This commit backports changes made in the C128 core to the CIA shift register. These changes were necessary to get fast serial IEC working with a real 1571 connected to the userport.
These changes turned out to be the fix for the slowdown reported in issue #162
This commit backports changes made in the C128 core to the CIA shift register. These changes were necessary to get fast serial IEC working with a real 1571 connected to the userport.
These changes turned out to be the fix for the slowdown reported in issue #162