HP -67 Owner's Handbook Manual page 11

The HP-67
Automatic Memory Stack
Registers
T AT
Program Memory Z.o ]
000 Yoo EETE
001 84
002 84
003 84 Displayed X. . . ...
004 84
005 84 W/PRGM BN RUN '
V\_
220 84 g g
221 84 —
222
84
LAST X
. Q
,
223 84 B,
224 84 = !
ENTER4 |
2
W/DATA MERGE
Addressable Storage Registers
Primary Registers
(i) Address
Lo
R )2
Ro[ 23
Re[—_]22
Ra[______] 21 Protected
R[] 20 Secondary Registers
(i) Address
19
18
17
16
15
14
R Jo Re[[7 1o