Peer to peer computer-interrupt handling

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Details

364DIG1, 364229, 3642301, 3642327, 364240, 3642412, 3642422, 395741, 395293, G06F 1300

Patent

active

054817242

ABSTRACT:
A coded logical interrupt signal is sent between system or subsystem units in a data processing system. The logical interrupt is sent by a sending unit, that requests the interrupt, and is sent to a receiving unit that the sending unit wishes to interrupt. These coded logical interrupts are accumulated in the receiving unit. When the receiving unit is actually physically interrupted by control of the processor in the unit, all logical interrupts that have been accumulated are processed. The logical interrupt may be coded to indicate sending unit, that is the source of the interrupt, and the action being requested by the sending unit. If the interrupt includes only source information, the action information is sent separately by the sending unit to memory in the receiving unit. If the interrupt includes both source identification and action information, the receiving unit can interpret source and action directly from the interrupt.

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IBM Personal System/2 Hardware Interface Technical Reference Manual, Move Mode Subsection of Subsystem Control Block Architecture Section, pp. 1-16-1-17, 1-29-1-32, 2-5-2-8 Jan. 1991.

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