Non-synthesizable signal deposition

For testbench code or other non-synthesizable code, you can use put or inject on any Logic to deposit a value on the signal. The two functions have similar behavior, but inject is shorthand for calling put inside of Simulator.injectAction, which allows the deposited change to propogate within the same Simulator tick. Generally, you will want to use inject for testbench interaction with a design if it has any sequential elements.

var a = Logic(), b = Logic(width:4);

// you can put an int directly on a signal
a.put(0);
b.inject(0xf);

// you can also put a `LogicValue` onto a signal
a.inject(LogicValue.x);

Note: changing a value directly with put() will propogate the value, but it will not trigger flip-flop edge detection or cosim interaction.