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