gSim51 is a powerful, efficient and cool simulator for 8051 code. Its has a text based interface and very efficient commands keeping in line with the unix tradition of short and concise commands that do one thing well. gSim51 has no code or data space lim
PHP Profiler is both a Zend extension and module capable of generating profiling information (function call statistics) for PHP applications on the server side. No PHP code has to be changed, although the profiler data is available to your scripts.