MTU Micro Technology Unlimited pages updated

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The MTU pages have been updated.
– New are 8 documents on the MT-130 page, like DISKEX (file exchange with e.g. CP/M), Wordpic, Forth 79, later version of the Full Screen editor.
– The K-1013 Dual density floppy controller has its own page now, with new information
– The MT-130 is emulated on Mame
– MTU K-1000 power unit photos
– the MTU projects by Eduardo Casino

Not yet added are the results of the ongoing discussions on the threads on forum64.de, like multipage K-1008 displays, K-1013 replica builds, CODOS V1 and V2 dissecting.

K-1008, photo by John Lucas

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...

EMUF M50734

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Thanks to F.J.Kamerewerd, DL6OE, I have a photo of a EMUF 65XX with a very special CPU, the Mitsubishi M50734.
This CPU is from a family of 65C02 cores with enhancements.
Around this M50734 the EMUF M50734 is published in MC Magazine 11 1911.

See here for the information available.

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...

TKChess Computerschaak Theo Kortekaas for the KIM-1

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Theo Kortekaas, a member of the Dutch KIM User Club, published in the club magazine the KIM Kenner, Issue 11 and 20, a chess program for the standard unenhanced KIM-1.
The program files are from audio cassette digitized wave files from 1982. for keypad and LED display.

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...

Usurpator II Chess for the 6502

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Usurpator Chess for the 6800 and 6502, a book by H.G. Muller

A small but capable chess playing program. Source published in the book for AIM 65.Typed in again in March 2025 and adapted for the 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...

Q-Chess 1.0

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Q-Chess 1.0 is a chess program for the KIM-1, from around 1980. The programs requires memory expansion of 8K at $2000.
The chess board is displayed at a TVT-6 (Don Lancaster) video display alongside the KIM LED Display and Keypad.
In 1981 Fer Weber, a member of the Dutch KIM User Club published an adaptation to use the program with a (video)terminal attached to the KIM TTY interface in the Dutch magazine the KIM Kenner Issue 17.
Binaries on tape and the documentation of Q-Chess were acquired in 1981 from Fer.
In March 2025 Hans Otten translated the source of the adaptations from Dutch to English in TASM format.
This makes Q-Chess playable again!

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...

KGN COMAL KIM-1 version

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COMAL is an interpreted structured language. A version for the KIM-1, Junior and DIS65 is available, distributed by the KIM Gebruikers Club Nederland as KGN COMAL in the 80ties.
KIM-1 version March 2025 by Hans Otten.

KGN COMAL V1 for the KIM-1 and clones, Elektor Junior and DOS65.

A product distributed and adapted to the Junior by the KIM Gebruikers Club The Netherlands in 1985-1987.
KGN COMAL V1.0 is for the enhanced Elektor Junior.
KGN COMAL V2.1 is for the DOS65 system.

In 2015 I saved KGN COMAL 1.0 and 2.1 binaries from Junior tapes and DOS65 disks.
With DOS65 came a very compact COMAL user manual.
In the Club Magazine KIM Kenner a Amazing Maze program is found.

Based upon these binaries and documents KGN COMAL is adapted to the 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...

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...