Re: Any love for Cyrix MediaGX ?
Posted on 2025-03-19, 10:18
Lotus 3 is probably slow because vsync. It requires the screen to update at 70hz, on most laptops the screen updates at 60hz (85% real speed).
Re: Any love for Cyrix MediaGX ?
Posted on 2025-03-19, 07:41
My guess is that they focused on performance for VESA modes, as they are faster and easier to work with. All other modes were merely emulated for backward compatibility. I see. It shows a lack of seriousness and commitment. But probably the budget was low. I can't understand how you can emulate …
Re: Any love for Cyrix MediaGX ?
Posted on 2025-03-09, 13:10
I stand corrected! Vanilla FDOOM is slow, FDOOMX is slow... But FDM240R is quite fast. 35 FPS! with minor slowdowns (~31 FPS). Full detail. I get 34.1 FPS on DEMO3. If there are any tweaks that you can think of, please share them. Try FDOOMVBR.EXE, it uses VESA mode 320x200. In my tests, this is …
Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!
Posted on 2025-02-27, 11:41
Yep, this release doesn’t add native hicolor or truecolor rendering; it simply converts the original 8bpp backbuffer to whatever bit depth the video card supports. I assume this also applies to newer NVIDIA RTX cards, though I haven’t tested it since I don’t have one.
Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!
Posted on 2025-02-27, 09:41
New release! FastDoom 1.1.0: * Add hicolor/truecolor support for VBE2 backbuffered modes (15-bit, 16-bit, 24-bit and 32-bit) * ASM optimized routines for linear VBE2 backbuffered modes (hicolor and truecolor) * Better initialization for VESA modes (use linear modes whenever possible) https://github. …
Re: Any love for Cyrix MediaGX ?
Posted on 2025-02-27, 09:30
I stand corrected! Vanilla FDOOM is slow, FDOOMX is slow... But FDM240R is quite fast. 35 FPS! with minor slowdowns (~31 FPS). Full detail. I get 34.1 FPS on DEMO3. If there are any tweaks that you can think of, please share them. Try FDOOMVBR.EXE, it uses VESA mode 320x200. In my tests, this is …
Re: VIA_AC97.866: DOS VIA 686A/B AC'97 init/mixer tool
Posted on 2025-02-27, 09:23
One question: does this include the OPL3 synth emulation, or does it require VIAFMTSR? I want to get rid of VIAFMTSR, as it is prone to crashes in some games 🤔
Re: VSBHDASF: Fork of VSBHDA with Soundfont support
Posted on 2025-01-28, 11:44
@RayeR any SF2 file is valid, for example I'm using 2GMGSMT.SF2 from the AWE64 cards
Re: VSBHDASF: Fork of VSBHDA with Soundfont support
Posted on 2025-01-28, 07:00
Try executing "jemmex novcpi" before running Doom, that should fix some issues with protected-mode executables EDIT: I’ve done more testing with my eBox 2350MX. Using the /MV to limit voices or changing /PS has little to no effect. I’ve also tested a smaller SF2 (just under 1 MB), and there’s no …
Re: VSBHDASF: Fork of VSBHDA with Soundfont support
Posted on 2025-01-26, 12:31
I've tested the new MMX executable, it's a bit faster, but there are still huge slowdowns. Also changing IRQ 5 to IRQ 2 didn't make any difference. I guess this cpu is not fast enough EDIT: It might be a good idea to add a command-line parameter to select a custom frequency for MIDI rendering in …
Re: VSBHDASF: Fork of VSBHDA with Soundfont support
Posted on 2025-01-26, 02:14
Finally, I tested it on my eBox (Vortex86MX @ 933 MHz with 512 MB RAM). It works, but there are random performance hiccups. For example, FastDoom with 2GMGSMT.SF2 (the 2 MB soundfont from the AWE32) runs perfectly fine at 35 FPS, but occasionally the game slows down to 2-3 FPS. Sometimes it even …
Re: VSBHDASF: Fork of VSBHDA with Soundfont support
Posted on 2025-01-24, 12:46
This is perfect for my eBox 2350MX, I'll try it as soon as possible!
Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!
Posted on 2025-01-08, 11:07
Yep, the Master Levels came with DOOM-IT. Maybe you could rename the FastDoom executable and use this launcher. I haven’t tried it myself (and it’s essentially not supported).
Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!
Posted on 2024-12-18, 18:38
Yep I'm using MTGM.MID from Roland, is not perfect but better than nothing. Captura de pantalla_20241218_192925.png I'm not an expert in MIDI stuff, may be this the solution to the panpot problem @auron? BTW next release will also have Yamaha XG support Captura de pantalla_20241217_150245.png …
Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!
Posted on 2024-12-18, 12:43
Oh, I didn’t know that the pan pot was reversed in the MT-32. I can fix that in the Apogee Sound System, as all MIDI commands are processed before being sent to the actual device. Are there any other MT-32 quirks or differences compared to the GM standard?
Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!
Posted on 2024-12-18, 06:02
Original midi tracks are not modified in MT-32 mode, the difference is that the MT-32 is patched during FastDoom's initialization to behave like a General MIDI device.
Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!
Posted on 2024-12-17, 06:54
Soooo a new release for #DOScember, changelog (1.0.6): - MIDI SysEx support (MPU401, LPT MIDI, RS232 MIDI and Sound Blaster MIDI) - Roland MT-32 support (via -mt32 command line parameter) - Roland SC-55 support (via -sc55 command line parameter) - Show song titles on MT-32 and SC-55 devices https:// …
Re: Doom8088: Doom on a 286 / 8088
Posted on 2024-12-14, 13:28
The FPU doesn't act as a true parallel coprocessor in 286, 386 and 486 systems, but it does on the 8088/8086 systems. It's possible to send FPU instructions to the 8087 and meanwhile execute more CPU instructions. The downside is that the 8087 is *very* slow, so you have to do very good planning on …
Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!
Posted on 2024-12-14, 13:02
Really interesting! I was thinking of implementing wireframe rendering similar to the Doom-like clone for the Ti83+ (https://www.youtube.com/watch?v=nduMTX86Zl0), maybe it's a bit cleaner. Anyway, I still need to figure out a way to mix SysEx messages into the Apogee Sound System MIDI stream, it's …
Re: FastDoom. A new Doom port for DOS, optimized to be as fast as possible for 386/486 personal computers!
Posted on 2024-12-09, 23:04
FastDoom supports native RS-232 MIDI and I've enabled SysEx support also for it, so it's possible to test this way. Also a USB<->MIDI adapter is valid for testing. BTW here's a screenshot from an emulated environment (86Box + MUNT): FastDoom_MT32.png Currently, GM initialization via MIDI file works, …
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