W
Warren Thai
with the 18f chip, if i have to files AH,AL to represent one number and
BH,BL for another. (H and L are hi and lo obviously), how would i use the
instruction set to add and subtract a and b and taking care of the carry and
borrow bits. im thinking, with addition, you add the lo first and add the hi
with carry. with subtraction, you subtract hi first and then lo with borrow.
is this correct?
BH,BL for another. (H and L are hi and lo obviously), how would i use the
instruction set to add and subtract a and b and taking care of the carry and
borrow bits. im thinking, with addition, you add the lo first and add the hi
with carry. with subtraction, you subtract hi first and then lo with borrow.
is this correct?