WP 34S Owner‘s Manual
Edition 2.2
Page 18 of 103
MEMORY
Stack registers
General purpose
registers
User flags
Program steps
D *
R00
00
000
C *
R01
01
001
B *
R02
02
002
Mode
A *
…
…
…
T
Alpha
(31 bytes)
Z
…
…
…
Y
R85
97
504
Display
X
R86
Σ (
x
2
y
)
98
505
R87
Σ
x
99
506
L
I **
R88
Σ
x
²
A
For the first time ever in a calculator, your WP 34S offers a
choice of 4 or 8 stack levels. So either
T
or
D
will be
the top level.
Registers
A
-
D
will be allocated as stack registers if required.
Please see
below
for top level repetition and stack contents in
complex calculations. While register
L
takes the real part of the
last argument,
I
takes the imaginary part when a complex func-
tion was executed (see
C
LASTx).
Using
, registers
R86
-
R99
will contain statistical sums as
indicated.
J
and
K
may be taken for parameters of statistical dis-
tributions.
Unless required for the purposes just mentioned,
A
-
D, I, J,
and
K
are available as additional general purpose registers. For
indi-
rect addressing
, the stack levels and named registers carry the
numbers
100 … 111 as shown at right.
For information about the flags, please turn overleaf.
R89
Σ
y
B
Big
,
overflow
R90
Σ
y
²
C
Carry
R91
Σ (
x y
)
D
Danger
X = R100
R92
n
Y = R101
R93
Σ (ln
x
)
Z = R102
R94
Σ (ln²
x
)
T = R103
R95
Σ (ln
y
)
A = R104
R96
Σ (ln²
y
)
B = R105
R97
Σ(ln
x
ln
y
)
C = R106
R98
Σ (
x
ln
y
)
D = R107
R99
Σ (
y
ln
x
)
L = R108
I = R109
J
***
J = R110
K
***
K = R111
