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

Posted on 2015-12-22, 17:16

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Did some Watcom C coding a week ago, so...I coded a small VGA\VESA video "benchmark" :) It can test standard EGA\VGA modes, Mode-X and VESA banked and linear modes, perfom 8\16\32 bit memory write\read\move from main to video memory and display results in MB\s, MiB\s and frames per second. Sory for …

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Re: Best DOS video card?

Posted on 2015-12-20, 12:50

by

by wbc

in Marvin \ Video

in Marvin \ Video

elianda wrote: I actually made a few tables here: ftp://78.46.141.148/vesainfo/ thx!

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Re: Best DOS video card?

Posted on 2015-12-20, 11:51

by

by wbc

in Marvin \ Video

in Marvin \ Video

as well as demos most often require the mode to appear at a specific number. for example dat damn State 808 by Shock! , which is nearly impossible to run properly without UniVBE - this demo uses hardcoded standard mode 0x101(640x480x8bpp) for hires gfx and 0x155 (320x400x8bpp) in other parts. Some …

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Re: Commander Keen problem!

Posted on 2015-12-18, 14:23

by

by wbc

in Marvin \ Software

in Marvin \ Software

Once I have noticed some color issues in Commander Keen on Matrox Millennium with LG L1510S LCD monitor and...decided to fix it by self-made TSR :) Works with all Keen games, also fixes blue tint in password\difficulty screen in Prehistorik 2, sure other apps\games using VGA mode 0xD (320x200x4bpp …

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Re: Video card overclocking utility for MS-DOS? (powerstrip like)

Posted on 2015-12-11, 15:14

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

idspispopd wrote: You didn't mention if you already use s3vbe20, but since you know about s3spdup I suppose you also know the first one. Yes, I used it, although I suppose that it can work without it by fact (according by this doc)

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Re: Video card overclocking utility for MS-DOS? (powerstrip like)

Posted on 2015-12-11, 11:22

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For S3 chips (and some other) MCLK is the weapon of choice. Indeed! I tried it in my Eagles Trio64V2/DX w/ 2MB 35ns EDO memory and it can easily beat 71 MHz with cpu-2 mem-3 timings at 1-cycle EDO! (a bit unclear explanation, but who cares? :)) It gives me a nice boost in VESA modes (for banked one …

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Re: How to diagnose bad ISA VGA video RAM

Posted on 2015-11-15, 09:26

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I think that one of 4464 memory chips is failed. Find it out and replace with working one (any 4 x 65536 bit chip should work) Also you can try to swap two chips on card and if you notice some changes in picture you have probably found a defective module. It looks like the 4464 is a one-bit memory …

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Re: Non-US character ROMs from MDA/CGA/Hercules cards?

Posted on 2015-10-17, 16:38

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Weird indeed... each of the 3 Cyrillic fonts has a different encoding. The second one in particular (top right) looks very Apple][-ish. Perhaps related to the fact that Pravetz made Apple clones as well... The top right font seems to using KOI8-R character set rather that standard OEM 866 , while …

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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Posted on 2015-10-10, 14:23

by

by wbc

in Marvin \ Sound

in Marvin \ Sound

Good news everyone! 😀

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Re: ASUS TX97-XE recapping ended up in tragedy

Posted on 2015-10-09, 16:09

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

On another board I had to replace a couple of damaged tantalum caps (physical damage). One of them had a lead very close to some traces. While replacing cap, I accidentally created a short between it's (-) lead and some of the traces inside the PCB. I managed to fix it by soldering the capacitor …

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Re: S3 AGP Cards (and possibly others) Too Bright

Posted on 2015-10-05, 16:36

by

by wbc

in Marvin \ Video

in Marvin \ Video

and the last one: SVBL (Shadow Video BIOS loader), a small utility which loads video BIOS from image to shadow memory (sorry, descriptions in Russian and works only with Intel 430 series (maybe 440\8xx also?) and SiS 496\497 chipsets) (again, not tested yet but author claimed that it works)

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Re: S3 AGP Cards (and possibly others) Too Bright

Posted on 2015-10-05, 16:23

by

by wbc

in Marvin \ Video

in Marvin \ Video

Great! Does anyone have a nice Virge DX without the brightness issues? I'd love to fix mine as well. http://chukaev.ru54.com/video/86c375_4.zip ( not tested yet , it is just a new version) by the way! does anybody know that does stock S3 video BIOSes programs MCLK when poweron or just uses default …

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Re: S3 AGP Cards (and possibly others) Too Bright

Posted on 2015-10-05, 14:35

by

by wbc

in Marvin \ Video

in Marvin \ Video

(my previous post has not been sumbitted, dunno why) For S3 Trio64V2/DX or GX you can try this video BIOS (in attachment) that does not have brightness issue. It is also capable of VBE 2.0 support (no more TSR's like UNIVBE or S3VBE20 in memory! well, almost :)) but be aware of card with this bios …

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Re: LCD monitor VGA compatibility database

Posted on 2015-10-02, 16:19

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Okay, now I will post my results for LG Flatron L1510S: Monitor: LG Flatron L1510S (manufactured April 2003) Native res: 1024x768 Scaling: interpolated Aspect rto: 4:3, letterboxing not supported Machine: 1) P200MMX\FIC VA-502(VIA VPX)\128 MB SDRAM\AWE64 and 2) P200MMX\Zida 5STX(i430TX)\128 MB SDRAM …

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Re: LCD monitor VGA compatibility database

Posted on 2015-09-16, 15:55

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

For example it was suggested to include Sea of Robot Love by Orange as it sets a 50Hz mode on standard VGA Or xtal \ Complex , it also uses the same 50hz tweaked mode as in Orange intro. by the way, I will test some monitors and post the results there, so thanks for test suite (although I already …

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Re: Mobo type?

Posted on 2015-08-06, 13:22

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Apparently this mobo does support MMX procesors, since it has a linear regulator on massive heatsink. Just get the right manual that mentions Pentium MMX and set jumpers according to it.

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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Posted on 2015-07-29, 15:08

by

by wbc

in Marvin \ Sound

in Marvin \ Sound

+1 to all, hope that you will recover and the project won't throwed in a trashbag. 😉 by the way, I started to code a simple Interwave mixer, but due of heavy summer demoscene-marathon (which is going now and can't stop 🤣) this project was temporarily postponed (hope I will complete it)

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Re: SB16 PnP DOS7 setup CTCM error

Posted on 2015-07-05, 16:55

by

by wbc

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

As I remember changing "winbootdir" string in CTCU.EXE and CTCM.EXE (i.e. in HEX editor) should be sufficient.

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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Posted on 2015-07-01, 13:37

by

by wbc

in Marvin \ Sound

in Marvin \ Sound

Currently the prototype is being delayed as the 90° SIMM slot would cause SIMM sticks to intersect and lie on the InterWave (hooray for paper prototypes once again). Sad, but I hope that this issue will be fixed without causing other problems ;) I would suggest 22-degrees slots. +1, but price...meh

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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Posted on 2015-07-01, 11:14

by

by wbc

in Marvin \ Sound

in Marvin \ Sound

waiting for fresh news of project... 😉

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