Boots – shoes – and leggings
Patent
1991-04-11
1992-11-10
Kriess, Kevin A.
Boots, shoes, and leggings
364DIG1, 3642428, 3642426, 3642421, 3642412, 3642414, 3642416, G06F 1324
Patent
active
051631520
ABSTRACT:
An interrupt control apparatus of a microprocessor comprises a controller for selecting an interrupt requirement having a highest priority from a plurality of interrupt requirements and outputting the signals indicative of this highest priority; a comparator for comparing the priority of the interrupt requirement selected by the interrupt controller with mask information indicating a priority as to whether the interrupt requirement is executed or not; a detector for detecting whether the priority of the interrupt requirement is outputted from the controller or not; and a judging device for stopping an output of the controller when the priority of the selected interrupt requirement is lower than the priority of the mask information. The judging device makes the controller further select an interrupt requirement having a highest priority from the plurality of interrupt requirements by the controller and output a signal indicative of this priority when the detector detects the stoppage of the output of the controller. The judging device instructs the execution of the selected interrupt requirement when the priority of the selected interrupt requirement is higher than or equal to the priority of the mask information.
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MC68020 32-Bit Microprocessor User's Manual, Motorola Inc., 1984, pp. 5-26-5-31.
Kabushiki Kaisha Toshiba
Kriess Kevin A.
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