Conversion from one code to another Step 1: check the Msb(sign-bit); For positive number (msb=0): no changes Step 2: For negative number (MSB=1) first change its sign by the former code way then change its sign by the next code wayConversion: from one code to another Step 1: check the MSB (sign-bit) ; For positive number (MSB =0) : no changes! Step 2: For negative number (MSB =1) : first change its sign by the former code way; then change its sign by the next code way !