AMD~
AMD5J!16
Processor
Technical
Reference
Manual
18524B/O-Mar1996
cache
tags.
The
AMD5
K
86
and
Pentium
processors
both
support
inquire
cycles.
Internal Snooping:
These
snoops
are
initiated
by
the
processor
(rather
than
sys-
tem
logic)
during
certain
types
of
cache
accesses.
Both
the
AMD5
K
86
and
Pen-
tium
microprocessors
support
this
type
of
internal
snooping
for
the
purpose
of
detecting
self-modifying
code.
See
page
2-22
for
details.
•
Bus
Watch:
Some
caching
devices
watch
their
address
and
data
bus
continu-
ously
while
they
are
held
off
the
bus.
They
compare
every
address
driven
by
another
bus
master
with
their
internal
cache
tags,
and
they
may
also
be
able
to
update
their
cached
lines
during
writebacks
to
memory
by
another
bus
master.
Neither
the
AMD5
K
86
nor
Pentium
microprocessors
support
bus
watching.
• Cold
and
Warm
Reset-The
terms
cold
or
hard
reset
and
warm
or
soft
reset
are
commonly
used
to
mean
three
related
but
different
things,
and
the
terms
are
therefore
avoided.
A cold
or
hard
reset
typically
refers
to
the
assertion
of
RESET
at
power-up,
but
warm
or
soft
reset
can
refer
either
to
the
assertion
of
RESET
after
power-up
or
to
the
assertion
of
INIT.
•
System
Logic-Any
logic
outside
the
processor,
including
a core-logic
chipset,
another
bus
master,
or
separate
controllers
for L2
cache,
memory,
interrupts,
DMA,
communications,
video,
bus
bridging,
bus
arbitration,
or
any
other
system
function.
References
Abel,
Peter.
IBM
PC
Assembly Language
and
Programming.
Englewood
Cliffs:
Prentice
Hall,1995.
Abramovici,
Miron;
Melvin
A.
Breuer;
and
Arthur
D.
Friedman.
Digital Systems Test-
ing
and
Testable Design.
New
York:
IEEE
Press,
1990.
Agarwal,
Rakesh.
80x86 Architecture & Programming. Vols. I
and
II.
Englewood
Cliffs:
Prentice-Hall,
1991.
Alexandridis,
Nikitas.
Design
of
Microprocessor-Based Systems.
Englewood
Cliffs:
Pren-
tice-Hall,
1993.
Anderson,
Don,
and
Tom
Shanley.
Pentium
Processor
System
Architecture.
Reading:
Addison-Wesley,
1995.
Barkakati,
Nabajyoti,
and
Randall
Hyde.
Microsoft Macro Assembler Bible.
Carmel:
Sams,
1992.
Brey,
Barry
B.
The Intel 32-Bit Microprocessors.
Englewood
Cliffs:
Prentice
Hall,
1995.
Brown,
Ralf,
and
Jim
Kyle.
PC
Interrupts, A Programmer's Reference to BIOS, DOS,
and
Third-Party Calls.
Reading:
Addison-Wesley, 1994.
For
an
updated
version
on
the
Internet,
ftp
to
oak.
oakl
and.
edu
and
get
file
/pub/msdos/i
nfo/i
nter41.
zi
p.
xviii
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