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Thread-full API

In SpinalSim, you can write your testbench by using multiple threads in a similar way to SystemVerilog, and a bit like VHDL/Verilog process/always blocks. This allows you to write concurrent tasks and control the simulation time using a fluent API.

Fork and join simulation threads

// Create a new thread
val myNewThread = fork {
  // New simulation thread body
}

// Wait until `myNewThread` is execution is done.
myNewThread.join()

Sleep and waitUntil

// Sleep 1000 units of time
sleep(1000)

// waitUntil the dut.io.a value is bigger than 42 before continuing
waitUntil(dut.io.a > 42)