Section 13
Indirect Operations
An important feature of the HP-41C is the numerous indirect operations the calculator can perform. Any storage register in the HP-41C can be used for indirect operations. This capability greatly expands the power and utility of your HP-41C. An indirect address is selected by following a function with the shift key, g , and then a register address. The function then uses the number in the specified register as an address. Indirect operations are most useful in programming.
For future reference, here is a complete listing of all HP-41C functions that can be used with indirect addresses:
STO g nn   Store.
STO  +  g nn   Store add (keyboard form).
STO  –  g nn   Store substract (keyboard form).
STO  ×  g nn   Store multiply (keyboard form).
STO  ÷  g nn   Store divide (keyboard form).
ST+ g nn   Store add (display form).
ST– g nn   Store substract (display form).
ST× g nn   Store multiply (display form).
ST÷ g nn   Store divide (display form).
ASTO g nn   ALPHA store.
RCL g nn   Recall.
ARCL g nn   ALPHA recall.
VIEW g nn   View register contents.
GTO g nn   Go to.
XEQ g nn   Execute.
FIX g nn   FIX display format.
SCI g nn   SCI display format.
ENG g nn   ENG display format.
DSE g nn   Controlled decrement loop.
ISG g nn   Controlled increment loop.
TONE g nn   Audible tone pitch.
ΣREG g nn   Define accumulation registers.
SF g nn   Set flag.
CF g nn   Clear flag.
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