Data processor having different interrupt processing modes

Details Data processor having different interrupt processing modes Data processor having different interrupt processing modes

1987-11-09

1990-05-29

Heckler, Thomas M.

Boots, shoes, and leggings

3642302, 3642808, 364941, G06F 1300

Patent

active

049300687

ABSTRACT:
A data processor comprises an interrupt processing request controller receiving processing requests from peripheral devices for generating an interrupt request. An execution unit has a first mode of executing the interrupt processing in accordance with a user's program and a second mode of executing the interrupt processing in accordance with a microprogram while maintaining an internal condition concerning execution of a program. The controller operates to selectively inhibit the execution of the interrupt processing in the first mode, but to basically allow the execution of the interrupt processing in the second mode.

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patent: 4484271 (1984-11-01), Miu et al.
patent: 4646578 (1987-04-01), Chilinski et al.

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