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FMINNM (immediate)

Floating-point minimum number with immediate (predicated).

Determine the minimum number value of an immediate and each active floating-point element of the source vector, and destructively place the results in the corresponding elements of the source vector. The immediate may take the value +0.0 or +1.0 only. If the element value is NaN then the result is the immediate. Inactive elements in the destination vector register remain unmodified.

313029282726252423222120191817161514131211109876543210
01100101size011101100Pg0000i1Zdn

SVE

FMINNM <Zdn>.<T>, <Pg>/M, <Zdn>.<T>, <const>

if !HaveSVE() then UNDEFINED;
if size == '00' then UNDEFINED;
integer esize = 8 << UInt(size);
integer g = UInt(Pg);
integer dn = UInt(Zdn);
bits(esize) imm = if i1 == '0' then Zeros() else FPOne('0');

Assembler Symbols

<Zdn>

Is the name of the source and destination scalable vector register, encoded in the "Zdn" field.

<T> Is the size specifier, encoded in size:
size <T>
00 RESERVED
01 H
10 S
11 D
<Pg>

Is the name of the governing scalable predicate register P0-P7, encoded in the "Pg" field.

<const> Is the floating-point immediate value, encoded in i1:
i1 <const>
0 #0.0
1 #1.0

Operation

CheckSVEEnabled();
integer elements = VL DIV esize;
bits(PL) mask = P[g];
bits(VL) operand1 = Z[dn];
bits(VL) result;

for e = 0 to elements-1
    bits(esize) element1 = Elem[operand1, e, esize];
    if ElemP[mask, e, esize] == '1' then
        Elem[result, e, esize] = FPMinNum(element1, imm, FPCR);
    else
        Elem[result, e, esize] = element1;

Z[dn] = result;