14.2.1. Accessing the Advanced SIMD and VFP feature identification registers

Software can identify the versions of the ARMv7 Advanced SIMD and VFP extensions, and the features they provide, using the feature identification registers. These registers reside in the coprocessor space for coprocessors CP10 and CP11.

You can access the feature identification registers using the VMRS and VMSR instructions, for example:

VMRS <Rd>, FPSID ; Read Floating-Point System ID Register
VMRS <Rd>, MVFR0 ; Read Media and VFP Feature Register 0
VMRS <Rd>, MVFR1 ; Read Media and VFP Feature Register 1

Table 14.2 lists the feature identification registers for the Advanced SIMD and VFP extensions.

Table 14.2. Advanced SIMD and VFP feature identification registers


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