No specific info about version 2.0. Please visit the main page of SIMLAB-8051 on Software Informer.
It is an ANSI C compiler for 8051 devices from Atmel and Sillicon Labs.
Program to begin studying the 8051 microcontroller.
Full-featured Pascal compiler for 8051 devices.
Provides a unified interface to a series of user-replaceable programs
NoICE for 8051 using a target monitor and the NoICE Serial Protocol.
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