HP 15C Manual de usuario descargar pdf (Pagina 108)

108 Section 10: The Index Register and Loop Control

Indirect Addressing

If R

contains:

% will address:

t V or GV will

transfer to:*

´ b B

" " C

" " Á

" " E

⋮

—

*For R

 0 only.

Index Register Arithmetic

Direct. O or l { + , -, *, ÷ } V. Storage or recall

arithmetic operates with the Index register in the same manner as upon

other data storage registers (page 43).

Indirect. O or l { + , -, *, ÷ } % carries out storage

or recall arithmetic with the contents of the data storage register addressed

by the integer portion of the number (0 to 65) in the Index register. See the

above table.

Exchanging the X-Register

Direct. ´ X V exchanges contents between the X-register and the

Index register. (Works the same as X n does with registers 0 through .9.)

Indirect. ´ X % exchanges contents between the X-register and the

data storage register addressed by the number (0 to 65) in the Index register.

See the above table.

Indirect Branching With V

The V keybut not the % keycan be used for indirect branching

(tV) and subroutine calls (GV). (Only the integer portion of

the number in R

is used.) (% is only used for indirect addressing of

storage registers).

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HP 15C Manual de usuario Pagina 108