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TEXT setfcr(SB), $0
MOVL p+0(FP),AX
XORB $0x3f,AX
PUSHW AX
WAIT
FLDCW 0(SP)
POPW AX
RET
TEXT getfcr(SB), $0
PUSHW AX
WAIT
FSTCW 0(SP)
POPW AX
XORB $0x3f,AX
RET
TEXT getfsr(SB), $0
WAIT
FSTSW AX
RET
TEXT setfsr(SB), $0
WAIT
FCLEX
RET