Difference between revisions of "Commercial Instruction Set"
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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]]. | 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]]. | ||
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==See also== | ==See also== | ||
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* [[PDP-11 Commercial Instruction Set]] | * [[PDP-11 Commercial Instruction Set]] | ||
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Latest revision as of 23:36, 12 October 2024
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.
