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INCP (scalar)

Increment scalar by count of true predicate elements.

Counts the number of true elements in the source predicate and then uses the result to increment the scalar destination.


INCP <Xdn>, <Pm>.<T>

if !HaveSVE() then UNDEFINED;
integer esize = 8 << UInt(size);
integer m = UInt(Pm);
integer dn = UInt(Rdn);

Assembler Symbols


Is the 64-bit name of the source and destination general-purpose register, encoded in the "Rdn" field.


Is the name of the source scalable predicate register, encoded in the "Pm" field.

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


integer elements = VL DIV esize;
bits(64) operand1 = X[dn];
bits(PL) operand2 = P[m];
integer count = 0;

for e = 0 to elements-1
    if ElemP[operand2, e, esize] == '1' then
        count = count + 1;

X[dn] = operand1 + count;