn't show …

Re: How to read out an S3 Vrige DX/GX bios version, memory and gpu speed in MS DOS

Posted on 2023-08-21, 01:53

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just to let you know, you may have trouble finding reliable chips. I bought some 4 years ago and almost all of them were wonky.

ATI's Install Wizard hanging in WinXP + Possible to open/extract drivers from CAB or .XX_ files?

Posted on 2023-08-20, 22:06

in Marvin \ Video

in Marvin \ Video

I don't know what it is with ATI's installation wizards for Windows XP, but they seem to be as buggy as all-get-out. So many I have tried, yet they ALL hang either as soon as the "InstallShield is preparing..." window goes away, or they don't start at all. Running on the Administrator account is an …

Re: What retro activity did you get up to today?

Posted on 2023-08-18, 06:28

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Speaking of sound cards... I finally got 3D Dinosaur Adventure working properly with full audio, and also got the Sound Blaster's ability to pipe PC Speaker sound through regular speakers on startup. (Rather than starting it manually) It seems I hit a double whammy: For the Sound Blaster, you need …

Re: Local Ad: VFX1 for $20!

Posted on 2023-08-15, 10:39

in Milliways

in Milliways

That's partly what got me interested. I have the VFX board out of my retro rig system at the moment.

Re: Local Ad: VFX1 for $20!

Posted on 2023-08-15, 07:52

in Milliways

in Milliways

Well, I'm in the middle of reverse-engineering the tech. It's on the back-burner at the moment.

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