;C KEY -- c get character from keyboard HEADER(XT_USART_RX_POLL,2,"rx",DOCOLON) KEYLOOP: .DW XT_KEYQ .dw XT_DOCONDBRANCH DEST(KEYLOOP) .dw XT_DOLITERAL .dw USART_RX_DATA .dw XT_CFETCH .dw XT_EXIT