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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/m68k/math-emu/fp_log.h
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/*

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  fp_log.h: floating-point math routines for the Linux-m68k

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  floating point emulator.

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  Copyright (c) 1998-1999 David Huggins-Daines / Roman Zippel.

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  I hereby give permission, free of charge, to copy, modify, and

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  redistribute this software, in source or binary form, provided that

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  the above copyright notice and the following disclaimer are included

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  in all such copies.

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  THIS SOFTWARE IS PROVIDED "AS IS", WITH ABSOLUTELY NO WARRANTY, REAL

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  OR IMPLIED.

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*/

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#ifndef _FP_LOG_H

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#define _FP_LOG_H

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#include "fp_emu.h"

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/* floating point logarithmic instructions:

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   the arguments to these are in the "internal" extended format, that

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   is, an "exploded" version of the 96-bit extended fp format used by

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   the 68881.

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   they return a status code, which should end up in %d0, if all goes

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   well.  */

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struct fp_ext *fp_fsqrt(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_fetoxm1(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_fetox(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_ftwotox(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_ftentox(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_flogn(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_flognp1(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_flog10(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_flog2(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_fgetexp(struct fp_ext *dest, struct fp_ext *src);

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struct fp_ext *fp_fgetman(struct fp_ext *dest, struct fp_ext *src);

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#endif /* _FP_LOG_H */

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