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VMSR (floating-point)
Transfer contents of an ARM register to an floating-point system register.
Syntax
VMSR{condextsysregRd
where:
cond- is an optional condition code.
extsysreg- is the floating-point system register, usually FPSCR, FPSID, or FPEXC.
Rdis the ARM register.
RdIt can be
APSR_nzcv, ifextsysregFPSCR. In this case, the floating-point status flags are transferred into the corresponding flags in the ARM APSR.
Usage
The VMSR instruction transfers
the contents of Rd into extsysreg.
Note
The instruction stalls the processor until all current floating-point operations complete.Example
VMSR FPSCR, r4