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HP 1630D User Manual

HP 1630D
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Performance
Analysis
Measurements

Model1630A/D/G
To
define
the
seven
routines,
first
change
the
label
next
to
the
[State
Label]
field
to
[ADDR]
with
the
NEXT[]
key
.
(ADDR
must
be
previously
defined
in
the
Format
menu
.)
Thenmove
the cursor
to
the
ALL
label
at
the
lower
left
corner
of
the
display
.
Change
this
label
to
"FADD"
.
Then
define
the
low
and
high
addresses
for
this
routine
.
Add
the
remaining
labels
(FSUB,
FMUL,
FDIV,
FCMP,
FMOVE,
FNORM)
by
pressing
INSERT
and
filling
in
the
corresponding
fields
.
Next
move
up
to
the
[states]
field
.
This
defines
how
memory
accesses
following
opcode
fetches
will
be
counted
.
In
the
[states]
mode,
the
accesses
will
be
counted
individually
from
the
opcode
fetches,
adding
to
labels
defining
the
memory
area,
if
such
labels exist
.
In
the
[program
activity]
mode,
these
accesses
will
be
counted
along
with
the
preceding
opcode
fetch
in
the
range
of
the
opcode
fetch
.
Therefore,
in
the
[states]
mode,
stack
accesses
are
counted
as
occurring
at
the
stack
location
while
in
the
[program
activity]
mode
the
stack
accesses
would
be
counted
as
occurring
in
the
location of
the
opcode
preceding
the
stack
accesses
.
For
this
example,
the
[states]
mode
is
used
.
Figure
5-1
is
the
State
Label
Overview
Trace
Specification
for
this
example
measurement
.
The
State
Label
Trace
samples
the
program
activity
in
groups
of
1024
states
per
sample
.
In
between
each
sample,
a
random
delay
is
invoked
to
insure
random
sampling
.
After
running
the
given
example,
the
routine
F_NORM
was
found
to
consume
the
majority
of
the
floating
point
processing
time
.
Refer
to
figure
5-2
.
F_MOVE
also
was
found
to
consume
a
great
deal of
processingtime
.
Bymaking
the
F_NORM
and
F_MOVE
routines
more
efficient,
the
module
performance
could
be
greatly
improved
.
Therefore,
a
great
increase
in
module
performance
could
be
achieved
by
modifying
only
two
of
the
module's
routines
.

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HP 1630D Specifications

General IconGeneral
BrandHP
Model1630D
CategoryMeasuring Instruments
LanguageEnglish

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