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Topic: Flags register


  
 Central processing unit - Wikipedia, the free encyclopedia
Such operands may be given as a constant value (called an immediate value), or as a place to locate a value: a register or a memory address, as determined by some addressing mode.
If the addition operation produces a result too large for the CPU to handle, an arithmetic overflow flag in a flags register may also be set (see the discussion of integer range below).
For example, one type of "compare" instruction considers two values and sets a number in the flags register according to which one is greater.
en.wikipedia.org /wiki/CPU   (7009 words)

  
 Central processing unit - Facts, Information, and Encyclopedia Reference article
If the addition operation produces a result too large for the CPU to handle, an arithmetic overflow flag in a flags register may also be set (see the discussion of integer precision below).
These types of memory are much slower compared to registers, both due to physical limitations and because they require more steps to access than the internal registers.
However, compared to the registers, this external memory is usually more inexpensive and can store much more data, and is thus still necessary for computer operation.
www.startsurfing.com /encyclopedia/c/e/n/Central_Processing_Unit_afae.html   (3447 words)

  
 QB Cult Magazine - Vol. 3 Iss. 3
The CS register holds the current Code Segment (your program code), DS holds the Data Segment (your memory variables), SS holds the Stack Segment, and ES is an Extra Segment that is often used to access arrays located in far memory.
There is also another register called the Flags register, though it is not intended for you to use directly.
After performing calculations and comparisons, certain bits in the Flags register are set or cleared by the CPU automatically, depending on the results.
qbcm.hybd.net /issues/3-3   (9763 words)

  
 Intel 80x86 Instruction Set   (Site not responding. Last check: 2007-10-31)
CLTS - Clear Task Switched Flag (286+ privileged).
OR - Inclusive Logical OR - Output Data to Port.
PUSHA/PUSHAD - Push All Registers onto Stack (80188+)
library.n0i.net /hardware/intel80x86   (444 words)

  
 WebShed.Com Center of Web -
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Directories and databases including Commerce Business Daily, Federal Register and Patents.
Full text search of selected author biographies and literary criticism.
www.centerofweb.com /_add/reference.htm   (357 words)

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