Difference between revisions of "Commercial Instruction Set"

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A '''Commercial Instruction Set''' (sometimes named an 'Extended Instruction Set') was an option in a number of early computers to support more efficient processing of business applications; it generally included [[binary-coded decimal]] support.
 
A '''Commercial Instruction Set''' (sometimes named an 'Extended Instruction Set') was an option in a number of early computers to support more efficient processing of business applications; it generally included [[binary-coded decimal]] support.
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In [[Digital Equipment Corporation|DEC]]'s [[VAX]] line of computers, the early models included hardware support for the VAX [[architecture]]'s Commercial Instruction Set, but this was dropped in later models; any such instructions found in the [[object code]] as a program ran were [[emulator|emulated]].
  
 
==See also==
 
==See also==
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[[Category: Computer Basics]]

Latest revision as of 02:03, 16 December 2018

A Commercial Instruction Set (sometimes named an 'Extended Instruction Set') was an option in a number of early computers to support more efficient processing of business applications; it generally included binary-coded decimal support.

In DEC's VAX line of computers, the early models included hardware support for the VAX architecture's Commercial Instruction Set, but this was dropped in later models; any such instructions found in the object code as a program ran were emulated.

See also