Infineon TriCore TC1.6P - CLZ.H - Count Leading Zeros in Packed Half-Words

TriCore
®
TC1.6P & TC1.6E
32-bit Unified Processor Core
Instruction Set
V1.0 2013-07
User Manual (Volume 2) 3-73
CLZ.H
Count Leading Zeros in Packed Half-words
Description
Count the number of consecutive zeros in each half-word of D[a], starting with the most significant bit of each half-
word, and put each result in the corresponding half-word of D[c].
CLZ.HD[c], D[a] (RR)
result_halfword1 = zero_ext(leading_zeros(D[a][31:16]));
result_halfword0 = zero_ext(leading_zeros(D[a][15:0]));
D[c] = {result_halfword1[15:0],result_halfword0[15:0]};
Status Flags
Examples
clz.h d3, d1
See Also
CLO, CLO.H, CLS, CLS.H, CLZ
C Not set by this instruction.
V Not set by this instruction.
SV Not set by this instruction.
AV Not set by this instruction.
SAV Not set by this instruction.
31
c
28 27
7C
H
20 19
-
18 17
-
16 15
-
12 11
a
8 7
0F
H
0