The computer of Sec. 7-3 has the following binary microprogram: a. Translate it to a symbolic microprogram

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The computer of Sec. 7-3 has the following binary microprogram:

Address 60 61 62 63 Binary Microprogram 0 0 0 10 0000 0 1 0 1 00000 000 01 1 0 1 0 1 0 1 1 1 0 0 0 0 1 1 1 1

a. Translate it to a symbolic microprogram as in Table 7-2. (FETCH is in address 64 and INDRCT in address 67.) 

b. List all the things that will be wrong when this microprogram is executed in the computer.

Table 7-2

Label ADD: BRANCH: OVER: STORE: EXCHANGE: FETCH: TABLE 7-2 Symbolic Microprogram (Partial) Microoperations CD

7-3 Microprogram Example Once the configuration of a computer and its microprogrammed control unit is

111 10 10 SBR MUX AR PC 0 CAR Control memory 128 x 20 Control unit Address 15 15 Memory 2048 16 MUX DR

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Computer System Architecture

ISBN: 9780131755635

3rd Edition

Authors: M. Morris Mano

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