unit n
voltage 1.2
slope 1000
format hspice

beginfile stimuli_test_ngspice.cir

set A_A 0
set B_A 0
s 1000
set A_A 1
set B_A 0
s 2000
set A_A 1
set B_A 1
s 2000
set A_A 0
set B_A 1
s 2000
set A_A 0
set B_A 0
s 2000
set A_A 0
set B_A 1
s 2000
endfile