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Diffstat (limited to 'ANDROID_3.4.5/arch/arm/nwfpe/softfloat.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/nwfpe/softfloat.h | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/ANDROID_3.4.5/arch/arm/nwfpe/softfloat.h b/ANDROID_3.4.5/arch/arm/nwfpe/softfloat.h deleted file mode 100644 index df4d243a..00000000 --- a/ANDROID_3.4.5/arch/arm/nwfpe/softfloat.h +++ /dev/null @@ -1,281 +0,0 @@ - -/* -=============================================================================== - -This C header file is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2. - -Written by John R. Hauser. This work was made possible in part by the -International Computer Science Institute, located at Suite 600, 1947 Center -Street, Berkeley, California 94704. Funding was partially provided by the -National Science Foundation under grant MIP-9311980. The original version -of this code was written as part of a project to build a fixed-point vector -processor in collaboration with the University of California at Berkeley, -overseen by Profs. Nelson Morgan and John Wawrzynek. More information -is available through the Web page -http://www.jhauser.us/arithmetic/SoftFloat-2b/SoftFloat-source.txt - -THIS SOFTWARE IS DISTRIBUTED AS IS, FOR FREE. Although reasonable effort -has been made to avoid it, THIS SOFTWARE MAY CONTAIN FAULTS THAT WILL AT -TIMES RESULT IN INCORRECT BEHAVIOR. USE OF THIS SOFTWARE IS RESTRICTED TO -PERSONS AND ORGANIZATIONS WHO CAN AND WILL TAKE FULL RESPONSIBILITY FOR ANY -AND ALL LOSSES, COSTS, OR OTHER PROBLEMS ARISING FROM ITS USE. - -Derivative works are acceptable, even for commercial purposes, so long as -(1) they include prominent notice that the work is derivative, and (2) they -include prominent notice akin to these three paragraphs for those parts of -this code that are retained. - -=============================================================================== -*/ - -#ifndef __SOFTFLOAT_H__ -#define __SOFTFLOAT_H__ - - -/* -------------------------------------------------------------------------------- -The macro `FLOATX80' must be defined to enable the extended double-precision -floating-point format `floatx80'. If this macro is not defined, the -`floatx80' type will not be defined, and none of the functions that either -input or output the `floatx80' type will be defined. -------------------------------------------------------------------------------- -*/ -#ifdef CONFIG_FPE_NWFPE_XP -#define FLOATX80 -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point types. -------------------------------------------------------------------------------- -*/ -typedef u32 float32; -typedef u64 float64; -typedef struct { -#ifdef __ARMEB__ - u16 __padding; - u16 high; -#else - u16 high; - u16 __padding; -#endif - u64 low; -} __attribute__ ((packed,aligned(4))) floatx80; - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point underflow tininess-detection mode. -------------------------------------------------------------------------------- -*/ -extern signed char float_detect_tininess; -enum { - float_tininess_after_rounding = 0, - float_tininess_before_rounding = 1 -}; - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point rounding mode. -------------------------------------------------------------------------------- -*/ -//extern int8 float_rounding_mode; -enum { - float_round_nearest_even = 0, - float_round_to_zero = 1, - float_round_down = 2, - float_round_up = 3 -}; - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point exception flags. -------------------------------------------------------------------------------- -enum { - float_flag_inexact = 1, - float_flag_underflow = 2, - float_flag_overflow = 4, - float_flag_divbyzero = 8, - float_flag_invalid = 16 -}; - -ScottB: November 4, 1998 -Changed the enumeration to match the bit order in the FPA11. -*/ - -enum { - float_flag_invalid = 1, - float_flag_divbyzero = 2, - float_flag_overflow = 4, - float_flag_underflow = 8, - float_flag_inexact = 16 -}; - -/* -------------------------------------------------------------------------------- -Routine to raise any or all of the software IEC/IEEE floating-point -exception flags. -------------------------------------------------------------------------------- -*/ -void float_raise( signed char ); - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE integer-to-floating-point conversion routines. -------------------------------------------------------------------------------- -*/ -float32 int32_to_float32( struct roundingData *, signed int ); -float64 int32_to_float64( signed int ); -#ifdef FLOATX80 -floatx80 int32_to_floatx80( signed int ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE single-precision conversion routines. -------------------------------------------------------------------------------- -*/ -signed int float32_to_int32( struct roundingData *, float32 ); -signed int float32_to_int32_round_to_zero( float32 ); -float64 float32_to_float64( float32 ); -#ifdef FLOATX80 -floatx80 float32_to_floatx80( float32 ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE single-precision operations. -------------------------------------------------------------------------------- -*/ -float32 float32_round_to_int( struct roundingData*, float32 ); -float32 float32_add( struct roundingData *, float32, float32 ); -float32 float32_sub( struct roundingData *, float32, float32 ); -float32 float32_mul( struct roundingData *, float32, float32 ); -float32 float32_div( struct roundingData *, float32, float32 ); -float32 float32_rem( struct roundingData *, float32, float32 ); -float32 float32_sqrt( struct roundingData*, float32 ); -char float32_eq( float32, float32 ); -char float32_le( float32, float32 ); -char float32_lt( float32, float32 ); -char float32_eq_signaling( float32, float32 ); -char float32_le_quiet( float32, float32 ); -char float32_lt_quiet( float32, float32 ); -char float32_is_signaling_nan( float32 ); - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE double-precision conversion routines. -------------------------------------------------------------------------------- -*/ -signed int float64_to_int32( struct roundingData *, float64 ); -signed int float64_to_int32_round_to_zero( float64 ); -float32 float64_to_float32( struct roundingData *, float64 ); -#ifdef FLOATX80 -floatx80 float64_to_floatx80( float64 ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE double-precision operations. -------------------------------------------------------------------------------- -*/ -float64 float64_round_to_int( struct roundingData *, float64 ); -float64 float64_add( struct roundingData *, float64, float64 ); -float64 float64_sub( struct roundingData *, float64, float64 ); -float64 float64_mul( struct roundingData *, float64, float64 ); -float64 float64_div( struct roundingData *, float64, float64 ); -float64 float64_rem( struct roundingData *, float64, float64 ); -float64 float64_sqrt( struct roundingData *, float64 ); -char float64_eq( float64, float64 ); -char float64_le( float64, float64 ); -char float64_lt( float64, float64 ); -char float64_eq_signaling( float64, float64 ); -char float64_le_quiet( float64, float64 ); -char float64_lt_quiet( float64, float64 ); -char float64_is_signaling_nan( float64 ); - -#ifdef FLOATX80 - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE extended double-precision conversion routines. -------------------------------------------------------------------------------- -*/ -signed int floatx80_to_int32( struct roundingData *, floatx80 ); -signed int floatx80_to_int32_round_to_zero( floatx80 ); -float32 floatx80_to_float32( struct roundingData *, floatx80 ); -float64 floatx80_to_float64( struct roundingData *, floatx80 ); - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE extended double-precision operations. -------------------------------------------------------------------------------- -*/ -floatx80 floatx80_round_to_int( struct roundingData *, floatx80 ); -floatx80 floatx80_add( struct roundingData *, floatx80, floatx80 ); -floatx80 floatx80_sub( struct roundingData *, floatx80, floatx80 ); -floatx80 floatx80_mul( struct roundingData *, floatx80, floatx80 ); -floatx80 floatx80_div( struct roundingData *, floatx80, floatx80 ); -floatx80 floatx80_rem( struct roundingData *, floatx80, floatx80 ); -floatx80 floatx80_sqrt( struct roundingData *, floatx80 ); -char floatx80_eq( floatx80, floatx80 ); -char floatx80_le( floatx80, floatx80 ); -char floatx80_lt( floatx80, floatx80 ); -char floatx80_eq_signaling( floatx80, floatx80 ); -char floatx80_le_quiet( floatx80, floatx80 ); -char floatx80_lt_quiet( floatx80, floatx80 ); -char floatx80_is_signaling_nan( floatx80 ); - -extern flag floatx80_is_nan(floatx80); - -#endif - -static inline flag extractFloat32Sign(float32 a) -{ - return a >> 31; -} - -static inline flag float32_eq_nocheck(float32 a, float32 b) -{ - return (a == b) || ((bits32) ((a | b) << 1) == 0); -} - -static inline flag float32_lt_nocheck(float32 a, float32 b) -{ - flag aSign, bSign; - - aSign = extractFloat32Sign(a); - bSign = extractFloat32Sign(b); - if (aSign != bSign) - return aSign && ((bits32) ((a | b) << 1) != 0); - return (a != b) && (aSign ^ (a < b)); -} - -static inline flag extractFloat64Sign(float64 a) -{ - return a >> 63; -} - -static inline flag float64_eq_nocheck(float64 a, float64 b) -{ - return (a == b) || ((bits64) ((a | b) << 1) == 0); -} - -static inline flag float64_lt_nocheck(float64 a, float64 b) -{ - flag aSign, bSign; - - aSign = extractFloat64Sign(a); - bSign = extractFloat64Sign(b); - if (aSign != bSign) - return aSign && ((bits64) ((a | b) << 1) != 0); - return (a != b) && (aSign ^ (a < b)); -} - -extern flag float32_is_nan( float32 a ); -extern flag float64_is_nan( float64 a ); - -extern int32 float64_to_uint32( struct roundingData *roundData, float64 a ); -extern int32 float64_to_uint32_round_to_zero( float64 a ); - -#endif |