mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

softfloat: add floatx80 constants

Browse Source 
Add floatx80 constants similarly to float32 or float64.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2011-04-20 13:04:22 +02:00
parent b76235e400
commit f3218a8df0
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
fpu/softfloat.h
View File

@ -154,6 +154,7 @@ typedef struct {
uint64_t low; uint64_t low;
uint16_t high; uint16_t high;
} floatx80; } floatx80;
#define make_floatx80(exp, mant) ((floatx80) { mant, exp })
#endif #endif
#ifdef FLOAT128 #ifdef FLOAT128
typedef struct { typedef struct {
@ -584,6 +585,12 @@ INLINE int floatx80_is_any_nan(floatx80 a)
return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1); return ((a.high & 0x7fff) == 0x7fff) && (a.low<<1);
} }
#define floatx80_zero make_floatx80(0x0000, 0x0000000000000000LL)
#define floatx80_one make_floatx80(0x3fff, 0x8000000000000000LL)
#define floatx80_ln2 make_floatx80(0x3ffe, 0xb17217f7d1cf79acLL)
#define floatx80_half make_floatx80(0x3ffe, 0x8000000000000000LL)
#define floatx80_infinity make_floatx80(0x7fff, 0x8000000000000000LL)
/*---------------------------------------------------------------------------- /*----------------------------------------------------------------------------
| The pattern for a default generated extended double-precision NaN. The | The pattern for a default generated extended double-precision NaN. The
| `high' and `low' values hold the most- and least-significant bits, | `high' and `low' values hold the most- and least-significant bits,