TIP: Click on subject to list as thread! ANSI
echo: 80xxx
to: DARRYL GREGORASH
from: GLEN MCNABB
date: 1997-12-29 08:57:00
subject: pure Hex Programming

DG> Replying to a message of Glen McNabb to Darryl Gregorash:
DG> 
DG>  SM>>> Apparently, on the NEC chips [V20/30]
DG>   SM>>> supposedly the AAM and AAD instructions don't work
DG>  SM>>> correctly for any operand other than 0x0A.
DG> 
DG>  DG>> ...they ignore that byte.. decimal values only.
DG> 
DG>  GM> That's been my experience with it. The only use I ever had
DG>  GM> for using a data byte other than 0A was to unpack the
DG>  GM> values into nibbles for dual BCD displays.
DG> 
DG> Also good for testing to see if you had a V20/30 or an Intel.. if AAD 
DG> with any operand  gave you the result you expected for a decimal adjust, 
DG> then you had a NEC chip.
I thank progress for not having to do that anymore...
Glen...
--- ProBoard v2.16 [Reg]
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* Origin: NC/NEC SEWAnet, Bucolic Fair (1:3407/25)

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