Dumped from a Commodore PET2001-N32
0x9000 - BASIC_AID.bin
0xA000 - Mohjana/1 Monitor + manual
Dumped from an Ithaca Audio Z80 S-100 card:
(Labelled PERCOM - modified from code found in docs for a Percom CI-812 Cassette/Terminal card )
ithaca_audio_1010_percom.bin