Notes
(Cont'd)
Privileged
Instructions
6.
If
an
address
of
the
Block Address Table specified by
the
General
Register
designated by
Rl
is
not
on a full word boundary,
an
Address-
ing
Interrupt
condition occurs. The operation is suppressed
with
the
operands
unchanged.
7.
If
a location outside
the
available memory is addressed,
an
Address-
ing
Error
Interrupt
condition occurs. The operation is
terminated
with
unpredictable results.
8.
The
format
of
the
halfword
in
main
memory
from
which
the
trans-
lation
entry
is copied
is:
WGUSEMXXXPPPPPPH
9.
The
format
of
the
Translation
Table
entry
in
the
translation
memory
is specified
under
the
Translation
Memory description
in
this
manual.
10. The
format
of
the
translation
memory
entry
is specified
under
the
Addressing description in
this
manual.
11.
If
the
block
address
specified in Block Address Table
entry
is
not
on a
halfword
boundary,
an
Addressing
Interrupt
condition occurs. The
operation is
terminated
with
unpredictable results.
12.
If
this
Special
Function
is
attempted
under
any
of
the
following
conditions, a
Paging
Error
Interrupt
condition occurs
and
the
Special
Function
is
terminated
with
unpredictable
results:
a.
If
either
the
address
of
the
Block Address Table
or
the
block
address
in
a Block Address Table
entry
specifies a nonexistent
translation
nlemory element (i.e.,
the
two
unused
bits
of
the
segment field
of
a
virtual
address
are
not
zeros).
b.
If
either
the
address
of
the
Block Address Table
or
the
block
address
in a Block Address Table
entry
specifies a 2,048-byte
page in
the
high-order
address
half
of
a 4,096-byte page.
c.
If
either
the
address
of
the
Block Address Table
or
the
block
address
in
a Block Address Table
entry
specifies a
page
that
is
not
writable.
13.
If
this
Special
Function
is
attempted
with
either
a Block Address
Table
address
or
the
block address
of
a Block Address Table
entry
specifying a nonutilizable page, a
Paging
Queue
Interrupt
condition
occurs
and
the
instruction
is
terminated
with
unpredictable results.
14. The contents
of
the
Translation
Table being loaded to
the
translation
memory
do
not cause a
Paging
Queue
or
Paging
Error
Interrupt
condition.
15.
If
the
translation
memory block size count is
greater
than
the
individual Block Address Table item count
(N)
that
individual block
scan
and
store
is cOlnpleted when
the
N -halfwords have been stored.
16. The contents
of
the
translation
memory being stored into memory
do
not
cause a
Paging
Queue condition
or
Paging
Error
Interrupt
condition.
95
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