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MAKVFU is a program which produces a binary VFU image for loading into
an LP05-V or LP05-W line printer. The VFU image describes a maximum of
12 channels (numbered from 1 to 12) and 143 lines (numbered from 1 to
143). A channel represents a collection of punched holes in the
convential carriage tape style line printer. The user of MAKVFU types
in the specification of each channel by describing the line or lines of
the page on which the channel will stop. Also, the user specifies the
logical and physical dimensions of the printable page. The commands
PAGE-SIZE This command specifies the logical size of the printable
page. Typically a 66 line page will have 60 printable
lines and 6 lines of margin at the forms break.
EXAMPLE: PAGE-SIZE 60
LENGTH This command specifies the physical size of the page.
The default is 66 lines. This parameter along with the
logical page size determines the size of the forms break
EXAMPLE: LENGTH 66
FORMS-BREAK This command specifies the channel or channels which
will stop on the lines in the forms break margin. This
margin is the area around the forms break perforation
which is left blank during printing.
EXAMPLE: FORMS-BREAK 5
specifies that channel 5 will stop at each line in the
forms break margin area. Typically this is a space of
one inch around the forms break.
MARK This command directs MAKVFU to set any unspecified
channel to stop at all lines. This command is
equivalent to "CHANNEL n ALL" for each unspecified
channel. This command has no arguments.
CHANNEL This is the fundamental command of MAKVFU and it
specifies the action of an individual channel. If a
given channel is specified in more than one channel
command, the specifications will be Or'ed together. The
allowable actions are:
ALL Stop at each line
EVERY Stop at any line which is an integral multiple of the
EXAMPLE: CHANNEL 1 EVERY 20
Specifies that channel 1 stops at each line,
beginning with line 1, which is an integral
multiple of 20.
LINES Stop at each line given in the argument list.
EXAMPLE: CHANNEL 1 LINES 1 3 10 30
Specifies that channel 1 stops at lines 1,3,10,
TOP-OF-FORM Specifies that the given channel stops at the
logical top of form.
BOTTOM-OF-FORM SPecifies that the given channel stops at the
logical bottom of form.
INFORMATION Types out a brief summary of the current VFU definition.
This command displays the salient definitions made so
far rather than a complete description of the VFU.
LENGTH 66 CHANNELS ASSIGNED 1 2 3 4
EXIT Return to the Command Language
OUTPUT Write the VFU into the specified file. No default file
specification is provided, the user must type in the
complete name of the file.
An example of the normal VFU is given in the DOC file for MAKVFU.
[End of MAKVFU.HLP]