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softfloat-macros.h 24.2 kB
softfloat-native.c 11.1 kB
softfloat-native.h 13.2 kB
softfloat-specialize.h 27.2 kB
softfloat.c 218.3 kB
softfloat.h 24.6 kB

Latest revisions

# Date Author Comment
c29aca44 04/13/2011 12:33 am Peter Maydell

softfloat: Add setter function for tininess detection mode

Add a setter function for the underflow tininess detection mode,
in line with the similar functions for other parts of the float status
structure.

Signed-off-by: Peter Maydell <>...
d2fbca94 04/12/2011 09:49 pm Guan Xuetao

unicore32: necessary modifications for other files to support unicore32

Signed-off-by: Guan Xuetao <>
Signed-off-by: Blue Swirl <>
274f1b04 04/03/2011 06:19 pm Peter Maydell

softfloat: Add float*_min() and float*_max() functions

Add min and max operations to softfloat. This allows us to implement
propagation of NaNs and handling of negative zero correctly (unlike
the approach of having target helper routines return one of the operands...
bb98fe42 03/21/2011 10:46 pm Andreas Färber

softfloat: Drop [s]bits{8, 16, 32, 64} types in favor of [u]int{8, 16, 32, 64}_t

They are defined with the same semantics as the POSIX types,
so prefer those for consistency. Suggested by Peter Maydell.

Cc: Peter Maydell <>
Cc: Aurelien Jarno <>...
87b8cc3c 03/21/2011 10:46 pm Andreas Färber

softfloat: Resolve type mismatches between declaration and implementation

The original SoftFloat 2.0b library avoided the use of custom integer types
in its public headers. This requires the definitions of int{8,16,32,64} to
match the assumptions in the declarations. This breaks on BeOS R5 and Haiku/x86,...
8d725fac 03/21/2011 10:46 pm Andreas Färber

softfloat: Prepend QEMU-style header with derivation notice

The SoftFloat license requires "prominent notice that the work
is derivative". Having added features like improved 16-bit support
for arm already, add such a notice to the sources.

softfloat-native.[ch] are not under the SoftFloat license...
8559666d 02/24/2011 09:53 am Christophe Lyon

softfloat: move all default NaN definitions to softfloat.h.

These special values are needed to implement some helper functions,
which return/use these values in some cases.

Signed-off-by: Christophe Lyon <>
Reviewed-by: Peter Maydell <>...
c30fe7df 02/24/2011 09:53 am Christophe Lyon

softfloat: add _set_sign(), _infinity and _half for 32 and 64 bits floats.

These constants and utility function are needed to implement some
helpers. Defining constants avoids the need to re-compute them at
runtime.

Signed-off-by: Christophe Lyon <>...
d5138cf4 02/10/2011 09:16 pm Peter Maydell

softfloat: Fix compilation failures with USE_SOFTFLOAT_STRUCT_TYPES

Make softfloat compile with USE_SOFTFLOAT_STRUCT_TYPES defined, by
adding and using new macros const_float16(), const_float32() and
const_float64() so you can use array initializers in an array of...
f591e1be 02/10/2011 07:28 pm Peter Maydell

softfloat: Correctly handle NaNs in float16_to_float32()

Correctly handle NaNs in float16_to_float32(), by defining and
using a float16ToCommonNaN() function, as we do with the other formats.

Signed-off-by: Peter Maydell <>
Signed-off-by: Aurelien Jarno <>

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