djrm's latest activity

Conway's Life on AIM-65 recreation Hello everyone, here are some notes about my recreation of an AIM-65 together with Scott Baker's...

There is a fuzzy image in the CRTC manual showing all the available characters available but I never found a better version. What I have...

I tried moving some CRTC page zero memory and found a solution, see here...

I have been investigating an incompatibility problem which shows itself when trying to access files using the AH5050 interface when the...

Ive been reading up on using forth with disk access in the AIM-65 Forth manual and found the implementation notes for the buffer...

I've had a play using cbmctrl to see how the SD2IDE behaves with relative file creation, everything seems in order using the scrips...

Thanks, I'll look into this. The record length byte is 0x80 Maybe this is a primitive to access a block from a file for the R/W...

Im looking through the ah5050 rom disassembly trying to understand how the system works using the file 'AH5050 - commented...

Unfortunately not, it is simply fixed in place where you see it. The system was an alarm controller intended for to be run 24/7, a...

This small prototype board is my AH5050 interface, its connected to a SD2IEC 1545 emulation devic. The board also holds a promicro...

I found this small program useful to test the AH5050 initialisation, it is a dummy STARTUP file, does nothing but print a message to the...

Here are photos of a couple of AIM-65 systems, the first is an original looking Rockwell, the second is a DYnaterm in a 19 inch rack...

Here is the project: https://sourceforge.net/projects/wy-60-fonts/

Greetings Scott, I discovered your design and now have a working display board attached to my AIM-65 recreation. I have wanted to have...

Greetings, I have put together a transmit and receive driver for my AIM65 recreation, it uses a 6551 ACIA. The receive driver uses an...