private void MoveToInstruction(VMStackFrame frame, byte instruction, bool continueExecution)
{
if (frame is VMRoutingFrame)
{
//TODO: Handle returning false into the pathfinder (indicates failure)
return;
}
ContinueExecution = continueExecution;
switch (instruction)
{
case 255:
Pop(VMPrimitiveExitCode.RETURN_FALSE);
break;
case 254:
Pop(VMPrimitiveExitCode.RETURN_TRUE); break;
case 253:
//attempt to continue along only path available.
if (frame.GetCurrentInstruction().TruePointer != 253)
{
MoveToInstruction(frame, frame.GetCurrentInstruction().TruePointer, continueExecution); return;
}
else if (frame.GetCurrentInstruction().FalsePointer != 253)
{
MoveToInstruction(frame, frame.GetCurrentInstruction().FalsePointer, continueExecution); return;
}
Pop(VMPrimitiveExitCode.ERROR); break;
default:
frame.InstructionPointer = instruction;
if (frame.GetCurrentInstruction().Breakpoint ||
(ThreadBreak != VMThreadBreakMode.Active && (
ThreadBreak == VMThreadBreakMode.StepIn ||
(ThreadBreak == VMThreadBreakMode.StepOver && Stack.Count - 1 <= BreakFrame) ||
(ThreadBreak == VMThreadBreakMode.StepOut && Stack.Count <= BreakFrame)
)))
{
string result = "Unknown Break";
switch (ThreadBreak)
{
case VMThreadBreakMode.StepIn:
result = "Stepped In."; break;
case VMThreadBreakMode.StepOut:
result = "Stepped Out."; break;
case VMThreadBreakMode.StepOver:
result = "Stepped Over."; break;
}
Breakpoint(frame, result);
}
break;
}
ContinueExecution = (ThreadBreak != VMThreadBreakMode.Pause) && ContinueExecution;
}
private void ExecuteInstruction(VMStackFrame frame)
{
var instruction = frame.GetCurrentInstruction();
var opcode = instruction.Opcode;
if (opcode >= 256)
{
ExecuteSubRoutine(frame, opcode, (VMSubRoutineOperand)instruction.Operand);
return;
}
var primitive = VMContext.Primitives[opcode];
if (primitive == null)
{
HandleResult(frame, instruction, VMPrimitiveExitCode.GOTO_TRUE);
return;
}
VMPrimitiveHandler handler = primitive.GetHandler();
var result = handler.Execute(frame, instruction.Operand);
HandleResult(frame, instruction, result);
}
private void ExecuteInstruction(VMStackFrame frame)
{
var instruction = frame.GetCurrentInstruction();
var opcode = instruction.Opcode;
if (opcode >= 256)
{
BHAV bhav = null;
GameObject CodeOwner;
if (opcode >= 8192)
{
// Semi-Global sub-routine call
bhav = frame.ScopeResource.SemiGlobal.Get <BHAV>(opcode);
}
else if (opcode >= 4096)
{
// Private sub-routine call
bhav = frame.ScopeResource.Get <BHAV>(opcode);
}
else
{
// Global sub-routine call
//CodeOwner = frame.Global.Resource;
bhav = frame.Global.Resource.Get <BHAV>(opcode);
}
CodeOwner = frame.CodeOwner;
var operand = (VMSubRoutineOperand)instruction.Operand;
ExecuteSubRoutine(frame, bhav, CodeOwner, operand);
if (Stack.LastOrDefault().GetCurrentInstruction().Breakpoint || ThreadBreak == VMThreadBreakMode.StepIn)
{
Breakpoint(frame);
ContinueExecution = false;
}
else
{
ContinueExecution = true;
}
return;
}
var primitive = Context.Primitives[opcode];
if (primitive == null)
{
//throw new Exception("Unknown primitive!");
HandleResult(frame, instruction, VMPrimitiveExitCode.GOTO_TRUE);
return;
//Pop(VMPrimitiveExitCode.ERROR);
}
VMPrimitiveHandler handler = primitive.GetHandler();
var result = handler.Execute(frame, instruction.Operand);
HandleResult(frame, instruction, result);
}
void ExecuteInstruction(VMStackFrame frame)
{
var instruction = frame.GetCurrentInstruction();
var opcode = instruction.Opcode;
if (opcode >= 256)
{
VMRoutine bhav = null;
GameObject CodeOwner;
if (opcode >= 8192)
{
// Semi-Global sub-routine call
bhav = (VMRoutine)frame.ScopeResource.SemiGlobal.GetRoutine(opcode);
}
else if (opcode >= 4096)
{
// Private sub-routine call
bhav = (VMRoutine)frame.ScopeResource.GetRoutine(opcode);
}
else
{
// Global sub-routine call
//CodeOwner = frame.Global.Resource;
bhav = (VMRoutine)frame.Global.Resource.GetRoutine(opcode);
}
CodeOwner = frame.CodeOwner;
var operand = (VMSubRoutineOperand)instruction.Operand;
ExecuteSubRoutine(frame, bhav, CodeOwner, operand);
#if IDE_COMPAT
if (Stack.LastOrDefault().GetCurrentInstruction().Breakpoint || ThreadBreak == VMThreadBreakMode.StepIn)
{
Breakpoint(frame, "Stepped in.");
ContinueExecution = false;
}
else
#endif
{
ContinueExecution = true;
}
return;
}
var primitive = VMContext.Primitives[opcode];
if (primitive == null)
{
HandleResult(frame, instruction, VMPrimitiveExitCode.GOTO_TRUE);
return;
}
VMPrimitiveHandler handler = primitive.GetHandler();
var result = handler.Execute(frame, instruction.Operand);
HandleResult(frame, instruction, result);
}
private void MoveToInstruction(VMStackFrame frame, byte instruction, bool continueExecution)
{
if (frame is VMRoutingFrame)
{
//TODO: Handle returning false into the pathfinder (indicates failure)
return;
}
switch (instruction)
{
case 255:
Pop(VMPrimitiveExitCode.RETURN_FALSE);
break;
case 254:
Pop(VMPrimitiveExitCode.RETURN_TRUE); break;
case 253:
Pop(VMPrimitiveExitCode.ERROR); break;
default:
frame.InstructionPointer = instruction;
if (frame.GetCurrentInstruction().Breakpoint ||
(ThreadBreak != VMThreadBreakMode.Active && (
ThreadBreak == VMThreadBreakMode.StepIn ||
(ThreadBreak == VMThreadBreakMode.StepOver && Stack.Count - 1 <= BreakFrame) ||
(ThreadBreak == VMThreadBreakMode.StepOut && Stack.Count <= BreakFrame)
)))
{
Breakpoint(frame);
}
break;
}
ContinueExecution = (ThreadBreak != VMThreadBreakMode.Pause) && continueExecution;
}