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# Vector notation

In vector notation, you specify vectors of VFP registers using angle brackets.

You specify scalar and vector registers in pre-UAL VFP data processing instructions as follows:

• sn is a single-precision scalar register n .

• sn<> is a single-precision vector whose length and stride are given by the current vector length and stride, as defined by VFPASSERT VECTOR. The vector starts at register n .

• sn<L> is a single-precision vector of length L, stride 1. The vector starts at register n .

• sn<L:S> is a single-precision vector of length L , stride S . The vector starts at register n .

• dn is a double-precision scalar register n .

• dn<> is a double-precision vector whose length and stride are given by the current vector length and stride, as defined by VFPASSERT VECTOR. The vector starts at register n .

• dn<L> is a double-precision vector of length L, stride 1. The vector starts at register n .

• dn<L:S> is a double-precision vector of length L , stride S . The vector starts at register n .

You can use this vector notation with names defined using the DN and SN directives.

You must not use this vector notation in the DN and SN directives themselves.