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Integrated circuit with embedded emulator and emulation system for use with such an integrated circuit

  • US 6,289,300 B1
  • Filed: 02/06/1998
  • Issued: 09/11/2001
  • Est. Priority Date: 02/06/1998
  • Status: Expired due to Term
First Claim
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1. A data processor including an emulation controller for causing the data processor to enter an emulation mode, and dedicated registers for use in the emulation mode wherein the emulation controller is responsive to an emulation instruction placed into a user program for causing the data processor to enter emulation mode, and wherein said emulation instruction replaces a pre-existing instruction and the instruction replaced by the emulation instruction is held in a dedicated register such that it can be executed upon return from the emulation mode.

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