[lcdproc] Split screen support (hd44780 40x4 ) working

[McMeikan, Andrew]

Ok folks,
	it works! grab it from
http://members.xoom.com/andrewmuck/hd44780-am.c this code will work as a
drop in replacement for a standard hd44780.c To enable two screens at once
connect your extra 'E' line to pin 9 of your parallel port and uncomment the
line near the start of the code that says

//#define SPLIT_SCREENS

so it reads

#define SPLIT_SCREENS

I also had a request for making a 40x2 display to look like a 20x4
displaying the bottom two lines to the right of the first 20x2.  Initially I
thought this was a good idea to put in the code as well, but it is probably
better off as an option higher up so it can be common to other drivers as
well.

I can do it as a seperate 44780 version if its really wanted, but I think it
would be cleaner in the parent code.

Thoughts anyone??

	Enjoy,	Andrew...

PS:all code critisisims listened to.


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