Re: Carry Select Adder
Posted by cadet1620 on Jan 11, 2013; 5:25pm
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Carry-Select-Adder-tp4025925p4026058.html
If you have not already found it, you might want to get Logisim. It's a visual logic simulator that will let you see how the various adders work much easier than the TECS Hardware Simulator. The images in my posts are from Logisim.
The various techniques can be mixed to achieve various tradeoffs between speed and circuit size. Here's one using both look-ahead and select.
--Mark
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Carry-Select-Adder-tp4025925p4026058.html
If you have not already found it, you might want to get Logisim. It's a visual logic simulator that will let you see how the various adders work much easier than the TECS Hardware Simulator. The images in my posts are from Logisim.
The various techniques can be mixed to achieve various tradeoffs between speed and circuit size. Here's one using both look-ahead and select.
--Mark
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