| /programs/develop/libraries/newlib/math/tan.S |
|---|
| 0,0 → 1,31 |
| /* |
| * Written by J.T. Conklin <jtc@netbsd.org>. |
| * Public domain. |
| * |
| * Removed header file dependency for use in libmingwex.a by |
| * Danny Smith <dannysmith@users.sourceforge.net> |
| */ |
| .file "tan.s" |
| .text |
| .align 4 |
| .globl _tan |
| .def _tan; .scl 2; .type 32; .endef |
| _tan: |
| fldl 4(%esp) |
| fptan |
| fnstsw %ax |
| testl $0x400,%eax |
| jnz 1f |
| fstp %st(0) |
| ret |
| 1: fldpi |
| fadd %st(0) |
| fxch %st(1) |
| 2: fprem1 |
| fstsw %ax |
| testl $0x400,%eax |
| jnz 2b |
| fstp %st(1) |
| fptan |
| fstp %st(0) |
| ret |