[B]
B0
B110
B1200
B134
B150
B1800
B19200
B200
B2400
B300
B38400
B4800
B50
B600
B75
B9600
BADNESS
BBD_ERR
BCD_TO_BIN
BEEP_TIMER
BITS24
BITS53
BITS64
BLANK_TIMER
BLOCK_SIZE
BLOCK_SIZE_BITS
BRKINT
BS0
BS1
BSDLY
BUFFER_END
BUSY_STAT