Integers: signed magnitude
Signed magnitude
Reserve one particular bit for the sign.
Sign bit: If msb is 0, then positive value, if msb is 1, then negative value.
Converting base 10 to N-bit signed magnitude (SM):
1. Ignoring sign, convert base 10 value to binary.
2. If less than (N-1) bits, pad rest of bits to (N-1) with 0.
3. If negative, set msb to 1.