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US 2008/0082801 A1Published application
Apparatus and method for tracing instructions with simplified instruction state descriptors
AssigneeMIPS Technologies, Inc.
InventorsErnest L. EDGAR, Radhika Thekkath
Life of this patent
Estimating the term…
Abstract
A method of tracing processor instructions includes characterizing processor state changes in accordance with simplified instruction state descriptors. The simplified instruction state descriptors are then traced with processor instructions, but processor data is not traced.
Claims32
A method of tracing processor instructions, comprising:
- characterizing processor state changes in accordance with simplified instruction state descriptors;
- and
- tracing simplified instruction state descriptors.
A computer readable storage medium storing executable instructions to characterize a circuit, comprising executable instructions to:
- characterize processor state changes in accordance with simplified instruction state descriptors;
- and
- deliver simplified instruction state descriptors.
A processor, comprising:
- circuitry to characterize processor state changes in accordance with simplified instruction state descriptors;
- and
- a port to route simplified instruction state descriptors.
A system, comprising:
- a processor with
- circuitry to characterize processor state changes in accordance with simplified instruction state descriptors, and
- a port to route simplified instruction state descriptors;
- and
- an instruction trace control block to route the simplified instruction state descriptors to a memory.
2 more elements
A probe, comprising:
- a memory;
- an instruction trace control block to write simplified instruction state descriptors to the memory and selectively deliver program counter information with sub-sets of simplified instruction state descriptors.
Dependencies are inferred from the claim text.