8.20 Restriction on vector length

In VFP vector mode, a vector cannot use the same register twice. This means that vector length is restricted.

Enabling for vector wrap-around, you cannot have:
  • A single-precision vector with length > 4 and stride = 2.
  • A double-precision vector with length > 4 and stride = 1.
  • A double-precision vector with length > 2 and stride = 2.
Related concepts
8.17 Vectors in the VFP extension register bank
8.18 VFP vector wrap-around
Related information
ARM Architecture Reference Manual
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