kolibrios/programs/develop/libraries/newlib/math/cos.S

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/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*
* Removed glibc header dependancy by Danny Smith
* <dannysmith@users.sourceforge.net>
*/
.file "cos.s"
.text
.align 4
.globl _cos
.def _cos; .scl 2; .type 32; .endef
_cos:
fldl 4(%esp)
fcos
fnstsw %ax
testl $0x400,%eax
jnz 1f
ret
1: fldpi
fadd %st(0)
fxch %st(1)
2: fprem1
fnstsw %ax
testl $0x400,%eax
jnz 2b
fstp %st(1)
fcos
ret