Page 78 - slides.dvi

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Turns
Operating
virtual
how
load
out
with
need
what
what
“int
Address
Systems
systems
require
Summary
—
compile
Portability:
Contiguous
x;
that
time
large
time,
much
(1
addresses
x
about
Virtual
⇒
we
time
binding
=
happens
get
of
directly
and
lump
⇒
if
can
expensive
(i.e.
work
2)
it
Addressing
of
5;”
memory
allocation:
must
→
has
swapping?
avoid
accessed
every
physical
[external]
Summary
dealing
should
memory
lots
less?
know
“movl
compaction
we
time.
of
or
for
with
load
[physical]
addresses.
$0x5,
more?
assume
process
fragmentation
a
problems
absolute
address.
by
memory,
????”
which
“standard”
addressing):
separating
caused
machine
some
concepts
will
of
have?
logical
problems,
or
e.g.
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