s89.1 Quantization Process and Error For example in fixed-point arithmetic, product a of two b-bit numbers is 2b bits long, which has to be quantized to b bits to fit the prescribed wordlength of the registers In fixed-point arithmetic, addition operation can result in a sum exceeding the register wordlength, causing an overflow 盛· In floating-point arithmetic, there is no overflow, but results of both addition and multiplication may have to be quantized§9.1 Quantization Process and Error • For example in fixed-point arithmetic, product of two b-bit numbers is 2b bits long, which has to be quantized to b bits to fit the prescribed wordlength of the registers • In fixed-point arithmetic, addition operation can result in a sum exceeding the register wordlength, causing an overflow • In floating-point arithmetic, there is no overflow, but results of both addition and multiplication may have to be quantized