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djrm's latest activity

  • djrm
    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...
    • glider-gun-run.png
    • basic-load.png
    • glider-gun-start.png
  • djrm
    djrm replied to the thread AIM-65 Video Output Success..
    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...
    • AIM-65-CRTC-Font.png
  • djrm
    djrm replied to the thread 1541 Drive & AIM-65 help..
    I tried moving some CRTC page zero memory and found a solution, see here...
  • djrm
    djrm replied to the thread AIM-65 Video Output Success..
    I have been investigating an incompatibility problem which shows itself when trying to access files using the AH5050 interface when the...
  • djrm
    djrm replied to the thread 1541 Drive & AIM-65 help..
    Ive been reading up on using forth with disk access in the AIM-65 Forth manual and found the implementation notes for the buffer...
  • djrm
    djrm replied to the thread 1541 Drive & AIM-65 help..
    I've had a play using cbmctrl to see how the SD2IDE behaves with relative file creation, everything seems in order using the scrips...
    • Screenshot from 2025-05-22 18-33-21.png
  • djrm
    djrm replied to the thread 1541 Drive & AIM-65 help..
    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...
  • djrm
    djrm replied to the thread 1541 Drive & AIM-65 help..
    Im looking through the ah5050 rom disassembly trying to understand how the system works using the file 'AH5050 - commented...
  • djrm
    djrm replied to the thread 1541 Drive & AIM-65 help..
    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...
  • djrm
    djrm replied to the thread 1541 Drive & AIM-65 help..
    This small prototype board is my AH5050 interface, its connected to a SD2IEC 1545 emulation devic. The board also holds a promicro...
    • IMG_20250518_223739889_HDR.jpg
  • djrm
    djrm replied to the thread 1541 Drive & AIM-65 help..
    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...
  • djrm
    djrm replied to the thread 1541 Drive & AIM-65 help..
    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...
    • IMG_20250517_115910752_MP-COLLAGE.jpg
    • IMG_20250517_121635698_PORTRAIT-COLLAGE.jpg
    • IMG_20250517_122318538_MP-COLLAGE.jpg
  • djrm
    djrm reacted to spelunx's post in the thread Expanding the WY-60 font ROM with Like Like.
    Here is the project: https://sourceforge.net/projects/wy-60-fonts/
  • djrm
    djrm replied to the thread AIM-65 Video Output Success..
    Greetings Scott, I discovered your design and now have a working display board attached to my AIM-65 recreation. I have wanted to have...
  • djrm
    djrm replied to the thread AIM-65 ACIA project.
    Greetings, I have put together a transmit and receive driver for my AIM65 recreation, it uses a 6551 ACIA. The receive driver uses an...
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