초록 ▼

A multi-level identification apparatus and method for providing at least two types of identification information, including a first type for identifying the origin of a microprocessor and the number of levels of identification information available, and a second type for identifying a family, a mode

A multi-level identification apparatus and method for providing at least two types of identification information, including a first type for identifying the origin of a microprocessor and the number of levels of identification information available, and a second type for identifying a family, a model, a stepping ID, and features of a microprocessor. The apparatus includes a first memory element for storing an indicia string that identifies the origin of the microprocessor. The apparatus also includes a second memory element for storing other microprocessor ID data including data fields for specifically identifying the microprocessor. The apparatus includes control logic for executing an ID instruction that reads the indicia string or the microprocessor ID data, dependent upon a preselected type. Whichever identification information is read, it is stored in one or more general purpose registers for selective reading by a programmer. The method is available at any time while the microprocessor is operating.

대표청구항 ▼

[ What is claimed is:] [1.] A non-inferential method for identifying an origin of a microprocessor, wherein the microprocessor implements the method comprising the steps of:a) reading an indicia of origin from a memory in the microprocessor in response to an ID instruction;b) storing the indicia of

[ What is claimed is:] [1.] A non-inferential method for identifying an origin of a microprocessor, wherein the microprocessor implements the method comprising the steps of:a) reading an indicia of origin from a memory in the microprocessor in response to an ID instruction;b) storing the indicia of origin in a first register in the microprocessor; andc) comparing the indicia of origin in the first register with a predetermined comparison string indicative of the origin of the microprocessor.