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Re: 4-axis joystick with LHX Attack Chopper

Posted on Yesterday, 11:45

in DOS

in DOS

I see what you mean, but I can't see how that will solve the problem. The game automatically selects Joystick 1 and that can't be overridden. The 4-axis joystick is detected as 2 joysticks, one for each for the axis, so then I'd figure the 4-axis joystick would be detected as joystick 2 and joystick …

Re: 4-axis joystick with LHX Attack Chopper

Posted on 2024-04-25, 13:02

in DOS

in DOS

appiah4 wrote on 2024-04-25, 11:05: Can't you use a Gameport Y cable and a dummy DB-25 adapter to emulate a Joystick 1 to get around the issue? I'm pretty sure this can also be done in software if someone tried. It can definitely be done in emulation.. Not sure I quite understand what you mean here …

Re: What is the LAST 5 DOS Game ever made for DOS?

Posted on 2024-04-24, 16:33

in Milliways

in Milliways

Before summer 1997 when my family got a Compaq Presario with P166MMX I only had a 286 and my fathers Pentium 150 laptop (which he only brought home from work on special occasions). Of all the games listed above I played the Windows versions of Theme Hospital, Red Alert, Dungeon Keeper, MDK, etc. For …

4-axis joystick with LHX Attack Chopper

Posted on 2024-04-23, 14:09

in DOS

in DOS

I have the same issue as mentioned in this old thread: https://www.vogons.org/viewtopic.php?t=79301 The game have a JTUNER.EXE program to help calibrate (trim) your joystick. When you have a 4 axis joystick it seems that you need to select JOYSTICK 2, because if you select JOYSTICK 1, your normal X …

Re: Pentium 166 MMX and freakin' Wing Commander 1

Posted on 2024-04-10, 15:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You know there is a Windows conversion for Wing Commander I to III? It solves the speed issues and allows for your joystick to work with it natively. It was released in 1996 as Wing Commander Kilrathi Saga I do have the KS, box and all. However, there are many problems with it such as missing …

Re: Pentium 166 MMX and freakin' Wing Commander 1

Posted on 2024-04-10, 15:05

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You know there is a Windows conversion for Wing Commander I to III? It solves the speed issues and allows for your joystick to work with it natively. It was released in 1996 as Wing Commander Kilrathi Saga

Re: miro Magic Plus - drivers and manuals needed

Posted on 2024-04-08, 08:10

in Marvin \ Video

in Marvin \ Video

Try these, should be drivers for DOS, OS2 and Win3.x 082631.ZIP 948.403 25.03.97 miroMAGIC MR, miroMAGIC HR, miroMAGIC plus InstalldiskDisk : 1/2 ; Version : 5.00 ; DateCode : 07/94 082632.ZIP 962.539 25.03.97 miroMAGIC MR, miroMAGIC HR, miroMAGIC plus InstalldiskDisk : 2/2 ; Version : 5.00 ; …

Re: Why would you need 3x 2kb tag-ram chips for 16kb of L2 cache in a 386?

Posted on 2024-04-04, 20:28

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Again thanks for a very good reply. I agree, the cache memory board I have at the moment does not support a direct 64k upgrade by swapping out the memory chips. I will have to look for the 64k board going forward, which is probably unobtanium at this point. Can't find much information about it on …

Re: Help with Zenith Data System Expansion cards (Z-386/25)

Posted on 2024-04-04, 18:37

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

FWIW, I suspect the memory board I mentioned towards the beginning of the thread requires a DOS driver (that I don't have) to initialize. According to the service manual it says the following: Add-On Ram refers to optional, plug-in memory cards (except EMSonly cards), including those manufactured …

Re: Why would you need 3x 2kb tag-ram chips for 16kb of L2 cache in a 386?

Posted on 2024-04-04, 18:11

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you upgrade to 64K of cache, you need two less tag bits for the same cacheable area. Assuming all 12 bits are used, you still need 10 tag bits, which means you need 3 chips of special 16k x 4 tag SRAM including an integrated comparator and bulk clear. If you can take a hit of a factor of 4 on …

Re: Why would you need 3x 2kb tag-ram chips for 16kb of L2 cache in a 386?

Posted on 2024-04-04, 13:08

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm also wondering if 64kb is actually supported in this specific cache board. The manual states 64kb is possible, but in the parts list I see a 64kb cache board have a different part no. The part no is not similar to Zenith's hardware part numbers (which start with 85), so I'm not sure if this is a …

Re: Why would you need 3x 2kb tag-ram chips for 16kb of L2 cache in a 386?

Posted on 2024-04-04, 11:54

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you upgrade to 64K of cache, you need two less tag bits for the same cacheable area. Assuming all 12 bits are used, you still need 10 tag bits, which means you need 3 chips of special 16k x 4 tag SRAM including an integrated comparator and bulk clear. If you can take a hit of a factor of 4 on …

Re: Why would you need 3x 2kb tag-ram chips for 16kb of L2 cache in a 386?

Posted on 2024-04-04, 11:12

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The tag RAM is 12 bits wide. So the three 4k x 4 tag SRAM chips are used as a 4k x 12 memory array. Assuming the board tags and caches individual 32-bit values, you have 4K cache lines of 32 bits each, and a 12 bit tag for each of the cache lines. Note that the tag SRAM chips are not just 4k x 4 …

Why would you need 3x 2kb tag-ram chips for 16kb of L2 cache in a 386?

Posted on 2024-04-04, 10:11

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

This questions comes from this thread: https://www.vogons.org/viewtopic.php?f=46&t=90252 Here is the cache card from my Zenith Z-386 / 20: https://i.postimg.cc/fbkL1397/IMG-20240403-120216.jpg It has 8x MCM6270P25 (4kx4) SRAM chips for 16kb cache and 3x MCM4180P25 (4kx4) for tag-ram. I find this to …

Re: Help with Zenith Data System Expansion cards (Z-386/25)

Posted on 2024-04-03, 21:59

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks for the photos! That confirms the dual clock oscillators, one 40mhz and one 50mhz for the jumper 20/25mhz CPU speed option. I'll try and get one installed with a socket so I also can try faster ones. Here is some pictures of my BIOS/serial card with part ID 85-3548-01. It doesn't have the …

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

Posted on 2024-04-03, 21:45

in Marvin \ Video

in Marvin \ Video

PS: maybe you know how many games were game for Midas3? If there launch titles or games made before PCX1. Only the two launch titles that were bundled with Compaq. The Midas3 is just an early PCX1 and will run other PowerSGL games than those two that came bundled (Mechwarrior 2 and Flight Unlimited …

Re: VOGONS Driver Library

Posted on 2024-04-02, 07:08

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You cannot change a file once uploaded, you can only edit the picture, description, and category. Include in the zip any texts, docs or pictures . Zip it up with 7zip or winzip. Include a picture of the device or the disks if possible (only need be 800x800 pixels +/- .JPG) and Give a small …

Re: Help with Zenith Data System Expansion cards (Z-386/25)

Posted on 2024-04-01, 08:13

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Hi Vetz, I'm sorry for completely missing the notifications about your messages and PMs. Yes, the cache error was shown during POST. It called out the bad chip by the socket number on the cache board. I swapped two of the cache chips around and the issue followed the chip to the new socket number. …

Re: Bought these (retro) hardware today

Posted on 2024-03-31, 16:54

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Are there any other drivers for it in the STB archive ? like DOS and VGA utils ? Sadly no :) , that's your lot as far as the STB archive goes, though I did find an old bbs listing of what was available back in the day (maybe worth further searches by filename, or perhaps someone has them hiding in …

Re: PowerVR Fun Thread

Posted on 2024-03-31, 13:15

in Marvin \ Video

in Marvin \ Video

I don't manage to find the PowerVR version of the Motorhead demo. I suppose this is the D3D one. All the ones I came accross are either 3Dfx or software versions. Including on the Internet Archive. Does anyone have this version ? @leileilol, that's a bit late, but thanks for your reply. If it …

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