Rescheduling conflicting issued instructions by delaying one con

Details Rescheduling conflicting issued instructions by delaying one con Rescheduling conflicting issued instructions by delaying one con

1994-10-18

1996-09-10

Ellis, Richard L.

G06F 938

Patent

active

055553842

ABSTRACT:
Methods and apparatus for optimizing the operation of an instruction pipeline in a computer are disclosed. The methods and apparatus function at both the effective beginning and end of the pipeline. At the pipeline's beginning, a Pipeline Controller monitors the availability of data for various floating point operations. Data is read at either a fast or slow rate, depending on its availability, and instructions are allowed to proceed through the pipeline based on this data availability. At the effective end of the pipeline, the Controller monitors all instructions in the pipeline, notes all potential resource conflicts, and resolves these potential conflicts by either the insertion of an appropriate number of HOLD states or the conclusion that no actual resource competition exists.

REFERENCES:
patent: 4594660 (1986-06-01), Guenthner et al.
patent: 4750154 (1988-06-01), Lefsky et al.
patent: 4760519 (1988-07-01), Papworth et al.
patent: 4789925 (1988-12-01), Lahti
patent: 4814976 (1989-03-01), Hansen et al.
patent: 4858176 (1989-08-01), Wilhite et al.
patent: 4891753 (1990-01-01), Budde et al.
patent: 4903196 (1990-02-01), Pomerene et al.
patent: 5019967 (1991-05-01), Wheeler et al.
patent: 5073855 (1991-12-01), Staplin et al.
patent: 5075844 (1991-12-01), Jardine et al.
patent: 5127093 (1992-06-01), Moore, Jr.
patent: 5133077 (1992-07-01), Karne et al.
patent: 5226126 (1993-07-01), McFarland et al.
Acosta et al., "An Instruction Issuing Approach to Enhancing Performance in Multiple Functional Unit Processors," IEEE Transactions on Computers, vol. C-35, No. 9, Sep. 1986.
Keller, Robert M., "Look-Ahead Processors," Computing Surveys, vol. 7, No. 4, Dec. 1975.
Intel, "iAPX 86/88, 186/188 User's Manual, Hardware Reference," 1985, pp. 1-11 to 1-12.

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