SIM: an 8051 simulator

This article describes how to use SIM, a power-packed program that simulates an 8051 microcontroller on an IBM PC, providing a perfect complement to the 805118032assembler course which so many of you have followed with great interest. The reasons for using a simulator are given, followed bya brief description of SIM's facilities. A short program is used to demonstrate how to use the simulator, with commentary on how each feature is used for program development and debugging. Finally, a typical program bug is demonstrated.