Method checkMemActivity

src/drivers/Qt/HexEditor.cpp:3573–3613

---------------------------------------------------------------------------- Calling of checkMemActivity must always be synchronized with the emulation thread as calling GetMem while the emulation is executing can mess up certain registers (especially controller registers $4016 and $4017)

// thread as calling GetMem while the emulation is executing can mess up certain
// registers (especially controller registers $4016 and $4017)
int QHexEdit::checkMemActivity(void)
{
	int c;

	// Don't perform memory activity checks when:
	// 1. In ROM View Mode
	// 2. The simulation is not cycling (paused)

	if ( !updateRequested )
	{
		if ( ( viewMode == MODE_NES_ROM ) ||
		      ( total_instructions_lp == total_instructions ) )
		{
			return -1;
		}
	}

	for (int i=0; i<mb.size(); i++)
	{
		c = memAccessFunc(i);

		if ( c != mb.buf[i].data )
		{
			mb.buf[i].actv  = 15;
			mb.buf[i].data  = c;
			//mb.buf[i].draw  = 1;
		}
		else
		{
			if ( mb.buf[i].actv > 0 )
			{
				//mb.buf[i].draw = 1;
				mb.buf[i].actv--;
			}
		}
	}
	total_instructions_lp = total_instructions;
	updateRequested = false;

   return 0;
}
//----------------------------------------------------------------------------
int QHexEdit::getRomAddrColor( int addr, QColor &fg, QColor &bg )
{