Duh!

On Mon, Feb 1, 2021 at 9:42 AM dbm@refined-audiometrics.com <dbm@refined-audiometrics.com> wrote:
(1- (integer-length x))


On Feb 1, 2021, at 1:24 AM, Marco Antoniotti <marco.antoniotti@unimib.it> wrote:

Hi

I am wasti....  devoting some time to recreational hacking and I bumped into an interesting bit fiddling operation.

I pored over the CLHS, but, while I may have missed something obvious, I am not sure what would be the best way to implement such a function using the standard operations.

Any ideas?

Note that it appears that most HW does have an instruction to do that directly.

Thanks
Marco

--
Marco Antoniotti, Associate Professor         tel. +39 - 02 64 48 79 01
DISCo, Università Milano Bicocca U14 2043 http://bimib.disco.unimib.it
Viale Sarca 336
I-20126 Milan (MI) ITALY



--
Marco Antoniotti, Associate Professor         tel. +39 - 02 64 48 79 01
DISCo, Università Milano Bicocca U14 2043 http://bimib.disco.unimib.it
Viale Sarca 336
I-20126 Milan (MI) ITALY