kolibrios/programs/develop/libraries/kolibri-libc/source/math/fmod.s

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/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
.text
.global fmod;
fmod:
fldl 4(%esp)
fldl 12(%esp)
ftst
fnstsw %ax
fxch %st(1)
sahf
jnz next
fstpl %st(0)
jmp out
next:
fprem
fnstsw %ax
sahf
jpe next
fstpl %st(1)
out:
ret