Commit e34c47ea authored by Alex Bennée's avatar Alex Bennée
Browse files

fpu: move inline helpers into a separate header 



There are a bunch of users of the inline helpers who do not need
access to the entire softfloat API. Move those inline helpers into a
new header file which can be included without bringing in the rest of
the world.

Signed-off-by: default avatarAlex Bennée <alex.bennee@linaro.org>
Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Reviewed-by: default avatarPhilippe Mathieu-Daudé <philmd@redhat.com>
parent 472038cc

include/fpu/softfloat-helpers.h

0 → 100644
+132 −0
Original line number Diff line number Diff line 
/*

 * QEMU float support - standalone helpers

 *

 * This is provided for files that don't need the access to the full

 * set of softfloat functions. Typically this is cpu initialisation

 * code which wants to set default rounding and exceptions modes.

 *

 * The code in this source file is derived from release 2a of the SoftFloat

 * IEC/IEEE Floating-point Arithmetic Package. Those parts of the code (and

 * some later contributions) are provided under that license, as detailed below.

 * It has subsequently been modified by contributors to the QEMU Project,

 * so some portions are provided under:

 *  the SoftFloat-2a license

 *  the BSD license

 *  GPL-v2-or-later

 *

 * Any future contributions to this file after December 1st 2014 will be

 * taken to be licensed under the Softfloat-2a license unless specifically

 * indicated otherwise.

 */



/*

===============================================================================

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.



===============================================================================

*/



#ifndef _SOFTFLOAT_HELPERS_H_

#define _SOFTFLOAT_HELPERS_H_



#include "fpu/softfloat-types.h"



static inline void set_float_detect_tininess(int val, float_status *status)

{

    status->float_detect_tininess = val;

}



static inline void set_float_rounding_mode(int val, float_status *status)

{

    status->float_rounding_mode = val;

}



static inline void set_float_exception_flags(int val, float_status *status)

{

    status->float_exception_flags = val;

}



static inline void set_floatx80_rounding_precision(int val,

                                                   float_status *status)

{

    status->floatx80_rounding_precision = val;

}



static inline void set_flush_to_zero(flag val, float_status *status)

{

    status->flush_to_zero = val;

}



static inline void set_flush_inputs_to_zero(flag val, float_status *status)

{

    status->flush_inputs_to_zero = val;

}



static inline void set_default_nan_mode(flag val, float_status *status)

{

    status->default_nan_mode = val;

}



static inline void set_snan_bit_is_one(flag val, float_status *status)

{

    status->snan_bit_is_one = val;

}



static inline int get_float_detect_tininess(float_status *status)

{

    return status->float_detect_tininess;

}



static inline int get_float_rounding_mode(float_status *status)

{

    return status->float_rounding_mode;

}



static inline int get_float_exception_flags(float_status *status)

{

    return status->float_exception_flags;

}



static inline int get_floatx80_rounding_precision(float_status *status)

{

    return status->floatx80_rounding_precision;

}



static inline flag get_flush_to_zero(float_status *status)

{

    return status->flush_to_zero;

}



static inline flag get_flush_inputs_to_zero(float_status *status)

{

    return status->flush_inputs_to_zero;

}



static inline flag get_default_nan_mode(float_status *status)

{

    return status->default_nan_mode;

}



#endif /* _SOFTFLOAT_HELPERS_H_ */

include/fpu/softfloat.h

+1 −62
Original line number Diff line number Diff line
@@ -93,68 +93,7 @@ enum { 
};



#include "fpu/softfloat-types.h"



static inline void set_float_detect_tininess(int val, float_status *status)

{

    status->float_detect_tininess = val;

}

static inline void set_float_rounding_mode(int val, float_status *status)

{

    status->float_rounding_mode = val;

}

static inline void set_float_exception_flags(int val, float_status *status)

{

    status->float_exception_flags = val;

}

static inline void set_floatx80_rounding_precision(int val,

                                                   float_status *status)

{

    status->floatx80_rounding_precision = val;

}

static inline void set_flush_to_zero(flag val, float_status *status)

{

    status->flush_to_zero = val;

}

static inline void set_flush_inputs_to_zero(flag val, float_status *status)

{

    status->flush_inputs_to_zero = val;

}

static inline void set_default_nan_mode(flag val, float_status *status)

{

    status->default_nan_mode = val;

}

static inline void set_snan_bit_is_one(flag val, float_status *status)

{

    status->snan_bit_is_one = val;

}

static inline int get_float_detect_tininess(float_status *status)

{

    return status->float_detect_tininess;

}

static inline int get_float_rounding_mode(float_status *status)

{

    return status->float_rounding_mode;

}

static inline int get_float_exception_flags(float_status *status)

{

    return status->float_exception_flags;

}

static inline int get_floatx80_rounding_precision(float_status *status)

{

    return status->floatx80_rounding_precision;

}

static inline flag get_flush_to_zero(float_status *status)

{

    return status->flush_to_zero;

}

static inline flag get_flush_inputs_to_zero(float_status *status)

{

    return status->flush_inputs_to_zero;

}

static inline flag get_default_nan_mode(float_status *status)

{

    return status->default_nan_mode;

}

#include "fpu/softfloat-helpers.h"



/*----------------------------------------------------------------------------

| Routine to raise any or all of the software IEC/IEEE floating-point