Vhdl code

The simulator will schedule the process or called it event in simulator to run those to run at simulation time X. They are meant to be run concurrently in the hardware. However if you think of it, microprocess can only run one instruction for a time. So it depends on the simulators. Simulator Z may run proceses A first while simulator Y run process B first if you look from the CPU point of view. But from the simulation point of view, these proceses will be scheduled to be run at the same simulation time X. This is my understand. Hope it is clear. :)