Boots – shoes – and leggings
Patent
1989-02-03
1991-01-15
Lee, Thomas C.
Boots, shoes, and leggings
3642318, 3642563, 3642653, 3642656, G06F 938, G06F 1130, G06F 1210
Patent
active
049858254
ABSTRACT:
A technique for processing memory access exceptions along with pre-fetched instructions in a pipelined instruction processing computer system is based upon the concept of pipelining exception information along with other parts of the instruction being executed. In response to the detection of access exceptions at a pipeline stage, corresponding fault information is generated and transferred along the pipeline. The fault information is acted upon only when the instruction reaches the execution stage of the pipeline. Each stage of the instruction pipeline is ported into the front end of a memory unit adapted to perform the virtual-to-physical address translation; each port being provided with storage for virtual addresses accompanying an instruction as well as storage for corresponding fault information. When a memory access exception is encountered at the front end of the memory unit, the fault information generated therefrom is loaded into the storage and the port is prevented from accepting further references.
REFERENCES:
patent: 3949379 (1976-04-01), Ball
patent: 4476525 (1984-10-01), Ishii
patent: 4500959 (1985-02-01), Kubo et al.
patent: 4656578 (1987-04-01), Chilinsky et al.
patent: 4710866 (1987-12-01), Zolnowsky et al.
patent: 4757445 (1988-07-01), Zolnowsky et al.
patent: 4875160 (1989-10-01), Brown, III
Fossum et al., "An Overview of the VAX 8600 System," Digital Technical Journal, No. 1, Aug. 1985, pp. 8-23.
Troiani et al., "The VAX 8600 I Box, A Pipelined Implementation of the VAX Architecture," Digital Technical Journal, No. 1, Aug. 1985, pp. 24-42.
Bruckert et al., "Designing Reliability into the VAX 8600 System," Digital Technical Journal, No. 1, Aug. 1985, pp. 71-77.
Firstenberg Mark A.
Fite David B.
Fossum Tryggve
Hetherington Ricky C.
Manley Dwight P.
Digital Equipment Corporation
Lee Thomas C.
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