MPE/iX Intrinsics Reference Manual (32650-90875)

148 Chapter5
Command Definitions (FCONTROL - FLOCK)
FDEVICECONTROL
1 = Continuation of previous record
parm2 (8:8) Form set identifier; integer from 0 to 31
If attempting to download a form set having the same identifier as one
existing in the printer, then the Hewlett-Packard 268x purges the existing
form set and repacks the user area before loading the new form. However,
before the modification of the user area, the Hewlett-Packard 268x prints
all data currently in its buffer, as it does whenever you load, overlay, or
delete a character set, form, or vertical format control set (VFC).
136/I16V Download logical page table:
parm1 Not used
parm2 (0:1) 0 = First record of a load
1 = Continuation of previous record
A logical page is a page of data that may take up an entire sheet of paper.
It is possible to print up to eight logical pages on one physical page. The
logical page table, 513 words long, contains some of the information
needed to print up to 32 logical pages, so that the set of up to eight logical
pages printed on any one physical page can be varied.
137/I16V Download multicopy form overlay table:
parm1 Not used
parm2 Not used
Prints up to eight copies of a page, each on one or two different forms.
FDEVICECONTROL downloads into the printer's memory a table containing
one word of information for each of the eight possible copies to be overlaid
with a form. The format of each word of the table is:
Bit (0:1) 0 = Ignored
1 = Overlay form1 on physical page
Bit (1:1) 0 = Ignored
1 = Overlay form2 on physical page
Bits (2:4) Reserved for the operating system
Bits (6:5) Form1 identifier; integer from 0 to 31
Bits (11:5) Form2 identifier; integer from 0 to 31
138/I16V Download/delete vertical format control (VFC);
parm1 (0:1) 0 = Load VFC
1 = Delete VFC
parm2 (0:1) 0 = First record of a load
1 = Logical continuation of the previous record
parm2 (8:8) VFC set identifier; integer from 0 to 31