WP 34S mini-challenge

[Sanjeev Visvanatha]

(01-21-2014 02:19 PM)Gerson W. Barbosa Wrote:  The original HP-15C program assumes n on register X, no previous initialization:

100000 GSB A --> 5000050000

Anyway, your program would return 5000150000, which is off by 100000. But of course it can be improved. Since the increment is 1 the fractional part is optional, thus saving the IP instruction. Also, you can use BACK nnn to save occasional LBLs steps in the middle of the program.

Regards,

Gerson.

Thank you. Revisions are respectfully submitted below, for a 5 step solution:

LBL D
X-><- 01
CLx
RCL+ 01
DSE 01
BACK 002
RTN

I believe this leaves the stack unchanged as well, but does take a while with your example.

100000 D ----> 5,000,050,000