/// <summary>
/// Copies the current font from emulated memory into a buffer.
/// </summary>
/// <param name="memory">Current PhysicalMemory instance.</param>
private void InitializeFont(PhysicalMemory memory)
{
uint offset;
int length;
switch (this.FontHeight)
{
case 8:
offset = PhysicalMemory.Font8x8Offset;
length = 8 * 256;
break;
case 14:
offset = PhysicalMemory.Font8x14Offset;
length = 16 * 256;
break;
case 16:
offset = PhysicalMemory.Font8x16Offset;
length = 16 * 256;
break;
default:
throw new InvalidOperationException("Unsupported font height.");
}
var ptr = memory.GetPointer(PhysicalMemory.FontSegment, offset);
System.Runtime.InteropServices.Marshal.Copy(ptr, this.Font, 0, length);
}
