jdreesen's latest activity

Here is the sourcecode for CTOS, the cassette operating system for the earlier versions of the DP2200 / DP1100. Later versions of the...

Here's a small homebrew 68000. It has 2 MB of SRAM and 128k of EEPROM. Runs at 25 MHz. Two serial ports at 38.4k baud via a 68681...

>> Jos: So what happened to your PSU when it killed itself? Mains rectifier shorted, that also took out the main chopper transistor and...

That is the advantage of the newer type PSU in my machine : at least no live voltages go into the backplane.....Conceptually it is the...

As Mattis mentioned i have a DP1100 ( DP2200 minus cassettes) I also have the full set of cassettes for DOS.D 2.6 Still have not found a...

I had to repair some of the Tek 4010 faults using (sometimes barely adequate) substitutions available locally. Specifically the...

I would love to get my hands on a Dimension 68k hard disk controller. After many attempts at contacting DimensionDude I received a...

We can talk about a new MFM version end of September, that is if AK's bears dont get me first !... Relying on a 4054 does limit the...

I had not read the whole thread, sorry. But yes, you are right w.r.t. the images.

The DRP you'll receive is tested, so if it does not work at your end you'll have to debug the 4052 end. Important : which images...

Well, since the discussion is public anyhow : I do indeed have a spare, but incomplete, 4052 keyboard. Keycaps differ between 4051 and...

The Datapoint 9350 is also a Diablo-30 series disk, with 24 sectors. I have the controller & drive, but no documentation beyond the...

Brain fart....that was of course the assembler that I posted, not the disassembler.... Like you i used a 6800 disassembler ( fd9dasm...

It is...

If you need to disassemble lots of 4052 code, then you could use my adaption of Bruce Tomlins universal disassembler. This includes all...