Boots – shoes – and leggings
Patent
1995-03-17
1998-07-14
Elmore, Reba I.
Boots, shoes, and leggings
364187, 39518209, 39518211, G05B 902
Patent
active
057814333
ABSTRACT:
In a computer system having a coprocessor dedicated to arithmetic operations, one of the coprocessor and CPU is equipped with an abnormality decision section and the other is equipped with a transmission section which transmits to the abnormality decision section signals by which the abnormality decision section is permitted to decide whether abnormality has occurred. In a first arrangement, upon detecting that an instruction transferred from the CPU is abnormal, the coprocessor turns off a flag indicating that it is active. In the CPU, its internal storage state indicates that the coprocessor is active and the flag is received which indicates that the coprocessor is inactive. Thereby, the CPU is permitted to decide that abnormality has occurred. In a second arrangement, upon detecting abnormality, the coprocessor turns off that flag indicating that it is active and turns on a flag indicating that the buffer is full. By receiving this signal state which cannot usually exist, the CPU is permitted to decide that abnormality has occurred.
REFERENCES:
patent: 5142470 (1992-08-01), Bristow et al.
patent: 5185693 (1993-02-01), Loftis et al.
patent: 5249188 (1993-09-01), McDonald
patent: 5416908 (1995-05-01), DiCarlo et al.
Nabeya Kenichi
Nakada Tatsumi
Brown Thomas E.
Elmore Reba I.
Fujitsu Limited
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