ndshead.cpp

一个任天堂掌上游戏机NDS的源代码

#include <string.h>
#include <string>
#include <fstream>
#include "ndshead.h"
#include "byteswap.h"
#include "log.h"

NDShead::NDShead(std::string file)
{
    std::ifstream input(file.c_str(), std::ios::binary);

    input.read((char*)&head, 512);
    input.close();
}

NDShead::NDShead(u8 *file)
{
    memcpy((void*)&head, file, 512);
    byteswap();
}

void NDShead::byteswap()
{
    head.arm9src  = mtohl(head.arm9src);
    head.arm9exec = mtohl(head.arm9exec);
    head.arm9dest = mtohl(head.arm9dest);
    head.arm9size = mtohl(head.arm9size);
    head.arm9unk  = mtohl(head.arm9unk);
    head.arm7src  = mtohl(head.arm7src);
    head.arm7exec = mtohl(head.arm7exec);
    head.arm7dest = mtohl(head.arm7dest);
    head.arm7size = mtohl(head.arm7size);
    head.arm7unk  = mtohl(head.arm7unk);
    
    head.ftablesrc  = mtohl(head.ftablesrc);
    head.ftablesize = mtohl(head.ftablesize);
    head.fdatasrc   = mtohl(head.fdatasrc);
    head.fdatasize  = mtohl(head.fdatasize);

    head.RESa = mtohl(head.RESa);
    head.RESb = mtohl(head.RESb);
    head.bannersrc = mtohl(head.bannersrc);

    head.romsize  = mtohl(head.romsize);
    head.headsize = mtohl(head.headsize);
    
    head.crcsec  = mtohs(head.crcsec);
    head.timeout = mtohs(head.timeout);
    head.crclogo = mtohs(head.crclogo);
    head.crchead = mtohs(head.crchead);
}

void NDShead::print()
{
    char str[128];
    sprintf(str, "ROM size: %08X", head.romsize);
    Logger::log("NDS header") << str;
    
    sprintf(str,"ARM9: src=%08X, dest=%08X, size=%08X, start=%08X",
	    head.arm9src, head.arm9dest, head.arm9size, head.arm9exec);
    Logger::log("NDS header") << str;
    
    sprintf(str,"ARM7: src=%08X, dest=%08X, size=%08X, start=%08X",
 	    head.arm7src, head.arm7dest, head.arm7size, head.arm7exec);
    Logger::log("NDS header") << str;
}