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Introduction to Computer Engineering by Richard E. Haskell 8086 Memory Module M14.1 Sections 9.3.

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Presentation on theme: "Introduction to Computer Engineering by Richard E. Haskell 8086 Memory Module M14.1 Sections 9.3."— Presentation transcript:

1 Introduction to Computer Engineering by Richard E. Haskell 8086 Memory Module M14.1 Sections 9.3

2 Introduction to Computer Engineering by Richard E. Haskell Computing 20-Bit Address 0 1 0 0 1 0 1 1 0 1 0 0 1 0 0 1 0 0 0 0 0 1 0 0 1 0 0 1 0 0 1 0 1 1 0 1 0 1 0 0 1 1 1 1 1 1 0 1 1 0 1 1 1 1 0 1 16-bit segment address 16-bit offset address 20-bit actual or effective address + 4B49 + 492D 4FDBD Segment address Offset address Actual address

3 Introduction to Computer Engineering by Richard E. Haskell 8086 Segments Segment address Offset addresses within segment

4 Introduction to Computer Engineering by Richard E. Haskell What is the missing segment address? 264F:18D3 = _________:6543 264F 18D3 27DC3 -6543 2188 264F:18D3 = 2188:6543

5 Introduction to Computer Engineering by Richard E. Haskell What is the missing offset address? 264F:18D3 = 1A47:_________ 264F 18D3 27DC3 -1A47 D953 264F:18D3 = 1A47:D953

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