daedalus/Source/Base/Alignment.h
2021-12-10 13:15:30 +11:00

87 lines
2.8 KiB
C

/*
Copyright (C) 2001-2007 StrmnNrmn
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#pragma once
#ifndef UTILITY_ALIGNMENT_H_
#define UTILITY_ALIGNMENT_H_
#if defined(DAEDALUS_W32)
#if defined( _MSC_VER )
#define ALIGNED_TYPE(type, type_name, alignval) __declspec(align(alignval)) type type_name
#define ALIGNED_GLOBAL(type, var, alignval) __declspec(align(alignval)) type var
#define ALIGNED_MEMBER(type, var, alignval) __declspec(align(alignval)) type var
#define ALIGNED_EXTERN(type, var, alignval) extern __declspec(align(alignval)) type var
#elif defined( __GNUC__ )
// GCC has __attribute__((aligned)) but it complains that the maximum alignment is 16
#define ALIGNED_TYPE(type, type_name, alignval) type type_name
#define ALIGNED_GLOBAL(type, var, alignval) __asm__(".balign " #alignval ) type var
#define ALIGNED_MEMBER(type, var, alignval) __attribute__((aligned(alignval))) type var
#define ALIGNED_EXTERN(type, var, alignval) extern type var
#else
#error "Unhandled compiler type"
#endif
#elif defined( DAEDALUS_PSP ) || defined( DAEDALUS_PS3 ) || defined( DAEDALUS_POSIX )
#define ALIGNED_TYPE(type, type_name, alignval) type __attribute__((aligned(alignval))) type_name
#define ALIGNED_GLOBAL(type, var, alignval) __attribute__((aligned(alignval))) type var
#define ALIGNED_MEMBER(type, var, alignval) __attribute__((aligned(alignval))) type var
#define ALIGNED_EXTERN(type, var, alignval) extern __attribute__((aligned(alignval))) type var
#else
#warning "Unhandled Daedalus build type"
#endif // defined(DAEDALUS_W32)
#if !defined( ALIGNED_TYPE ) || !defined( ALIGNED_GLOBAL ) || !defined( ALIGNED_MEMBER )
#define ALIGNED_TYPE(type, type_name, alignval) type type_name
#define ALIGNED_GLOBAL(type, var, alignval) type var
#define ALIGNED_MEMBER(type, var, alignval) type var
#warning "Aligned types not supported"
#endif
#ifdef DAEDALUS_PSP
#define DATA_ALIGN 16
#define CACHE_ALIGN 64
#define PAGE_ALIGN 64
#else
// Pentium 4 has 64-byte cachelines
#define DATA_ALIGN 16
#define CACHE_ALIGN 64
#define PAGE_ALIGN 4096
#endif
#endif // UTILITY_ALIGNMENT_H_