DVIDD is a program to display the contents of a DVI file (the output of TeX)
on a DataDisc screen.  To run the program, say

	.r dvidd;filename

where "filename" is the name of your DVI file (extension ".DVI" is optional).
While running the program, you may use the following commands (where "n" is
any string of digits):

	<form>	Go forward (about 3/4 of a screenful)
	#<form> Go forward # windowfuls
	0<form> Go forward 1/2 window
	α<form> Go forward, changing pages if necessary
	<vt>	Go back
	#<vt>	Go back # windowfuls
	0<vt>	Go back 1/2 window
	α<vt>	Go back, changing pages if necessary
	←	Move text left
	→	Move text right
	E	Exit from the program
	P	Go to the next page
	+P	Go to the next page
	-P	Go to the previous page
	#P	Go to page #
	+#P	Go forward # pages
	-#P	Go back # pages
	V	Refresh display
	βV	Clear and refresh display
	ALT	Abort partially typed command
	?	Display list of commands

<Control> and <meta> are optional, except where shown as α and β.

DVIDD reads fonts in the "PXL" format output by METAFONT.  This currently only
includes Computer Modern fonts.  The default area for font files is [PXL,SYS].

Currently a full set of CM fonts at magnification 1.5 exists.  Some of the new
CM fonts (the "AM" fonts) exist also, at the same magnification.  If your
document uses another magnification, the program will show it at magnification
1.5 anyway.  If this causes the pages to be too wide for the screen, use the ←
and → commands to move around and see everything.