| 1 | /** |
| 2 | * This file has no copyright assigned and is placed in the Public Domain. |
| 3 | * This file is part of the mingw-w64 runtime package. |
| 4 | * No warranty is given; refer to the file DISCLAIMER.PD within this package. |
| 5 | */ |
| 6 | /* |
| 7 | * Written by J.T. Conklin <jtc@netbsd.org>. |
| 8 | * Public domain. |
| 9 | * |
| 10 | */ |
| 11 | |
| 12 | #include <math.h> |
| 13 | |
| 14 | float |
| 15 | atan2f (float y, float x) |
| 16 | { |
| 17 | float res = 0.0F; |
| 18 | asm volatile ("fpatan" : "=t" (res) : "u" (y), "0" (x) : "st(1)"); |
| 19 | return res; |
| 20 | } |