Transfer contents of a general-purpose register to a floating-point system register.
- is an optional condition code.
- is the floating-point system register, usually FPSCR, FPSID, or FPEXC.
is the general-purpose register.
must not be PC.
It can be
FPSCR. In this case, the floating-point status flags are transferred into the corresponding flags in the special-purpose APSR.
VMSR instruction transfers
the contents of
NoteThe instruction stalls the processor until all current floating-point operations complete.
VMSR FPSCR, r4