#include<libc/asm.h>
MK_C_SYM(copysignf)
	movl	8(%esp),%edx
	andl	$0x80000000,%edx
	movl	4(%esp),%eax
	andl	$0x7fffffff,%eax
	orl	%edx,%eax
	movl	%eax,4(%esp)
	flds	4(%esp)
	ret