A collection of articles about the KIM-1, original in Dutch, here translated to English and with source and binary of the programs published as listings.
The original articles were scanned. converted back to text with OCR and translated to English.
The documents in Dutch and English are also published again in PDF format.
If a program listing was included the assembler source is reconstructed in modern MOS Technology syntax. The binary output is compared to the printed binary code and a papertape formatted binary is included.
This is a work in progress. Each article takes half a day of work. See the page on Radio Bulletin articles of candidates to be processed later. See the list of articles on the TODO list.
Downloads available for every article:
– the original scanned article in Dutch
– the Dutch OCR’ed and recreated article
– the English translated form the OCR result and recreated article
– an archive with source and binary if applicable
Articles here:
Mastermind on the KIM
Radio Bulletin December 1977
You are probably familiar with the well-known game Mastermind. Normally this game is played by two people, with only one person actively trying to guess a hidden code. The second person has the passive task of indicating, with black and white pegs, whether the chosen colours are correct and whether they are in the right positions. Replace the colours with digits, the black and white pegs with letters, and the KIM takes the place of the passive player. At your command, it chooses a secret colour combination and uses letters to indicate how many digits have been correctly guessed. A special “cheat button” makes it possible to peek secretly behind the screen; the consequence, however, is that the turn counter is increased by 30 points.
Runs on the unexpanded KIM-1 with keypad and seven segment display
Morse decoding with the KIM
Radio Bulletin July August 1979
It may be quite nice to be able to say that you are the owner of a microcomputer (if things continue as they are now, in a few years this will be just as commonplace as owning a pocket calculator is today), but even nicer is to also own programs and to be able to spend a number of useful and above all pleasant hours with the device. The following program, written for the KIM, may contribute to this. It makes it possible to display received Morse signals as ‘readable writing’ on the KIM display. Although with a seven-segment display by no means all letters and punctuation marks can be formed, and therefore certain symbols had to be found for these characters, after some practice it is quite possible to read messages sent in Morse code from the display. The program can be used not only for displaying received messages, but also for practising sending and for checking the sending technique. From what is shown on the display one can determine what mistakes are being made while sending
Melodiant
Radio Bulletin august 1977. Dick Boer.
The Melodiant plays a complete melody of up to 256 tones on a command given by you. The display shows which note is being sounded. This makes the Melodiant a very versatile instrument. For example, you can play duets together with the Melodiant by typing in one of the two voices beforehand. The advantage over a tape recorder is that the melody can be played at any desired tempo, which can make practicing easier. What about the Melodiant as a music teacher? A note appears on the display, and the student must try to sing or whistle that note. Afterwards, the loudspeaker can be switched on to check. The Melodiant will also flawlessly play back the most difficult rhythms, slow or fast as needed.
But the possibilities do not end there. We can make the Melodiant play so fast that the individual tones are no longer recognizable. This can produce the strangest sound effects.
Frequencymeter
Radio Bulletin January 1981 M. Dohmen, R. Koekoek
The program described here can measure a frequency up to, mind you, 100 kHz, with a deviation of no more than one cycle in 65536. The frequency is read out in five digits. The program was written for the KIM, but is also well suited to other 6502 microcomputers, notably the SYM and the Junior. Once started, the program measures a frequency continuously when key “6” is pressed, and once when key “0” is pressed.
EPROM Programmer
Radio Bulletin 1978 J.M. v.d. Peijl
The EPROM (Erasable PROM) can also be programmed by the user. In addition, it can be erased again using ultraviolet light. Thus an EPROM containing obsolete or outdated programs can simply be erased and reprogrammed. The most popular EPROM at present is the 2708 (1K byte), which has fallen considerably in price recently, partly because of its successors, the 2716 and 2732, with 2K and 4K bytes respectively. Programming such an EPROM is a task that the KIM can handle very well. In this first part you can read how, by adding a few simple circuits, the KIM takes over the job of an expensive PROM programmer. In a subsequent article we will describe several practical versions.
TODO list
4 Kbytes EPROM-kaart september 1981
ACIA6850 Seriele in- en uitvoer September – November 1983
Automatische register uitlezing feb 1978
eprom programmer 2
Geheugenuitbreiding voor de KIM dl 1 sept 1979
Geheugenuitbreiding voor de KIM dl 2 oct 1979
Geheugenuitbreiding voor de KIM nov 77
Grafisch display monitor voor de KIM 1979 1981
Grafisch TV-display dl 1 sept 1978
Grafisch TV-display dl 2 nov 1978
Gregoriaanse klok mei 1981
Kim timer en klok mei 1980
Knutselen met cassettedeck maart 1980
Lijnen op het grafisch display Februari 1982
MDCR voor de 6502 April 1984
Mini assembler maart april 1981
Moederprint Juli 1981
Parallele in- en uitvoer VIA en PIA Mei 1984
PIA-buffer November 1983
Telex monitor programma april juni 1981
Zero Page shifter aug 1979
