MOS Technology documents added

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A recently acquired KIM-1, of the first generation (that means, No Revision, the first series!) came with a stash of documents from MOS Technology from 1976.

I have scanned those documents and they are available on this website now.

KIM-1 User Manual First Edition, January 1976
KIM User Manual errata letters for First Edition
MOS Technology Floating point BCD routines
MOS Technology January 1976, Rev 0.
Numbers of six digits BCD Mantissa,
a two digit BCD Exponent and the signs for the mantissa
MCS6532 Design Specification
Published before the first 6532 datasheet
MCS6500 Microprocessor Software Support
Guide for using the MOS Technology Support Software on United Computing Systems timesharing service
Describes the MCS6500 Cross Assembler, Simulator and DMP to ROM programs.
MCS6500 datasheet May 1976
MDT 650 product description
MOS Technology newsletters
Simplifying Conversion from 6800 to 6502
TIM Software development Aid Product description
KIM 2-3-4-5 product descriptions

Warranty card that came with this KIM-1

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

6530 hardware emulator in FPGA in 40 pin DIP

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Imagine a true 6530-002 and 6530-003 replacement , the RRIOTs of the KIM-1

Now with modern FPGAs you van do that: a 40 pin PDIP replacement: the reDIP RIOT is made for that purpose.

Here is the code for the reDIP to make it a 6530-002 or 6530-003:

Github with gateware for Commodore MOS 6530 RRIOT

Since the 6532 is in fact a subset of the 6530 (no ROM, more RAM), it seems not too difficult to make a 6532 replacement this way.

The reDIP RIOT is an open source FPGA board which combines the following in a DIP-40 size package:

Lattice iCE40UP5K FPGA
1Mbit FLASH
5V tolerant I/O
The reDIP RIOT provides an open source hardware platform for 6530 RRIOT / MOS 6532 RIOT replacements.

See here the github for this project

https://github.com/daglem/redip-riot

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

PAL-2 is now on sale

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The longawaited successor of the PAL-1, the PAL-2 is on sale now.

https://www.tindie.com/products/kim1/pal-2-a-mos-6502-powered-computer-kit/

My first look at the PAL-2 is here.

Here the first video by my friend Nils of a working PAL-2:

My PAL-2 #1:

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

KIM-5 Resident Assembler/Editor available!

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MOS Technology, part of Commodore in 1977, not only sold the KIM-1 SBC but added hardware and software as KIM System Products.

Not only hardware, a Motherboard (KIM-4), RAM memory expansions (KIM2, -3, -3B) and a prototype board (KIM-6) but also software, like KIM Math subroutines (KIMath), TIM (RRIOT + document).
This has been documented for quite some time now on this website with photos and manuals.

I have been looking for years for the KIM-5 Resident Assembler/Editor. Manuals on Assembler and Editor are already known. The software, delivered in 3 ROMs of type 6540, on a KIM-5 ROM board was never dumped before, and the existence, besides the pricelist shown here and some advertisements, doubted by many, including old Commodore employees.
Many years I searched on the internet on fora, websites and friends in the retro world, it did not lead to a dump of the KIM-5 ROMs.

A couple of years ago I saw a listing on ebay.de of a lot with a a KIM-5 with ROMs and a KIM-3B board. I was too late to bid. I could not contact the seller or buyer afterwards. But now I knew the KIM-5 did exist, and had some photos as proof.

A year later Stefan Hamann approached me to ask for information on KIM-1 material he bought from ebay. He was the buyer of the lot!
Stefan was so nice to lent me the KIM-5 (and KIM-3B) and the EPROMs he obtained. I have finally a KIM-5 in my hands with ROMs!

The ROMS have been dumped, tested in the (updated KIM-1 Simulator to 1.5.1) and source recreated. The KIM-5 Resident Assembler/Editor is preserved!

Read all about this on the newly organized and enhanced KIM System Products pages.


Resident Assembler/Editor at 9000-A7FF

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

Different versions of KB9 Microsoft Basic for KIM-1?

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MOS Technology 6502, 9 DIGIT BASIC by Microsoft, Copyright 1977. often nicknamed KB9, is an early version of Microsoft Basic adapted for the KIM-1. With 9 digit precision and the Microsoft version of Basic a very usable high-level language for a KIM-1 with 16K extra RAM and a videoterminal or teletype.
I bought my version in 1979, serial number 2167. Tape ID #01, 2000-4260. Start 4067.
It is a version that works around the missing ROR instruction on early 6502 CPU’s.
All versions of KB9 on the internet are from the cassette dump I made in 2006, including the brilliant source version on pagetable. Still have a lot of fun with it as well as all the KIM clone users.
I found a photo of MOS TECH 9 DIGIT BASIC FOR KIM, COPYRIGHT BY MICROSOFT 1977 2000-437D ID #101 ST. 4065 S/N 217 cassette of a much lower serial number.
What is interesting is the higher End address, 437D versus 4260.
Alas no dump of this cassette is known, so this stays a mystery. as is the illegal tape ID 101.

My MSBasic for the KIM-1 cassette

Another MOS TECH BASIC for KIM-1

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

RNB VAK-1 photos

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Thanks to Eric Dennison I can show photos of the RNB Enterprises VAK-1 motherboard.

The large motherboard and the huge case with homebuilt 16K static RAM memory card are representative for the KIM-1 systems then!

Photo by Eric Dennison

Photo by Eric Dennison

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

The Sorbus computer

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A new development! A minimal 65(C)02 system, called Sorbus designed by Sven Oliver Moll (SvOlli).

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

Instant Assembler for the KIM-1

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A program by Alan Cashin.

The following text and other files are by (the ‘I’) Alan Cashin.

I am currently looking through old material that has been in storage for many years. I came across a listing of my ‘instant assembler’ written for the basic KIM-1 with 1kB (plus a bit) memory. It was written in about 1979 to help enter assembler programs, saving the task of converting mnemonics to hex code. The tape with it on is long gone, so I coded it for the acme assembler then ran it in your excellent simulator and it works.

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

Corsham projects, a tribute to Bob Applegate

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Bob Applegate designed and sold for many years boards of interest for KIM, AIM 65, SYM-1 and the SS50/SS-30 users, his one man company was called Corsham TEchnology.

That ended last year when Bob died, and I miss him. A good friend with whom I exchanged many emails about the KIM-1 and KIM Clone.
I have bought many of his fine products. And many others did also, and due to the open nature of his projects, many variants appeared build by others.

His webpages disappeared in July 2024. His family does not respond to attempts to contact about the legacy of Corsham, many of us tried.

Therefore I decided to duplicate here all I have of Bob’s projects, in a way that makes it more accessible than his webshop sale pages, Github, private email exchanges and older downloads.

Here it is: Corsham Bob Applegate projects.

Enjoy, enhance, duplicate, and keep Bob in our memories, I claim nothing, I do not sell any Corsham product, I do not have more information like gerbers, PCB designs.
This is all Bob ever published!

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...

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RetroSpy Technologies produces a range of retro (Vintage) hardware products that are of interest for the KIM-1/SYM-1/AIM 65 owner. Also the PAL-1 user may benefit from the products!
Retrospy is inspired by the Corsham Technologies products and since Bob Applegate is no more among us, produces similar/inspired products.

I bought several products from RetroSpy.
KIM-1 RAM/ROM Board
MOS 6530 Replacement for the KIM-1 SBC
PAL-1 Motherboard Expansion Kit
Bus extender
Other interesting KIM-1/AIM 65/SYM- related boards on the Retrospy shop:
AIM 65 I/O board
SYM-1 I/O board
SYM-1 SymDos I/O board
SYM-1/AIM-65 RAM/ROM board
KIM-1 I/O board
2532 to 2764 EPROM adapter
SD Card Storage System (like the Corsham one)

I should have bought he KIM I/O card also, for the 1541 connector, next time!

See also:

Focal-65 V3D for TIM and KIM-1

Focal on the 6502, a page on this small language, originating for Digital Equipment. A small interpreter (about 5K) for...

John Bell Engineering catalogs

Thanks to Dallas Shell I have added the 1984 and 1988 catalog to the John Bell Engineering pages. Also a hand drawn and...

New KIM-1 info and more

Added again some KIM-1 information! MDT 650 photos (John Feagans) Scans from the Commodore International Historica...

KIM-1 Simulator simple demo

To test my new HDMI 4K USB Video Capture I made two videos. Simulator running on one notebook, the other notebook with t...