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Appendix C Paper Motion Using the EVFU
The four lines of EVFU overlay data (shown in boldface type) follow the two
lines of dynamic data. This overlay data is positioned on the form according to
the specified channel codes called. The superscript hexadecima l numbers
enclosed in < > symbols represent calls to the four unique EVFU channel
codes.
(cc)EXECUTE; formname
[;PAGE
n
] [;
FC
] [;ICNT
n
] [;IRST
n
]
1E 10 11 11 11 1B 13 11 11 12 11 15 11 1F
~AF1;*DYNAMIC DATA #1*
~AF2;*DYNAMIC DATA #2*
<13>DATA FOR LINE 6<17>
<10><12>DATA FOR LINE 9
<1B>DATA FOR VERTICAL TAB CHANNEL
<15>DATA FOR LINE 11
[Form Feed character]
(cc)NORMAL
When the IGP receives a channel call, it searches for that channel from the
current print position in the EVFU load sequence to the end of the EVFU load
sequence. If that channel is found, the current print position moves to th at
position on the page. If the channel is not found, the search continues from
the beginning of the EVFU load sequence to the current print position. If this
search is successful, the current form is printed, the next form is called, an d
the current print position moves to that position on the next page. If the
channel called is not found in either search, the channel call is treated as if it
were a line feed.