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(33s) Implementation of NOT Function - Printable Version

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(33s) Implementation of NOT Function - Gerald H - 08-09-2022 08:19 AM

Takes any number N from stack and returns NOT(N).
Any number of absolute value not zero returns zero,
zero returns one.
Preserves stack.

Can anyone find a more economical version while preserving the stack?

Code:
1.    LBL N
2.    STO H
3.    CLx
4.    1-ABS(SGN(H))
5.    RTN

N: LN = 28


RE: (33s) Implementation of NOT Function - Gerald H - 09-03-2022 04:07 AM

YES!

But not good for small values, eg input of 0.00000001.

Code:
1.    LBL N
2.    COS
3.    IP
4.    RTN

N: LN = 12

But fastest is

Code:
1.    LBL N
2.    SGN
3.    ABS
4.    STO H
5.    CLx
6.    1
7.    RCL- H
8.    RTN

N: LN = 36


RE: (33s) Implementation of NOT Function - Eddie W. Shore - 09-22-2022 12:19 PM

It's fascinating to see a trig function in one of the codes.