Method and apparatus for using extracted program flow informatio

Details Method and apparatus for using extracted program flow informatio Method and apparatus for using extracted program flow informatio

1988-10-03

1991-09-17

Lee, Thomas C.

Boots, shoes, and leggings

3642624, 3642631, 3642613, 3642617, G06Z 938, G06Z 930

Patent

active

050500686

ABSTRACT:
A prefetching replicated instruction stream machine (PRISM) computer architecture which provides sustained instruction stream performance comparable to peak performance in computer systems with instruction pipelines operates by partitioning, prior to execution, a computer program to be executed into instruction segments based on entry point and branch target instructions defining the flow changes within the program; storing selected segments in a plurality of instruction decoding units (IDUs) such that all instructions that potentially could be needed when the next instruction is executed by a central processing unit (CPU) are stored in the IDUs, and such that no single IDU contains both a segment having a branch taken instruction and a segment containing a branch not taken instruction for the same branch instruction; simultaneously decoding in a predetermined order the instruction segments stored in each IDU; and selectively communicating instructions decoded by the IDUs to the CPU in response to the value of a program instruction counter value identifying the instruction to be executed by the CPU.

REFERENCES:
patent: 3771141 (1973-11-01), Culler
patent: 3787673 (1974-01-01), Watson et al.
patent: 3940741 (1976-02-01), Horikoshi et al.
patent: 4078254 (1978-03-01), Beausoleil et al.
patent: 4144566 (1979-03-01), Timsit
patent: 4200927 (1980-04-01), Hughes et al.
patent: 4439827 (1984-03-01), Wilkes
patent: 4456958 (1984-06-01), DeSantis et al.
patent: 4466061 (1984-08-01), DeSantis et al.
patent: 4467414 (1984-08-01), Akagi et al.
patent: 4720778 (1988-01-01), Reynard et al.
patent: 4742451 (1988-05-01), Bruckert et al.
patent: 4825360 (1989-04-01), Knight, Jr.
patent: 4833599 (1989-05-01), Colwell et al.
patent: 4847755 (1989-07-01), Morrison et al.

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