VmStackFrame(Address src, VmStackReader reader, Address ip) { this.sfMethod = reader.getMethod(src); this.sfCompiledCode = reader.getCompiledCode(src); this.sfReturnAddress = reader.getReturnAddress(src); this.sfInstructionPointer = ip;
VmStackFrame(VmMethod method, int programCounter) { this.sfMethod = method; this.programCounter = programCounter;
	VmStackFrame(Address src, VmStackReader reader, Address ip) {		this.sfMethod = reader.getMethod(src);		this.sfCompiledCode = reader.getCompiledCode(src);		this.sfReturnAddress = reader.getReturnAddress(src);		this.sfInstructionPointer = ip;	}