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A value that is outside the range of the minimum and maximum above, for any of these datatypes, causes overflow. Overflow can sometimes happen inadvertently, when you try to add two values that are in range but your result is out of range. Take the code below: unsigned byte y, i, j; y = i + j; The variables y, i, and j are all "unsigned byte" and use the same number of bits. If i and j are in the acceptable range for an unsigned byte, but their sum is out of range, y will overflow. Overflow is handled differently in unsigned vs. signed addition. In unsigned addition, overflow happens if there is an extra carry bit on the left. In signed addition, we immediately drop any extra carry bits on the left, and the signs of our operands and the sign of our result. If we add two positives and get a negative, or two negatives and get a positive, we overflow. We will now test some of these "boundary" cases. 2. Assume we run the code above. For each row, assuming i and j hold the specified binary values, perform binary addition, and indicate the resulting value of y in binary. Please show and attach all work, and supply final answers in the table. Additionally, indicate if overflow was present. i (8 bits) 01000000 01000000 10000000 j (8 bits) 01000000 10000000 10000000 y (8 bits) Overflow? Mark one yes/no yes/no yes/no

A value that is outside the range of the minimum and maximum above, for any of these datatypes, causes overflow. Overflow can sometimes happen inadvertently, when you try to add two values that are in range but your result is out of range. Take the code below: unsigned byte y, i, j; y = i + j; The variables y, i, and j are all "unsigned byte" and use the same number of bits. If i and j are in the acceptable range for an unsigned byte, but their sum is out of range, y will overflow. Overflow is handled differently in unsigned vs. signed addition. In unsigned addition, overflow happens if there is an extra carry bit on the left. In signed addition, we immediately drop any extra carry bits on the left, and the signs of our operands and the sign of our result. If we add two positives and get a negative, or two negatives and get a positive, we overflow. We will now test some of these "boundary" cases. 2. Assume we run the code above. For each row, assuming i and j hold the specified binary values, perform binary addition, and indicate the resulting value of y in binary. Please show and attach all work, and supply final answers in the table. Additionally, indicate if overflow was present. i (8 bits) 01000000 01000000 10000000 j (8 bits) 01000000 10000000 10000000 y (8 bits) Overflow? Mark one yes/no yes/no yes/no

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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A value that is outside the range of the minimum and maximum above, for any of these datatypes, causes overflow. Overflow can sometimes happen inadvertently, when you try to add two values that are in range but your result is out of range. Take the code below: unsigned byte y, i, j; у = i + j; The variables y, i, and j are all "unsigned byte" and use the same number of bits. If i and j are in the acceptable range for an unsigned byte, but their sum is out of range, y will overflow. Overflow is handled differently in unsigned vs. signed addition. In unsigned addition, overflow happens if there is an extra carry bit on the left. In signed addition, we immediately drop any extra carry bits on the left, and check the signs of our operands and the sign of our result. If we add two positives and get a negative, or two negatives and get a positive, we overflow. We will now test some of these "boundary" cases. 2. Assume we run the code above. For each row, assuming i and j hold the specified binary values, perform binary addition, and indicate the resulting value of y in binary. Please show and attach all work, and supply final answers in the table. Additionally, indicate if overflow was present. i (8 bits) 01000000 01000000 10000000 j (8 bits) 01000000 10000000 10000000 y (8 bits) Overflow? Mark one yes/no yes/no yes/no
Transcribed Image Text:A value that is outside the range of the minimum and maximum above, for any of these datatypes, causes overflow. Overflow can sometimes happen inadvertently, when you try to add two values that are in range but your result is out of range. Take the code below: unsigned byte y, i, j; у = i + j; The variables y, i, and j are all "unsigned byte" and use the same number of bits. If i and j are in the acceptable range for an unsigned byte, but their sum is out of range, y will overflow. Overflow is handled differently in unsigned vs. signed addition. In unsigned addition, overflow happens if there is an extra carry bit on the left. In signed addition, we immediately drop any extra carry bits on the left, and check the signs of our operands and the sign of our result. If we add two positives and get a negative, or two negatives and get a positive, we overflow. We will now test some of these "boundary" cases. 2. Assume we run the code above. For each row, assuming i and j hold the specified binary values, perform binary addition, and indicate the resulting value of y in binary. Please show and attach all work, and supply final answers in the table. Additionally, indicate if overflow was present. i (8 bits) 01000000 01000000 10000000 j (8 bits) 01000000 10000000 10000000 y (8 bits) Overflow? Mark one yes/no yes/no yes/no
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