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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
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+.TH DVIBIT 1
+.SH NAME
+dvibit \- display dvi file on bitgraph
+.SH SYNOPSIS
+.B dvibit
+[
+.B \-p
+] [
+.B \-l
+] [ \+n
+] dvifile[.dvi]
+.SH DESCRIPTION
+The
+.I dvibit
+program displays a
+.I .dvi
+file on a version 3.10 BBN BitGraph terminal.
+.PP
+The program may be run interactively on a BitGraph terminal,
+or on any terminal if the standard output is redirected.
+If the program is run interactively, after each page of the
+output is displayed the program will wait for a response from
+the user. Type
+.B u
+,
+.B d
+,
+.B l
+,
+.B r
+to move the displayed
+page of the document up, down, left or right. This provides a facility to
+examine the entire page if the page is larger than the screen.
+A
+.B p
+will display
+the previous page. <RETURN> goes to the next page. When a new page is
+displayed the top left corner of the page will be displayed in the top
+left corner of the screen.
+Multiple pages may be skipped forwards or backwards by entering
+.B \+n <RETURN>
+or
+.B \-n <RETURN>
+to skip n pages. The program will not skip past the begining or the end
+of the document. Prior to display of the first page in the
+document several pages may be skipped by including a
+.B \+n
+option on the command line. This will cause n pages to be skipped
+prior to displaying the first page on the screen.
+Typing the EOF or interrupt key will cause
+the program to exit.
+.PP
+When standard output is redirected the program will process
+the entire document without waiting for the <RETURN> key to
+be typed.
+.PP
+After the document is processed a list of errors is printed
+on standard error. This error listing is also saved in
+the file dvifile.loh. The creation of the log file may be prevented
+by using the
+.B \-l
+option when invoking the program.
+.PP
+This is a `bare bones' DVI-to-BitGraph program. Minimal error checking
+is done. For more complete error checking
+.IR dvitype(1)
+should be run.
+.PP
+Ocasionally there may be insufficent memory to hold the information about
+all of the fonts in the system. Portions of the document may be previewed
+by including the
+.B \-p
+option on the command line. This will prevent the preloading of all fonts
+into the system and instead use demand loading of the font tables.
+.SH FILES
+.TP 2.5i
+*.dvi
+TeX DeVice Independent output file
+.TP
+/usr/lib/tex/fonts/*.*pxl
+TeX default font rasters
+.br
+.SH "SEE ALSO"
+dvitype(1),
+tex(1)
+.SH BUGS
+When using fonts with decent resolution only part of a page appears
+on the screen.
+.PP
+For unexplained reasons, dvibit logs you out when it encounters a request
+for a non-existant PXL file.
+.SH AUTHOR
+Mark Senn wrote the early versions of this program.
+Stephan Bechtolsheim, Bob Brown, Richard Furuta, James Schaad
+and Robert Wells improved it.