Abort circuitry for microprocessor

Details Abort circuitry for microprocessor Abort circuitry for microprocessor

1990-01-17

1992-03-17

Lee, Thomas C.

Boots, shoes, and leggings

371 13, 371 211, 371 151, 36496412, 3642318, 3642421, 364DIG1, G06F 1110

Patent

active

050974130

ABSTRACT:
An abort circuit for a microprocessor includes a circuit receiving and latching an external abort signal to produce an internal abort signal, and circuitry responsive to the internal abort signal for preventing register transfer circuitry from responding to register transfer signals during execution of a current instruction that would otherwise result in modifying information in internal non-addressable programmable registers during duration of the internal abort signal, and abort reset circuity for responding to a reset signal to cause the abort input circuitry to stop producing the internal abort signal at the end of the abort condition.

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patent: 4593391 (1986-06-01), Migushima et al.
patent: 4602327 (1986-07-01), Laviolette et al.
patent: 4641305 (1987-02-01), Joyce et al.
patent: 4667285 (1987-03-01), Suznier et al.

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