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HP HP-67 User Manual

HP HP-67
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Section
7
Program
Editing
Often
you
may
want
to
alter
or
add
to
a
program
that
is
loaded
in
the
calculator.
On
your
HP-67
keyboard,
you
will
find
several
editing
functions
that
permit
you
to
easily
change
any
steps
of
a
loaded
program
without
reloading
the
entire
program.
As
you
may
recall,
except
for
the
default
function
keys,
all
functions
and
operations
on
the
HP-67
keyboard
can
be
recorded
as
instructions
in
program
memory
except
five
others.
These
five
functions
are
pro-
gram
editing
and
manipulation
functions,
and
they
can
aid
you
in
altering
and
correcting
your
programs.
(The
default
functions
above
the
top-row
keys
are
duplicated
elsewhere
on
the
calculator
by
keys
that
can
be
recorded.)
Nonrecordable
Operations
a
is
one
keyboard
operation
that
cannot
be
recorded
in
pro-
gram
memory.
When
you
press
[
with
the
W/PRGM-RUN
switch
wrrem
[[[HMlruN
set
to
W/PRGM,
program
memory
is
cleared
to
instructions
and
the
calculator
is
reset
to
the
top
of
memory
(step
000)
so
that
the
first
instruction
will
be
stored
in
step
001
of
program
memory.
[
also
sets
the
trigonometric
mode
to
DEG,
the
display
mode
to
FIX
2,
clears
flags
FO, F1, F2,
and
F3
(more
about
flags
in
section
13),
and
restores
the
default
functions
to
the
keys
(3
through
[3
)
on
the
top
row
of
the
keyboard.
With
the
W/PRGM-RUN
switch
set
to
RUN,
merely
cancels
an[{l]
pre-
fix
key
that
you
have
pressed.
(single
step)
is
another
nonrecordable
operation.
When
you
press
with
the
W/PRGM-RUN
switch
wprem
[[[[IllRuN
set
to
W/PRGM,
the
calculator
moves
to
and
displays
the
next
step
of
program
memory.
When
you
press
down
with
the
W/PRGM-
RUN
switch wieram
[l
Run
set
to
RUN,
the
calculator
displays
the
next
step
of
program
memory—when
you
release
the
key,
the
calculator
executes
the
instruction
loaded
in
that
step.
permits
you
to
single
step
through
a
program,
executing
the
program
one
step
at
a
time
or
merely viewing
each
step
without
execution,
as
you
choose.
147

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HP HP-67 Specifications

General IconGeneral
BrandHP
ModelHP-67
CategoryCalculator
LanguageEnglish

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