Hey I am studying for my computer exam which is tomorrow, can anyone please store the binary number -39 in an 8-bit register please. No workings needed since I already have some answers but I don't know which of them is right. Thanks
00100111 you need to set the +/- flag as well ;0 some systems use the 2's complement to set a minus so... 11011001 (the 128 bit being the -sense bit, the others being inverted.. it's an odd number so the 1's bit sets odd/even and is also read in forward sense {not inverted}) Different register instruction sets handle this differently as the largest minus number you can have in this system (6502 I used) is -127.. easy to work around by using the overflow functions.
