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/* Copyright (c) 2002 Michael Stumpf <mistumpf@de.pepperl-fuchs.com>
Copyright (c) 2008 Dmitry Xmelkov
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* 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.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. */
/* $Id: cmpsf2.S,v 1.1.2.2 2008/03/22 04:13:12 dmix Exp $ */
#include "fp32def.h"
#include "asmdef.h"
/* GCC expects all these functions to return -1/0/1 as for __cmpsf2 -
compare with gcc/config/fp-bit.c (the only difference is with NaNs
where we should always return nonzero for EQ/NE, -1 for GT/GE,
1 for LT/LE). -MM 2000-11-18 */
#define ret_lo r24 /* return value (signed byte) */
.ifnc ret_lo, rA2 ; This is used in __fp_cmp() function.
.err
.endif
/* Return value:
if (A < B)
-1
elif (A == B)
0
else // A > B || isnan(A) || isnan(B)
1
*/
ENTRY __cmpsf2
ENTRY __eqsf2
ENTRY __nesf2
ENTRY __ltsf2
ENTRY __lesf2
rcall _U(__fp_cmp)
brcc 1f
ldi ret_lo, 1
1: ret
ENDFUNC
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