source: dev/branches/x64_compiler_on_32/abdev/BasicCompiler_Common/gc.cpp

#include "stdafx.h"

#include <Compiler.h>

#if defined _AMD64_ || defined BUILD_X64_COMPILER
#include "../compiler_x64/opcode.h"
#else
#include "../compiler_x86/opcode.h"
#endif

using namespace ActiveBasic::Compiler;

void InitGCVariables(void){
    char temporary[255];
    Type type;
    RELATIVE_VAR RelativeVar;


    ///////////////////////////////
    // スタックフレームの開始位置
    ///////////////////////////////

    if( compiler.GetObjectModule().meta.GetGlobalVars().Find( LexicalAnalyzer::FullNameToSymbol( "_System_gc_StackRoot_StartPtr" ) ) == NULL )
    {
        // 未定義の場合は定義する
        sprintf(temporary,"_System_gc_StackRoot_StartPtr%c%c*LONG_PTR",1,ESC_AS);
        OpcodeDim(temporary,0);
    }

    GetVarOffsetReadWrite("_System_gc_StackRoot_StartPtr",&RelativeVar,type);

    //mov rax,rsp
    compiler.codeGenerator.op_mov_RR(REG_RAX,REG_RSP);

    //mov ptr[offset],rax/eax
    compiler.codeGenerator.op_mov_MR(PTR_SIZE,REG_RAX,0,(int)RelativeVar.offset,MOD_DISP32, Schedule::GlobalVar );
}