Two replies have given you the required answers. If the processor had booted up, something ( that you coded for ) must have happened. Obviously in your case nothing seems to have happened?

Some more :

1. You can check the Xtal pins on the MCU with a scope - this will tell you if the oscillator is up and running.

2. Check the ALE pulses with a scope.

3. Write a kind of a tight loop as below:

org 0h

begin: mov a, #0
loop: mov p1.0, a
cpl a
nop
jmp loop

And now probe the pin p1.0 on a scope. Increase or decrease the number of nop's. Enjoy life.( OK Russell had already given one more loop like the above )

Raghu