clear
power on
regs
# Normal condition ------------
memset 0072 55
op a4 72
# Should be: IY=55
test iy = 55
# Zero condition ------------
power on
memset 0072 00
op a4 72
# Should be: IY=0, Z=1
test iy = 0
test z = 1
# Negative condition ------------
power on
memset 0072 f2
op a4 72
# Should be: IY=F2, S=1
test iy = f2
test s = 1
save verify_A4.txt