PIC RAM Declaration

[Suraj143]

I have to declare 200 RAM locations

I'm going to declare like this.

        cblock
        P1:200
        endc

After that can I load values like this?

        movlw    .15
        movwf    P100
        movlw    .56
        movwf    P196

Does the RAM names will asign like this P1,P2,...P100,P200 ??

The other problem is, the RAMS comes from 3 banks.

1st 40 bytes from 0C9h-0EF = 40bytes
2nd 80 bytes from 120h-16Fh = 80 bytes
3rd 80 bytes from 1A0h-1EFh = 80bytes

 

[DrG]

If I am understanding you, no you can't do that. Without an address, cblock is 0. P1 assigns the constant 0 to symbol P1.
P100 will be undefined because you have not assigned a label to an address.

I think you could do:

movwf P1+100 which would add 100 to the constant assigned to P1 (which is 0).

see https://ww1.microchip.com/downloads/en/devicedoc/33014j.pdf p55