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musl/arch/arm/bits/fenv.h

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support floating point environment (fenv) on armhf (hard float) subarchs patch by nsz. I've tested it on an armhf machine and it seems to be working correctly.
2013-08-16 16:30:37 +00:00
#ifdef __SOFTFP__
initial commit of the arm port this port assumes eabi calling conventions, eabi linux syscall convention, and presence of the kernel helpers at 0xffff0f?0 needed for threads support. otherwise it makes very few assumptions, and the code should work even on armv4 without thumb support, as well as on systems with thumb interworking. the bits headers declare this a little endian system, but as far as i can tell the code should work equally well on big endian. some small details are probably broken; so far, testing has been limited to qemu/aboriginal linux.
2011-09-18 20:44:54 +00:00
#define FE_ALL_EXCEPT 0
#define FE_TONEAREST 0
support floating point environment (fenv) on armhf (hard float) subarchs patch by nsz. I've tested it on an armhf machine and it seems to be working correctly.
2013-08-16 16:30:37 +00:00
#else
#define FE_INVALID 1
#define FE_DIVBYZERO 2
#define FE_OVERFLOW 4
#define FE_UNDERFLOW 8
#define FE_INEXACT 16
#define FE_ALL_EXCEPT 31
#define FE_TONEAREST 0
#define FE_DOWNWARD 0x800000
#define FE_UPWARD 0x400000
#define FE_TOWARDZERO 0xc00000
#endif
initial commit of the arm port this port assumes eabi calling conventions, eabi linux syscall convention, and presence of the kernel helpers at 0xffff0f?0 needed for threads support. otherwise it makes very few assumptions, and the code should work even on armv4 without thumb support, as well as on systems with thumb interworking. the bits headers declare this a little endian system, but as far as i can tell the code should work equally well on big endian. some small details are probably broken; so far, testing has been limited to qemu/aboriginal linux.
2011-09-18 20:44:54 +00:00
typedef unsigned long fexcept_t;
typedef struct {
unsigned long __cw;
} fenv_t;
#define FE_DFL_ENV ((const fenv_t *) -1)