Assembly and high-level programming terminology: Contiguous sequences of bytes or words processed as a unit (with instructions like MOVS, CMPS, SCAS on x86) are commonly called ________.
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Adata transfer
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Barithmetic
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Cloops and jumps
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Dstrings
Answer
Correct Answer: strings
Explanation
Introduction / Context:Processors and programming languages provide mechanisms to operate on contiguous blocks of memory. In x86 assembly, a dedicated set of instructions handles such operations efficiently. This question targets the common term used to describe those contiguous sequences.
Given Data / Assumptions:
- Operations may include moving, comparing, scanning, or storing bytes/words/dwords sequentially.
- x86 provides instructions such as MOVS, CMPS, SCAS, STOS, and LODS.
- High-level code often maps to library “string/memory” functions.
Concept / Approach:The umbrella term for contiguous sequences of characters or arbitrary bytes in many contexts is “strings.” While “string” often implies character data, at the instruction-set level it broadly denotes contiguous memory elements processed repetitively.
Step-by-Step Solution:
Identify that the target is a contiguous sequence in memory.Recall x86 “string instructions” that operate with REP prefixes for repeated processing.Match the term used historically in documentation: “strings.”Select “strings.”Verification / Alternative check:Intel and AMD manuals call these “string operations,” covering byte/word/dword sequences independent of textual meaning.
Why Other Options Are Wrong:
data transfer: A general instruction class; not specifically contiguous sequences.arithmetic: Numeric operations, not sequence handling.loops and jumps: Control-flow constructs, not data sequences.Common Pitfalls:Assuming “strings” only mean ASCII text; overlooking that string ops also manipulate arbitrary memory blocks.
Final Answer:strings