In a message dated 7/14/2005 5:33:58 A.M. Central Daylight Time,  
[EMAIL PROTECTED] writes:

The  model 30 had  a simple set of numbers with 
>no variables.   Load Address was something like  19 microseconds no matter  
>what.
> 
>  
>
Not quite, IIRC if the index  register is not zero then add a few  
microseconds for any instruction  with index reg.





You remembered more correctly than I did.  I forgot about that one  variable. 
 Since I was just beginning to write code, I never did anything  complex like 
use index registers on RX instructions.  :-)
 
Bill Fairchild

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