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/*
* Copyright (c) 2003-2005 The Regents of The University of Michigan
* 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 its
* 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.
*/
#ifndef __ARCH_ISA_SPECIFIC_HH__
#define __ARCH_ISA_SPECIFIC_HH__
//This file provides a mechanism for other source code to bring in
//files from the ISA being compiled with
//These are constants so you can selective compile code based on the isa
//To use them, do something like
//
//#if THE_ISA == YOUR_FAVORITE_ISA
// conditional_code
//#endif
//
//Note that this is how this file sets up the other isa "hooks"
//These macros have numerical values because otherwise the preprocessor
//would treat them as 0 in comparisons.
#define ALPHA_ISA 21064
#define SPARC_ISA 42
#define MIPS_ISA 1337
//These tell the preprocessor where to find the files of a particular
//ISA, and set the "TheISA" macro for use elsewhere.
#if THE_ISA == ALPHA_ISA
#define ISA_PATH arch/alpha/
#define TheISA AlphaISA
#elif THE_ISA == SPARC_ISA
#define ISA_PATH arch/sparc/
#define TheISA SparcISA
#elif THE_ISA == MIPS_ISA
#define ISA_PATH arch/mips/
#define TheISA MipsISA
#else
#error "THE_ISA not set"
#endif
//The following is some preprocessor voodoo to allow redirectable includes
//The end result is the ISA_INCLUDE() macro which is used inside stub
//include files in arch and which redirect to the isa in use.
#define STRINGIFY(token) #token
#define EXPAND(token) token
#define STICK_TOGETHER(firstpart, secondpart) \
EXPAND(firstpart)EXPAND(secondpart)
#define EXPAND_AND_STRINGIFY(pathAndFile) \
STRINGIFY(pathAndFile)
#define ISA_INCLUDE(filename) \
EXPAND_AND_STRINGIFY(STICK_TOGETHER(ISA_PATH, filename))
#endif
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