Arithmetic Control
From SnesLab
MCNT is 8 bits in size, located at 2250h on the SA-1. It is initialized to zero.
ACM is bit 1. M/D is bit 0.
MCNT is 8 bits in size, located at 2250h on the SA-1. It is initialized to zero.
ACM is bit 1. M/D is bit 0.