Hello:

By rewriting a new assembler code in five days, a new servomotor head is finished:

http://www.8052.com/users/Stanley/Servo.wmv

This one moves much smoother, smarter, and faster than the one I made before (if you still remember). It can also be controlled by a DVD player's remote control.

But still, I am facing some problems. I am still in grade 12 and I didn't take any course about assembler programming. For the servomoto head shown above, 7xx lines of assembler code are written. I found it is very very difficult to debug a assembler code longer then serval hundreds. How do you debug yours?

One more question, how do you keep your assembler code? I mean, in what form? When I read those codes I wrote serval months ago, hardly can I understand what I wrote and what those code means. Do you save your code in module? macro? or what?

Thanks~

Stanley