Re: OPL3 Synth - Web Based & Questions

Posted on 2015-05-24, 19:58

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

You guys are running it all in straight up DOS? Of course! Running dos programs in windows is cheating, man. I'm guessing your ISA bus may be too fast or something. Changing I/O recovery or opl_latency both add a small delay, and perhaps windows adds just enough overhead to slow things down too. …

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Re: Promise IDE controller wasting memory

Posted on 2015-05-23, 19:43

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Thanks! That's a very interesting link. I didn't really expect to see other people concerned about this, since these controller cards were released when dos pretty much died out already. Too bad it seems impossible to reclaim this memory though... :( I would imagine if there's some way to find out …

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Re: Bought these (retro) hardware today

Posted on 2015-05-23, 18:57

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Today's thrift store haul yielded one pack of Maxell 3.5" floppies. ...and this. Behold the Zenith Z-Note 320L! Didn't really expect it, but there's a 386 inside. (click image for full gallery)

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Promise IDE controller wasting memory

Posted on 2015-05-23, 10:46

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I'm using a Promise Ultra133TX2 controller now, so far it seems to work quite well. There's one thing I don't really like though: it takes 6k of low memory for itself. With the Promise card installed, MEM reports 634k total conventional memory instead of 640k. Segments 9E80 to 9FFF are occupied by …

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Re: [build log] My attempt at building the "ultimate" 440BX machine.

Posted on 2015-05-23, 09:14

by

by jwt27

in Marvin \ System Specs

in Marvin \ System Specs

Thanks! :) As you may have noticed, I haven't replaced the caps in the corner yet. These are on the 12V rail, and I'm pretty sure 6.3V caps would go right up in smoke here. For the big purple caps I don't have suitable replacements on hand, but then these are polymers already so replacement may not …

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Re: [build log] My attempt at building the "ultimate" 440BX machine.

Posted on 2015-05-23, 08:26

by

by jwt27

in Marvin \ System Specs

in Marvin \ System Specs

Quick update, I replaced the fan on the Voodoo5 yesterday with a 800rpm one. Not that 500rpm wasn't sufficient but I thought placing the 500rpm one on the cpu would make more sense. While doing so, I noticed that the fan lifts one of the heatsinks up a bit if it's not mounted 100% straight on. So …

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Re: Crash on real hardware, but not DOSBox

Posted on 2015-05-23, 08:05

by

by jwt27

in DOSBox General

in DOSBox General

Bytes 3 and 4 (80 64) are the block size, and 0889+6480+1=6D0A, not 26D1A. (but then I have no idea if that's the right way to calculate it) That's the correct way to calculate the next MCB segment, but you started with 0889 instead of 0899. The "2" may be a mis-transcribed "Z", if the message …

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Re: OPL3 Synth - Web Based & Questions

Posted on 2015-05-23, 07:08

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Can confirm that the garbling occurs for me too with two different OPTI 924 cards and one Aztech card. YMF and ESS cards do work correctly (with I/O recovery = 1)

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Re: Crash on real hardware, but not DOSBox

Posted on 2015-05-23, 07:02

by

by jwt27

in DOSBox General

in DOSBox General

dos mem corrupt, first_mcb=0277 prev 0899:0000|4D 9A 08 80 64 E9 91 03 46 52 4F 54 5A 00 00 M?.?d??.FROTZ... notM26D1A:0000|58 60 1D EA 23 25 FC A5 7B 54 1E 70 23 f2 6B X`..?#%??{T.p#?k PANIC: before 4a: MCB chain corrupted System halted Don't know if it's any help, but the cryptic "before 4a" …

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Re: OPL3 Synth - Web Based & Questions

Posted on 2015-05-20, 18:49

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

df00z wrote: Edit: Argh! I give up, ordering a CT2290, which is more soundblaster-y than a Creative Vibra 16 or an Aztech Sound Galaxy Washington 16. It's still a crummy Creative... try a YMF719 card! 😉

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Re: OPL3 Synth - Web Based & Questions

Posted on 2015-05-19, 19:02

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Seems to work now, cool. Both on the site and through the direct stream (got a 404 on that earlier). Looks like it'll take a while before my midi plays though 🤣 You may want one of these to improve your site: https://www.youtube.com/watch?v=TSwqnR327fk

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Re: OPL3 Synth - Web Based & Questions

Posted on 2015-05-19, 17:34

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Looking to try this now but the stream won't load for me on any browser/player 🙁 You could try setting opl_latency=1 in the ini file. Should normally only be necessary on OPL2, but may help with crummy clones too. Must say I really like your idea by the way! 😀

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Re: OPL3 Synth - Web Based & Questions

Posted on 2015-05-19, 05:58

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Switched to http://adplug.sourceforge.net Put the Aztech sound card back in. .A2M is working. Adlibtracker outright just doesn't work on the 486. It's probably compiled for a newer CPU or something, dunno. It's all staticky and buzzy. Tried the newer and older version. This might be related to a …

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Re: Bought these (retro) hardware today

Posted on 2015-05-16, 14:42

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I have two of these... 64lbs. And another one that's even heavier. Not much fun hauling these to/from the attic. 🙁 http://i.imgur.com/fpogu9Q.jpg

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Re: need a good lightweight browser

Posted on 2015-05-15, 17:41

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Opera 12.17

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Re: Bought these (retro) hardware today

Posted on 2015-05-14, 20:22

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Saw an ICL 7500 terminal monitor from the 70's at the flea market today. It looked really cool, with a large monochrome tube, but I don't really have space left for more junk...

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Re: Bought these (retro) hardware today

Posted on 2015-05-13, 14:24

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Found this nifty NIB Cherry keyboard in a thrift shop today: http://imgur.com/a/JkxdD Goddammit! I just turned my Highscreen branded Cherry keyboard around and... there it is! A PC/AT switch! I've had this thing for over 22 years and never knew about that switch! Thank you! Ha! So I suppose you've …

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Re: Bought these (retro) hardware today

Posted on 2015-05-12, 15:11

by

by jwt27

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Found this nifty NIB Cherry keyboard in a thrift shop today: http://imgur.com/a/JkxdD

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Re: What game are you playing now?

Posted on 2015-05-11, 19:17

by

by jwt27

in Milliways

in Milliways

bjt wrote: The DOS port is excellent and quite possibly the best version of all. Motion is fluid (noticeably more so on real hardware than DOSBox). I suppose most of you already know how those smooth animations came to be, but for those who haven't seen it: https://www.youtube.com/watch?v= …

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Re: wow this is slow

Posted on 2015-05-07, 18:57

by

by jwt27

in Milliways

in Milliways

Right now: At night when there's nobody else online:

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