3.1.4. VFPv3 double-precision registers

In ARMv5, VFPv2 uses only 16 double-precision registers. In ARMv7, however, the number of double-precision registers depends on the implemented VFP architecture.

If VFPv3-D16 is implemented, there are 16 double-precision registers. If VFPv3-D32 is implemented, there are 32 double-precision registers.

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