// Swap the order of bytes in memory
void ByteSwap(void *p, int nBytes)
{
	unsigned char *buf = (unsigned char*)p;
	for (int i=0; i<nBytes/2; i++)
	{
		// Swap i'th and (nBytes-i-1)'th elements
		unsigned char temp = buf[i];
		buf[i] = buf[nBytes-i-1];
		buf[nBytes-i-1] = temp;
	}
}

// Dump a chunk of memory to a CString
CString HexDump(void *pData, int nLength, long nAddress, int nBytesPerLine /* = 16 */)
{
	CString sDump;
	CString s;
	unsigned char *p = (unsigned char *)pData;
	int col=0;
	s.Format("%08x: ",nAddress); sDump += s;
	char sChars[17];
	sChars[nBytesPerLine]=0;
	char c;
	for (int i=0; i<nLength; i++)
	{
		s.Format("%02x ",p[i]); sDump+=s;
		nAddress++;
		c=p[i];
		if (c<0x20||c>=0x7f) c='.';
		sChars[col]=c;
		sChars[col+1]=0;
		if (col==7) {s.Format(" "); sDump+=s;} // extra space at centre
		if (col==nBytesPerLine-1)
		{
			s.Format(" '%s'\n",sChars); sDump+=s;
			if (i<nLength-1) {s.Format("%08x: ",nAddress); sDump += s; }
			col=0;
		}
		else
		{
			col++;
		}
	}

	if (col>0)
	{
		for (int i=col; i<nBytesPerLine; i++)
		{
			if (i==7)
			{
				s.Format("    "); sDump += s;
			}
			else
			{
				s.Format("   "); sDump += s;
			}
		}
		s.Format(" '%s'\n",sChars); sDump += s;
	}
	s.Format("\n"); sDump += s;

	return sDump;
}