Filter
Top Products
14-4 Programming Techniques
In RPN mode,
Branching (GTO)
As we have seen with subroutines, it is often desirable to transfer execution to a part
of the program other than the next line. This is called branching.
Unconditional branching uses the GTO (go to) instruction to branch to a specific
program line (label and line number).
Starts subroutine here.
Enters A.
Enters B.
Enters C.
Enters D.
Recalls the data.
A
2
.
1
A
2
+ B
2
.
2
3
A
2
+ B
2
+ C
2
4
5
A
2
+ B
2
+ C
2
+ D
2
6
Returns to main routine.
135
Nested subroutine
Adds x
2
.
246
Returns to subroutine S.
2222
DCBA +++