/// <summary>
/// Initializes a new instance of the <see cref="Processor"/> class.
/// </summary>
/// <param name="parsedInstruction">Parsed instruction.</param>
/// <param name="memory">Memory.</param>
/// <param name="alu">ALU.</param>
/// <param name="state">Processor state.</param>
public Processor(IParsedInstruction parsedInstruction, IEmulatedMemory memory, IALU alu, IProcessorState state)
{
this.parsedInstruction = parsedInstruction;
this.memory = memory;
this.alu = alu;
this.state = state;
}
/// <inheritdoc/>
public override void PerformAction(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu)
{
ushort addressA = (ushort)state.Registers[instruction.Register1];
ushort addressB = (ushort)state.Registers[instruction.Register2];
byte a = 0;
byte b = 0;
for (ushort i = 0; i < instruction.Immediate; i++)
{
a = (byte)memory.GetValue(0, (ushort)(addressA + i));
b = (byte)memory.GetValue(0, (ushort)(addressB + i));
if (a != b)
{
break;
}
}
state.High = a > b;
state.Equal = a == b;
state.Low = !state.High;
}
/// <inheritdoc/>
public override void PerformAction(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu)
{
alu.PerformAction(this.calculation, instruction.Immediate);
}
/// <inheritdoc/>
public void PutData(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu,
long value)
{
memory.SetValue(instruction.Width, (ulong)value, instruction.Address);
}
/// <inheritdoc/>
public void PutData(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu,
long value)
{
memory.SetValue(instruction.Width, (ulong)value, (ushort)state.Registers[instruction.Register1]);
}
/// <inheritdoc/>
public void PutData(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu,
long value)
{
state.ProgramCounter = (ushort)value;
}
/// <inheritdoc/>
public void PutData(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu,
long value)
{
state.Registers[instruction.Register2] = value;
}
/// <inheritdoc/>
public void PutData(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu,
long value)
{
throw new NotImplementedException();
}
/// <inheritdoc/>
public void PutData(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu,
long value)
{
alu.StageValue(0, value);
}
/// <inheritdoc/>
public override void PerformAction(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu)
{
long value = this.from.GetData(instruction, memory, state, alu);
this.to.PutData(instruction, memory, state, alu, value);
}
/// <inheritdoc/>
public override void PerformAction(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu)
{
if (state.Low & this.low || state.Equal & this.equal || state.High & this.high)
{
this.action.PerformAction(instruction, memory, state, alu);
}
}
/// <inheritdoc/>
public override void PerformAction(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu)
{
long a = state.Registers[instruction.Register1];
long b = state.Registers[instruction.Register2];
state.High = a > b;
state.Equal = a == b;
state.Low = !state.High;
}
/// <inheritdoc/>
public long GetData(IParsedInstruction instruction, IEmulatedMemory memory, IProcessorState state, IALU alu)
{
return(state.Registers[instruction.Register2]);
}
/// <summary>
/// Performs actions.
/// </summary>
/// <param name="instruction">Parsed instruction.</param>
/// <param name="memory">Memory.</param>
/// <param name="state">Processor state.</param>
/// <param name="alu">ALU.</param>
public void PerformActions(IParsedInstruction instruction, IEmulatedMemory memory, IProcessorState state, IALU alu)
{
foreach (var action in this.actions)
{
action.PerformAction(instruction, memory, state, alu);
}
}
/// <inheritdoc/>
public long GetData(IParsedInstruction instruction, IEmulatedMemory memory, IProcessorState state, IALU alu)
{
return((long)memory.GetValue(instruction.Width, (ushort)state.Registers[instruction.Register1]));
}
/// <inheritdoc/>
public long GetData(IParsedInstruction instruction, IEmulatedMemory memory, IProcessorState state, IALU alu)
{
return(state.ProgramCounter + instruction.Offset);
}
/// <inheritdoc/>
public long GetData(IParsedInstruction instruction, IEmulatedMemory memory, IProcessorState state, IALU alu)
{
return(instruction.Address);
}
/// <inheritdoc/>
public long GetData(IParsedInstruction instruction, IEmulatedMemory memory, IProcessorState state, IALU alu)
{
return((long)memory.GetValue(instruction.Width, instruction.Address));
}
/// <summary>
/// Performs processor action.
/// </summary>
/// <param name="instruction">Parsed instruction.</param>
/// <param name="memory">Memory.</param>
/// <param name="state">Processor state.</param>
/// <param name="alu">ALU.</param>
public abstract void PerformAction(
IParsedInstruction instruction,
IEmulatedMemory memory,
IProcessorState state,
IALU alu);
