What does HCF mean in Assembly?

This page is about the meanings of the acronym/abbreviation/shorthand HCF in the Computing field in general and in the Assembly terminology in particular.

Halt and Catch Fire

Computing » Assembly

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Definition

What does HCF mean?

HCF
Mnemonic for ‘Halt and Catch Fire’, any of several undocumented and semi-mythical machine instructions with destructive side-effects, supposedly included for test purposes on several well-known architectures going as far back as the IBM 360. The MC6800 microprocessor was the first for which an HCF opcode became widely known. This instruction caused the processor to toggle a subset of the bus lines as rapidly as it could; in some configurations this could actually cause lines to burn up. Compare killer poke.

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"HCF." Abbreviations.com. STANDS4 LLC, 2019. Web. 22 Jul 2019. <https://www.abbreviations.com/term/71245>.

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