Legacy apps in Windows/OS X was Re: Old MS-DOS & Win Software

woodelf bfranchuk at jetnet.ab.ca
Fri Dec 9 11:30:17 CST 2005


Allison wrote:

>The other differences were internal effective address calculation was handled
>differntly from 8088 which shaved a few cycles of the execution.  For the 
>same clock V series were between 5-10% faster.  Also the V20/V30 had 8080 
>emulation.
>
>  
>
I had forgotton about the V20's. Still a good way to get a few more % of 
speed.
I don't think anybody used the 8080 emulation unless you had CP/M software
you needed to run. MSDOS was the only big OS being pushed as I think
Pascal and CP/M86 had been discontinued by then.

>Allison
>
>.
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>  
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