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51-FORTH is an implementation of the Forth programming language for the Intel 8051 microcontroller. It was created in 1989 by Scott Gehmlich of IDACOM Electronics (which was acquired by Hewlett-Packard in 1990), and sent to Giovanni Moretti of Massey University, from whom it was propagated widely. The original 51forth.zip package is available from many archive sites, along with several other implementations of Forth.

This implementation is subroutine-threaded , with about 20 words written in assembly language, and the complete system occupying a total of about 8K of RAM. It was cross-developed from a VAX to an RTX2000 Forth system connected to dual-ported RAM accessible to the microcontroller.

The sources and documentation are in the public domain.

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Forth dialects

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Topics: 51-FORTH, 510s, 51 FORTH, 510, 511, 519, 512, 513, 514, 515...

510sCenturies: 5th century 6th century 7th century Decades: 460s 470s 480s 490s 500s 510s 520s 530s 540s 550s 560s Years: 510 511 512 513 514 515 516 517 518 519 520 Events and Trends 510s.	51Alternate uses, see Number 51 Centuries: 1st century BC 1st century 2nd century Decades: 0s 10s 20s 30s 40s 50s 60s 70s 80s 90s 100s Years: 46 47 48 49 50 51 52 53 54 55 56 Events Caratacus, British resistance leader, is captured and taken to Rome. Claudi	51-FORTH51-FORTH is an implementation of the Forth programming language for the Intel 8051 microcontroller. It was created in 1989 by Scott Gehmlich of IDACOM Electronics (which was acquired by Hewlett-Packard in 1990), and sent to Giovanni Moretti of Massey Univ
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