1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374 |
- #ifndef _FENV_H
- #define _FENV_H
- #define FE_TONEAREST 0x0UL
- #define FE_UPWARD 0x1UL
- #define FE_DOWNWARD 0x2UL
- #define FE_TOWARDZERO 0x3UL
- extern inline int fesetround (int) __attribute__ ((always_inline,gnu_inline));
- extern inline int fegetround (void) __attribute__ ((always_inline,gnu_inline));
- extern inline __attribute__ ((always_inline,gnu_inline))
- int fegetround (void)
- {
-
- int res;
- __asm__ volatile ("mfcr %0, $psw " : "=d" (res) : : "memory");
- return (res & 0x03000000UL) >> 24uL;
- }
- extern inline __attribute__ ((always_inline,gnu_inline))
- int fesetround (int round)
- {
-
- #if defined (ERRATA_CPU114)
- __asm__ volatile ("updfl %0" :: "d" (0xf00 | (round & 3)) : "memory");
- #else
- __asm__ volatile ("updfl %0" :: "d" (0x300 | (round & 3)) : "memory");
- #endif
- return 0;
- }
- #endif
|