func _loop(thread *rtda.Thread) {
defer _catchErr(thread) // todo
for {
frame := thread.CurrentFrame()
pc := frame.NextPC()
thread.SetPC(pc)
// fetch instruction
method := frame.Method()
if method.Instructions == nil {
method.Instructions = decodeMethod(method.Code())
}
insts := method.Instructions.([]instructions.Instruction)
inst := insts[pc]
instCount := len(insts)
// update nextPC
for {
pc++
if pc >= instCount || insts[pc] != nil {
break
}
}
frame.SetNextPC(pc)
// execute instruction
//_logInstruction(frame, inst)
inst.Execute(frame)
if thread.IsStackEmpty() {
break
}
}
}
func _logFrames(thread *rtda.Thread) {
for !thread.IsStackEmpty() {
frame := thread.PopFrame()
method := frame.Method()
className := method.Class().Name()
lineNum := method.GetLineNumber(frame.NextPC())
fmt.Printf(">> line:%4d pc:%4d %v.%v%v \n",
lineNum, frame.NextPC(), className, method.Name(), method.Descriptor())
}
}