(or a real Apple ][ if you have one and are able to transfer data to it)

(or a real Apple ][ if you have one and are able to transfer data to it)
The program looks for a text file named "DAY5TEXT" for input. There are some
differences between this file and the raw puzzle input:
* The high bit for each character must be set (`ascii | 0x80`)
* The line separator is byte 0x8d (`'\r' | 0x80`)