33S: new programming strategy
Message #1 Posted by KC on 15 May 2004, 2:13 a.m.
For all of us who have learned programming, be it computer or calculator programming, the two most important keys to writing good programs are (1) to maximize program running speed; and (2) to minimize program space. With the introduction of HP 33S, a totally new strategy comes up where nobody have never meet: to minimize the use of label while not worrying too much about program space. For instance, in the past, when you want to write a program to loop several times, you'd write something like:
Lbl L
1.07 STO Z
Lbl M
Xeq A
ISG Z
Gto M
RTN
And now, you'd rather save one label by writing something like:
Lbl L
Xeq A
Xeq A
Xeq A
.
.
Xeq A
RTN
(Of course, whether it should be changed depends on how many times it loops and how long is the program code in between the loop)
When I got the HP32SII, I looked at the manual, and found out that most example programs in the manual already occupied most of the memory. Now I've acquired the 33S, and look at the manual, and found out most of the programs use up a lot of labels! So limitations are still there, though they are different.
I wonder if there would come up in this forum, or new books about techniques that could minimize the use of labels for programming 33S.
KC
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