Pop-compare micro instruction for repeat string operations

Details Pop-compare micro instruction for repeat string operations Pop-compare micro instruction for repeat string operations

2005-08-16

2005-08-16

Treat, William M. (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

Logic operation instruction processing

C712S202000, C712S205000, C712S241000, C711S218000, C711S219000, C711S132000, C711S214000

Reexamination Certificate

active

06931517

ABSTRACT:
A microprocessor apparatus is provided for performing a pop-compare operation. The microprocessor apparatus includes paired operation translation logic, load logic, and execution logic. The paired operation translation logic receives a macro instruction that prescribes the pop-compare operation, and generates a pop-compare micro instruction. The pop-compare micro instruction directs pipeline stages in a microprocessor to perform the pop-compare operation. The load logic is coupled to the paired operation translation logic. The load logic receives the pop-compare micro instruction, and retrieves a first operand from an address in memory, where the address is specified by contents of a register. The register is prescribed by the pop-compare micro instruction. The execution logic is coupled to the load logic. The execution logic receives the first operand, and compares the first operand to a second operand.

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