I'm currently trying to survive a computer organization class, and have run into a confusing problem. Please note I'm not asking people to do my homework for me, but I could use some assistance.
The following statement is the basis of my trouble:
IF a = 1 THEN copy X to W; otherwise copy Z to Y
My RTL statements then look like this:
a:W
Use a gate, in this case, an and circuit. Inputs: A, X; output:W; Inputs: A', Z; output:Y.
a 1 eq {/w x store}{/w y store} ifelse , obviously.
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Either lok for "data selector", or learn some basic Boolean algebra. Combinatorial logic is not that hard.
In hardware, it can be done with an inverter and a couple of ANDs.
Good Luck! Rich
If upper case letters are used to refer to vectors you might do better with a mux, in general.
Best regards, Spehro Pefhany
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Well, it's been a number of years since I've heard of Resistor-Transistor Logic being used anywhere. ;-)
Cheers! Rich
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