This is the clasic bad comment written by people force to comment their code. Do it right, You will be glad next year when you need to make changes.

bad, very bad - yes, but not necessarily "by people forced to comment their code". I think to recall that my first venture into '51 assembly had comments like this in a few places, just because I did not recall what all instructions did. NOTE "my first venture into '51 assembly" at that time I was already an avid commenter since I had had the experience of coming back to code written by me 5 yeas earlier.

The problem I had with the '51 assembler initially, was that all assmblesr I had worked with before listed operands source, target but some silly individual at some time decided to make assmblers that went to-from instead of from-to which, in my opinion, made more sense.

Erik