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/*
* This file is part of the Advance project.
*
* Copyright (C) 1999, 2000, 2001, 2002, 2003 Andrea Mazzoleni
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*
* In addition, as a special exception, Andrea Mazzoleni
* gives permission to link the code of this program with
* the MAME library (or with modified versions of MAME that use the
* same license as MAME), and distribute linked combinations including
* the two. You must obey the GNU General Public License in all
* respects for all of the code used other than MAME. If you modify
* this file, you may extend this exception to your version of the
* file, but you are not obligated to do so. If you do not wish to
* do so, delete this exception statement from your version.
*/
/** \file
* Extra types.
*/
#ifndef __EXTRA_H
#define __EXTRA_H
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/***************************************************************************/
/* Types */
/** \addtogroup Type */
/*@{*/
/**
* Type used to check the result of operation.
* - ==0 is ok
* - <0 is not ok
* - >0 special conditions
*/
typedef int adv_error;
/**
* Type used to check the result of a adv_bool operation.
* - ==0 false
* - !=0 true
*/
typedef int adv_bool;
typedef unsigned char uint8; /**< Unsigned 8 bit integer. */
typedef signed char int8; /**< Signed 8 bit integer. */
typedef uint16_t uint16; /**< Unsigned 16 bit integer. */
typedef int16_t int16; /**< Signed 16 bit integer. */
typedef uint32_t uint32; /**< Unsigned 32 bit integer. */
typedef int32_t int32; /**< Signed 32 bit integer. */
typedef uint64_t uint64; /**< Unsigned 64 bit integer. */
typedef int64_t int64; /**< Signed 64 bit integer. */
typedef uintptr_t uintptr; /**< Unsigned integer with pointer size. */
/**
* Check for unsigned overflow in multiplication
*/
static inline int UINT_MUL_OVERFLOW(unsigned a, unsigned b)
{
return b != 0 && a >= UINT_MAX / b;
}
/** \name Align
* Alignment.
*/
/*@{*/
#define ALIGN_BIT 4 /**< Number of bit of alignment required for SSE2. */
#define ALIGN (1U << ALIGN_BIT) /**< Alignment multiplicator. */
#define ALIGN_MASK (ALIGN - 1U) /**< Alignment mask. */
/**
* Align a unsigned integer at the specified byte size.
*/
static inline uintptr ALIGN_UNSIGNED(uintptr v, unsigned a)
{
uintptr mask = a - 1;
return (v + mask) & ~mask;
}
/**
* Align a void pointer at the specified byte size.
*/
static inline void* ALIGN_PTR(void* v, unsigned a)
{
return (void*)ALIGN_UNSIGNED((uintptr)v, a);
}
/*@}*/
/*@}*/
#ifdef __cplusplus
}
#endif
#endif
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