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Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami2 Figure 10.1 Truth table and schematic diagram for a binary half-adder.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami3 Figure 10.2 Truth table and schematic diagram for a binary full adder.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami4 Figure 10.3 Full adder implemented with two half-adders, by means of two 4-input multiplexers, and as two-level gate network.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami5 Figure 10.4 Ripple-carry binary adder with 32-bit inputs and output.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami6 Figure 10.5 The main part of an adder is the carry network. The rest is just a set of gates to produce the g and p signals and the sum bits.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami7 Figure 10.6 The carry propagation network of a ripple-carry adder.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami8 Figure 10.7 A 4-bit section of a ripple-carry network with skip paths.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami9 Figure 10.8 Driving analogy for carry propagation in adders with skip paths. Taking the freeway allows a driver who wants to travel a long distance to avoid excessive delays at many traffic lights.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami10 Figure 10.9 Schematic diagram of an initializable synchronous counter.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami11 Figure Carry propagation network and sum logic for an incrementer.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami12 Figure Brent-Kung lookahead carry network for an 8-digit adder, along with details of one of the carry operator blocks.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami13 Figure Brent-Kung lookahead carry network for an 8-digit adder, with only its top and bottom rows of carry operators shown.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami14 Figure Blocks needed in the design of carry-lookahead adders with four-way grouping of bits.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami15 Figure Carry-select addition principle.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami16 Figure Multiplexer-based logical shifting unit.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami17 Figure The two arithmetic shift instructions of MiniMIPS.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami18 Figure Multistage shifting in a barrel shifter.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami19 Figure A 4 × 8 block of a black-and-white image represented as a 32-bit word.
Copyright 2005 by Oxford University Press, Inc. Computer Architecture Parhami20 Figure A multifunction ALU with 8 control signals (2 for function class, 1 arithmetic, 3 shift, 2 logic) specifying the operation.