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VMSR

Transfer contents of an ARM register to an Advanced SIMD system register.

Syntax

VMSR{cond} extsysreg, Rd

where:

cond
is an optional condition code.
extsysreg
is the Advanced SIMD and floating-point system register,usually FPSCR, FPSID,or FPEXC.
Rd

is the ARM register. Rd mustnot be PC.

It can be APSR_nzcv, if extsysreg is FPSCR.In this case, the floating-point status flags are transferred intothe corresponding flags in the ARM APSR.

Usage

The VMSR instruction transfersthe contents of Rd into extsysreg.

Note

The instruction stalls the processor until all current Advanced SIMD operations complete.

Example

    VMSR    FPSCR, r4
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