Re: Dos wont respond to d key when mounting

Posted on Today, 07:40

by

by jmarsh

in DOSBox General

in DOSBox General

Running "config -r -resetmapper" from inside DOSBox will delete the saved key mappings and close DOSBox, so when you restart it the keys will be back to defaults. Alternatively if you used the windows installer there is a "Reset KeyMapper" shortcut in the start menu under DOSBox->Options (which is …

---

Re: Pentium 66 MHz socket 4 system

Posted on 2020-03-25, 01:48

by

by jmarsh

in Marvin \ System Specs

in Marvin \ System Specs

It doesn't cause instability. It gives slightly incorrect results when the two input values for a floating point division match a specific rare pattern.

---

Re: Coronavirus chatter

Posted on 2020-03-24, 09:46

by

by jmarsh

in Milliways

in Milliways

Cruise ships are basically floating Petri dishes though.

---

Re: DOS games with high memory usage

Posted on 2020-03-22, 15:50

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

auron wrote on 2020-03-22, 12:31: also was virtual memory actually ever a thing in DOS extender games, as afaik DOS/4G supports it? Absolutely. Many games will use a pagefile if you have less than 8MB. Red Alert will always allocate a 20MB pagefile even if it's not needed.

---

Re: Strange power issue

Posted on 2020-03-19, 23:05

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Try replacing the CMOS battery/RTC module.

---

Re: Universal PnP Sound Card Enabler for DOS v0.65b (UNISOUND)

Posted on 2020-03-14, 20:12

by

by jmarsh

in Marvin \ Sound

in Marvin \ Sound

Maybe you should consider building this as a device driver instead so it could be loaded from config.sys?

---

Re: IDE/CD-ROM header on Aztech MM PRO 16III (AZT2320)

Posted on 2020-03-13, 23:46

by

by jmarsh

in Marvin \ Sound

in Marvin \ Sound

If the IDE interface isn't enabled until the AZTPNP utility runs from autoexec.bat, device drivers in config.sys won't be able to see it because they get loaded before that happens.

---

Re: Game Suggestions.

Posted on 2020-03-13, 18:49

by

by jmarsh

in Milliways

in Milliways

leileilol wrote on 2020-03-13, 00:47: Quake3 (and most derivatives) have a 848x480 resolution in its video mode list so that's also something to try, given '99 was the period of wide plasma screens. Even Quake1 does, if the card returns a vesa mode for it.

---

Re: Sound Blaster AWE32 ram ?

Posted on 2020-03-13, 18:48

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

BloodyCactus wrote on 2020-03-13, 17:41: does this model need the dram jumper enabled? The 3670 doesn't. The jumper is labelled on the board but there's no pins.

---

Re: dosbox-staging (DOSBox Git repo)

Posted on 2020-03-13, 13:48

by

by jmarsh

in DOSBox Patches

in DOSBox Patches

Most of those games are using software mixing for their sound effects and ultramid (either loading it before running or as a static lib) for midi playback, not MOD music.

---

Re: Is there any way to bypass available hard drive space detection when installing games or other software?

Posted on 2020-03-12, 20:14

by

by jmarsh

in Marvin \ Software

in Marvin \ Software

It might be that the games are using signed 32-bit values to calculate the free space, so having between 18-20GB free would map to negative values.

---

Re: Install DOS in DOSBox

Posted on 2020-03-11, 08:15

by

by jmarsh

in DOSBox Guides

in DOSBox Guides

And speaking of Win9x, that works surprisingly well with DOSBox-X. It works just as well with SVN (which is to say, far from perfect) if you set the cputype to pentium_slow. Most page fault crashes are caused by programs trying to grow their stacks which requires proper usermode page access …

---

Re: dosbox-staging (DOSBox Git repo)

Posted on 2020-03-11, 07:39

by

by jmarsh

in DOSBox Patches

in DOSBox Patches

Let's say a game uses 16KHz as its internal mixing rate; do you think resampling to 11025, 22050 or 44100 is going to sound better than resampling to 16000 or 32000 (since they're "always bad")? The reason your test case only sounds "correct" at 11025, 22050 and 44100 is simply because it's a …

---

Re: Bought these (retro) hardware today

Posted on 2020-03-10, 20:24

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Xicor wrote on 2020-03-10, 19:08: Seriously, 1200 N.O.S. floppy's will cover my life time needs and some. Wow, almost enough storage to match a 2GB SD card.

---

Re: Rise of the Triad - graphics settings?

Posted on 2020-03-10, 20:18

by

by jmarsh

in DOSBox Games/Apps

in DOSBox Games/Apps

Basically you've got two options: blocks or blurriness. If you want blocks (big pixels) set output=openglnb. If you want blurring (no pixels) set output=opengl.

---

Re: dosbox-staging (DOSBox Git repo)

Posted on 2020-03-10, 19:56

by

by jmarsh

in DOSBox Patches

in DOSBox Patches

I personally only use GUS for PCM-audio playback, sound-effects, or CD-audio music, typically 8 channels or less. If the game's setup utility allows MIDI or MT32 playback, I use Timidity, FluidSynth, or Munt; and I'll use a sound-font tailored for the game (Yamaha, FatBoy, or ToH). I don't use the …

---

Re: dosbox-staging (DOSBox Git repo)

Posted on 2020-03-10, 18:54

by

by jmarsh

in DOSBox Patches

in DOSBox Patches

We limit them to 11 / 22 / 44, all of which play clean and in stereo for the 99-percentile cases. Not even close, because your test uses less than 15 channels so the master rate is always 44100. In most DOSBox use cases users are utilizing GUS for midi playback which uses many more channels ( …

---

Re: dosbox-staging (DOSBox Git repo)

Posted on 2020-03-10, 17:22

by

by jmarsh

in DOSBox Patches

in DOSBox Patches

I'm saying (as I have before) that the selection for "gusrate" shouldn't even exist; every channel being played should be resampled to the internal master rate that the card is running at, exactly like the real hardware does. Failure to do so results in samples being included in the output when they …

---

Re: Bought these (retro) hardware today

Posted on 2020-03-10, 12:32

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

derSammler wrote on 2020-03-10, 12:19: The amount of RAM can be queried from the BIOS and it stores that info in CMOS whenever a POST is done. What do you think the default handler for int15 does...

---

Re: dosbox-staging (DOSBox Git repo)

Posted on 2020-03-10, 10:01

by

by jmarsh

in DOSBox Patches

in DOSBox Patches

That GUS fix does nothing useful, the internal playback sampling rate of the Ultrasound is not a fixed value and varies depending on the number of voices active.

---