GRT¶
step¶
As explained in Step by step execution, GHDL allows executing simulations step by step when wrapped in a foreign language. This is a minimal showcase.
The testbench in this example is a single process that prints a message 10 times, every 10 ns
; then it waits indefinitely.
The wrapper uses a do {} while
loop for printing the return code of each step. If/when the return code is >2
, the
simulation is either finished or stopped, so the program exits.