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CLS
Count leading sign bits.
Syntax
CLS
Wd, Wn ; 32-bit
CLS
Xd, Xn ; 64-bit
Where:
Wd- Is the 32-bit name of the general-purpose destination register.
Wn- Is the 32-bit name of the general-purpose source register.
Xd- Is the 64-bit name of the general-purpose destination register.
Xn- Is the 64-bit name of the general-purpose source register.
Operation
Rd = CLS(Rn)RW or X.