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Storing Data into Variables 3-9
Example:
The Variables "I" and "J"
There are two variables that you can access directly: the variables I and J. Although
they store values as other variables do, I and J are special in that they can be used
to refer to other variables, including the statistical registers, using the (I) and (J)
commands. (I) is found on the key, while (J) is on the key. This is a
programming technique called indirect addressing that is covered under “Indirectly
Addressing Variables and Labels” in chapter 14.
Keys: Display: Description:
A
Stores 12 in variable A.
_Displays x.
A
Exchanges contents of the X–register
and variable A.
A
Exchanges contents of the X–register
and variable A.
A
12
A
3
T
t
T
t
Z
z
Z
z
Y
y
Y
y
X
3
A
X
12