sample :
A sample-and-hold function for xreal-typed signals.

The sample primitive models a sample-and-hold function, which samples the value of the input signal in at the trigger event of the input trig and holds the value until the next trigger event.

The parameter trig_mode defines whether the primitive is triggered by the positive edge (1), negative edge (-1), or both edges (0) of the input trig (default: 1). The parameter init_value defines the initial output value before the first trigger event occurs.

Input/Output Terminals

Name	I/O	Type	Description
out	output	xreal	output signal
in	input	xreal	input signal
trig	input	xbit	trigger signal

Parameters

Name	Type	Default	Unit	Description
init_value	real	`NaN	None	initial output value
trig_mode	int	1	None	triggering mode