private void bitmapGridSpriteView_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
int clickedPixel = bitmapGridSpriteView.getClickedPixel(e);
int temp = (int)numericUpDownActualAddress.Value + clickedPixel / 8;
if (temp > 0xFFFF)
{
temp -= 0xFFFF;
}
UInt16 bitToToggleAddress = Convert.ToUInt16(temp);
if (bitToToggleAddress < 0x4000)
{
return; //cannot change ROM
}
byte memValue = _spectrum.ReadMemory(bitToToggleAddress);
memValue = (byte)GraphicsTools.ToggleBit(memValue, clickedPixel % 8);
_spectrum.WriteMemory(Convert.ToUInt16(bitToToggleAddress), memValue);
setZXImage(); //refresh
}
}