CCJ111UNICATI0NS SECTION 6.7
6.7.6.5.8 Space Compression flag - (Memory location F85B or 63579)
6.7.6.5.9
VER.V09F
This single byte flag controls the operation of space
compression. If the byte is set non-zero, any string of more
than 2 spaces is compressed into an IGS character and a space
count code on transmission. The reverse happens on receive
(i.e. the codes are expanded to the string of spaces). If the
byte is set to zero (its default state) spaces are not
compressed on transmission or expanded on receive.
This feature is not normally used in 2780 installations. It can
be used to give increased throughput on a line where there are
many spaces.
Addresses of RAM Locations
Name Location Location Default
Description
(Hex) (Decimal) Value
RECLEN
F853 63571
80 Record length
BUFLEN
F854
63572
200
fuffer length
SRFLG
F856 63574
0 Single record flag
RPFLG
F857
63575
0
Record padding
EMFLG F858
63576
0
Mode flag
STXFLG
F859
63577
0
STX flag
RETRYS
F85A
63578
0 Retry flag
SCFLG F85B
63579
0
Space compression flag
NOTE: These flags are preserved during power off and so will
remain at their previous setting after subsequent power on.
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