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Consider the following table that represents part of the memory of a 16-bit address space that has an addressability of 2 bytes (like LC-3): ADDRESS OxFFFF OXOCOE OXOCOD OXOCOC OXOCOB OXOCOA Ox0C09 *.** 0x0000 CONTENTS 1111 1111 1111 1111 *** 1111 1110 1101 1100 0001 1011 1100 0101 0110 0101 1000 0111 1100 0000 0100 0000 0011 0001 0101 0010 0000 1100 0000 1101 0000 0000 0000 0000 The table above shows the addresses in hex (base 16) and the contents at the corresponding address in binary (base 2). A.) What are the contents in hex of the memory location at following address in binary: 0000 1100 0000 1110? (Enter hex like the following example: Ox2A3F) In all computer models, the contents of a memory location can be interpreted as data. C.) Interpret the contents at address OxOCOA as two ASCII characters. B.) Interpret the contents at address Ox0000 as a two's complement integer in base 10. D.) Interpret the contents at the same address as C.) above as an unsigned integer in base 10. In the von Neumann model, the contents of a memory location can also be interpreted as an instruction. E.) Interpret the contents at address OxOCOB as an LC-3 instruction to determine the operation. (Enter either ADD, JMP, LDR, or OTHER if it is not one of the first 3) F.) Interpret the contents at address OxOCOC as an LC-3 instruction to determine the operation. (Enter either ADD, JMP, LDR, or OTHER if it is not one of the first 3) A memory location can store an address. We call that memory location's contents a "pointer" since it's an address that "points" to another memory loca G.) Interpret the contents at address Ox0C09 as a pointer.

Consider the following table that represents part of the memory of a 16-bit address space that has an addressability of 2 bytes (like LC-3): ADDRESS OxFFFF OXOCOE OXOCOD OXOCOC OXOCOB OXOCOA Ox0C09 *.** 0x0000 CONTENTS 1111 1111 1111 1111 *** 1111 1110 1101 1100 0001 1011 1100 0101 0110 0101 1000 0111 1100 0000 0100 0000 0011 0001 0101 0010 0000 1100 0000 1101 0000 0000 0000 0000 The table above shows the addresses in hex (base 16) and the contents at the corresponding address in binary (base 2). A.) What are the contents in hex of the memory location at following address in binary: 0000 1100 0000 1110? (Enter hex like the following example: Ox2A3F) In all computer models, the contents of a memory location can be interpreted as data. C.) Interpret the contents at address OxOCOA as two ASCII characters. B.) Interpret the contents at address Ox0000 as a two's complement integer in base 10. D.) Interpret the contents at the same address as C.) above as an unsigned integer in base 10. In the von Neumann model, the contents of a memory location can also be interpreted as an instruction. E.) Interpret the contents at address OxOCOB as an LC-3 instruction to determine the operation. (Enter either ADD, JMP, LDR, or OTHER if it is not one of the first 3) F.) Interpret the contents at address OxOCOC as an LC-3 instruction to determine the operation. (Enter either ADD, JMP, LDR, or OTHER if it is not one of the first 3) A memory location can store an address. We call that memory location's contents a "pointer" since it's an address that "points" to another memory loca G.) Interpret the contents at address Ox0C09 as a pointer.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Consider the following table that represents part of the memory of a 16-bit address space that has an addressability of 2 bytes (like LC-3): ADDRESS OxFFFF OXOCOE OXOCOD OXOCOC OXOCOB OXOCOA Ox0C09 0x0000 The table above shows the addresses in hex (base 16) and the contents at the corresponding address in binary (base 2). A.) What are the contents in hex of the memory location at following address in binary: 0000 1100 0000 1110? (Enter hex like the following example: 0x2A3F) In all computer models, the contents of a memory location can be interpreted as data. B.) Interpret the contents at address Ox0000 as a two's complement integer in base 10. C.) Interpret the contents at address OxOCOA as two ASCII characters. D.) Interpret the contents at the same address as C.) above as an unsigned integer in base 10. In the von Neumann model, the contents of a memory location can also be interpreted as an instruction. E.) Interpret the contents at address OxOCOB as an LC-3 instruction to determine the operation. (Enter either ADD, JMP, LDR, or OTHER if it is not one of the first 3) REFERENCE: F.) Interpret the contents at address OxOCOC as an LC-3 instruction to determine the operation. (Enter either ADD, JMP, LDR, or OTHER if it is not one of the first 3) Partial Table of Hex to ASCII Characters: A memory location can store an address. We call that memory location's contents a "pointer" since it's an address that "points" to another memory location. G.) Interpret the contents at address Ox0C09 as a pointer. (Enter hex like the following example: 0x2A3F) 20 sp 21 ! 22 " 23 # 24 $ H.) What are the contents of the memory location that the pointer above is pointing to? (Enter hex like the following example: Ox2A3F) CONTENTS 1111 1111 1111 1111 30 0 31 1 32 2 33 3 34 4 ADD 0x1 JMP 0xC LDR 0x6 1111 1110 1101 1100 0001 1011 1100 0101 0110 0101 1000 0111 1100 0000 0100 0000 0011 0001 0101 0010 0000 1100 0000 1101 40 @ 41 A 42 B 43 C 44 D Table of LC-3 Opcodes in Hex: 0000 0000 0000 0000 50 P 51 Q 52 R 53 S 54 T 60- 61 a 62 b 63 c 64 d 70 p 71 q 72 r 73 s 74 t
Transcribed Image Text:Consider the following table that represents part of the memory of a 16-bit address space that has an addressability of 2 bytes (like LC-3): ADDRESS OxFFFF OXOCOE OXOCOD OXOCOC OXOCOB OXOCOA Ox0C09 0x0000 The table above shows the addresses in hex (base 16) and the contents at the corresponding address in binary (base 2). A.) What are the contents in hex of the memory location at following address in binary: 0000 1100 0000 1110? (Enter hex like the following example: 0x2A3F) In all computer models, the contents of a memory location can be interpreted as data. B.) Interpret the contents at address Ox0000 as a two's complement integer in base 10. C.) Interpret the contents at address OxOCOA as two ASCII characters. D.) Interpret the contents at the same address as C.) above as an unsigned integer in base 10. In the von Neumann model, the contents of a memory location can also be interpreted as an instruction. E.) Interpret the contents at address OxOCOB as an LC-3 instruction to determine the operation. (Enter either ADD, JMP, LDR, or OTHER if it is not one of the first 3) REFERENCE: F.) Interpret the contents at address OxOCOC as an LC-3 instruction to determine the operation. (Enter either ADD, JMP, LDR, or OTHER if it is not one of the first 3) Partial Table of Hex to ASCII Characters: A memory location can store an address. We call that memory location's contents a "pointer" since it's an address that "points" to another memory location. G.) Interpret the contents at address Ox0C09 as a pointer. (Enter hex like the following example: 0x2A3F) 20 sp 21 ! 22 " 23 # 24 $ H.) What are the contents of the memory location that the pointer above is pointing to? (Enter hex like the following example: Ox2A3F) CONTENTS 1111 1111 1111 1111 30 0 31 1 32 2 33 3 34 4 ADD 0x1 JMP 0xC LDR 0x6 1111 1110 1101 1100 0001 1011 1100 0101 0110 0101 1000 0111 1100 0000 0100 0000 0011 0001 0101 0010 0000 1100 0000 1101 40 @ 41 A 42 B 43 C 44 D Table of LC-3 Opcodes in Hex: 0000 0000 0000 0000 50 P 51 Q 52 R 53 S 54 T 60- 61 a 62 b 63 c 64 d 70 p 71 q 72 r 73 s 74 t
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