glibc/sysdeps/i386/i686/fpu/e_log.S

30 lines
408 B
ArmAsm

/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*
* Adapted for i686 instructions.
*/
#include <machine/asm.h>
.text
ENTRY(__ieee754_log)
fldln2 // log(2)
fldl 4(%esp) // x : log(2)
fucomi %st
jp 3f
fyl2x // log(x)
ret
3: fstp %st(1)
ret
END (__ieee754_log)
ENTRY(__log_finite)
fldln2 // log(2)
fldl 4(%esp) // x : log(2)
fyl2x // log(x)
ret
END(__log_finite)