4 ms·
The problem on computers is that "one's complement" needs "end around carry" which makes your adds take twice as long.
by bsder 3y ago
The problem on computers is that "one's complement" needs "end around carry" which makes your adds take twice as long.
- masswerk 3y agoI think, it wasn't so much for speed as for then expensive extra circuitry. (On the few vintage instruction sets using ones' complement, I know, addition and subtraction still executes in the same time as any other internal ALU instruction. Then, cycle times were still mostly owed to slow core memory cycles and the fasted you'd ever get was a single memory cycle.)