Hi everyone ,
Craig you are right in fact he was also
angry with me that I always call simon
and make fun out of him but I never want to hurt anyone intentionally or
unintentionally so simon please wait!!!

Ranjit
try this code I have just now written it if you have troubles we'll see .

;tie your ttl transitions to pin 3.2
;the r0 register will get incremented
;and will hold the no of count of your
;interrupts


ea_byte equ 01h ;interrupt enabled


org 0h
sjmp start

org 3h
jnb p3.2,$ ; wait
inc r0 ; use r0 to count # of int0's
reti


start: mov ie,#ea_byte
mov r0,#00h
setb it0 ; int0 is edge sensitive low level only
end

PS:I have not tested it you can test it
and tell if it works or not some work has to be done with it like after a particular count make led glow find bug etc etc.




sanjeev