clear
power on
regs

op a2 55

# IX should now be set to 55
test ix = 55

op ca

# IX should now be set to 54
test ix = 54

# Wrap and negative case --------------
power on

op a2 00

# IX should now be set to 00
test ix = 0

op ca

# Should be: IX=FF, S=1
test ix = ff
test s = 1

# Zero case ----------------------------
power on

op a2 01

# Should be: IX=01, Z=0
test ix = 1
test z = 0

op ca

# Should be: IX=00, Z=1
test ix = 0
test z = 1

save verify_CA.txt
