To widen an -bit two's complement integer to bits, preserve the original low bits and fill the new high positions with the old sign bit . The change in signed positional weights is , so the represented signed value is unchanged. Zero extension instead preserves the unsigned interpretation, and changes the signed value of negative inputs.
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Sign extension is a process used in computer architecture and programming to extend the bit width of a binary number while preserving its sign and value. This is particularly important when converting a smaller signed integer type to a larger signed integer type. ### Overview: - **Signed Numbers Representation**: Signed integers are typically represented in binary using two's complement notation.