HP 35s - How to write a for loop

[Csaba Tizedes]

Far better to use DSE instead of ISG, because

• no need to prepare the loop (1000 / 1 + is not required)
• not limited the loop end value to 999
  

Code:


LBL T
  STO A
  STO B
  LBL L
    RCL B
    RCL - A
    STOP
    DSE A
    GTO L
RTN

This is do the job also (counts from 0 to N-1). A is the counter register and B is for storing the user data to reverse the counting direction (or maybe it required later).


Csaba