Recent content by resman

Here are my updates to the CoCo's Color Forth, source and binary: https://forum.vcfed.org/index.php?threads/color-forth-available-for-coco-with-decb.46819/post-925024

I think the converter you showed above is for VGA, which wouldn't match the 15 KHz input of the AppleColor 100. To get that, you'll need something like this: https://antoniovillena.com/product/%CF%80crt-addon/

It's actually both. You have to remove the back of the case and flip a little switch you'll find at the bottom.

Ooooh, it must be Schrodingers Win3 box

The copyright 1990 would align with that assertion as well

The model F layout has never been improved on, as far as I'm concerned. It irks me to this day having to remap Caps Lock to Control.

Well, keyboard preference may be about the most subjective topic ever, but I've found one that I'm satisfied with. I was looking for a decent keyboard for my Macbook Pro that gets used as a desktop when docked at home and wanted a minimalist keyboard that didn't suck. After a few options, I...

As someone who wrote a Java VM for the 6502, you will have a LOT of work ahead of you. At least the Java VM is really nothing more than a glorified p-code interpreter and I could do the compilation on a modern machine. Even still, cramming a 32 bit virtual memory environment into a 1 MHz, 8...

I imagine it was pretty common to run slower 287s on that motherboard. But yours was definitely a slower one for 1986.

How does that 287 work? IIRC, it was clocked at 8 MHz (I think yours is 5 MHz).

A couple of things to understand about the Compaq Portables video card. The default CGA card from Compaq was able to display CGA resolution in graphics modes, but higher res MDA style text modes. The built-in CRT was dual mode and able to switch between the two timings. If you were able to...

I spent a little time with 6809 assemblers while playing with Color Forth on the CoCo: https://forum.vcfed.org/index.php?threads/color-forth-available-for-coco-with-decb.46819/ The results were quite interesting: the original code was assembled with EDTASM that is probably a single pass...

Be careful, these things don't always end well: https://en.wikipedia.org/wiki/The_Mangler

I installed a Cyrix 486DRx2 in my Compaq 386/20e. It also has an external cache controller and no issues running Windows 95, Windows NT, and Linux. However, most of the fancy features of the CPU won't be enabled (including cache) until a utility is run to set them. Without running such a...

PPC and a few others, later. Alpha was an initial release target as I believe Cutler had a lot of input on its design. My first startup was designing hybrid 386/MIPS R3000 NT workstations (switching to 486/MIPS R4000 when they became available). The 386 couldn't compete performance-wise with...