Indirect Store And Recall - HP -34C Owner's Handbook Manual

158 Advanced Programming
Keystrokes Display
20 (1) [xx1) -15.3974 Exchanges the contents of
the displayed X-register and
L
x%Y 1.2345 Exchanges the contents of
the displayed X-register and
the Y-register.
™) 20.0000 Exchanges the contents of
the displayed X-register and
I, using the integerstored in
I as an address.
(Red) (7] (1) 1.2345 Recalls a copy of the con-
tents of I.
(f] CLEAR 1.2345 Clears the contents ofall
storage registers to 0.
0.0000 Clears all stack registers.
Indirect Store and Recall
Like (xx@), you can use the I-register to indirectly address all 21 storage
registers for and operations. When you press 0 @,
the value in the display is stored in the storage register addressed by the
numberin the I-register. [¥] [(]addresses the storage registers in a
like manner, as do the storage register arithmetic operations
(0], 19 (3] (], () (@], and (s10] (+] (@]. (fyouhave for-
gotten the normal operation of the storage registers, or of storage regis-
ter arithmetic, go back and review section 4, Storing and Recalling
Numbers, inSolving Problems With Your Hewlett-Packard Calculator.)
When using M W, (1] [@], or any of the storage register
arithmetic operations utilizing the (@] function, the I-register can contain
the same positive or negative values from O through 20, as used with
).