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Re: VGA custom character mode for Gameboy emulation

Posted on 2023-09-15, 16:28

I think VGA Mode Q is infact 256x256, and uses the whole 64kb window http://swag.outpostbbs.net/EGAVGA/0175.PAS.html Also you can try Tweak, this is a tool that maybe can help you creating the resolution you want: Filename vgatweak.zip File size 178.65 KiB Downloads 64 downloads File comment VGA …

Re: CVX4 : high quality covox adapter

Posted on 2023-09-04, 18:33

Maybe you could increase the "demand" for such a CVX5 by adding Stereo-on-1 support to FastDOOM, @ViTi95? :innocent: EDIT : Ah, chicken-and-egg, huh? You're probably waiting for it to become available so you'll be able to test such an implementation. True, didn't add support for it as I don't have …

Re: CVX4 : high quality covox adapter

Posted on 2023-09-04, 11:36

Scali wrote on 2023-09-04, 10:23: ViTi95 wrote on 2023-09-03, 22:32: I'd pay for a stereo-on-1 CVX5. Picture this: CVX5.1 That's a 5-bit LPT DAC that uses 3 bits to select which speaker the sample goes to. After released, someone modifies Doom to make it 5.1 compatible on a 486 😂.

Re: EtherDFS - a network drive for DOS

Posted on 2023-08-17, 08:17

You can "easily" use the EtherDFS server on a WSL instance inside Windows. The main issue remains the required FAT filesystem to avoid problems. Oerg866 solution works great but there are still some issues. For now I've solved all my problems by attaching an USB flash drive formated in FAT16 and …

Re: EtherDFS - a network drive for DOS

Posted on 2023-08-16, 06:32

Personally I'm thankful for EtherDFS for its simplicity, just load a packet driver, point it at the server, and it just works. Other protocols would be, IMHO, unnecessarily complicated for the purpose of sharing files with a DOS client (and best discussed in a different thread). This. The idea is …

Re: EtherDFS - a network drive for DOS

Posted on 2023-08-15, 09:26

I've tested your version Oerg866 but has issues reading files (both trying to copy or execute): Captura de pantalla_2023-08-15_11-23-25.png EDIT: I'm using FreeDOS 1.3, and discovered that COPY command works while XCOPY doesn't. I really want to execute without having to copy (but I guess that is …

Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!

Posted on 2023-08-11, 11:52

FastDoom uses DPMI to manage memory, so only XMS is used (himem.sys) I also wanted to do the same and see if there is any performance regression, but don't have enought time to do it, so any help here is welcome. Right now I'm focusing on optimizing backbuffered modes (CGA, EGA, ColorPlus, Hercules …

Hercules InColor manuals

Posted on 2023-08-04, 10:22

Hi everyone! I'm looking for the Hercules InColor manuals. I've searched all over internet but are nowhere to be found. InfoWorld 1987 review details that there are three different manuals: 2023-08-04 12_10_21-InfoWorld - Google Libros — Mozilla Firefox.png I have special interest in the programming …

Re: Rendition Verite Thread

Posted on 2023-08-03, 11:58

For FastDoom you want to avoid mode Y executable (fdoom.exe). Try modes 13h or any of the VESA modes (mode VBR or mode VBD). Those are much faster compared to the original Mode Y: https://www.youtube.com/watch?v=6unNuPympE4 EDIT: with FastDoom is better not use renutil, it's basically not required

Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!

Posted on 2023-08-03, 11:04

Optimization for 8-bit VGA cards is a very interesting and useful feature. This is especially important for using the Herkmap mode with ISA VGA. Due to the nature of the AT architecture, devices mapped to two adjacent 64 kB segments (A000-BFFFF in our case) must operate in either 8 or 16 bit mode. …

Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!

Posted on 2023-08-01, 10:50

I did some testing in FastDoom trying to use FPU instructions along integer math but always resulted slower (using an Intel 386DX + Cyrix 387). As for Quake, @linear@nya.social has optimized some of the FPU code in 486quake and got about a 15% performance uplift for every CPU (including the Pentium …

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