Hi all
I red the question and Ans: about
"register question"i have another cofusion of register address just like
for example:

mov a,00h
add a,r0

we know that reg: R0 holds the value of 00h in internal ram but as we see the block diagrame or ram arrangement in 8051. there we see at the end these four banks byte address 00h to 1fh,a new address starts from 20 to 2f , where ram again starts from 00h to78h why these two locations have same addres .I mean 00h is the address of r0 and at byte address 20 also holds the value 00h ,01h ,02h,03h and so on



i know this question is verty initial but for my satisfaction plz i ask this question to very senior programmer he told me that assembler can identify these locations weather it is register address or g/p ram address.

thanks
irfan