Re: The Phoenix XT

Posted on 2016-06-13, 17:08

by

by carlostex

in Marvin \ System Specs

in Marvin \ System Specs

My XT is even more of a hybrid, yet it works just like an XT of the age. (Except for the video, because I do not have a CGA or Hercules, so I fell back to a Trident 8900D and SVGA CRT.) More or less like mine. I consider mine to be a very unusual Super XT, with lots of enhancements that the …

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Re: Bought these games today

Posted on 2016-06-13, 13:35

by

by carlostex

in Milliways

in Milliways

Latest purchases: https://pbs.twimg.com/media/CjTpV0PWkAAWiqm.jpg:large https://pbs.twimg.com/media/CjTqLI3XIAAMiYr.jpg:large https://pbs.twimg.com/media/CjyIVJAUkAQgEQG.jpg:large My current collection is composed of: 1942: The Pacific Air War Gold 4D Boxing 688 Attack Sub A-10 Tank Killer 1.5 …

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Re: The Phoenix XT

Posted on 2016-06-11, 18:41

by

by carlostex

in Marvin \ System Specs

in Marvin \ System Specs

Someone may cry sacrilege, having IBM parts in a non-IBM case, but I had no choice. What matters is to see the hardware being put to good use. I agree that an IBM case would be much better but it is what it is. This reminds me that i need to fix my 5160 motherboard. I should be doing that in a …

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Re: Anyone built this PC-Retro IBM clone computer?

Posted on 2016-06-09, 19:33

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Really cool, but i would prefer Sergey's Xi8088. In fact i would only consider to buy Sergey's Xi project if it could run 8086/V30 instead.

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Re: My Future Super Turbo XT build

Posted on 2016-06-09, 16:23

by

by carlostex

in Marvin \ System Specs

in Marvin \ System Specs

Update! Another breakthrough on this system. I really wanted to have an internal ZIP drive working. Iomega ATAPI ZIP drives won't work with XT-IDE cards because these use non standard ports. The Iomega driver was compiled with the standard IDE ports in mind. So, i questioned at VCF if there was any …

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Re: PCEm. Another PC emulator.

Posted on 2016-06-08, 10:22

by

by carlostex

in PC Emulation

in PC Emulation

v11 is now out. Changes since v10.1 : Fixed broken 8088/8086 timing As ever, it's at http://pcem-emulator.co.uk/ The 8088 emulation is still not quite there yet. An 8088 at 12MHz in PCem is faster than my real XT clone at 12MHz. Significantly faster for an XT and considering that the CPU on my …

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Re: Keyboard vs. Soda -- keyboard lost :(

Posted on 2016-06-07, 19:28

by

by carlostex

in Milliways

in Milliways

Get it all open and get the membranes all washed and clean.

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Re: The 486DX 33 MHZ Retro Gamer - Or The Adventure Games MIDI Master

Posted on 2016-06-07, 16:19

by

by carlostex

in Marvin \ System Specs

in Marvin \ System Specs

Still about the monitor: Can you manually adjust V-H position? Does it have an automatic screen adjustment?

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Re: The 486DX 33 MHZ Retro Gamer - Or The Adventure Games MIDI Master

Posted on 2016-06-07, 14:09

by

by carlostex

in Marvin \ System Specs

in Marvin \ System Specs

Hey Mr. Hardware Mod i think you hit the edit rather than the quote button. 🤣

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Re: The 486DX 33 MHZ Retro Gamer - Or The Adventure Games MIDI Master

Posted on 2016-06-07, 13:18

by

by carlostex

in Marvin \ System Specs

in Marvin \ System Specs

I like the monitor. Which model is it? 5:4 ?

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Re: The PCjr

Posted on 2016-05-30, 15:43

by

by carlostex

in Marvin \ System Specs

in Marvin \ System Specs

Awesome! Most amazing PCjr i have ever seen.

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Re: MIDI Devices 101

Posted on 2016-05-30, 11:05

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

DX7_EP wrote: MT-32 New: Headphone jack included. Vibrato is notably faster, so this is not a popular choice. The MT-32 New is a second generation LA synth. It does not have the fast vibrato. Only the 3rd generation Roland CM32LN and CM500 have that bug.

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Re: MIDI Devices 101

Posted on 2016-05-30, 10:56

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If you're just interest in: Games and nothing more: Get a first generation SC-55. Games and MIDI music: Get an SC-55 and a Yamaha MU-50/80/100. Just MIDI music/production: Get a Yamaha MU-50/80/100. If you have a lot of cash get an SC-88 too. Games and MIDI music (tight budget and space): Get a …

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Re: Bought these (retro) hardware today

Posted on 2016-05-28, 00:02

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

carlostex wrote: Its still a card far better than the AdLib Gold, although the CQM FM synthesis on the AWE is going to be more competent than what the Maestro has to offer. I must be losing brain cells at an astonishing rate. I meant AWE64 Gold.

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Re: Bought these (retro) hardware today

Posted on 2016-05-27, 18:01

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

@HighTreason If the Maestro 32/96 had a real OPL3, it would be simply the best card for DOS games. Its still a card far better than the AdLib Gold, although the CQM FM synthesis on the AWE is going to be more competent than what the Maestro has to offer.

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Re: Somebody please explain varying CPU speeds

Posted on 2016-05-27, 17:57

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Intel or other manufacturers don't put different dies in a single silicon wafer. Dies are first checked to work and then packaged. After this they probably do the "burn in" tests (not sure if they call it like this) and speed tests. So, as Phil says, they test the CPU's at various speeds and go …

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Re: Are my ROM extensions overlapping? (FDC/XT-IDE bios)

Posted on 2016-05-25, 07:19

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Could be the initialization order. With the floppy BIOS at D000 the XTIDE is started first. I can confirm this. Which version of the XT-IDE are you using? VCF? You can always dump the ROM on the FCD card and glue it to the XT-IDE. Just make sure XT-IDE comes last. That's what i do with my boards …

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Re: Are my ROM extensions overlapping? (FDC/XT-IDE bios)

Posted on 2016-05-25, 01:06

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If the FDC card is so flexible in terms of address selection why not try it at CA00h or CC00h?

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Re: Are my ROM extensions overlapping? (FDC/XT-IDE bios)

Posted on 2016-05-25, 00:01

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

How big is the ROM size in the FDC controller?

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Re: Are my ROM extensions overlapping? (FDC/XT-IDE bios)

Posted on 2016-05-24, 19:19

by

by carlostex

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

My XT-IDE rom is configured to start at c800h, which means that at most it could consume the address space between c800h to d000h. It will most probably only consume between C800h and C9FFh. XT-IDE BIOS is by default 8kb only unless you are using some other version. When I configure the FDC to use …

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