84PCE:Ports:003D

Synopsis

Port Number: 003D-003E

Function: Memory Protection Range

003D (read-only)

bit 0: This is set if the stack protector is written to.

bit 1: This is set if protected memory or any port is written to.

bits 2-7: Unknown

003E (write-only)

Write a 1 to a bit to clear it in port 3D.