Rapid Reverse Branching & Label Searches

Hi all.

After diving in with the Classics, Woostocks, Spices, etc. I've found both the reusable labels and Rapid Reverse Branching a very effective pair of programming techniques. Even when I port some 34C, 67 programs, I need to reframe them to fit the 42 and 32SII to conform to these other means of label and address usage.

When and why did HP abandon and restructure these methodologies in later series?

Edited: 30 Apr 2012, 10:33 a.m.



Try to relate these techniques to speed and memory resources. They are both effective in slower machines and small RAM space. For fast calculators with lots of memory, they may not make a difference. The HP42S simply inherits the HP41 structure.

You see that this is not exactly consistent to to all new designs, just check that neither the reusable labels are allowed in the HP32S-series.

My thoughts, though.


Luiz (Brazil)

Edited: 30 Apr 2012, 10:50 a.m.


Yes. Thanks to the 'DUP.LBL' message, is a firm but definitive reminder of the single-use protocol. Maybe it's even better this way. Even with the 67's 224-step memory, 26 labels in the 32/33/35 gives enough room for subroutines and other branch points which are spread through the 67's short programming space.

Possibly Related Threads...
Thread Author Replies Views Last Post
  Nibble reverse (HP-48,49,50g) Gerson W. Barbosa 44 6,370 07-28-2013, 10:10 PM
Last Post: Gerson W. Barbosa
  Software for Reverse Polish Notation Calculator JC Howard 4 1,031 03-27-2013, 03:25 PM
Last Post: Mike T
  Reverse Polish Notation Calculator Thomas Klemm 1 618 12-24-2012, 12:18 PM
Last Post: Paul Dale
  Another technique of HP-33S label saving x34 6 1,247 10-11-2012, 11:09 AM
Last Post: Luiz C. Vieira (Brazil)
  [WP 34S] Backside label contents (>> poll <<) Walter B 11 1,781 05-18-2012, 10:01 PM
Last Post: Walter B
  2nd version HP-35 with Finnish manual and back label matti 8 1,674 03-10-2012, 05:34 PM
Last Post: Gerson W. Barbosa
  33s/35s Branching questions Matt Agajanian 0 415 03-02-2012, 01:40 AM
Last Post: Matt Agajanian
  Classic label reproductions? McAllan 4 897 02-27-2012, 04:58 AM
Last Post: McAllan
  Making the wp-34s label glossy Jose Poyan 5 1,054 02-12-2012, 12:15 PM
Last Post: Walter B
  devolution of the wp34s label---or fun with colors troy 19 3,292 02-09-2012, 02:52 PM
Last Post: Egan Ford

Forum Jump: