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AX = 6F03h CX = size of buffer DX = port number (0-3) ES:DI -> buffer for received characters
Return:
AH = line status (see #00304) ---on error (AH bit 7 set)--- AL = 00h ES:DI -> next byte to be transferred ---if successful--- AL = last byte read ES:DI unchanged CX = number of bytes read
Desc: Read characters into the specified buffer until the buffer is filled or a timeout occurs
Notes: Supported by original HP Vectra AT and by ES/QS/RS series Vectras. Polls the Data Set Ready modem status and Data Ready line status bits to determine when characters are available
See Also: AX=6F00h - AX=6F02h - AX=6F04h
Category: Serial I/O - Int 14h - H
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