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Re: What is the main bottleneck in dos programming?

Posted on 2021-10-12, 04:35

in Marvin \ Software

in Marvin \ Software

Compress no, but decompression was always faster than disk. 7MHz Amiga/Atari ST/megadrive 68000 does 500-900KB/s LZ4W Well just to be pedantic, Amiga SCSI controllers can do more than that. My A2000 with a Zorro II card does 2MB/sec. Useless in non multitasking environment. Main benefit of DMA is …

Re: Prices on AMD FX8xxx and lower series (socket AM3+) - what is going on here ?

Posted on 2021-10-12, 04:07

in Milliways

in Milliways

I believe the AMD Piledriver arch is the last one which lacks the "hardware backdoor" a.k.a. trust zone, platform security processor, or management engine. That could be one point of appeal? Although X4 760K processors are cheap. These AM3, AM3+, FM2 motherboards also have better compatibility with …

Re: One year anniversary of NVIDIA "cancelling" their old tech demos

Posted on 2021-10-07, 02:27

in Milliways

in Milliways

Those old GeForce FX demos still look pretty slick, after pumping up the resolution to 1600x1200 (have to edit the args.txt file). I mean, comparing Dusk Ultra to A New Dawn, the latter uses faaaar more GPU resources seemingly just to put on that last few % of polish.

Re: MyPal is dead

Posted on 2021-10-07, 02:12

in Marvin \ Software

in Marvin \ Software

This really burns my bacon. I guess the BSD maintainers and everyone else who said palemoon devs are toxic was on to something.

Re: What game are you playing now?

Posted on 2021-10-05, 00:52

in Milliways

in Milliways

Just installed Windows 2000 extended kernel v30g. Playing the GOG release of Mirror's Edge, which didn't seem to work before...

Re: DOS PCMCIA Card and socket services software?

Posted on 2021-10-05, 00:41

in Marvin \ Software

in Marvin \ Software

If cardsoft doesn't work then how about Phoenix Card Manager?

Re: vintage programming

Posted on 2021-10-03, 22:54

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I use NOWUT for modern 32-bit and vintage 32-bit (and some 16-bit) programming. 95% of dev happens on Windows 2000 but since the compiler can run in several environments I can also tweak source code with the MS-DOS editor and recompile it right there in DOS if I'm testing a DOS program. https:// …

Re: What is minimum VRAM size for 1600x1200 mode in truecolor under WinNT/2k/XP?

Posted on 2021-09-26, 20:51

in Marvin \ Video

in Marvin \ Video

Some older cards won't have enough memory bandwidth to support 1600x1200x32bit even if they have 8MB available. When you want a pixel clock of over 100MHz then 50MHz EDO RAM, for example, isn't going to cut it.

Re: 3DMark99 Performance on 486-class processors

Posted on 2021-09-25, 20:19

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

3Dmark99 doesn't calculate the fps or score correctly on a 486. Even with a Cyrix 5x86-120 it'll run the test but come back with a single-digit score. If you put in a Pentium Overdrive then you can get 500+

Re: Playing video as the game story, but how?

Posted on 2021-09-22, 17:17

in Milliways

in Milliways

What OS? Under Windows you can use the API in AVIFIL32.DLL to decode video using whatever codecs are available on the system. That could be old stuff like Indeo/Cinepak or newer ones like VP8. You probably want to steer clear of any that are patent encumbered. Otherwise, maybe you could incorporate …

Re: mobile HD5450 vs HD5650 MXM cards.

Posted on 2021-09-17, 16:19

in Marvin \ Video

in Marvin \ Video

According to wiki these are similar to the desktop Cedar and Redwood parts. The latter would be at least double the performance, or more for shader-heavy games. https://en.wikipedia.org/wiki/List_of_AMD_gra … _HD_5000_series

a little something bugging me... GeForce GT 430/440

Posted on 2021-08-21, 02:10

in Marvin \ Video

in Marvin \ Video

The GeForce GT 430/440 based on the GF108 chip is specified for 96 shaders, 16 texture units, and 4 ROPs. That last part has always stuck out like a sore thumb for me. Why only 4 ROPs? Is it true? 1) 4 ROPs is a downgrade compared to the previous generation GT 240 and even GT 220. It is less than …

Re: Latest PCI video cards and bridge chips opinions

Posted on 2021-08-17, 07:23

in Marvin \ Video

in Marvin \ Video

I tested an 8400GS PCI card one time with the PEX8112. Only ran 3Dmark01 on it but it was around 2/3 the speed of a PCIe 8400GS. The problem is that each vertex which gets rendered usually has X/Y/Z coordinates, U/V texture coordinates, and a surface normal vector. That's 8x 32-bit floating point …

Re: Sysinternals FAT32 for NT - how to disable CHKFAT32.exe on boot?

Posted on 2021-08-09, 15:22

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Does this information help? https://www.raymond.cc/blog/manually-reset-or-clear-dirty-bit-in-windows-without-chkdsk/ I'm not sure if it applies to NT4. Also, they are resorting to a boot CD to edit their system partition because their hex editor isn't capable... I would suggest using Roadkil's …

Re: How do I locate the address of the linear framebuffer in my VGA card?

Posted on 2021-08-07, 21:52

in Marvin \ Video

in Marvin \ Video

How did you measure the speed increase? I used SVGASPD, which has evidently fallen off the face of the internet since then. But you can still see it in the wayback machine https://web.archive.org/web/20000815205802/http://www.nexus.hu/gad/speed/index.html BTW, I have seen 5MB/s from that video card …

Re: How do I locate the address of the linear framebuffer in my VGA card?

Posted on 2021-08-06, 14:38

in Marvin \ Video

in Marvin \ Video

If you have an LFB at all, I think the 15MB memory hole would be the only possible place for it. So I guess the command line would be like this: FASTVID x11 1 00F00000 I enabled write combining on an ISA card one time just to see what would happen. The system was a Soyo 7SBB with Celeron 400 and …

Re: Best CPU and games era for Asus P5G41T-M + NVidia 210 1GB?

Posted on 2021-07-30, 07:57

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

E8400 is a strong CPU for the time, GeForce 210 is a weak GPU for the time. I'd be surprised if there is any game in existence where the CPU is the bottleneck instead of the video card. Video cards are worth their weight in gold now but if you were to snag at least a mid-tier DX11 card it would …

Re: Partition and format fat32 on disks from 128gb to 3tb

Posted on 2021-07-22, 22:20

in Marvin \ Software

in Marvin \ Software

Did you try FreeDOS? I think the source for the FAT32Format (Windows) program is on github so maybe someone could also try porting that to DOS.

Re: Pouet Demoscene Hardware (In)Compatibility Thread

Posted on 2021-07-22, 21:56

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

elianda wrote on 2021-07-21, 19:26: Though, if you lie about the aspect ratio, are circles still circles on your screen? Generally, no. Maybe with a little debugging one could find the projection matrix and patch it to fix that as well.

Re: Pouet Demoscene Hardware (In)Compatibility Thread

Posted on 2021-07-20, 23:35

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I've been watching for demos that run on Windows 2000 with extended kernel and BWC drivers. Hardware is (at the moment) Athlon II X2 280, GTX 650 Ti, 3GB RAM. Many demos will ask for the user's screen aspect ratio, but then anyone who admits to having 4:3 (or even 16:10) will just get extra black …

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