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-rwxr-xr-xsoftfloat/8086/OLD-specialize.c40
-rwxr-xr-xsoftfloat/8086/OLD-specialize.h379
-rwxr-xr-xsoftfloat/8086/platform.h38
-rwxr-xr-xsoftfloat/8086/s_commonNaNToF32UI.c17
-rwxr-xr-xsoftfloat/8086/s_commonNaNToF64UI.c19
-rwxr-xr-xsoftfloat/8086/s_f32UIToCommonNaN.c25
-rwxr-xr-xsoftfloat/8086/s_f64UIToCommonNaN.c25
-rwxr-xr-xsoftfloat/8086/s_isSigNaNF32UI.c13
-rwxr-xr-xsoftfloat/8086/s_isSigNaNF64UI.c15
-rwxr-xr-xsoftfloat/8086/s_propagateNaNF32UI.c55
-rwxr-xr-xsoftfloat/8086/s_propagateNaNF64UI.c55
-rwxr-xr-xsoftfloat/8086/softfloat_raiseFlags.c51
-rwxr-xr-xsoftfloat/8086/softfloat_types.h16
-rwxr-xr-xsoftfloat/8086/specialize.h113
14 files changed, 861 insertions, 0 deletions
diff --git a/softfloat/8086/OLD-specialize.c b/softfloat/8086/OLD-specialize.c
new file mode 100755
index 0000000..ffb306d
--- /dev/null
+++ b/softfloat/8086/OLD-specialize.c
@@ -0,0 +1,40 @@
+
+/*============================================================================
+
+*** FIX.
+
+This C source fragment is part of the SoftFloat IEC/IEEE Floating-point
+Arithmetic Package, Release 2b.
+
+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.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 ALL LOSSES,
+COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
+EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
+INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
+OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
+
+Derivative works are acceptable, even for commercial purposes, so long as
+(1) the source code for the derivative work includes prominent notice that
+the work is derivative, and (2) the source code includes prominent notice with
+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.)
+*----------------------------------------------------------------------------*/
+bool float_detectTininess = float_tininess_afterRounding;
+
diff --git a/softfloat/8086/OLD-specialize.h b/softfloat/8086/OLD-specialize.h
new file mode 100755
index 0000000..9e4461c
--- /dev/null
+++ b/softfloat/8086/OLD-specialize.h
@@ -0,0 +1,379 @@
+
+/*============================================================================
+
+*** FIX.
+
+This C source fragment is part of the SoftFloat IEC/IEEE Floating-point
+Arithmetic Package, Release 2b.
+
+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.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 ALL LOSSES,
+COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
+EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
+INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
+OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
+
+Derivative works are acceptable, even for commercial purposes, so long as
+(1) the source code for the derivative work includes prominent notice that
+the work is derivative, and (2) the source code includes prominent notice with
+these four paragraphs for those parts of this code that are retained.
+
+=============================================================================*/
+
+/*----------------------------------------------------------------------------
+| Internal canonical NaN format.
+*----------------------------------------------------------------------------*/
+*** COMMON
+typedef struct {
+ flag sign;
+ uint128_t bits;
+} commonNaNT;
+
+/*----------------------------------------------------------------------------
+| The pattern for a default generated single-precision NaN.
+*----------------------------------------------------------------------------*/
+#define float32Bits_defaultNaN 0xFFC00000
+
+/*----------------------------------------------------------------------------
+| Returns 1 if the single-precision floating-point value `a' is a NaN;
+| otherwise, returns 0.
+*----------------------------------------------------------------------------*/
+*** COMMON
+#define softfloat_isNaNFloat32Bits( a ) ( 0xFF000000 < (uint32_t) ( a )<<1 )
+
+/*----------------------------------------------------------------------------
+| Returns 1 if the single-precision floating-point value `a' is a signaling
+| NaN; otherwise, returns 0.
+*----------------------------------------------------------------------------*/
+inline bool softfloat_isSigNaNFloat32Bits( uint32_t a )
+ { return ( ( a>>22 & 0x1FF ) == 0x1FE ) && ( a & 0x003FFFFF ); }
+
+/*----------------------------------------------------------------------------
+*----------------------------------------------------------------------------*/
+commonNaNT softfloat_NaNFromFloat32Bits( uint32_t );
+uint32_t softfloat_float32BitsFromNaN( commonNaNT );
+uint32_t softfloat_propNaNFloat32Bits( uint32_t, uint32_t );
+
+/*----------------------------------------------------------------------------
+| The pattern for a default generated double-precision NaN.
+*----------------------------------------------------------------------------*/
+#define float64Bits_defaultNaN 0xFFF8000000000000
+
+/*----------------------------------------------------------------------------
+| Returns 1 if the double-precision floating-point value `a' is a NaN;
+| otherwise, returns 0.
+*----------------------------------------------------------------------------*/
+*** COMMON
+#define softfloat_isNaNFloat64Bits( a ) ( 0xFFE0000000000000 < (uint64_t) ( 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 ( aIsSignalingNaN ) {
+ if ( bIsSignalingNaN ) goto returnLargerSignificand;
+ return bIsNaN ? b : a;
+ }
+ else if ( aIsNaN ) {
+ if ( bIsSignalingNaN | ! bIsNaN ) return a;
+ returnLargerSignificand:
+ if ( (bits64) ( a<<1 ) < (bits64) ( b<<1 ) ) return b;
+ if ( (bits64) ( b<<1 ) < (bits64) ( a<<1 ) ) return a;
+ return ( a < b ) ? a : b;
+ }
+ 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( 0xC000000000000000 )
+
+/*----------------------------------------------------------------------------
+| 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 ( aIsSignalingNaN ) {
+ if ( bIsSignalingNaN ) goto returnLargerSignificand;
+ return bIsNaN ? b : a;
+ }
+ else if ( aIsNaN ) {
+ if ( bIsSignalingNaN | ! bIsNaN ) return a;
+ returnLargerSignificand:
+ if ( a.low < b.low ) return b;
+ if ( b.low < a.low ) return a;
+ return ( a.high < b.high ) ? a : b;
+ }
+ 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( 0xFFFF800000000000 )
+#define float128_default_nan_low LIT64( 0x0000000000000000 )
+
+/*----------------------------------------------------------------------------
+| 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 ( aIsSignalingNaN ) {
+ if ( bIsSignalingNaN ) goto returnLargerSignificand;
+ return bIsNaN ? b : a;
+ }
+ else if ( aIsNaN ) {
+ if ( bIsSignalingNaN | ! bIsNaN ) return a;
+ returnLargerSignificand:
+ if ( lt128( a.high<<1, a.low, b.high<<1, b.low ) ) return b;
+ if ( lt128( b.high<<1, b.low, a.high<<1, a.low ) ) return a;
+ return ( a.high < b.high ) ? a : b;
+ }
+ else {
+ return b;
+ }
+
+}
+
+#endif
+
diff --git a/softfloat/8086/platform.h b/softfloat/8086/platform.h
new file mode 100755
index 0000000..9355edf
--- /dev/null
+++ b/softfloat/8086/platform.h
@@ -0,0 +1,38 @@
+
+/*============================================================================
+
+*** FIX.
+
+This C source fragment is part of the SoftFloat IEC/IEEE Floating-point
+Arithmetic Package, Release 2b.
+
+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.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 ALL LOSSES,
+COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
+EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
+INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
+OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
+
+Derivative works are acceptable, even for commercial purposes, so long as
+(1) the source code for the derivative work includes prominent notice that
+the work is derivative, and (2) the source code includes prominent notice with
+these four paragraphs for those parts of this code that are retained.
+
+=============================================================================*/
+
+/*----------------------------------------------------------------------------
+*----------------------------------------------------------------------------*/
+#define LITTLEENDIAN
+
diff --git a/softfloat/8086/s_commonNaNToF32UI.c b/softfloat/8086/s_commonNaNToF32UI.c
new file mode 100755
index 0000000..3b96c41
--- /dev/null
+++ b/softfloat/8086/s_commonNaNToF32UI.c
@@ -0,0 +1,17 @@
+
+#include <stdint.h>
+#include "platform.h"
+#include "specialize.h"
+
+/*----------------------------------------------------------------------------
+| Returns the result of converting the canonical NaN `a' to the single-
+| precision floating-point format.
+*----------------------------------------------------------------------------*/
+
+uint_fast32_t softfloat_commonNaNToF32UI( struct commonNaN a )
+{
+
+ return (uint_fast32_t) a.sign<<31 | 0x7FC00000 | a.v64>>41;
+
+}
+
diff --git a/softfloat/8086/s_commonNaNToF64UI.c b/softfloat/8086/s_commonNaNToF64UI.c
new file mode 100755
index 0000000..474ceee
--- /dev/null
+++ b/softfloat/8086/s_commonNaNToF64UI.c
@@ -0,0 +1,19 @@
+
+#include <stdint.h>
+#include "platform.h"
+#include "specialize.h"
+
+/*----------------------------------------------------------------------------
+| Returns the result of converting the canonical NaN `a' to the double-
+| precision floating-point format.
+*----------------------------------------------------------------------------*/
+
+uint_fast64_t softfloat_commonNaNToF64UI( struct commonNaN a )
+{
+
+ return
+ (uint_fast64_t) a.sign<<63 | UINT64_C( 0x7FF8000000000000 )
+ | a.v64>>12;
+
+}
+
diff --git a/softfloat/8086/s_f32UIToCommonNaN.c b/softfloat/8086/s_f32UIToCommonNaN.c
new file mode 100755
index 0000000..067e8da
--- /dev/null
+++ b/softfloat/8086/s_f32UIToCommonNaN.c
@@ -0,0 +1,25 @@
+
+#include <stdint.h>
+#include "platform.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| 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.
+*----------------------------------------------------------------------------*/
+struct commonNaN softfloat_f32UIToCommonNaN( uint_fast32_t uiA )
+{
+ struct commonNaN z;
+
+ if ( softfloat_isSigNaNF32UI( uiA ) ) {
+ softfloat_raiseFlags( softfloat_flag_invalid );
+ }
+ z.sign = uiA>>31;
+ z.v64 = (uint_fast64_t) uiA<<41;
+ z.v0 = 0;
+ return z;
+
+}
+
diff --git a/softfloat/8086/s_f64UIToCommonNaN.c b/softfloat/8086/s_f64UIToCommonNaN.c
new file mode 100755
index 0000000..f933ded
--- /dev/null
+++ b/softfloat/8086/s_f64UIToCommonNaN.c
@@ -0,0 +1,25 @@
+
+#include <stdint.h>
+#include "platform.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| 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.
+*----------------------------------------------------------------------------*/
+struct commonNaN softfloat_f64UIToCommonNaN( uint_fast64_t uiA )
+{
+ struct commonNaN z;
+
+ if ( softfloat_isSigNaNF64UI( uiA ) ) {
+ softfloat_raiseFlags( softfloat_flag_invalid );
+ }
+ z.sign = uiA>>63;
+ z.v64 = uiA<<12;
+ z.v0 = 0;
+ return z;
+
+}
+
diff --git a/softfloat/8086/s_isSigNaNF32UI.c b/softfloat/8086/s_isSigNaNF32UI.c
new file mode 100755
index 0000000..0a9c33f
--- /dev/null
+++ b/softfloat/8086/s_isSigNaNF32UI.c
@@ -0,0 +1,13 @@
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "specialize.h"
+
+bool softfloat_isSigNaNF32UI( uint_fast32_t ui )
+{
+
+ return ( ( ui>>22 & 0x1FF ) == 0x1FE ) && ( ui & 0x003FFFFF );
+
+}
+
diff --git a/softfloat/8086/s_isSigNaNF64UI.c b/softfloat/8086/s_isSigNaNF64UI.c
new file mode 100755
index 0000000..d255213
--- /dev/null
+++ b/softfloat/8086/s_isSigNaNF64UI.c
@@ -0,0 +1,15 @@
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "specialize.h"
+
+bool softfloat_isSigNaNF64UI( uint_fast64_t ui )
+{
+
+ return
+ ( ( ui>>51 & 0xFFF ) == 0xFFE )
+ && ( ui & UINT64_C( 0x0007FFFFFFFFFFFF ) );
+
+}
+
diff --git a/softfloat/8086/s_propagateNaNF32UI.c b/softfloat/8086/s_propagateNaNF32UI.c
new file mode 100755
index 0000000..07774e8
--- /dev/null
+++ b/softfloat/8086/s_propagateNaNF32UI.c
@@ -0,0 +1,55 @@
+
+/*** UPDATE COMMENTS. ***/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "internals.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| 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.
+*----------------------------------------------------------------------------*/
+
+uint_fast32_t
+ softfloat_propagateNaNF32UI( uint_fast32_t uiA, uint_fast32_t uiB )
+{
+ bool isNaNA, isSigNaNA, isNaNB, isSigNaNB;
+ uint_fast32_t uiMagA, uiMagB;
+
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ isNaNA = isNaNF32UI( uiA );
+ isSigNaNA = softfloat_isSigNaNF32UI( uiA );
+ isNaNB = isNaNF32UI( uiB );
+ isSigNaNB = softfloat_isSigNaNF32UI( uiB );
+ /*------------------------------------------------------------------------
+ | Make NaNs non-signaling.
+ *------------------------------------------------------------------------*/
+ uiA |= 0x00400000;
+ uiB |= 0x00400000;
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ if ( isSigNaNA | isSigNaNB ) {
+ softfloat_raiseFlags( softfloat_flag_invalid );
+ }
+ if ( isSigNaNA ) {
+ if ( isSigNaNB ) goto returnLargerSignificand;
+ return isNaNB ? uiB : uiA;
+ } else if ( isNaNA ) {
+ if ( isSigNaNB || ! isNaNB ) return uiA;
+ returnLargerSignificand:
+ uiMagA = uiA<<1;
+ uiMagB = uiB<<1;
+ if ( uiMagA < uiMagB ) return uiB;
+ if ( uiMagB < uiMagA ) return uiA;
+ return ( uiA < uiB ) ? uiA : uiB;
+ } else {
+ return uiB;
+ }
+
+}
+
diff --git a/softfloat/8086/s_propagateNaNF64UI.c b/softfloat/8086/s_propagateNaNF64UI.c
new file mode 100755
index 0000000..0ff6446
--- /dev/null
+++ b/softfloat/8086/s_propagateNaNF64UI.c
@@ -0,0 +1,55 @@
+
+/*** UPDATE COMMENTS. ***/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "internals.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| 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.
+*----------------------------------------------------------------------------*/
+
+uint_fast64_t
+ softfloat_propagateNaNF64UI( uint_fast64_t uiA, uint_fast64_t uiB )
+{
+ bool isNaNA, isSigNaNA, isNaNB, isSigNaNB;
+ uint_fast64_t uiMagA, uiMagB;
+
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ isNaNA = isNaNF64UI( uiA );
+ isSigNaNA = softfloat_isSigNaNF64UI( uiA );
+ isNaNB = isNaNF64UI( uiB );
+ isSigNaNB = softfloat_isSigNaNF64UI( uiB );
+ /*------------------------------------------------------------------------
+ | Make NaNs non-signaling.
+ *------------------------------------------------------------------------*/
+ uiA |= UINT64_C( 0x0008000000000000 );
+ uiB |= UINT64_C( 0x0008000000000000 );
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ if ( isSigNaNA | isSigNaNB ) {
+ softfloat_raiseFlags( softfloat_flag_invalid );
+ }
+ if ( isSigNaNA ) {
+ if ( isSigNaNB ) goto returnLargerSignificand;
+ return isNaNB ? uiB : uiA;
+ } else if ( isNaNA ) {
+ if ( isSigNaNB || ! isNaNB ) return uiA;
+ returnLargerSignificand:
+ uiMagA = uiA & UINT64_C( 0x7FFFFFFFFFFFFFFF );
+ uiMagB = uiB & UINT64_C( 0x7FFFFFFFFFFFFFFF );
+ if ( uiMagA < uiMagB ) return uiB;
+ if ( uiMagB < uiMagA ) return uiA;
+ return ( uiA < uiB ) ? uiA : uiB;
+ } else {
+ return uiB;
+ }
+
+}
+
diff --git a/softfloat/8086/softfloat_raiseFlags.c b/softfloat/8086/softfloat_raiseFlags.c
new file mode 100755
index 0000000..c0c0dc8
--- /dev/null
+++ b/softfloat/8086/softfloat_raiseFlags.c
@@ -0,0 +1,51 @@
+
+/*============================================================================
+
+*** FIX.
+
+This C source fragment is part of the SoftFloat IEC/IEEE Floating-point
+Arithmetic Package, Release 2b.
+
+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.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 ALL LOSSES,
+COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
+EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
+INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
+OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
+
+Derivative works are acceptable, even for commercial purposes, so long as
+(1) the source code for the derivative work includes prominent notice that
+the work is derivative, and (2) the source code includes prominent notice with
+these four paragraphs for those parts of this code that are retained.
+
+=============================================================================*/
+
+#include "platform.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| 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 softfloat_raiseFlags( int_fast8_t flags )
+{
+
+ softfloat_exceptionFlags |= flags;
+
+}
+
diff --git a/softfloat/8086/softfloat_types.h b/softfloat/8086/softfloat_types.h
new file mode 100755
index 0000000..b5c1828
--- /dev/null
+++ b/softfloat/8086/softfloat_types.h
@@ -0,0 +1,16 @@
+
+#ifndef softfloat_types_h
+#define softfloat_types_h
+
+/*** COMMENTS. ***/
+
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef struct { uint32_t v; } float32_t;
+typedef struct { uint64_t v; } float64_t;
+typedef struct { uint64_t v; uint16_t x; } floatx80_t;
+typedef struct { uint64_t v[ 2 ]; } float128_t;
+
+#endif
+
diff --git a/softfloat/8086/specialize.h b/softfloat/8086/specialize.h
new file mode 100755
index 0000000..ca0bb1d
--- /dev/null
+++ b/softfloat/8086/specialize.h
@@ -0,0 +1,113 @@
+
+/*============================================================================
+
+*** FIX.
+
+This C source fragment is part of the SoftFloat IEC/IEEE Floating-point
+Arithmetic Package, Release 2b.
+
+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.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 ALL LOSSES,
+COSTS, OR OTHER PROBLEMS THEY INCUR DUE TO THE SOFTWARE, AND WHO FURTHERMORE
+EFFECTIVELY INDEMNIFY JOHN HAUSER AND THE INTERNATIONAL COMPUTER SCIENCE
+INSTITUTE (possibly via similar legal warning) AGAINST ALL LOSSES, COSTS, OR
+OTHER PROBLEMS INCURRED BY THEIR CUSTOMERS AND CLIENTS DUE TO THE SOFTWARE.
+
+Derivative works are acceptable, even for commercial purposes, so long as
+(1) the source code for the derivative work includes prominent notice that
+the work is derivative, and (2) the source code includes prominent notice with
+these four paragraphs for those parts of this code that are retained.
+
+=============================================================================*/
+
+#include <stdbool.h>
+#include <stdint.h>
+
+/*----------------------------------------------------------------------------
+*----------------------------------------------------------------------------*/
+#define init_detectTininess softfloat_tininess_afterRounding;
+
+/*----------------------------------------------------------------------------
+| Structure used to transfer NaN representations from one format to another.
+*----------------------------------------------------------------------------*/
+struct commonNaN {
+ bool sign;
+ uint64_t v64, v0;
+};
+
+/*----------------------------------------------------------------------------
+| The pattern for a default generated single-precision NaN.
+*----------------------------------------------------------------------------*/
+#define defaultNaNF32UI 0xFFC00000
+
+/*----------------------------------------------------------------------------
+| Returns 1 if the single-precision floating-point value `a' is a signaling
+| NaN; otherwise, returns 0.
+*----------------------------------------------------------------------------*/
+#if defined INLINE_LEVEL && ( 1 <= INLINE_LEVEL )
+INLINE bool softfloat_isSigNaNF32UI( uint_fast32_t ui )
+ { return ( ( ui>>22 & 0x1FF ) == 0x1FE ) && ( ui & 0x003FFFFF ); }
+#else
+bool softfloat_isSigNaNF32UI( uint_fast32_t );
+#endif
+
+/*----------------------------------------------------------------------------
+*----------------------------------------------------------------------------*/
+struct commonNaN softfloat_f32UIToCommonNaN( uint_fast32_t );
+#if defined INLINE_LEVEL && ( 1 <= INLINE_LEVEL )
+INLINE uint_fast32_t softfloat_commonNaNToF32UI( struct commonNaN a )
+ { return (uint_fast32_t) a.sign<<31 | 0x7FC00000 | a.v64>>41; }
+#else
+uint_fast32_t softfloat_commonNaNToF32UI( struct commonNaN );
+#endif
+
+/*----------------------------------------------------------------------------
+| 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.
+*----------------------------------------------------------------------------*/
+uint_fast32_t softfloat_propagateNaNF32UI( uint_fast32_t, uint_fast32_t );
+
+/*----------------------------------------------------------------------------
+| The pattern for a default generated double-precision NaN.
+*----------------------------------------------------------------------------*/
+#define defaultNaNF64UI UINT64_C(0xFFF8000000000000)
+
+/*----------------------------------------------------------------------------
+*----------------------------------------------------------------------------*/
+#if defined INLINE_LEVEL && ( 1 <= INLINE_LEVEL )
+INLINE bool softfloat_isSigNaNF64UI( uint_fast64_t ui )
+{
+ return
+ ( ( ui>>51 & 0xFFF ) == 0xFFE )
+ && ( ui & UINT64_C( 0x0007FFFFFFFFFFFF ) );
+}
+#else
+bool softfloat_isSigNaNF64UI( uint_fast64_t );
+#endif
+
+/*----------------------------------------------------------------------------
+*----------------------------------------------------------------------------*/
+/*** MIGHT BE INLINE'D. ***/
+struct commonNaN softfloat_f64UIToCommonNaN( uint_fast64_t );
+uint_fast64_t softfloat_commonNaNToF64UI( struct commonNaN );
+
+/*----------------------------------------------------------------------------
+| 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.
+*----------------------------------------------------------------------------*/
+uint_fast64_t softfloat_propagateNaNF64UI( uint_fast64_t, uint_fast64_t );
+
generated by cgit v1.1 at 2024-08-03 07:35:39 +0000