Int 14/AH=0Ah

AH = 0Ah
DX = port number (00h-03h) (04h-43h for XAPCM232.SYS)

Return:
AX = number of characters available in buffer

Note: This function is also supported by the PC-MOS/386 v5.01 $serial.sys

See Also: AH=09h"Digiboard" - AH=0Dh"Digiboard"

Category: Serial I/O - Int 14h - D