LEVERAGING A PERIPHERAL DEVICE TO EXECUTE A MACHINE INSTRUCTION

摘要

A method includes executing microcode in a processing unit of a processor to implement a machine instruction, wherein the microcode is to manipulate the processing unit to access a peripheral device on a public communication bus at a private address not visible to other devices on the public communication bus and not specified in the machine instruction. A processor includes a public communication bus, a peripheral device coupled to the public communication bus, and a processing unit. The processing unit is to execute microcode to implement a machine instruction. The microcode is to manipulate the processing unit to access a peripheral device on a public communication bus at a private address not visible to other devices on the public communication bus and not specified in the machine instruction.

主权项

1. A method, comprising:
executing microcode in a processing unit of a processor to implement a machine instruction, wherein the microcode is to manipulate the processing unit to access a peripheral device on a public communication bus at a private address not visible to other devices on the public communication bus and not specified in the machine instruction.