diff --git a/lib/libc/softfloat/templates/milieu.h b/lib/libc/softfloat/templates/milieu.h index b7bd8e5f5f41..914efdf4fe7b 100644 --- a/lib/libc/softfloat/templates/milieu.h +++ b/lib/libc/softfloat/templates/milieu.h @@ -1,49 +1,49 @@ -/* $FreeBSD$ */ - -/* -=============================================================================== - -This C header file is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2a. - -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://HTTP.CS.Berkeley.EDU/~jhauser/ -arithmetic/SoftFloat.html'. - -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 four paragraphs for those parts of -this code that are retained. - -=============================================================================== -*/ - -/* -------------------------------------------------------------------------------- -Include common integer types and flags. -------------------------------------------------------------------------------- -*/ -#include "../../../processors/!!!processor.h" - -/* -------------------------------------------------------------------------------- -Symbolic Boolean literals. -------------------------------------------------------------------------------- -*/ -enum { - FALSE = 0, - TRUE = 1 -}; - +/* $FreeBSD$ */ + +/* +=============================================================================== + +This C header file is part of the SoftFloat IEC/IEEE Floating-point +Arithmetic Package, Release 2a. + +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://HTTP.CS.Berkeley.EDU/~jhauser/ +arithmetic/SoftFloat.html'. + +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 four paragraphs for those parts of +this code that are retained. + +=============================================================================== +*/ + +/* +------------------------------------------------------------------------------- +Include common integer types and flags. +------------------------------------------------------------------------------- +*/ +#include "../../../processors/!!!processor.h" + +/* +------------------------------------------------------------------------------- +Symbolic Boolean literals. +------------------------------------------------------------------------------- +*/ +enum { + FALSE = 0, + TRUE = 1 +}; + diff --git a/lib/libc/softfloat/templates/softfloat-specialize b/lib/libc/softfloat/templates/softfloat-specialize index a1dc4de86a53..b1a39021734f 100644 --- a/lib/libc/softfloat/templates/softfloat-specialize +++ b/lib/libc/softfloat/templates/softfloat-specialize @@ -1,465 +1,465 @@ -/* $FreeBSD$ */ - -/* -=============================================================================== - -This C source fragment is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2a. - -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://HTTP.CS.Berkeley.EDU/~jhauser/ -arithmetic/SoftFloat.html'. - -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 four paragraphs for those parts of -this code that are retained. - -=============================================================================== -*/ - -/* -------------------------------------------------------------------------------- -Underflow tininess-detection mode, statically initialized to default value. -(The declaration in `softfloat.h' must match the `int8' type here.) -------------------------------------------------------------------------------- -*/ -int8 float_detect_tininess = float_tininess_after_rounding; - -/* -------------------------------------------------------------------------------- -Raises the exceptions specified by `flags'. Floating-point traps can be -defined here if desired. It is currently not possible for such a trap to -substitute a result value. If traps are not implemented, this routine -should be simply `float_exception_flags |= flags;'. -------------------------------------------------------------------------------- -*/ -void float_raise( int8 flags ) -{ - - float_exception_flags |= flags; - -} - -/* -------------------------------------------------------------------------------- -Internal canonical NaN format. -------------------------------------------------------------------------------- -*/ -typedef struct { - flag sign; - bits64 high, low; -} commonNaNT; - -/* -------------------------------------------------------------------------------- -The pattern for a default generated single-precision NaN. -------------------------------------------------------------------------------- -*/ -#define float32_default_nan 0xFFFFFFFF - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is a NaN; -otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float32_is_nan( float32 a ) -{ - - return ( 0xFF000000 < (bits32) ( a<<1 ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the single-precision floating-point value `a' is a signaling -NaN; otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float32_is_signaling_nan( float32 a ) -{ - - return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the single-precision floating-point NaN -`a' to the canonical NaN format. If `a' is a signaling NaN, the invalid -exception is raised. -------------------------------------------------------------------------------- -*/ -static commonNaNT float32ToCommonNaN( float32 a ) -{ - commonNaNT z; - - if ( float32_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); - z.sign = a>>31; - z.low = 0; - z.high = ( (bits64) a )<<41; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the canonical NaN `a' to the single- -precision floating-point format. -------------------------------------------------------------------------------- -*/ -static float32 commonNaNToFloat32( commonNaNT a ) -{ - - return ( ( (bits32) a.sign )<<31 ) | 0x7FC00000 | ( a.high>>41 ); - -} - -/* -------------------------------------------------------------------------------- -Takes two single-precision floating-point values `a' and `b', one of which -is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a -signaling NaN, the invalid exception is raised. -------------------------------------------------------------------------------- -*/ -static float32 propagateFloat32NaN( float32 a, float32 b ) -{ - flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; - - aIsNaN = float32_is_nan( a ); - aIsSignalingNaN = float32_is_signaling_nan( a ); - bIsNaN = float32_is_nan( b ); - bIsSignalingNaN = float32_is_signaling_nan( b ); - a |= 0x00400000; - b |= 0x00400000; - if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); - if ( aIsNaN ) { - return ( aIsSignalingNaN & bIsNaN ) ? b : a; - } - else { - return b; - } - -} - -/* -------------------------------------------------------------------------------- -The pattern for a default generated double-precision NaN. -------------------------------------------------------------------------------- -*/ -#define float64_default_nan LIT64( 0xFFFFFFFFFFFFFFFF ) - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is a NaN; -otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float64_is_nan( float64 a ) -{ - - return ( LIT64( 0xFFE0000000000000 ) < (bits64) ( a<<1 ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the double-precision floating-point value `a' is a signaling -NaN; otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float64_is_signaling_nan( float64 a ) -{ - - return - ( ( ( a>>51 ) & 0xFFF ) == 0xFFE ) - && ( a & LIT64( 0x0007FFFFFFFFFFFF ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the double-precision floating-point NaN -`a' to the canonical NaN format. If `a' is a signaling NaN, the invalid -exception is raised. -------------------------------------------------------------------------------- -*/ -static commonNaNT float64ToCommonNaN( float64 a ) -{ - commonNaNT z; - - if ( float64_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); - z.sign = a>>63; - z.low = 0; - z.high = a<<12; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the canonical NaN `a' to the double- -precision floating-point format. -------------------------------------------------------------------------------- -*/ -static float64 commonNaNToFloat64( commonNaNT a ) -{ - - return - ( ( (bits64) a.sign )<<63 ) - | LIT64( 0x7FF8000000000000 ) - | ( a.high>>12 ); - -} - -/* -------------------------------------------------------------------------------- -Takes two double-precision floating-point values `a' and `b', one of which -is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a -signaling NaN, the invalid exception is raised. -------------------------------------------------------------------------------- -*/ -static float64 propagateFloat64NaN( float64 a, float64 b ) -{ - flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; - - aIsNaN = float64_is_nan( a ); - aIsSignalingNaN = float64_is_signaling_nan( a ); - bIsNaN = float64_is_nan( b ); - bIsSignalingNaN = float64_is_signaling_nan( b ); - a |= LIT64( 0x0008000000000000 ); - b |= LIT64( 0x0008000000000000 ); - if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); - if ( aIsNaN ) { - return ( aIsSignalingNaN & bIsNaN ) ? b : a; - } - else { - return b; - } - -} - -#ifdef FLOATX80 - -/* -------------------------------------------------------------------------------- -The pattern for a default generated extended double-precision NaN. The -`high' and `low' values hold the most- and least-significant bits, -respectively. -------------------------------------------------------------------------------- -*/ -#define floatx80_default_nan_high 0xFFFF -#define floatx80_default_nan_low LIT64( 0xFFFFFFFFFFFFFFFF ) - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is a -NaN; otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag floatx80_is_nan( floatx80 a ) -{ - - return ( ( a.high & 0x7FFF ) == 0x7FFF ) && (bits64) ( a.low<<1 ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the extended double-precision floating-point value `a' is a -signaling NaN; otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag floatx80_is_signaling_nan( floatx80 a ) -{ - bits64 aLow; - - aLow = a.low & ~ LIT64( 0x4000000000000000 ); - return - ( ( a.high & 0x7FFF ) == 0x7FFF ) - && (bits64) ( aLow<<1 ) - && ( a.low == aLow ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the extended double-precision floating- -point NaN `a' to the canonical NaN format. If `a' is a signaling NaN, the -invalid exception is raised. -------------------------------------------------------------------------------- -*/ -static commonNaNT floatx80ToCommonNaN( floatx80 a ) -{ - commonNaNT z; - - if ( floatx80_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); - z.sign = a.high>>15; - z.low = 0; - z.high = a.low<<1; - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the canonical NaN `a' to the extended -double-precision floating-point format. -------------------------------------------------------------------------------- -*/ -static floatx80 commonNaNToFloatx80( commonNaNT a ) -{ - floatx80 z; - - z.low = LIT64( 0xC000000000000000 ) | ( a.high>>1 ); - z.high = ( ( (bits16) a.sign )<<15 ) | 0x7FFF; - return z; - -} - -/* -------------------------------------------------------------------------------- -Takes two extended double-precision floating-point values `a' and `b', one -of which is a NaN, and returns the appropriate NaN result. If either `a' or -`b' is a signaling NaN, the invalid exception is raised. -------------------------------------------------------------------------------- -*/ -static floatx80 propagateFloatx80NaN( floatx80 a, floatx80 b ) -{ - flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; - - aIsNaN = floatx80_is_nan( a ); - aIsSignalingNaN = floatx80_is_signaling_nan( a ); - bIsNaN = floatx80_is_nan( b ); - bIsSignalingNaN = floatx80_is_signaling_nan( b ); - a.low |= LIT64( 0xC000000000000000 ); - b.low |= LIT64( 0xC000000000000000 ); - if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); - if ( aIsNaN ) { - return ( aIsSignalingNaN & bIsNaN ) ? b : a; - } - else { - return b; - } - -} - -#endif - -#ifdef FLOAT128 - -/* -------------------------------------------------------------------------------- -The pattern for a default generated quadruple-precision NaN. The `high' and -`low' values hold the most- and least-significant bits, respectively. -------------------------------------------------------------------------------- -*/ -#define float128_default_nan_high LIT64( 0xFFFFFFFFFFFFFFFF ) -#define float128_default_nan_low LIT64( 0xFFFFFFFFFFFFFFFF ) - -/* -------------------------------------------------------------------------------- -Returns 1 if the quadruple-precision floating-point value `a' is a NaN; -otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float128_is_nan( float128 a ) -{ - - return - ( LIT64( 0xFFFE000000000000 ) <= (bits64) ( a.high<<1 ) ) - && ( a.low || ( a.high & LIT64( 0x0000FFFFFFFFFFFF ) ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns 1 if the quadruple-precision floating-point value `a' is a -signaling NaN; otherwise returns 0. -------------------------------------------------------------------------------- -*/ -flag float128_is_signaling_nan( float128 a ) -{ - - return - ( ( ( a.high>>47 ) & 0xFFFF ) == 0xFFFE ) - && ( a.low || ( a.high & LIT64( 0x00007FFFFFFFFFFF ) ) ); - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the quadruple-precision floating-point NaN -`a' to the canonical NaN format. If `a' is a signaling NaN, the invalid -exception is raised. -------------------------------------------------------------------------------- -*/ -static commonNaNT float128ToCommonNaN( float128 a ) -{ - commonNaNT z; - - if ( float128_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); - z.sign = a.high>>63; - shortShift128Left( a.high, a.low, 16, &z.high, &z.low ); - return z; - -} - -/* -------------------------------------------------------------------------------- -Returns the result of converting the canonical NaN `a' to the quadruple- -precision floating-point format. -------------------------------------------------------------------------------- -*/ -static float128 commonNaNToFloat128( commonNaNT a ) -{ - float128 z; - - shift128Right( a.high, a.low, 16, &z.high, &z.low ); - z.high |= ( ( (bits64) a.sign )<<63 ) | LIT64( 0x7FFF800000000000 ); - return z; - -} - -/* -------------------------------------------------------------------------------- -Takes two quadruple-precision floating-point values `a' and `b', one of -which is a NaN, and returns the appropriate NaN result. If either `a' or -`b' is a signaling NaN, the invalid exception is raised. -------------------------------------------------------------------------------- -*/ -static float128 propagateFloat128NaN( float128 a, float128 b ) -{ - flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; - - aIsNaN = float128_is_nan( a ); - aIsSignalingNaN = float128_is_signaling_nan( a ); - bIsNaN = float128_is_nan( b ); - bIsSignalingNaN = float128_is_signaling_nan( b ); - a.high |= LIT64( 0x0000800000000000 ); - b.high |= LIT64( 0x0000800000000000 ); - if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); - if ( aIsNaN ) { - return ( aIsSignalingNaN & bIsNaN ) ? b : a; - } - else { - return b; - } - -} - -#endif - +/* $FreeBSD$ */ + +/* +=============================================================================== + +This C source fragment is part of the SoftFloat IEC/IEEE Floating-point +Arithmetic Package, Release 2a. + +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://HTTP.CS.Berkeley.EDU/~jhauser/ +arithmetic/SoftFloat.html'. + +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 four paragraphs for those parts of +this code that are retained. + +=============================================================================== +*/ + +/* +------------------------------------------------------------------------------- +Underflow tininess-detection mode, statically initialized to default value. +(The declaration in `softfloat.h' must match the `int8' type here.) +------------------------------------------------------------------------------- +*/ +int8 float_detect_tininess = float_tininess_after_rounding; + +/* +------------------------------------------------------------------------------- +Raises the exceptions specified by `flags'. Floating-point traps can be +defined here if desired. It is currently not possible for such a trap to +substitute a result value. If traps are not implemented, this routine +should be simply `float_exception_flags |= flags;'. +------------------------------------------------------------------------------- +*/ +void float_raise( int8 flags ) +{ + + float_exception_flags |= flags; + +} + +/* +------------------------------------------------------------------------------- +Internal canonical NaN format. +------------------------------------------------------------------------------- +*/ +typedef struct { + flag sign; + bits64 high, low; +} commonNaNT; + +/* +------------------------------------------------------------------------------- +The pattern for a default generated single-precision NaN. +------------------------------------------------------------------------------- +*/ +#define float32_default_nan 0xFFFFFFFF + +/* +------------------------------------------------------------------------------- +Returns 1 if the single-precision floating-point value `a' is a NaN; +otherwise returns 0. +------------------------------------------------------------------------------- +*/ +flag float32_is_nan( float32 a ) +{ + + return ( 0xFF000000 < (bits32) ( a<<1 ) ); + +} + +/* +------------------------------------------------------------------------------- +Returns 1 if the single-precision floating-point value `a' is a signaling +NaN; otherwise returns 0. +------------------------------------------------------------------------------- +*/ +flag float32_is_signaling_nan( float32 a ) +{ + + return ( ( ( a>>22 ) & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF ); + +} + +/* +------------------------------------------------------------------------------- +Returns the result of converting the single-precision floating-point NaN +`a' to the canonical NaN format. If `a' is a signaling NaN, the invalid +exception is raised. +------------------------------------------------------------------------------- +*/ +static commonNaNT float32ToCommonNaN( float32 a ) +{ + commonNaNT z; + + if ( float32_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); + z.sign = a>>31; + z.low = 0; + z.high = ( (bits64) a )<<41; + return z; + +} + +/* +------------------------------------------------------------------------------- +Returns the result of converting the canonical NaN `a' to the single- +precision floating-point format. +------------------------------------------------------------------------------- +*/ +static float32 commonNaNToFloat32( commonNaNT a ) +{ + + return ( ( (bits32) a.sign )<<31 ) | 0x7FC00000 | ( a.high>>41 ); + +} + +/* +------------------------------------------------------------------------------- +Takes two single-precision floating-point values `a' and `b', one of which +is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a +signaling NaN, the invalid exception is raised. +------------------------------------------------------------------------------- +*/ +static float32 propagateFloat32NaN( float32 a, float32 b ) +{ + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; + + aIsNaN = float32_is_nan( a ); + aIsSignalingNaN = float32_is_signaling_nan( a ); + bIsNaN = float32_is_nan( b ); + bIsSignalingNaN = float32_is_signaling_nan( b ); + a |= 0x00400000; + b |= 0x00400000; + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); + if ( aIsNaN ) { + return ( aIsSignalingNaN & bIsNaN ) ? b : a; + } + else { + return b; + } + +} + +/* +------------------------------------------------------------------------------- +The pattern for a default generated double-precision NaN. +------------------------------------------------------------------------------- +*/ +#define float64_default_nan LIT64( 0xFFFFFFFFFFFFFFFF ) + +/* +------------------------------------------------------------------------------- +Returns 1 if the double-precision floating-point value `a' is a NaN; +otherwise returns 0. +------------------------------------------------------------------------------- +*/ +flag float64_is_nan( float64 a ) +{ + + return ( LIT64( 0xFFE0000000000000 ) < (bits64) ( a<<1 ) ); + +} + +/* +------------------------------------------------------------------------------- +Returns 1 if the double-precision floating-point value `a' is a signaling +NaN; otherwise returns 0. +------------------------------------------------------------------------------- +*/ +flag float64_is_signaling_nan( float64 a ) +{ + + return + ( ( ( a>>51 ) & 0xFFF ) == 0xFFE ) + && ( a & LIT64( 0x0007FFFFFFFFFFFF ) ); + +} + +/* +------------------------------------------------------------------------------- +Returns the result of converting the double-precision floating-point NaN +`a' to the canonical NaN format. If `a' is a signaling NaN, the invalid +exception is raised. +------------------------------------------------------------------------------- +*/ +static commonNaNT float64ToCommonNaN( float64 a ) +{ + commonNaNT z; + + if ( float64_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); + z.sign = a>>63; + z.low = 0; + z.high = a<<12; + return z; + +} + +/* +------------------------------------------------------------------------------- +Returns the result of converting the canonical NaN `a' to the double- +precision floating-point format. +------------------------------------------------------------------------------- +*/ +static float64 commonNaNToFloat64( commonNaNT a ) +{ + + return + ( ( (bits64) a.sign )<<63 ) + | LIT64( 0x7FF8000000000000 ) + | ( a.high>>12 ); + +} + +/* +------------------------------------------------------------------------------- +Takes two double-precision floating-point values `a' and `b', one of which +is a NaN, and returns the appropriate NaN result. If either `a' or `b' is a +signaling NaN, the invalid exception is raised. +------------------------------------------------------------------------------- +*/ +static float64 propagateFloat64NaN( float64 a, float64 b ) +{ + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; + + aIsNaN = float64_is_nan( a ); + aIsSignalingNaN = float64_is_signaling_nan( a ); + bIsNaN = float64_is_nan( b ); + bIsSignalingNaN = float64_is_signaling_nan( b ); + a |= LIT64( 0x0008000000000000 ); + b |= LIT64( 0x0008000000000000 ); + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); + if ( aIsNaN ) { + return ( aIsSignalingNaN & bIsNaN ) ? b : a; + } + else { + return b; + } + +} + +#ifdef FLOATX80 + +/* +------------------------------------------------------------------------------- +The pattern for a default generated extended double-precision NaN. The +`high' and `low' values hold the most- and least-significant bits, +respectively. +------------------------------------------------------------------------------- +*/ +#define floatx80_default_nan_high 0xFFFF +#define floatx80_default_nan_low LIT64( 0xFFFFFFFFFFFFFFFF ) + +/* +------------------------------------------------------------------------------- +Returns 1 if the extended double-precision floating-point value `a' is a +NaN; otherwise returns 0. +------------------------------------------------------------------------------- +*/ +flag floatx80_is_nan( floatx80 a ) +{ + + return ( ( a.high & 0x7FFF ) == 0x7FFF ) && (bits64) ( a.low<<1 ); + +} + +/* +------------------------------------------------------------------------------- +Returns 1 if the extended double-precision floating-point value `a' is a +signaling NaN; otherwise returns 0. +------------------------------------------------------------------------------- +*/ +flag floatx80_is_signaling_nan( floatx80 a ) +{ + bits64 aLow; + + aLow = a.low & ~ LIT64( 0x4000000000000000 ); + return + ( ( a.high & 0x7FFF ) == 0x7FFF ) + && (bits64) ( aLow<<1 ) + && ( a.low == aLow ); + +} + +/* +------------------------------------------------------------------------------- +Returns the result of converting the extended double-precision floating- +point NaN `a' to the canonical NaN format. If `a' is a signaling NaN, the +invalid exception is raised. +------------------------------------------------------------------------------- +*/ +static commonNaNT floatx80ToCommonNaN( floatx80 a ) +{ + commonNaNT z; + + if ( floatx80_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); + z.sign = a.high>>15; + z.low = 0; + z.high = a.low<<1; + return z; + +} + +/* +------------------------------------------------------------------------------- +Returns the result of converting the canonical NaN `a' to the extended +double-precision floating-point format. +------------------------------------------------------------------------------- +*/ +static floatx80 commonNaNToFloatx80( commonNaNT a ) +{ + floatx80 z; + + z.low = LIT64( 0xC000000000000000 ) | ( a.high>>1 ); + z.high = ( ( (bits16) a.sign )<<15 ) | 0x7FFF; + return z; + +} + +/* +------------------------------------------------------------------------------- +Takes two extended double-precision floating-point values `a' and `b', one +of which is a NaN, and returns the appropriate NaN result. If either `a' or +`b' is a signaling NaN, the invalid exception is raised. +------------------------------------------------------------------------------- +*/ +static floatx80 propagateFloatx80NaN( floatx80 a, floatx80 b ) +{ + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; + + aIsNaN = floatx80_is_nan( a ); + aIsSignalingNaN = floatx80_is_signaling_nan( a ); + bIsNaN = floatx80_is_nan( b ); + bIsSignalingNaN = floatx80_is_signaling_nan( b ); + a.low |= LIT64( 0xC000000000000000 ); + b.low |= LIT64( 0xC000000000000000 ); + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); + if ( aIsNaN ) { + return ( aIsSignalingNaN & bIsNaN ) ? b : a; + } + else { + return b; + } + +} + +#endif + +#ifdef FLOAT128 + +/* +------------------------------------------------------------------------------- +The pattern for a default generated quadruple-precision NaN. The `high' and +`low' values hold the most- and least-significant bits, respectively. +------------------------------------------------------------------------------- +*/ +#define float128_default_nan_high LIT64( 0xFFFFFFFFFFFFFFFF ) +#define float128_default_nan_low LIT64( 0xFFFFFFFFFFFFFFFF ) + +/* +------------------------------------------------------------------------------- +Returns 1 if the quadruple-precision floating-point value `a' is a NaN; +otherwise returns 0. +------------------------------------------------------------------------------- +*/ +flag float128_is_nan( float128 a ) +{ + + return + ( LIT64( 0xFFFE000000000000 ) <= (bits64) ( a.high<<1 ) ) + && ( a.low || ( a.high & LIT64( 0x0000FFFFFFFFFFFF ) ) ); + +} + +/* +------------------------------------------------------------------------------- +Returns 1 if the quadruple-precision floating-point value `a' is a +signaling NaN; otherwise returns 0. +------------------------------------------------------------------------------- +*/ +flag float128_is_signaling_nan( float128 a ) +{ + + return + ( ( ( a.high>>47 ) & 0xFFFF ) == 0xFFFE ) + && ( a.low || ( a.high & LIT64( 0x00007FFFFFFFFFFF ) ) ); + +} + +/* +------------------------------------------------------------------------------- +Returns the result of converting the quadruple-precision floating-point NaN +`a' to the canonical NaN format. If `a' is a signaling NaN, the invalid +exception is raised. +------------------------------------------------------------------------------- +*/ +static commonNaNT float128ToCommonNaN( float128 a ) +{ + commonNaNT z; + + if ( float128_is_signaling_nan( a ) ) float_raise( float_flag_invalid ); + z.sign = a.high>>63; + shortShift128Left( a.high, a.low, 16, &z.high, &z.low ); + return z; + +} + +/* +------------------------------------------------------------------------------- +Returns the result of converting the canonical NaN `a' to the quadruple- +precision floating-point format. +------------------------------------------------------------------------------- +*/ +static float128 commonNaNToFloat128( commonNaNT a ) +{ + float128 z; + + shift128Right( a.high, a.low, 16, &z.high, &z.low ); + z.high |= ( ( (bits64) a.sign )<<63 ) | LIT64( 0x7FFF800000000000 ); + return z; + +} + +/* +------------------------------------------------------------------------------- +Takes two quadruple-precision floating-point values `a' and `b', one of +which is a NaN, and returns the appropriate NaN result. If either `a' or +`b' is a signaling NaN, the invalid exception is raised. +------------------------------------------------------------------------------- +*/ +static float128 propagateFloat128NaN( float128 a, float128 b ) +{ + flag aIsNaN, aIsSignalingNaN, bIsNaN, bIsSignalingNaN; + + aIsNaN = float128_is_nan( a ); + aIsSignalingNaN = float128_is_signaling_nan( a ); + bIsNaN = float128_is_nan( b ); + bIsSignalingNaN = float128_is_signaling_nan( b ); + a.high |= LIT64( 0x0000800000000000 ); + b.high |= LIT64( 0x0000800000000000 ); + if ( aIsSignalingNaN | bIsSignalingNaN ) float_raise( float_flag_invalid ); + if ( aIsNaN ) { + return ( aIsSignalingNaN & bIsNaN ) ? b : a; + } + else { + return b; + } + +} + +#endif + diff --git a/lib/libc/softfloat/templates/softfloat.h b/lib/libc/softfloat/templates/softfloat.h index 070aab231c60..fd83aa43f133 100644 --- a/lib/libc/softfloat/templates/softfloat.h +++ b/lib/libc/softfloat/templates/softfloat.h @@ -1,291 +1,291 @@ -/* $FreeBSD$ */ - -/* -=============================================================================== - -This C header file is part of the SoftFloat IEC/IEEE Floating-point -Arithmetic Package, Release 2a. - -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://HTTP.CS.Berkeley.EDU/~jhauser/ -arithmetic/SoftFloat.html'. - -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 four paragraphs for those parts of -this code that are retained. - -=============================================================================== -*/ - -/* -------------------------------------------------------------------------------- -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. The same applies to -the `FLOAT128' macro and the quadruple-precision format `float128'. -------------------------------------------------------------------------------- -*/ -#define FLOATX80 -#define FLOAT128 - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point types. -------------------------------------------------------------------------------- -*/ -typedef !!!bits32 float32; -typedef !!!bits64 float64; -#ifdef FLOATX80 -typedef struct { - !!!bits16 high; - !!!bits64 low; -} floatx80; -#endif -#ifdef FLOAT128 -typedef struct { - !!!bits64 high, low; -} float128; -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE floating-point underflow tininess-detection mode. -------------------------------------------------------------------------------- -*/ -extern !!!int8 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. -------------------------------------------------------------------------------- -*/ -extern !!!int8 float_exception_flags; -enum { - float_flag_inexact = 1, - float_flag_underflow = 2, - float_flag_overflow = 4, - float_flag_divbyzero = 8, - float_flag_invalid = 16 -}; - -/* -------------------------------------------------------------------------------- -Routine to raise any or all of the software IEC/IEEE floating-point -exception flags. -------------------------------------------------------------------------------- -*/ -void float_raise( !!!int8 ); - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE integer-to-floating-point conversion routines. -------------------------------------------------------------------------------- -*/ -float32 int32_to_float32( !!!int32 ); -float64 int32_to_float64( !!!int32 ); -#ifdef FLOATX80 -floatx80 int32_to_floatx80( !!!int32 ); -#endif -#ifdef FLOAT128 -float128 int32_to_float128( !!!int32 ); -#endif -float32 int64_to_float32( !!!int64 ); -float64 int64_to_float64( !!!int64 ); -#ifdef FLOATX80 -floatx80 int64_to_floatx80( !!!int64 ); -#endif -#ifdef FLOAT128 -float128 int64_to_float128( !!!int64 ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE single-precision conversion routines. -------------------------------------------------------------------------------- -*/ -!!!int32 float32_to_int32( float32 ); -!!!int32 float32_to_int32_round_to_zero( float32 ); -!!!int64 float32_to_int64( float32 ); -!!!int64 float32_to_int64_round_to_zero( float32 ); -float64 float32_to_float64( float32 ); -#ifdef FLOATX80 -floatx80 float32_to_floatx80( float32 ); -#endif -#ifdef FLOAT128 -float128 float32_to_float128( float32 ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE single-precision operations. -------------------------------------------------------------------------------- -*/ -float32 float32_round_to_int( float32 ); -float32 float32_add( float32, float32 ); -float32 float32_sub( float32, float32 ); -float32 float32_mul( float32, float32 ); -float32 float32_div( float32, float32 ); -float32 float32_rem( float32, float32 ); -float32 float32_sqrt( float32 ); -!!!flag float32_eq( float32, float32 ); -!!!flag float32_le( float32, float32 ); -!!!flag float32_lt( float32, float32 ); -!!!flag float32_eq_signaling( float32, float32 ); -!!!flag float32_le_quiet( float32, float32 ); -!!!flag float32_lt_quiet( float32, float32 ); -!!!flag float32_is_signaling_nan( float32 ); - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE double-precision conversion routines. -------------------------------------------------------------------------------- -*/ -!!!int32 float64_to_int32( float64 ); -!!!int32 float64_to_int32_round_to_zero( float64 ); -!!!int64 float64_to_int64( float64 ); -!!!int64 float64_to_int64_round_to_zero( float64 ); -float32 float64_to_float32( float64 ); -#ifdef FLOATX80 -floatx80 float64_to_floatx80( float64 ); -#endif -#ifdef FLOAT128 -float128 float64_to_float128( float64 ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE double-precision operations. -------------------------------------------------------------------------------- -*/ -float64 float64_round_to_int( float64 ); -float64 float64_add( float64, float64 ); -float64 float64_sub( float64, float64 ); -float64 float64_mul( float64, float64 ); -float64 float64_div( float64, float64 ); -float64 float64_rem( float64, float64 ); -float64 float64_sqrt( float64 ); -!!!flag float64_eq( float64, float64 ); -!!!flag float64_le( float64, float64 ); -!!!flag float64_lt( float64, float64 ); -!!!flag float64_eq_signaling( float64, float64 ); -!!!flag float64_le_quiet( float64, float64 ); -!!!flag float64_lt_quiet( float64, float64 ); -!!!flag float64_is_signaling_nan( float64 ); - -#ifdef FLOATX80 - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE extended double-precision conversion routines. -------------------------------------------------------------------------------- -*/ -!!!int32 floatx80_to_int32( floatx80 ); -!!!int32 floatx80_to_int32_round_to_zero( floatx80 ); -!!!int64 floatx80_to_int64( floatx80 ); -!!!int64 floatx80_to_int64_round_to_zero( floatx80 ); -float32 floatx80_to_float32( floatx80 ); -float64 floatx80_to_float64( floatx80 ); -#ifdef FLOAT128 -float128 floatx80_to_float128( floatx80 ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE extended double-precision rounding precision. Valid -values are 32, 64, and 80. -------------------------------------------------------------------------------- -*/ -extern !!!int8 floatx80_rounding_precision; - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE extended double-precision operations. -------------------------------------------------------------------------------- -*/ -floatx80 floatx80_round_to_int( floatx80 ); -floatx80 floatx80_add( floatx80, floatx80 ); -floatx80 floatx80_sub( floatx80, floatx80 ); -floatx80 floatx80_mul( floatx80, floatx80 ); -floatx80 floatx80_div( floatx80, floatx80 ); -floatx80 floatx80_rem( floatx80, floatx80 ); -floatx80 floatx80_sqrt( floatx80 ); -!!!flag floatx80_eq( floatx80, floatx80 ); -!!!flag floatx80_le( floatx80, floatx80 ); -!!!flag floatx80_lt( floatx80, floatx80 ); -!!!flag floatx80_eq_signaling( floatx80, floatx80 ); -!!!flag floatx80_le_quiet( floatx80, floatx80 ); -!!!flag floatx80_lt_quiet( floatx80, floatx80 ); -!!!flag floatx80_is_signaling_nan( floatx80 ); - -#endif - -#ifdef FLOAT128 - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE quadruple-precision conversion routines. -------------------------------------------------------------------------------- -*/ -!!!int32 float128_to_int32( float128 ); -!!!int32 float128_to_int32_round_to_zero( float128 ); -!!!int64 float128_to_int64( float128 ); -!!!int64 float128_to_int64_round_to_zero( float128 ); -float32 float128_to_float32( float128 ); -float64 float128_to_float64( float128 ); -#ifdef FLOATX80 -floatx80 float128_to_floatx80( float128 ); -#endif - -/* -------------------------------------------------------------------------------- -Software IEC/IEEE quadruple-precision operations. -------------------------------------------------------------------------------- -*/ -float128 float128_round_to_int( float128 ); -float128 float128_add( float128, float128 ); -float128 float128_sub( float128, float128 ); -float128 float128_mul( float128, float128 ); -float128 float128_div( float128, float128 ); -float128 float128_rem( float128, float128 ); -float128 float128_sqrt( float128 ); -!!!flag float128_eq( float128, float128 ); -!!!flag float128_le( float128, float128 ); -!!!flag float128_lt( float128, float128 ); -!!!flag float128_eq_signaling( float128, float128 ); -!!!flag float128_le_quiet( float128, float128 ); -!!!flag float128_lt_quiet( float128, float128 ); -!!!flag float128_is_signaling_nan( float128 ); - -#endif - +/* $FreeBSD$ */ + +/* +=============================================================================== + +This C header file is part of the SoftFloat IEC/IEEE Floating-point +Arithmetic Package, Release 2a. + +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://HTTP.CS.Berkeley.EDU/~jhauser/ +arithmetic/SoftFloat.html'. + +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 four paragraphs for those parts of +this code that are retained. + +=============================================================================== +*/ + +/* +------------------------------------------------------------------------------- +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. The same applies to +the `FLOAT128' macro and the quadruple-precision format `float128'. +------------------------------------------------------------------------------- +*/ +#define FLOATX80 +#define FLOAT128 + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE floating-point types. +------------------------------------------------------------------------------- +*/ +typedef !!!bits32 float32; +typedef !!!bits64 float64; +#ifdef FLOATX80 +typedef struct { + !!!bits16 high; + !!!bits64 low; +} floatx80; +#endif +#ifdef FLOAT128 +typedef struct { + !!!bits64 high, low; +} float128; +#endif + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE floating-point underflow tininess-detection mode. +------------------------------------------------------------------------------- +*/ +extern !!!int8 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. +------------------------------------------------------------------------------- +*/ +extern !!!int8 float_exception_flags; +enum { + float_flag_inexact = 1, + float_flag_underflow = 2, + float_flag_overflow = 4, + float_flag_divbyzero = 8, + float_flag_invalid = 16 +}; + +/* +------------------------------------------------------------------------------- +Routine to raise any or all of the software IEC/IEEE floating-point +exception flags. +------------------------------------------------------------------------------- +*/ +void float_raise( !!!int8 ); + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE integer-to-floating-point conversion routines. +------------------------------------------------------------------------------- +*/ +float32 int32_to_float32( !!!int32 ); +float64 int32_to_float64( !!!int32 ); +#ifdef FLOATX80 +floatx80 int32_to_floatx80( !!!int32 ); +#endif +#ifdef FLOAT128 +float128 int32_to_float128( !!!int32 ); +#endif +float32 int64_to_float32( !!!int64 ); +float64 int64_to_float64( !!!int64 ); +#ifdef FLOATX80 +floatx80 int64_to_floatx80( !!!int64 ); +#endif +#ifdef FLOAT128 +float128 int64_to_float128( !!!int64 ); +#endif + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE single-precision conversion routines. +------------------------------------------------------------------------------- +*/ +!!!int32 float32_to_int32( float32 ); +!!!int32 float32_to_int32_round_to_zero( float32 ); +!!!int64 float32_to_int64( float32 ); +!!!int64 float32_to_int64_round_to_zero( float32 ); +float64 float32_to_float64( float32 ); +#ifdef FLOATX80 +floatx80 float32_to_floatx80( float32 ); +#endif +#ifdef FLOAT128 +float128 float32_to_float128( float32 ); +#endif + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE single-precision operations. +------------------------------------------------------------------------------- +*/ +float32 float32_round_to_int( float32 ); +float32 float32_add( float32, float32 ); +float32 float32_sub( float32, float32 ); +float32 float32_mul( float32, float32 ); +float32 float32_div( float32, float32 ); +float32 float32_rem( float32, float32 ); +float32 float32_sqrt( float32 ); +!!!flag float32_eq( float32, float32 ); +!!!flag float32_le( float32, float32 ); +!!!flag float32_lt( float32, float32 ); +!!!flag float32_eq_signaling( float32, float32 ); +!!!flag float32_le_quiet( float32, float32 ); +!!!flag float32_lt_quiet( float32, float32 ); +!!!flag float32_is_signaling_nan( float32 ); + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE double-precision conversion routines. +------------------------------------------------------------------------------- +*/ +!!!int32 float64_to_int32( float64 ); +!!!int32 float64_to_int32_round_to_zero( float64 ); +!!!int64 float64_to_int64( float64 ); +!!!int64 float64_to_int64_round_to_zero( float64 ); +float32 float64_to_float32( float64 ); +#ifdef FLOATX80 +floatx80 float64_to_floatx80( float64 ); +#endif +#ifdef FLOAT128 +float128 float64_to_float128( float64 ); +#endif + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE double-precision operations. +------------------------------------------------------------------------------- +*/ +float64 float64_round_to_int( float64 ); +float64 float64_add( float64, float64 ); +float64 float64_sub( float64, float64 ); +float64 float64_mul( float64, float64 ); +float64 float64_div( float64, float64 ); +float64 float64_rem( float64, float64 ); +float64 float64_sqrt( float64 ); +!!!flag float64_eq( float64, float64 ); +!!!flag float64_le( float64, float64 ); +!!!flag float64_lt( float64, float64 ); +!!!flag float64_eq_signaling( float64, float64 ); +!!!flag float64_le_quiet( float64, float64 ); +!!!flag float64_lt_quiet( float64, float64 ); +!!!flag float64_is_signaling_nan( float64 ); + +#ifdef FLOATX80 + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE extended double-precision conversion routines. +------------------------------------------------------------------------------- +*/ +!!!int32 floatx80_to_int32( floatx80 ); +!!!int32 floatx80_to_int32_round_to_zero( floatx80 ); +!!!int64 floatx80_to_int64( floatx80 ); +!!!int64 floatx80_to_int64_round_to_zero( floatx80 ); +float32 floatx80_to_float32( floatx80 ); +float64 floatx80_to_float64( floatx80 ); +#ifdef FLOAT128 +float128 floatx80_to_float128( floatx80 ); +#endif + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE extended double-precision rounding precision. Valid +values are 32, 64, and 80. +------------------------------------------------------------------------------- +*/ +extern !!!int8 floatx80_rounding_precision; + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE extended double-precision operations. +------------------------------------------------------------------------------- +*/ +floatx80 floatx80_round_to_int( floatx80 ); +floatx80 floatx80_add( floatx80, floatx80 ); +floatx80 floatx80_sub( floatx80, floatx80 ); +floatx80 floatx80_mul( floatx80, floatx80 ); +floatx80 floatx80_div( floatx80, floatx80 ); +floatx80 floatx80_rem( floatx80, floatx80 ); +floatx80 floatx80_sqrt( floatx80 ); +!!!flag floatx80_eq( floatx80, floatx80 ); +!!!flag floatx80_le( floatx80, floatx80 ); +!!!flag floatx80_lt( floatx80, floatx80 ); +!!!flag floatx80_eq_signaling( floatx80, floatx80 ); +!!!flag floatx80_le_quiet( floatx80, floatx80 ); +!!!flag floatx80_lt_quiet( floatx80, floatx80 ); +!!!flag floatx80_is_signaling_nan( floatx80 ); + +#endif + +#ifdef FLOAT128 + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE quadruple-precision conversion routines. +------------------------------------------------------------------------------- +*/ +!!!int32 float128_to_int32( float128 ); +!!!int32 float128_to_int32_round_to_zero( float128 ); +!!!int64 float128_to_int64( float128 ); +!!!int64 float128_to_int64_round_to_zero( float128 ); +float32 float128_to_float32( float128 ); +float64 float128_to_float64( float128 ); +#ifdef FLOATX80 +floatx80 float128_to_floatx80( float128 ); +#endif + +/* +------------------------------------------------------------------------------- +Software IEC/IEEE quadruple-precision operations. +------------------------------------------------------------------------------- +*/ +float128 float128_round_to_int( float128 ); +float128 float128_add( float128, float128 ); +float128 float128_sub( float128, float128 ); +float128 float128_mul( float128, float128 ); +float128 float128_div( float128, float128 ); +float128 float128_rem( float128, float128 ); +float128 float128_sqrt( float128 ); +!!!flag float128_eq( float128, float128 ); +!!!flag float128_le( float128, float128 ); +!!!flag float128_lt( float128, float128 ); +!!!flag float128_eq_signaling( float128, float128 ); +!!!flag float128_le_quiet( float128, float128 ); +!!!flag float128_lt_quiet( float128, float128 ); +!!!flag float128_is_signaling_nan( float128 ); + +#endif +