is a > b ? how?

[Bear]

Hi,

i am new to pics and programming altogether, but learning.

Can anyone tell me how to test if, for example, W>a_file. ?

I just want to test this and if true, jump out of the loop.

Thanks,

Bear

 

[Exo]

    SUBWF  MyFile, W     ;subtract W from the file
    BTFSS  STATUS, C     ;Test for borrow (NOT carry)
    GOTO   WBigger       ;W was bigger then file
    ;W was smaller or equal to file

This sample subtracts W from the content of MyFile. If W is bigger then MyFile then there will be an underflow of MyFile and the borrow flag will be set. On a pic borrow is opposite of carry (so carry is clear on borrow and set on no borrow).
We test for the flag and jump accordingly