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PMUL

Polynomial multiply vectors (unpredicated).

Polynomial multiply over [0, 1] all elements of the second source vector to corresponding elements of the first source vector and place the results in the corresponding elements of the destination vector. This instruction is unpredicated.

313029282726252423222120191817161514131211109876543210
00000100001Zm011001ZnZd

SVE2

PMUL <Zd>.B, <Zn>.B, <Zm>.B

if !HaveSVE2() then UNDEFINED;
integer esize = 8;
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.

<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) result;

for e = 0 to elements-1
    bits(esize) element1 = Elem[operand1, e, esize];
    bits(esize) element2 = Elem[operand2, e, esize];
    Elem[result, e, esize] = PolynomialMult(element1, element2)<esize-1:0>;

Z[d] = result;