List the control logic state table entries for the multiple- cycle computer (see Tables 8-12, 8-13 and

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List the control logic state table entries for the multiple- cycle computer (see Tables 8-12, 8-13 and 8-15) that implement the following register transfer statements. Assume that in all cases the present state is EX0. If an opcode is needed, use a symbolic name based on the problem part— e.g., for part (a), opcode_a.

(a) R3-R7 - R2, EX1. Assume DR = 3, SA = 7, SB = 2. (b) R8sr R8, INF. Assume DR = 5, SB = 5. (c) if (Z = 0)

Table 8-12

Control-Word Information for Datapath DX AX BX Code MB Code FS R[DR] R[SA] R[SB] OXXX Register 0 F = A R8 R8

Table 8-12

Control Information for Sequence Control NS Next State Gives next state of control state register Action PS

Table 8-15

State Table for Illustration of Instructions Having Three or More Cycles Outputs State Inputs Next State I

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Logic And Computer Design Fundamentals

ISBN: 9780133760637

5th Edition

Authors: M. Morris Mano, Charles Kime, Tom Martin

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