(CPU) What happens when a read/write access is executed when the data pointer specifies an area that is not assigned to RAM?
If a write access is executed when the data pointer specifies a non-RAM area, the value of the RAM will not change. However, if a read access is executed, the value of register A will be undefined. Note that operations executed by a result of read/write (exclusive or operation by register X, register Y operation, and the resulting skip process) will be performed. (#105010)