Patent · US Expired

In-circuit emulator

US5132971A · kind A · utility

41Cited by
3References
13Claims
0Family size

Assignees

Inventors

Key dates

Filing dateFeb 3, 1988
Grant dateJul 21, 1992
Priority date
Expiry dateFeb 3, 2008

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F11/261
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

An in-circuit emulator is inserted in a CPU socket of a target system that uses a program designed to use virtual addresses. The in-circuit emulator includes a first emulation processor for emulating execution of the program of the target system, a second emulation processor having the same arrangement as that of the first emulation processor, for outputting a virtual address corresponding to a physical address output from the first emulation processor, and a means for outputting a break request signal when a virtual address at a desired breakpoint in the program and the output virtual address do not coincide with each other.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.