segment register

collocation in English

meaningsofsegmentandregister

These words are often used together. Click on the links below to explore the meanings. Or,see other collocations withsegment.
segment
noun[C]
uk
/ˈseɡ.mənt/us
/ˈseɡ.mənt/
one of the smaller groups or amounts that a larger group or amount can be ...
See more atsegment
register
noun
uk
/ˈredʒ.ɪ.stər/us
/ˈredʒ.ə.stɚ/
a book or record containing a list ...
See more atregister

(Definition ofsegmentandregisterfrom theCambridge English Dictionary© Cambridge University Press)

Examplesofsegment register

These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
For data accesses, thesegmentregistercan be explicitly specified (using a segment override prefix) to use any of the four segment registers.
From
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Then 24 bits from thesegmentregisterreplace those four bits, producing a 52-bit address.
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Thesegmentregisteracts as an index into a table, which provides an offset to be added to the virtual address.
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The selector must generally be loaded into a "segmentregister" to be used.
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Therefore, loading segment registers is much slower in protected mode than in real mode, and changing segments very frequently is to be avoided.
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In the flat memory model all segments (segment registers) are generally set to zero, and only offsets are variable.
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The original 8086 family of processors relied heavily on segment registers to overcome limitations associated with addressing "large" amounts of memory via 16-bit registers.
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In both real and protected modes the system uses 16-bit "segment registers" to derive the actual memory address.
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The way in which the segment registers are used differs between the two modes.
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This is done by using the segment registers only for storing an index into a descriptor table that is stored in memory.
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The segment selector must be located in one of the segment registers.
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The use of segment registers allows multiple processes to share the same hash table.
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There were 8 addressing modes allowing access to data mapped by the segment registers in various ways.
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The concept of segment registers was not new to many mainframes which used segment registers to swap quickly to different tasks.
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First, the top four bits of the address are used to select one of 16 segment registers.
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Under both reigns all four segment registers contain one and the same value.
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Instead, the 16-bit segment registers now contain an index into a table of segment descriptors containing 24-bit base addresses to which the offset is added.
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These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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