Re: Making my first ISA card, as pain-free as possible

Posted on Yesterday, 01:06

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

hows the isa design going? I'm kicking around doing some, I want to convert the 1mb ram card and 2mb ems card into 1 card, but my goal is to enable the framing to be lower than the lo-tech allows, and I want to allow the 1mb ram to be selectable by 8kb chunks rather than lotech designs 64kb chunks.. …

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Re: Dual amd K6 computer

Posted on 2021-01-17, 02:51

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

im longtime on ars and know hat monster through ars, but dont care enough about 20 year old posts to ask him. if it was dual socket 5, that would be a k5, not k6 as k6 was never made in a socket5 variant.

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Re: Dual amd K6 computer

Posted on 2021-01-17, 00:42

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Calling bullshit. K6/K6-2 chips didnt work with the intel SMP protocol because of patents. The K6 had its own SMP protocol but a chipset was never made for it!

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Re: DOS Memory Management on a 80286 with 2MB RAM

Posted on 2021-01-13, 02:13

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

well a umb is nothing more than writable ram between a000 and ffff. on a 286 its down to shadowram, etc via the chipset (suntac, headland, c&t, etc). (I wrote a umb driver for xt/tandy/pcjr).

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Re: DOS Memory Management on a 80286 with 2MB RAM

Posted on 2021-01-12, 21:33

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

i'll say it again, good old basic himem.sys will give you hma and umb memory for devicehigh/loadhigh.

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Re: DOS Memory Management on a 80286 with 2MB RAM

Posted on 2021-01-12, 18:09

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

a 286 can still use himem.sys with hma and umb memory blocks.

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Re: MT-32 wavetable daughterboard exist

Posted on 2021-01-06, 13:33

by

by BloodyCactus

in Marvin \ Sound

in Marvin \ Sound

root42 wrote on 2021-01-06, 13:27: BloodyCactus wrote on 2021-01-05, 15:09: its funny to see those old intel embedded mcs-96 / 8095 cpus. Those are actually as well on the original MT32, the LAPC-I and probably other LA32 based devices. err.. yes which is why I brought it up.. I dont know what even …

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Re: MT-32 wavetable daughterboard exist

Posted on 2021-01-06, 13:10

by

by BloodyCactus

in Marvin \ Sound

in Marvin \ Sound

well we can see it has 32kb of dram (4 x 64kbx1, so 32kb). original mt32 has 2 banks of 32kb ram. 1 32kb is for the BOSS chip, the other 32kb is for the intel mc96.

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Re: MT-32 wavetable daughterboard exist

Posted on 2021-01-05, 15:09

by

by BloodyCactus

in Marvin \ Sound

in Marvin \ Sound

its funny to see those old intel embedded mcs-96 / 8095 cpus.

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Re: Posts your 2021 New Years Resolutions.

Posted on 2021-01-04, 14:43

by

by BloodyCactus

in Milliways

in Milliways

hmm last years did not happen much for me so lets see; Achieve shodan in kendo. might be impossible if we stay in shutdown mode Get to B2 or at least B1 CEFR rating in Norwegian Learn guitar De-clutter Get my pinball design to finalised flipping whitewood to produce completed machine Loose 10lb / …

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Re: Using DOS debug, how to read bios/chipset registers?

Posted on 2020-12-23, 21:29

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

maxtherabbit wrote on 2020-12-23, 15:50: you can do direct port IO in DEBUG, no need for BASIC or any assembly -i 60 -o 60 FF heh I never knew that one! I use debugx which is a better debug ... 386 regs, and indeed the I (w|d) port functions.

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Re: Using DOS debug, how to read bios/chipset registers?

Posted on 2020-12-23, 14:43

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

well if you wanted to set a value to a port, you wouldnt use debug necessarily unless you wanted to write asm that way. start debug and type; a mov dx,060 mov al,0FF out dx,al mov ah,04c int 021 rip 100 g the "a" is for assemble, then you have lines of code setting the port and the value in al the …

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Re: Second Reality doesn't see Ultrasound

Posted on 2020-12-22, 01:49

by

by BloodyCactus

in Marvin \ Software

in Marvin \ Software

It was built for GUS. works fine for me, panic, unreal, 2nd reality, fishtro, etc. all of them work fine on my gus. Something else must be going on. I wonder if its memory is detected ok or not.

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Re: Xi 8088 by Segey Kiselev

Posted on 2020-12-17, 15:38

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I did not get it stable either. I gave up. I think there is something intrinsically wrong with the timing or something that worked for the chips Sergey had when he designed it.

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Re: DOS anti-virus recommendation

Posted on 2020-12-05, 17:22

by

by BloodyCactus

in Marvin \ Software

in Marvin \ Software

I use the last dos FPROT but that version is not for 8088/8086. There is a version for it that is obviously older so your taking a gamble running it.

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Re: Good OS selectors ?

Posted on 2020-11-27, 18:20

by

by BloodyCactus

in Marvin \ Software

in Marvin \ Software

System Commander that I paid for many years ago.

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Re: I'm need Power Kit from SC-55 original in WAV 44100/16 Stereo

Posted on 2020-11-11, 16:45

by

by BloodyCactus

in Marvin \ Sound

in Marvin \ Sound

Roland User wrote on 2020-11-11, 01:33: Yes ) only dry. Will be very good if you recording this as 88200 / 32 bit , this need for import in High Quality synthesizer. But with Velocity 127 considering that the SC55 only outputs 32khz at 16bit... upsampling wont give you anything extra.

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Re: Been thinking about trying my hand at DOS programming. What soundcards should I support?

Posted on 2020-11-09, 01:58

by

by BloodyCactus

in Marvin \ Sound

in Marvin \ Sound

gus + awe32.

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Re: DIY computer desks - post yer pics!

Posted on 2020-11-05, 14:28

by

by BloodyCactus

in Milliways

in Milliways

I built this from 2x4 and some pine board, stained it up. Its half computer desk, half workbench.

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Re: Text wrap in Infocom games-Please help

Posted on 2020-10-29, 17:12

by

by BloodyCactus

in DOS

in DOS

gargoyle is my terp of choice (which actually wrasp a lot of others and builds them with garglk so they are all gui-ised). http://ccxvii.net/gargoyle/

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