clz
Count leading zeros
Sets t1 to the number of 0 bits above the most significant 1 bit of t2, or the register width when t2 is zero.
Forms
clz ,
Operands
t1- Any integer register,
x0tox31, or its named alias, such aszero,t0ort6. t2- An integer register. It may be the same register as
t1.
.text
li t0, 13
# t0=13; clz writes 28 to t2.
clz t2, t0