debug 'b' ; write 'b' to serial port
;----------------------------------------------------------------------------
-; initialise buffers (for BSR5, for nmra from-serial/to-track buffers)
+; initialise buffers (for bank 5, for nmra from-serial/to-track buffers)
mov_lw bufferpage
- mov_wfa BSR ; set BSR to point to buffer page
clr_fa nmractrl ; for bits relevant to control of nmra stream
clr_fa fromserial ; for loc'n of write-from-usart ptr in buffers