macOS compiled version of KIM-1 Simulator

Thanks to user hobo of https://groups.google.com/g/pal6502 a macOS compiled app is now included.

KIM-1 Circuit Diagram high resolution poster, cleaned up again

A couple of weeks I published the KIM-1 Circuit Diagram in high resolution, cleaned up by Joshy of Forum64.

Since then I saw people print the poster, and I did have myself made a mouse mat and a poster in KIM-1 format.

To let the printing company do its work I made two new versions of the poster:

  • KIM-1 Circuit Diagram in high resolution, cleaned up by Joshy of Forum64 and cleaned up again by me (year 1975, some artefacts
  • KIM-1 Circuit Diagram in high resolution, cleaned up with wide borders (for canvas prints)

Look at the KIM-1 Manuals page for those new, large files images.

AIM 65 Assembler ROM R3224 source

On the pagetable Commodore source archive I found the source of the AIM 65 Assembler ROM R3224.

Now on the AIM 65 software page:

Assembler ROM R3224 source from pagetable github

Who were involved in the development of KIM-1 and TIM?

The 6530-002 (the KIM monitor), 6530-003 (the KIM tape routines) and 6530-004 (TIM, the teletype monitor) are in the ROM of these IC’s. Developed in/for/by MOS Technology.

For TIM the Story of TIM (DEMON as Ray Holt called it) tells about Manny Lomas.

It would be nice to know more who did hardware and software design for the KIM-1 (must have been a small team since they are so intertwined) of these innovative early 6502 development.

The story should start with Chuck Peddle and his team. They developed the 6502 and supporting IC’s like 6530 (RRIOT) and 6532 (RIOT).

The story of KIM talks about Don McLaughlin, MOS Technology founder and engineering manager of the project. Peddle and a programming manager named Bob Winterhalt agreed with the idea and the three men began the design. According to MOS Technology employee Al Charpentier, John May did the actual design.

Data Handler

Armin added to his blog page on the Data Handler a Rev Manual with his permission reproduced here.

CT-6502 Thaler

A small PCB (2x Eurocard) with a KIM-1 like 6502 system.Made by Thaler, Germany.I have now this computer, with the manual. So I scanned the manual, made some photos, dumped the ROM and enhanced the Thaler page!

PROMAX MI-650 trainer

1979 – PROMAX MI-650 trainer Educational trainersEducational instruments division was the result of our close commercial relationships with universities and technical schools. Work here was closely tied to the study plans of universities and technical schools in order to provide the educational material required by a variety of disciplines. Design work was begun on the MI-650B Microprocessor Trainer, based on the 6502 which appeared in 1975.

KIM-1 high resolution poster cleaned up

Joshy, Forum64 member, cleaned up the high resolution poster. Available here.

John Bell Z80 computer 80-280

I received a photo and manual scans of the 80-280 Z80 SBC by John Bell.

Posted in Z80