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From: apratt@atari.UUCP (Allan Pratt)
Newsgroups: comp.sys.atari.st.tech
Subject: Re: catch SLM DMA-calls --- How?
Keywords: emulate SLM laserprinter via printerport
Message-ID: <2835@atari.UUCP>
Date: 13 Feb 91 21:23:53 GMT
References: <4832@ruuinf.cs.ruu.nl>
Organization: Atari Corp., Sunnyvale CA
Lines: 17

nico@cs.ruu.nl (Nico Verwer) writes:
>about all [the SLM804] can do is print bitmaps, which are built in memory.

That's right.  But the WAY it prints bitmaps, and the way they are built,
and the way they get sent via DMA to the printer, are all pretty strange.

One thing you can do is have your program (whatever it is) write a page
image to memory, then use the DIAB630 software to send that page to the
printer.  There are escape codes which say, "Hey, printer driver! There's a
page image at location X in memory - print it!"

So if you can get a bitmap to appear in memory someplace, you can point
DIAB630 at it and it'll be printed.

============================================
Opinions expressed above do not necessarily	-- Allan Pratt, Atari Corp.
reflect those of Atari Corp. or anyone else.	  ...ames!atari!apratt