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SYSTEM.
0BJECl'S
STRUClURES
A-
3.
PROCF.5SOR
CBJECTS
An
432
Interface
Processor
consists
of
two
cxx:>perating
processing
elements: a mapping
facility
and a
function
request
facility.
The
mapping
facility
translates
Peripheral
Subsystem addresses
into
432
system
addresses.
The
function
request
facility
executes
the
operator
set
described
in
Appendix
B.
The
mapping
facility
and
the
function
request
facility
can run
in
parallel.
A
processor
object
is
represented
by
a
processor
access
segment, an
associated
processor
data
segment.
Processor
Access Segments
Processor access segments
are
organized
as
shown
below.
A-7