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

Posted on Yesterday, 10:27

It was easier to fix FastDoom than SBEMU, anyway I was using a non-standard configuration that didn't fit into DPMI specs: A DOS protected mode program uses FLAT model (CS=DS=SS=ES) like a win32 one, but it's not always true when in interrupts when a DPMI host is used, as the DPMI spec requires a …

Re: Can a faster ISA Graphics card be built?

Posted on 2024-04-11, 20:37

Anyone else I would have said was full of shit but this is "Mr FastDoom" yes, but viti said games, is he going to patch/rewrite all of the games? :) Add DirectX / Glide / OpenGL support in the card and you won't require to rewrite anything. And I bet Wolfenstein 3D, Doom, Duke Nukem 3D and Quake …

Re: Can a faster ISA Graphics card be built?

Posted on 2024-04-11, 14:22

I really want to see a FPGA based ISA video card with lot's of VRAM, 3D acceleration and sound acceleration. I'm pretty sure games like Doom could run at full speed even on a slow 386 with such card. Most of the CPU time is wasted on texture mapping and scaling, which can be accelerated quite easily …

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

Posted on 2024-04-06, 00:45

I do. Tbh I feels like this project has lost focus. Strip out networking to gain speed? Sure let's do that. (Fair enough, made sense at that time .) Add high res rendering which can only reasonably be used on faster machines? Alright. And let's remove cheat codes, just because. Emulate an entire …

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

Posted on 2024-04-03, 18:30

Definetely there is a bug in the DOS Extender, DPMI function 0800H. It fails if we try to map more than 8Mb. This issue also happens on other games, and it turns out that's why NOLFB program was created ( https://www.vogons.org/viewtopic.php?t=467 ). There are cards that limit the amount of VESA …

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

Posted on 2024-04-03, 17:19

New bugfixing release! FastDoom 0.9.9b: https://github.com/viti95/FastDoom/releases/tag/0.9.9b Changelog: Hercules InColor support Mode-X 320x240 mode support (great for old laptops without VESA support and 640x480 display) Fixed MDA debug, now text don't blink all the time Fixed issue #183, random …

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

Posted on 2024-04-03, 07:29

Does it crash right at the start? Or does it crash ingame? Also, does this happen with other executables such as fdoom.exe or fdoom13h.exe? EDIT: I think I've found the issue, it's crashing on cards with 16Mb or more of VRAM https://github.com/viti95/FastDoom/issues/185 EDIT2: NOLFB fixes this issue …

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

Posted on 2024-03-26, 06:52

Well the Hercules InColor is a pretty rare card. Basically is an original Hercules with new capabilities, not compatible at all with the EGA standard. The original Hercules card had 64kb, 720x348 resolution monochrome. If you multiply that by 4, you get the Hercules InColor, 256Kb card with 4 planes …

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

Posted on 2024-03-25, 09:39

Why was it necessary to remove cheats in nightmare mode? The cheats I disabled in nightmare mode are IDDT and IDCLIP, all other cheats were already disabled on vanilla Doom. I didn't notice that those cheats were available in nightmare until I rewrote cheat code handling. I find this is a bug in …

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

Posted on 2024-03-25, 07:06

Why was it necessary to remove cheats in nightmare mode? Also, why did you presume to remove the -nomonsters and -turbo commandline modes? Please let us decide for ourselves whether we want to use them or not. Personally, I like the -nomonsters mode as it allows to quickly search a level. The same …

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

Posted on 2024-03-24, 19:12

HI! i open a ticket in github too, i have a problem, maybe someone else can test If i have softmpu loaded and select AWE32 music, fastdoom hangs at exit, and need to hard reset, same with emm386 or qemm, if i select other music type, sb, adlib, pcm, etc no problem at exist I tested in a 486 dx4 and …

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