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-rw-r--r--softfloat/f16_to_i16.c6
-rw-r--r--softfloat/f16_to_i8.c57
-rw-r--r--softfloat/f16_to_ui16.c4
-rw-r--r--softfloat/f16_to_ui8.c54
-rw-r--r--softfloat/f32_to_i16.c6
-rw-r--r--softfloat/f32_to_ui16.c4
-rw-r--r--softfloat/softfloat.h2
-rw-r--r--softfloat/softfloat.mk.in2
-rw-r--r--softfloat/specialize.h7
9 files changed, 136 insertions, 6 deletions
diff --git a/softfloat/f16_to_i16.c b/softfloat/f16_to_i16.c
index 0ec7ce1..b0fbb7c 100644
--- a/softfloat/f16_to_i16.c
+++ b/softfloat/f16_to_i16.c
@@ -40,13 +40,15 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
int_fast16_t f16_to_i16( float16_t a, uint_fast8_t roundingMode, bool exact )
{
+ uint_fast8_t old_flags = softfloat_exceptionFlags;
+
int_fast32_t sig32 = f16_to_i32(a, roundingMode, exact);
if (sig32 > INT16_MAX) {
- softfloat_exceptionFlags |= softfloat_flag_invalid;
+ softfloat_exceptionFlags = old_flags | softfloat_flag_invalid;
return i16_fromPosOverflow;
} else if (sig32 < INT16_MIN) {
- softfloat_exceptionFlags |= softfloat_flag_invalid;
+ softfloat_exceptionFlags = old_flags | softfloat_flag_invalid;
return i16_fromNegOverflow;
} else {
return sig32;
diff --git a/softfloat/f16_to_i8.c b/softfloat/f16_to_i8.c
new file mode 100644
index 0000000..23638cc
--- /dev/null
+++ b/softfloat/f16_to_i8.c
@@ -0,0 +1,57 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3d, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
+University of California. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions, and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions, and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ 3. Neither the name of the University nor the names of its contributors may
+ be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
+DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "specialize.h"
+#include "softfloat.h"
+
+int_fast8_t f16_to_i8( float16_t a, uint_fast8_t roundingMode, bool exact )
+{
+ uint_fast8_t old_flags = softfloat_exceptionFlags;
+
+ int_fast32_t sig32 = f16_to_i32(a, roundingMode, exact);
+
+ if (sig32 > INT8_MAX) {
+ softfloat_exceptionFlags = old_flags | softfloat_flag_invalid;
+ return i8_fromPosOverflow;
+ } else if (sig32 < INT8_MIN) {
+ softfloat_exceptionFlags = old_flags | softfloat_flag_invalid;
+ return i8_fromNegOverflow;
+ } else {
+ return sig32;
+ }
+}
+
diff --git a/softfloat/f16_to_ui16.c b/softfloat/f16_to_ui16.c
index 818328a..81c4f8d 100644
--- a/softfloat/f16_to_ui16.c
+++ b/softfloat/f16_to_ui16.c
@@ -40,10 +40,12 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
uint_fast16_t f16_to_ui16( float16_t a, uint_fast8_t roundingMode, bool exact )
{
+ uint_fast8_t old_flags = softfloat_exceptionFlags;
+
uint_fast32_t sig32 = f16_to_ui32(a, roundingMode, exact);
if (sig32 > UINT16_MAX) {
- softfloat_exceptionFlags |= softfloat_flag_invalid;
+ softfloat_exceptionFlags = old_flags | softfloat_flag_invalid;
return ui16_fromPosOverflow;
} else {
return sig32;
diff --git a/softfloat/f16_to_ui8.c b/softfloat/f16_to_ui8.c
new file mode 100644
index 0000000..96124e1
--- /dev/null
+++ b/softfloat/f16_to_ui8.c
@@ -0,0 +1,54 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3d, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
+University of California. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions, and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions, and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ 3. Neither the name of the University nor the names of its contributors may
+ be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
+DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "specialize.h"
+#include "softfloat.h"
+
+uint_fast8_t f16_to_ui8( float16_t a, uint_fast8_t roundingMode, bool exact )
+{
+ uint_fast8_t old_flags = softfloat_exceptionFlags;
+
+ uint_fast32_t sig32 = f16_to_ui32(a, roundingMode, exact);
+
+ if (sig32 > UINT8_MAX) {
+ softfloat_exceptionFlags = old_flags | softfloat_flag_invalid;
+ return ui8_fromPosOverflow;
+ } else {
+ return sig32;
+ }
+}
+
diff --git a/softfloat/f32_to_i16.c b/softfloat/f32_to_i16.c
index 14ebc6b..bde4c76 100644
--- a/softfloat/f32_to_i16.c
+++ b/softfloat/f32_to_i16.c
@@ -40,13 +40,15 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
int_fast16_t f32_to_i16( float32_t a, uint_fast8_t roundingMode, bool exact )
{
+ uint_fast8_t old_flags = softfloat_exceptionFlags;
+
int_fast32_t sig32 = f32_to_i32(a, roundingMode, exact);
if (sig32 > INT16_MAX) {
- softfloat_exceptionFlags |= softfloat_flag_invalid;
+ softfloat_exceptionFlags = old_flags | softfloat_flag_invalid;
return i16_fromPosOverflow;
} else if (sig32 < INT16_MIN) {
- softfloat_exceptionFlags |= softfloat_flag_invalid;
+ softfloat_exceptionFlags = old_flags | softfloat_flag_invalid;
return i16_fromNegOverflow;
} else {
return sig32;
diff --git a/softfloat/f32_to_ui16.c b/softfloat/f32_to_ui16.c
index a8f458d..073492b 100644
--- a/softfloat/f32_to_ui16.c
+++ b/softfloat/f32_to_ui16.c
@@ -40,10 +40,12 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
uint_fast16_t f32_to_ui16( float32_t a, uint_fast8_t roundingMode, bool exact )
{
+ uint_fast8_t old_flags = softfloat_exceptionFlags;
+
uint_fast32_t sig32 = f32_to_ui32(a, roundingMode, exact);
if (sig32 > UINT16_MAX) {
- softfloat_exceptionFlags |= softfloat_flag_invalid;
+ softfloat_exceptionFlags = old_flags | softfloat_flag_invalid;
return ui16_fromPosOverflow;
} else {
return sig32;
diff --git a/softfloat/softfloat.h b/softfloat/softfloat.h
index 5579c68..f63b6fc 100644
--- a/softfloat/softfloat.h
+++ b/softfloat/softfloat.h
@@ -141,9 +141,11 @@ void i64_to_f128M( int64_t, float128_t * );
/*----------------------------------------------------------------------------
| 16-bit (half-precision) floating-point operations.
*----------------------------------------------------------------------------*/
+uint_fast8_t f16_to_ui8( float16_t, uint_fast8_t, bool );
uint_fast16_t f16_to_ui16( float16_t, uint_fast8_t, bool );
uint_fast32_t f16_to_ui32( float16_t, uint_fast8_t, bool );
uint_fast64_t f16_to_ui64( float16_t, uint_fast8_t, bool );
+int_fast8_t f16_to_i8( float16_t, uint_fast8_t, bool );
int_fast16_t f16_to_i16( float16_t, uint_fast8_t, bool );
int_fast32_t f16_to_i32( float16_t, uint_fast8_t, bool );
int_fast64_t f16_to_i64( float16_t, uint_fast8_t, bool );
diff --git a/softfloat/softfloat.mk.in b/softfloat/softfloat.mk.in
index 56fc560..900771e 100644
--- a/softfloat/softfloat.mk.in
+++ b/softfloat/softfloat.mk.in
@@ -56,11 +56,13 @@ softfloat_c_srcs = \
f16_to_f128.c \
f16_to_f32.c \
f16_to_f64.c \
+ f16_to_i8.c \
f16_to_i16.c \
f16_to_i32.c \
f16_to_i32_r_minMag.c \
f16_to_i64.c \
f16_to_i64_r_minMag.c \
+ f16_to_ui8.c \
f16_to_ui16.c \
f16_to_ui32.c \
f16_to_ui32_r_minMag.c \
diff --git a/softfloat/specialize.h b/softfloat/specialize.h
index 8bd9857..556476c 100644
--- a/softfloat/specialize.h
+++ b/softfloat/specialize.h
@@ -55,6 +55,13 @@ extern "C" {
| The values to return on conversions to 32-bit integer formats that raise an
| invalid exception.
*----------------------------------------------------------------------------*/
+#define ui8_fromPosOverflow 0xFF
+#define ui8_fromNegOverflow 0
+#define ui8_fromNaN 0xFF
+#define i8_fromPosOverflow 0x7F
+#define i8_fromNegOverflow (-0x7F - 1)
+#define i8_fromNaN 0x7F
+
#define ui16_fromPosOverflow 0xFFFF
#define ui16_fromNegOverflow 0
#define ui16_fromNaN 0xFFFF
generated by cgit v1.1 at 2024-09-12 02:53:15 +0000