SCLAMP

Signed clamp to minimum/maximum vector

Clamp each signed element in the destination vector to between the signed minimum value in the corresponding element of the first source vector and the signed maximum value in the corresponding element of the second source vector and destructively write the results in the corresponding elements of the destination vector. This instruction is unpredicated.

SVE2
(FEAT_SME)

313029282726252423222120191817161514131211109876543210
01000100size0Zm110000ZnZd
U

SCLAMP <Zd>.<T>, <Zn>.<T>, <Zm>.<T>

if !HaveSME() then UNDEFINED; integer esize = 8 << UInt(size); integer n = UInt(Zn); integer m = UInt(Zm); integer d = UInt(Zd);

Assembler Symbols

<Zd>

Is the name of the destination scalable vector register, encoded in the "Zd" field.

<T>

Is the size specifier, encoded in size:

size <T>
00 B
01 H
10 S
11 D
<Zn>

Is the name of the first source scalable vector register, encoded in the "Zn" field.

<Zm>

Is the name of the second source scalable vector register, encoded in the "Zm" field.

Operation

CheckSVEEnabled(); integer elements = VL DIV esize; bits(VL) operand1 = Z[n]; bits(VL) operand2 = Z[m]; bits(VL) operand3 = Z[d]; bits(VL) result; for e = 0 to elements-1 integer element1 = SInt(Elem[operand1, e, esize]); integer element2 = SInt(Elem[operand2, e, esize]); integer element3 = SInt(Elem[operand3, e, esize]); integer res = Min(Max(element1 , element3), element2); Elem[result, e, esize] = res<esize-1:0>; Z[d] = result;

Operational information

If FEAT_SVE2 is enabled or FEAT_SME is enabled, then when PSTATE.DIT is 1:

This instruction might be immediately preceded in program order by a MOVPRFX instruction. The MOVPRFX instruction must conform to all of the following requirements, otherwise the behavior of the MOVPRFX and this instruction is unpredictable:


Internal version only: isa v33.11seprel, AdvSIMD v29.05, pseudocode v2021-09_rel, sve v2021-09_rc3d ; Build timestamp: 2021-10-06T11:41

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