arch/isa_specific.hh

   1 /*
   2  * Copyright (c) 2003-2005 The Regents of The University of Michigan
   3  * All rights reserved.
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  14  * this software without specific prior written permission.
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  28
  29 #ifndef __ARCH_ISA_SPECIFIC_HH__
  30 #define __ARCH_ISA_SPECIFIC_HH__
  31
  32 //This file provides a mechanism for other source code to bring in
  33 //files from the ISA being compiled with
  34
  35 //These are constants so you can selective compile code based on the isa
  36 //To use them, do something like
  37 //
  38 //#if THE_ISA == YOUR_FAVORITE_ISA
  39 //      conditional_code
  40 //#endif
  41 //
  42 //Note that this is how this file sets up the other isa "hooks"
  43
  44 //These macros have numerical values because otherwise the preprocessor
  45 //would treat them as 0 in comparisons.
  46 #define ALPHA_ISA 21064
  47 #define SPARC_ISA 42
  48 #define MIPS_ISA 1337
  49
  50 //These tell the preprocessor where to find the files of a particular
  51 //ISA, and set the "TheISA" macro for use elsewhere.
  52 #if THE_ISA == ALPHA_ISA
  53     #define TheISA AlphaISA
  54 #elif THE_ISA == SPARC_ISA
  55     #define TheISA SparcISA
  56 #elif THE_ISA == MIPS_ISA
  57     #define TheISA MipsISA
  58 #else
  59     #error "THE_ISA not set"
  60 #endif
  61
  62 #endif