DEF SEG and Lprinting multible printers.

marcotheu

Hi,

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)
DEF SEG
(thanks to ben lunt)
But I don't know how to sent text data to the three different printers.
Does annybody have some clues?

Regards

Marco
Marco@mfa.mohr-i.nl
http://www.mohr-i.nl/~marco/index.htm

mstechca

: Hi,
:
: 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)
: DEF SEG
: (thanks to ben lunt)
: But I don't know how to sent text data to the three different printers.
: Does annybody have some clues?
:
: Regards
:
: Marco
: Marco@mfa.mohr-i.nl
: http://www.mohr-i.nl/~marco/index.htm
:

Find the port addresses of 3 printers and use them with OUT statements.

For example, if printer 1 uses a data port 57 hex, printer 2, 58 hex, and printer 3, 59 hex, and each printer is to put on spaces then you would type:

out &H57,32
out &H58,32
out &H59,32

Why 32? because 32 is ascii for space.
email: mstechcae@webcity.ca