HP HP-67 - Automatic Register Review

Storing and Recalling Numbers 77
Automatic Register Review
To view the contents of any individual primary storage register, you
can recall the contents of the register into the displayed X-register.
However, you can also review the contents of all primary storage
registers by using the (register review) function.
When you press [} , the contents of each primary storage register
are automatically shown by the display, beginning with register R,
and continuing through register Ry, then R, through R, and finally I.
In addition, an address identifying the register being displayed appears
on the right-hand side of the display preceding the storage register
contents. The addresses are O through 9 to indicate storage registers
R, through Ry, 20 through 24 to indicate registers R, through Rg, and
25 to indicate the I-register.
(The reason for this addressing scheme will become clear later, when
you learn about indirect addressing.)
For example, if you have worked through the examples as shown
above, an automatic register review should give you displays like
the ones shown below.
Press Display
o E Address for register R,.
Contents of R,.
Address for register Rs.
82475000.00 Contents of Rs.
iIiUIUiDiIiIiII