Submitted by Steve Fewell
Call routine &BA4A to Check that the next character at BASIC Text Pointer B is '#' (issue 'Missing #' error if not),
set Y to the LSB of the number after the '#' (the file channel number).
Call the Operating system OSBGET routine (&FFD7) to carry out the read next byte from the file open at channel number
Jump to routine &AE18 to set the IWA to the 8-bit value in A (i.e. the byte that was read from the file).
|AAD7||J||032 074 186||20 4A BA||JSR &BA4A Check for '#' (PTR B), Set Y to file channel number (PTR B)|
|AADA||032 215 255||20 D7 FF||JSR &FFD7 OSBGET|
|AADD||128 227||80 E3||BRA -29 --> &AAC2 [JMP &AE18 Set IWA to the 8-bit value in A]|