hi,
Under the delay(label) there is code.
Correct! I asked about this code exactly.
So if there is real code there then all should work.
Moreover, I tested it now myself and for AT89C51 with OSC=12Mhz such loop produce about 2 seconds delay. So I cannot reproduce your problem, sorry.

Only one thing I may suggest you, is check it with debugger yourself. Compile it, start debugger, set breakpoints before and after this loop and calculate time which the loop takes.



Regards,
Oleg