Re: Count Leading Zeros (cntlzw)

From: Lars <lbg_@xxxxxxxxxxxx>
Date: Mon, 29 Aug 2005 20:07:40 +0200

Torjei Kvinen wrote:

Kostas wrote:
How should it be best implemented in order to be best optimised?
function cntlzw(const v: Longword): Longword;
asm
    MOV    EDX, 00000020h
    BSF    EAX, EAX
    CMOVZ  EAX, EDX
end;


Can somebody validate this

cntlzw(0) = 32 ok
cntlzw(1) = 0  wrong

Regards
Lars
.

References:
- Count Leading Zeros (cntlzw)
  - From: Kostas
- Re: Count Leading Zeros (cntlzw)
  - From: Torjei Kvinen

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