Simulator free from interference of resetting in monitor mode

Abstract

The invention discloses a simulator free from the interference of resetting in a monitor mode. The simulator comprises a simulation chip, a monitoring module, a user program memory, a monitor program memory, an external resetting signal source and an integrated development environment module on a user computer, wherein the simulation chip comprises a processor core, a resetting control module and an internal resetting signal source; when the resetting control module outputs an effective resetting signal to the processor core, the processor core is in a reset state; when the resetting control module outputs an ineffective resetting signal, the processor core works normally; and in the monitor state, the monitoring module outputs an effective control signal to the resetting control module, and the resetting control module outputs an ineffective resetting signal to the processor core no matter whether the resetting control module receives the effective or ineffective external resetting signal or the effective or ineffective internal resetting signal. According to the simulator, not only can the working states of a processor chip of a product during various kinds of resetting be truly simulated in an operation mode, but also the abnormal influence of various kinds of resetting on the work of the simulator can be shielded in the monitor mode.

Description

technical field [0001] The invention relates to a processor chip emulator, in particular to an emulator free from reset interference in a monitoring mode. Background technique [0002] There is a user program developed by the user in the processor chip. In the writing and debugging of the user program, the tool used is generally a processor chip emulator. The emulator can simulate the process of the product processor chip executing the user program, and can also stop executing the user program when the user needs it, and take out or fill the chip registers, memory and other data information that the user cares about. In the existing emulator, when the analog product processor chip is working, the emulation chip in the emulator reads and executes the user program, and the emulator and the emulation chip in it are in the running mode at this time; when it is necessary to take out or fill in the chip data information, the emulator The chip reads or writes data such as chip reg...

AI Technical Summary

Problems solved by technology

However, when the existing emulator is in the monitoring mode and the emulator chip needs to execute the monitoring program provided by the emulator to take out or fill in the chip data information, if any kind of reset (external reset, internal abnormal state reset, etc.) It can still be responded by the emulation chip, and the emulation chip will reset, causing interference or damage to the execution monitoring program of the emulation chip

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