PLEASE don’t use it for instance, it’s disabled in the current version of Orix
Send a byte to RS232
; for information, if buffer is full, (when you send many A and the
; remote machine does not accept the bytes, the telestrat crashes).
; For instance, there is no way to detect if the buffer is full
; anyway, we can enlarge the buffer size.
lda #'A' ; send A