MOS Technology, as part of Commodore, enhanced their KIM-1 offering with a range of add-on products.
Under the name KIM System Products hardware such a Motherboard (KIM-4), Memory expansions(KIM-2, 3, 3B) and software like the Cross Assembler, the KIM-5 Resident Assembler/Editor, and KIMath.
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KIM System products folder including pricelist |

The Cross-Assembler was used at MOS Technology to create the very first 6502 code, like the KIM-1 ROMs or the TIM ROM (MCS6530-004).
Cross Assembler
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Cross assembler Manual, GE timeshare |
KIMath package
See also the KIM-5 page for KIMath provided as 6540 ROM for the KIM-5 ROM baord.
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KIMATH and MATHPAC KIMATH is a floating point package, 16 digit precision for the KIM-1 6502 system. Original MOS Technology listings, binary, documents in PDF and text format, sources. MATHPAC is a supplement by John Eaton, Dr Dobbs nr 20, to aid in using KIMATH. Original article in PDF and text format with sources and binaries. |
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MOS KIMath Subroutines Programming Manual |

See also:
PicoSYM, a SYM-1 emulator on a Raspberry Pico
Emulation of a Synertek Sym-1 on a Raspberry Pi Pico 1 (W).
By andysa on the emulation forum on 6502.org
Here is t...
Amazing it works!
After publishing the photos of the transistors used in the KIM-1 a discussion started on forum64.de in the 'Instandsetzu...
Transistors in the KIM-1
Even a microprocessor based computer as the KIM-1 required some simple transistors.
To drive the LEDs some extra curren...







