Back to results
US 6,212,626 B1Granted
Computer processor having a checker
AssigneeIntel Corporation
InventorsAmit A. Merchant, David J. Sager
Life of this patent
Estimating the term…
Abstract
A computer processor that has a checker for receiving an instruction. The checker includes a scoreboard, an input for receiving an external replay signal, and decision logic coupled to the scoreboard and the input. The decision logic determines whether the instruction executed correctly based on both the scoreboard and the external replay signal.
Claims25
A computer processor comprising:
- a checker for receiving an instruction, said checker comprising:
- a scoreboard;
- an input for receiving an external replay signal;
- and
- decision logic coupled to said scoreboard and said input;
- wherein said decision logic determines whether the instruction executed correctly based on both said scoreboard and said external replay signal.
3 more elements
A method of checking a computer instruction having at least one source, said method comprising:
- (a) determining if the source is ready by reading a status of a scoreboard;
- (b) determining if an external replay condition is false;
- (c) replaying the instruction if the source is not ready or the external replay condition is not false;
- and
- (d) dispatching the instruction to retirement if the source is ready and the external replay condition is false.
2 more elements
A system for checking a computer instruction having at least one source, said system comprising:
- means for determining if the source is ready;
- means for determining if an external replay condition is false;
- means for replaying the instruction if the source is not ready or the external replay condition is not false;
- and
- means for dispatching the instruction to retirement if the source is ready and the external replay condition is false.
2 more elements
A computer system comprising:
- a bus;
- a memory device coupled to said bus;
- and
- a processor that executes a computer instruction, said processor comprising:
- a scoreboard;
- input for receiving an external replay signal;
- and
- decision logic coupled to said scoreboard and said input;
- wherein said decision logic determines whether the instruction executed correctly based on both said scoreboard and said external replay signal.
6 more elements
Dependencies are inferred from the claim text.