UMBC CMSC 313, Computer Organization & Assembly Language, Fall 2012

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Thursday, November 15, 2012

Assigned:  HW3      Due:  Proj8

Circuits for Addition

Assigned Reading in Null & Lobur:  3.4-3.5

Assigned Reading in Duntemann:   

Actual Slides (in PDF): Slides22.pdf

Topics Covered:

• half adder, full adder, ripple-carry adder, carry lookahead adder
• logic components: MUX, DEMUX, Decoders
• Logisim demo

Circuts Shown: Download these to your local disk and open with Logisim.

• Half Adder.circ
• Full Adder.circ
• Component Decoder.circ
• 4-1 DEMUX.circ
• 4-1 MUX.circ
• Combined Adder-Subtractor.circ
• 2-bit ALU.circ