HP HP-67

206 Subroutines
Press Display
2315478 3 Your point is 10.
.3335897 3 (5. You missed your point.
.9987562 3 Missed it again.
.9987563 (3 Congratulations! You
win.
Now try it again.
Press Display
.21387963 [} Your point is 4.
.6658975 I3 7. Whoops! You lose.
Subroutine Limits
A subroutine can call up another subroutine, and that subroutine can
call up yet another. Subroutine branching is limited only by the num-
ber of returns that can be held pending by the HP-67. Three subroutine
returns can be held pending at any one time in the HP-67. The dia-
gram below should make this more clear.
Three returns can be pending.
Main Program
@on | @O EDE
/, /, + /
/ /| =3E
B0 / \
\ @ \\
\ \ \
Y \ Y \
\
y