git: 9front

ref: fda3acee5812fcae68ed2a50c2cbe15f7f354dfd
dir: /sys/src/libc/arm64/floor.s/

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TEXT	floor(SB), $0
	FMOVD	x+0(FP), F0
	FRINTMD	F0, F0
	RETURN

TEXT	ceil(SB), $0
	FMOVD	x+0(FP), F0
	FRINTPD	F0, F0
	RETURN