public void randomiseRegisters()
{
for (int index = CMemory.HexToInt("83E4"); index <= CMemory.HexToInt("83EB"); ++index)
{
this.memory[index].signifBit = (byte)this.random.Next(15);
this.memory[index].lowerBit = (byte)this.random.Next(15);
}
}
public CMemory(ref CPPI _PPI)
{
this.PPI = _PPI;
this.flagReg.S = false;
this.flagReg.Z = false;
this.flagReg.AC = false;
this.flagReg.P = false;
this.flagReg.C = false;
CMemory.MEM_SIZE = CMemory.HexToInt("FFFF") + 1;
CMemory.USER_MEM_ST = CMemory.HexToInt("8000");
CMemory.USER_MEM_END = CMemory.HexToInt("83C6");
this.memory = new Cell[CMemory.MEM_SIZE];
this.random = new Random(54321);
this.randomiseMemory();
}
public void getRegEntry(string regEntr, ref int sigDigit, ref int lowDigit)
{
regEntr.ToUpper();
string strHex;
switch (regEntr)
{
case "A":
strHex = "83EB";
break;
case "F":
strHex = "83EA";
break;
case "B":
strHex = "83E9";
break;
case "C":
strHex = "83E8";
break;
case "D":
strHex = "83E7";
break;
case "E":
strHex = "83E6";
break;
case "H":
strHex = "83E5";
break;
case "L":
strHex = "83E4";
break;
default:
strHex = regEntr;
break;
}
int index = CMemory.HexToInt(strHex);
sigDigit = (int)this.memory[index].signifBit;
lowDigit = (int)this.memory[index].lowerBit;
}
public void changeRegEntry(int regEntr, int sigDigit, int lowDigit)
{
string strHex = "";
switch (regEntr)
{
case 0:
strHex = "83E9";
break;
case 1:
strHex = "83E8";
break;
case 2:
strHex = "83E7";
break;
case 3:
strHex = "83E6";
break;
case 4:
strHex = "83E5";
break;
case 5:
strHex = "83E4";
break;
case 6:
strHex = this.getRegPair("83E5", "83E4");
break;
case 7:
strHex = "83EB";
break;
case 8:
strHex = "83EA";
break;
}
int index = CMemory.HexToInt(strHex);
this.memory[index].signifBit = (byte)sigDigit;
this.memory[index].lowerBit = (byte)lowDigit;
}
public void getMemoryValue(string memPos, ref int signifDigit, ref int loverDigit)
{
int index = CMemory.HexToInt(memPos);
if (index == 250)
{
int aword = this.PPI.getAword();
signifDigit = aword >> 4;
loverDigit = aword & 15;
this.PPI.setAword((int)byte.MaxValue);
}
else
{
signifDigit = (int)this.memory[index].signifBit;
loverDigit = (int)this.memory[index].lowerBit;
}
}
public void changeRegEntry(string regEntr, int sigDigit, int lowDigit)
{
regEntr.ToUpper();
string strHex = "";
switch (regEntr)
{
case "A":
strHex = "83EB";
break;
case "F":
strHex = "83EA";
break;
case "B":
strHex = "83E9";
break;
case "C":
strHex = "83E8";
break;
case "D":
strHex = "83E7";
break;
case "E":
strHex = "83E6";
break;
case "H":
strHex = "83E5";
break;
case "L":
strHex = "83E4";
break;
}
int index = CMemory.HexToInt(strHex);
this.memory[index].signifBit = (byte)sigDigit;
this.memory[index].lowerBit = (byte)lowDigit;
}
public void setMemoryValue(string memPos, int signifDigit, int loverDigit)
{
int index1 = CMemory.HexToInt(memPos);
this.memory[index1].signifBit = (byte)signifDigit;
this.memory[index1].lowerBit = (byte)loverDigit;
int val = signifDigit << 4 | loverDigit;
if (index1 == 251)
{
string bit = CMemory.IntToBit((long)val);
for (int index2 = 0; index2 < 8; ++index2)
{
this.PPI.setLamp(7 - index2, index2 < bit.Length && (int)bit[bit.Length - index2 - 1] == 49);
}
}
if (index1 != 252)
{
return;
}
this.PPI.setCword(val);
}
public bool isClientRegion(string hex)
{
int num = CMemory.HexToInt(hex);
return(num >= CMemory.USER_MEM_ST && num <= CMemory.USER_MEM_END || num >= CMemory.HexToInt("83E4") && num <= CMemory.HexToInt("83EB"));
}