cpu/cpu_generic/ppc_tools.h

/*
 *      PearPC
 *      ppc_tools.h
 *
 *      Copyright (C) 2003 Sebastian Biallas (sb@biallas.net)
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License version 2 as
 *      published by the Free Software Foundation.
 *
 *      This program is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *      GNU General Public License for more details.
 *
 *      You should have received a copy of the GNU General Public License
 *      along with this program; if not, write to the Free Software
 *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef __PPC_TOOLS_H__
#define __PPC_TOOLS_H__

#include "system/types.h"

static inline FUNCTION_CONST bool ppc_carry_3(uint32 a, uint32 b, uint32 c)
{
        if ((a+b) < a) {
                return true;
        }
        if ((a+b+c) < c) {
                return true;
        }
        return false;
}

static inline FUNCTION_CONST uint32 ppc_word_rotl(uint32 data, int n)
{
        n &= 0x1f;
        return (data << n) | (data >> (32-n));
}

#endif
1	dpavlin	1	/*
2			* PearPC
3			* ppc_tools.h
4			*
5			* Copyright (C) 2003 Sebastian Biallas (sb@biallas.net)
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License version 2 as
9			* published by the Free Software Foundation.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19			*/
20
21			#ifndef __PPC_TOOLS_H__
22			#define __PPC_TOOLS_H__
23
24			#include "system/types.h"
25
26			static inline FUNCTION_CONST bool ppc_carry_3(uint32 a, uint32 b, uint32 c)
27			{
28			if ((a+b) < a) {
29			return true;
30			}
31			if ((a+b+c) < c) {
32			return true;
33			}
34			return false;
35			}
36
37			static inline FUNCTION_CONST uint32 ppc_word_rotl(uint32 data, int n)
38			{
39			n &= 0x1f;
40			return (data << n) \| (data >> (32-n));
41			}
42
43			#endif