I'm working on a installation which consists of one computer with three matrix printers connected to it (parallel port extension cards). See how it will work at http://www.mohr-i.nl/~marco/4kleuranni!.html
I know how I can peek and poke to the three different memory adresses.
DEF SEG &h0040
LPT1% = (peek(&h0009) * 256) + peek(&h0008)
LPT2% = (peek(&h000B) * 256) + peek(&h000A)
LPT3% = (peek(&h000D) * 256) + peek(&h000C)
(thanks to ben lunt)
But I don't know how to sent text data to the three different printers.
Does annybody have some clues?