public EmulatorMain(Dictionary<int, Opcode> program)
{
Program = program;
Register = new Register[16];
for (int i = 0; i < 16; i++)
Register[i] = new Register(i, 0xffff);
Memory = new UInt16[16 * 1024]; // 32K memory
Array.Clear(Memory, 0, 16 * 1024);
Display = new byte[256, 256];
Array.Clear(Display, 0, 256 * 256);
foreach (int address in program.Keys)
{
UInt16[] m = program[address].GetOpcodeMemoryValue();
Array.Copy(m, 0, Memory, address, m.Length);
}
}
public EmulatorMain(UInt16[] memory)
{
Register = new Register[16];
for (int i = 0; i < 16; i++)
Register[i] = new Register(i, 0xffff);
Memory = memory;
Display = new byte[256, 256];
Array.Clear(Display, 0, 256 * 256);
UInt16 o;
Opcode op;
Program = new Dictionary<int, Opcode>();
for (int address = 0; address < 32768; address += 2)
{
o = Convert.ToUInt16((Memory[address + 1] << 8) | Memory[address]);
op = OpcodeDictionary.Get(o);
Program.Add(address, op);
}
}
private bool CheckIsRegister(string s, out Register r)
{
r = null;
bool b = RegisterDictionary.Contains(s);
if (b)
r = RegisterDictionary.Get(s);
return b;
}
private void DisplayRegisters(Register[] list)
{
Program.MainWindow.lstRegister.Items.Clear();
foreach (Register reg in list)
Program.MainWindow.lstRegister.Items.Add(reg.ListViewItem);
}
public object Clone()
{
Register r = new Register(Number, 0);
return r;
}
// Display
private void SetDisplayPixel(Register reg1, Register reg2, Register reg3)
{
// Set the new Pixel value
int oldColor = Display[reg1.Value.UValue, reg2.Value.UValue];
Display[reg1.Value.UValue, reg2.Value.UValue] = (byte)reg3.Value.UValue;
// Moved to wait command to emulate the VSync
FireDisplayMemoryChanged(reg1.Value.UValue, reg2.Value.UValue, oldColor, reg3.Value.UValue);
// Return the previous Pixel value
UInt16 oldValue = reg3.Value.UValue;
reg3.Value.UValue = (ushort)oldColor;
FireRegisterChanged(reg3, oldValue);
}
private void FireRegisterChanged(Register register, int oldvalue)
{
if (register.Value.SValue == oldvalue || register.Value.UValue == oldvalue)
return;
RegisterChangedEventArgs args = new RegisterChangedEventArgs();
args.Register = register;
OnRegisterChanged(args);
}