| /** |
| * This file has no copyright assigned and is placed in the Public Domain. |
| * This file is part of the mingw-w64 runtime package. |
| * No warranty is given; refer to the file DISCLAIMER.PD within this package. |
| */ |
| #include <fenv.h> |
| |
| /* 7.6.3.1 |
| The fegetround function returns the value of the rounding direction |
| macro representing the current rounding direction. */ |
| |
| int |
| fegetround (void) |
| { |
| #if defined(_ARM_) || defined(__arm__) |
| fenv_t _env; |
| __asm__ volatile ("fmrx %0, FPSCR" : "=r" (_env)); |
| return (_env.__cw & (FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO)); |
| #elif defined(_ARM64_) || defined(__aarch64__) |
| unsigned __int64 fpcr; |
| __asm__ volatile ("mrs %0, fpcr" : "=r" (fpcr)); |
| return (fpcr & (FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO)); |
| #else |
| int _control; |
| __asm__ volatile ("fnstcw %0" : "=m" (*&_control)); |
| return (_control & (FE_TONEAREST | FE_DOWNWARD | FE_UPWARD | FE_TOWARDZERO)); |
| #endif /* defined(_ARM_) || defined(__arm__) || defined(_ARM64_) || defined(__aarch64__) */ |
| } |
