public void updateViewElements(short nextInstructionPreview, CPU cpu, Memory memory)
{
//Base for register value view
int BASE = 16; //Only supports 2, 8, 10, 16
String prefix = "0x";
this.valueA.Text = prefix + (Convert.ToString(cpu.getRegisterValue(0), BASE).PadLeft(8, '0'));
this.valueB.Text = prefix + (Convert.ToString(cpu.getRegisterValue(1), BASE).PadLeft(8, '0'));
this.valueAcc.Text = prefix + (Convert.ToString(cpu.getRegisterValue(2), BASE).PadLeft(8, '0'));
this.valueZero.Text = prefix + (Convert.ToString(cpu.getRegisterValue(3), BASE).PadLeft(8, '0'));
this.valueOne.Text = prefix + (Convert.ToString(cpu.getRegisterValue(4), BASE).PadLeft(8, '0'));
this.valuePC.Text = prefix + (Convert.ToString(cpu.getRegisterValue(5), BASE).PadLeft(8, '0'));
this.valueMAR.Text = prefix + (Convert.ToString(cpu.getRegisterValue(6), BASE).PadLeft(8, '0'));
this.valueMDR.Text = prefix + (Convert.ToString(cpu.getRegisterValue(7), BASE).PadLeft(8, '0'));
this.valueTEMP.Text = prefix + (Convert.ToString(cpu.getRegisterValue(8), BASE).PadLeft(8, '0'));
this.valueIR.Text = prefix + (Convert.ToString(cpu.getRegisterValue(9), BASE).PadLeft(8, '0'));
this.valueCC.Text = prefix + (Convert.ToString(cpu.getRegisterValue(10), BASE).PadLeft(8, '0'));
//Show current instruction index
updateInstructionIndex(cpu.getRegisterValue(5), memory.getInstructions().Count);
//Show current instruction code
updateNextInstruction(nextInstructionPreview, cpu.isDone());
int total = memory.hitCount + memory.missCount;
this.hitsValue.Text = memory.hitCount + "";
this.missesValue.Text = memory.missCount + "";
this.missrateValue.Text = ((float)memory.missCount / total) + "";
this.hitrateValue.Text = ((float)memory.hitCount / total) + "";
}
/*
* - ADD $m Add the value in memory to the accumulator
* - ADD #$val Add the value to the accumulator
*/
private static void ADD(CPU cpu, Boolean immediate, short operand)
{
short acc = cpu.getRegisterValue(2);
if (immediate)
{
cpu.setRegisterValue(2, (short)(acc + operand));
}
else
{
short value = (short)cpu.getMemory().getMemoryLocation(operand);
cpu.setRegisterValue(2, (short)(acc + value));
}
}
/*
* - STA $m Store the accumulator to a memory location
*/
private static void STA(CPU cpu, short operand)
{
int acc = (int)(cpu.getRegisterValue(2)); //Get accumulator value
cpu.getMemory().setMemoryLocation(operand, acc);
}
/*
* - SHL #$val Shift the accumulator by the number of bits to the left
*/
private static void SHL(CPU cpu, short operand)
{
short acc = cpu.getRegisterValue(2);
cpu.setRegisterValue(2, (short)(acc << operand));
}
/*
* - NOTA Logical "not" of accumulator
*/
private static void NOTA(CPU cpu)
{
short acc = cpu.getRegisterValue(2);
cpu.setRegisterValue(2, (short)~cpu.getRegisterValue(2));
}
/*
* - BL lbl Branch to label if operation resulted in Negative
*/
private static void BL(CPU cpu, short operand)
{
short acc = cpu.getRegisterValue(2);
if (acc < 0)
{
cpu.setRegisterValue(5, operand);
}
}