Re: Bought these (retro) hardware today

Posted on 2016-03-17, 23:43

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

MT32, old-old style with PGA. Serial number in the 82 range.... I _think_ it has roms 1.05 if the sickers are correct and a reverb of 2.00, Need to wait for the PSU to arrive so I can power it up. Strange that two of the roms are socketd and the rest are soldered down to the pcb. I think the reverb …

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Re: Future of VMware Workstation

Posted on 2016-03-17, 16:23

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by BloodyCactus

in PC Emulation

in PC Emulation

Ive not run vmware workstation in years, been long since using virtualbox. I've run a subset of games on w98, 2k, xp just fine inside virtual box. it depends what api's the games hit since you dont have a full blown nvidia driver/ati driver you just have the virtual one.

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Re: What retro activity did you get up to today?

Posted on 2016-03-16, 16:23

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I updated my copy of openwatcom v2 from git and did a full build on linux (generated all host/targets), to create a new binary release for dos. zipped its like 21mb, just the dos host/target. I only just noticed OWv2 cant create .COM anymore, but 11c can. not a huge deal really.

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Re: Roland MT-32, CM-32L + General MIDI for $50 Building a MIDI box

Posted on 2016-03-14, 17:26

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

if you dont need an full stack OS underneath, some microcontrollers have plenty of IO and sram+rom, or yes, fpga would give you the fast pin control. if you need lots of io at speed, yeou cant bet an fpga.

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Re: Teach me some electronics repair skills.

Posted on 2016-03-14, 16:26

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

since you want to do pcb repair, a nice triple combo of solder station, hot air gun and desolder gun is good.. I have hakko 888 (analogue dial, but I think all current ones are digital), hakko 808 for desoldering, makes through hole desolder super quick and easy, and cheap noname hot air gun from …

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Re: Roland MT-32, CM-32L + General MIDI for $50 Building a MIDI box

Posted on 2016-03-14, 16:15

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

It comes from benchmarking. The PI might be 1.2ghz or 900mhz but thats not the speed it can hit its external bus (gpio) at. Now I think about it that was the original pi, PI2 in C you could max out about 20mhz? been a while since i looked at the pi under my scope. This is talking raw C interface, if …

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Re: Roland MT-32, CM-32L + General MIDI for $50 Building a MIDI box

Posted on 2016-03-14, 15:13

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Actually no; I was thinking on removing the glue logic and feeding the ISA signals (through level translators) directly to the pi; do the decoding in software. As for the switches and LCD, those could be moved to I2C to save on pins. how are you going to feed the required number isa pins to the …

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Re: Help Identifying Commodore keyboard.

Posted on 2016-03-10, 16:21

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

amiga 4000 had 6 pin mini din. amiga 3000 had 5 pin din. also the cd32 had 6 pin mini din but different pinout, but what you have is not a cd32 keyboard :) just a plain old 4k miggy keyboard Now that you mention that, this keyboard used to work with an Amiga CD32 system so now I'm totally confused …

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Re: Help Identifying Commodore keyboard.

Posted on 2016-03-10, 02:27

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

amiga 4000 had 6 pin mini din. amiga 3000 had 5 pin din. also the cd32 had 6 pin mini din but different pinout, but what you have is not a cd32 keyboard 😀 just a plain old 4k miggy keyboard

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Re: Newly made Gravis Ultrasound compatible cards ... what's the degree of interest?

Posted on 2016-03-09, 03:16

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by BloodyCactus

in Marvin \ Sound

in Marvin \ Sound

be careful with openwatcom, the patch from real watcom 11.0b to 11.0c (openwatcom) removed lots of stuff. 10.6 or 11.0a/b are ok but id avoid 11.0c/openwatcom. ksh was common. sounds like they used the mks toolkit in the build system. mks toolkit provided dos with bash/ksh/tcs/cshell etc. and lots …

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Re: Castle Adventure exe packing type?

Posted on 2016-02-27, 21:11

by

by BloodyCactus

in Milliways

in Milliways

yeah, its not packed. 1 second in a hex viewer would tell you that.

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Re: Bought these (retro) hardware today

Posted on 2016-02-26, 00:59

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

pnp book showed up in the mail today to add to my collection of ISA books. These bookend old and new editions of the pink shirt book (yay pink shirts) and other old dos books

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Re: Recommend me a Creative ISA card

Posted on 2016-02-24, 17:09

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

clueless1 wrote: The OPL3 emulation is identical, don't get me wrong. the emulation might be identical, but its also not genuine OPL3... which makes a difference imo.

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Re: Bought these (retro) hardware today

Posted on 2016-02-24, 13:43

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Those are awesome... I could have me some serious fun with them, and I did not even know such things existed! They remind me of being back in college with those old bread-boards pluggin' in 555's timers and all sorts. What are your plans for them? yeah I only got the bundle to get the full length …

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Re: Bought these (retro) hardware today

Posted on 2016-02-24, 03:31

by

by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

A full length 16 bit ISA prototype board (got a bunch of NOS 74LS chips too), slot metal bracket is behind it. looks like its cut for something big. maybe parallel port or larger. old scsi? not sure. http://i.imgur.com/3kArfHfl.jpg A used prototype board, its got some standard 25LS + 74LS chips, a …

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Re: Industrial Shoebox

Posted on 2016-02-22, 13:54

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by BloodyCactus

in Marvin \ System Specs

in Marvin \ System Specs

yep, I could have gone small half length sound card. There are a couple of smaller shoebox chassis on ebay, not many, but it would the depth down by 6+? inches maybe. But the original idea that drove this needs full size. The plan is to try and put one of these babies in it if I can get one. INMOS …

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Re: Industrial Shoebox

Posted on 2016-02-20, 02:31

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by BloodyCactus

in Marvin \ System Specs

in Marvin \ System Specs

Thanks Stiletto. I've uploaded the dram_chk utility I wrote (com file + c code for Watcom C). http://kråketær.com/files/dram_chk.zip (if the link + url dont match, its just how the web internationalises non english letters in domain names. so http://xn--krketr-jual.com/files/dram_chk.zip === http:// …

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Industrial Shoebox

Posted on 2016-02-20, 00:14

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by BloodyCactus

in Marvin \ System Specs

in Marvin \ System Specs

Figured, I should do a real post after joining! My industrial shoebox build! So, for some tinkering and upcoming projects I needed ISA slots. I opted to go for a nice ISA backplane instead of a huge motherboard / chipset extravaganza. I did briefly look at PICMG boards (those isa slot boards that …

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Re: Alternatives to storage devices (hard disk drives) in "legacy" PC's - advice needed

Posted on 2016-02-19, 01:10

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

going through this now. I got a $5 adapter that was dual CF. jumper select for master/slave and jumper select for 5v or 3.3v to the card. the biggest problem, old ide controllers are not made for handling 64GB cf cards. 1/2/4gb... now if you get into pci level stuff your much better off but on 386/ …

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Re: What retro activity did you get up to today?

Posted on 2016-02-09, 15:23

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by BloodyCactus

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

I got the second to last piece in for my industrial 486 pc build... just waiting for one more part on a slow boat from china. finding cheap industrial chassis sucks 🙁

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