Re: Are modern keyboards safe to use on vintage PCs?

Posted on 2024-05-30, 04:29

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Well, in short answer, no. Actually the fact is just the opposite. You can hardly purchase the USB1.1 device today, not because cheap thing or not, but the USB1.1 controller is widely NOT produced. That means, today, even the cheapest and simplest new produced USB keyboards, are USB2.0 version in …

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Re: Are modern keyboards safe to use on vintage PCs?

Posted on 2024-05-29, 12:04

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

The key word is "USB1.1" Not only the keyboard, but also the mouse, if the PS/2-USB adapter is going to be functional, the USB device's protocal shouldn't be newer than Ver.1.1. Whether or not a keyboard/mouse uses USB 1.1 has no bearing on it working with a passive USB->PS/2 adapter. Chances are …

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Re: Best inexpensive Windows 98 CD-RW drive

Posted on 2024-05-27, 04:42

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Other then that agree with the above, no need to geta anything special and analogue audio cable is desirable if using for your games as well. If you go for a drive with visible headphone jack on the front, it's almost guaranteed that it will have analog audio output. Otherwise, especially for DVD …

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Re: LG "gh20lp20" super-multi - no CD audio in DOS

Posted on 2024-05-27, 04:34

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Probably. Direct audio output on IDE drives started to disappear around the time DVD-ROMs became common because windows 98 defaulted to using audio extraction for playback, and it saved the manufacturers from including a DAC.

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Re: Booting 386 from DOM or CF card.

Posted on 2024-05-27, 01:01

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

If the BIOS (with the right parameters) and a simple program like whatIDE are having intermittent troubles using the IDE interface, I don't see how XTIDE is going to have better luck. It sounds like you're going to be downgrading to 8-bit IDE just to workaround a bad I/O card.

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Re: 16 bit ISA extender

Posted on 2024-05-25, 13:33

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

dionb wrote on 2024-05-25, 12:23: Nice project! I was always wondering why nobody would have done a thing like this yet. Something similar, although not quite at the "lay the card down flat on your desk and have at it" level: https://www.martenelectric.cz/isa_16-bit_rise … ender_card.html

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Re: Booting 386 from DOM or CF card.

Posted on 2024-05-25, 11:00

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Set the HDD to none in the BIOS, boot from a floppy, run whatIDE and write down the numbers it reports so you know exactly what the drive's geometry is instead of guessing. Then set those in the BIOS and start from scratch (fdisk, formatting, etc). Formatting and/or running fdisk with the wrong …

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Re: 16 bit ISA extender

Posted on 2024-05-25, 09:33

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

tony359 wrote on 2024-05-25, 09:05: - Add a dedicated power cable That would be my first recommendation. Ribbon cables are lousy for carrying current.

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Re: HOW TO GET A PAPER 'PRINT OUT' USING DOSBOX??

Posted on 2024-05-25, 07:53

by

by jmarsh

in DOSBox General

in DOSBox General

DOSBox doesn't support printing.

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Re: DOSBox debugger

Posted on 2024-05-25, 03:37

by

by jmarsh

in DOSBox Development

in DOSBox Development

Just install DOSBox from the website, it includes the SDL DLLs because it is NOT built with static linking.

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Re: Starting up a new Dallas RTC chip

Posted on 2024-05-24, 22:07

by

by jmarsh

in Marvin \ General Old Hardware

in Marvin \ General Old Hardware

Just to add a bit more confusion: the Dallas chips with "A" on the end of their name have the RCLR pin connected, while the ones without it have that pin NC. I've come across more than one motherboard designed for the "non-A" model that has that pin grounded in the socket, so if you plug in a …

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Re: DOSBox debugger

Posted on 2024-05-23, 22:14

by

by jmarsh

in DOSBox Development

in DOSBox Development

Regular DOSBox builds do not use static SDL libraries.

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Re: DOS 4.0 from source to system

Posted on 2024-05-23, 02:52

by

by jmarsh

in DOS

in DOS

Why do you think that's wrong, e.g. what LBA do you think that will attempt to read vs. which LBA should it be reading? The sector parameter for that BIOS call is based at 1, not 0... so the head parameter is what you should probably be focusing on but without knowing how the disk is partitioned …

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Re: Anyone staying nearby old Sierra On-Line Oakhurst HQ?

Posted on 2024-05-21, 05:03

by

by jmarsh

in Milliways

in Milliways

RoboGato wrote on 2024-05-21, 03:00: Here's what the building looks like today from the front, as of May 2024. Did you forget to attach the pic?

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Re: Smoke coming from PAS16

Posted on 2024-05-20, 06:54

by

by jmarsh

in Marvin \ Sound

in Marvin \ Sound

I wouldn't be plugging it in with that low resistance between VCC and GND.

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Re: SVGA/VESA programming

Posted on 2024-05-20, 06:53

by

by jmarsh

in Marvin \ Video

in Marvin \ Video

I gave your reply more attention than any reply to a dead, two-year-old thread deserved.

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Re: SVGA/VESA programming

Posted on 2024-05-20, 06:39

by

by jmarsh

in Marvin \ Video

in Marvin \ Video

I do not think it's true. Page flipping, virtual pages and virtual scrolling worked the same way in VESA 1.2 banked modes as in VESA 2.0+ LFB modes, albeit slower. There were no special functions added in VESA 2.0 regarding virtual scrolling. Or what do you mean exactly by 'panning' that required …

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Re: SVGA/VESA programming

Posted on 2024-05-20, 03:32

by

by jmarsh

in Marvin \ Video

in Marvin \ Video

And the trains and aircrafts had the highest priority. And the rest simply didn't move at all. Except when scrolling. Do you not see how the individual windows all follow their respective vehicles as they travel? That's not color cycling. You could fill the screen with those and it wouldn't have …

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Re: SVGA/VESA programming

Posted on 2024-05-19, 23:50

by

by jmarsh

in Marvin \ Video

in Marvin \ Video

rasz_pl wrote on 2024-05-19, 23:43: I dont think VESA even had any panning standardized in early versions (1-1.3). It doesn't work with those versions, it requires 2.0 with a LFB - either from the card's BIOS, or via the embedded version of univbe.

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Re: Quake DOS page fault and other jankeroo

Posted on 2024-05-19, 22:34

by

by jmarsh

in Marvin \ Software

in Marvin \ Software

CWSDPMI doesn't like working with SB PCI cards when they use high IRQs (10/11). You can replace it with HDPMI32 instead as a workaround.

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