Re: Instruction decoder 6502

From: Andre Fachat (
Date: 1999-02-14 21:04:28

Ruud Baltissen wrote:
> Total of 13 inputs. You could think of a 2764-EPROM but they have one 
> disadvantage: SLOOOOOOOOOW. 
> Another idea is to use Cache-RAMs, I have some of 15ns. They could be used 
> during the test phase but on the end we need a permanent solution. 
> The last thing I am thinking of is to calculate all the equations and build the 

Why not load the SRAMs from an EPROM on powerup - you could easily
change the code and still have the speed of the SRAMs.


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Andre Fachat, Institute of physics, Technische Universitšt Chemnitz, FRG
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