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For the below microprogrammed architecture, what is the ALU sequence of actions/micro instruction code: ALU(F2,F1,FO) required to implement the instruction SUB DO, D1,#1? Assume that CL1 =0 for Latch 1 and CL2 =1 for Latch 2 Note: The table below defines the effect of the ALU's function code. Bus A Bus B Guan Read- Write- Data out Main store TEn Guow Data in Euor The memory performs a read when Read = 1 and a write when Write - 1 Address Cun MAR F2 F1 FO Operatlon Cuen Guen MBR TEven G O Copy P to bus A 0|0 1 Copy a to bus A A=P IR A=Q Grc 1 Copy P+1 to bus A A =P +1 PC Goo 1 1 Copy Q +1 to bus A A =Q+1 DO 1 Copy P-1 to bus A A=P-1 Co Go D1 1 Copy a- 1 to bus A A =Q 1 1 Copy bus P+Q to bus A A =P+Q ALU P 1 Copy bus P Q to bus A A =PQ Latch 1 1 (P,O) Latch 2 Function select F2F1F0=111 F2F1F0=100 F2F1F0=101 O F2F1F0=010 1.

For the below microprogrammed architecture, what is the ALU sequence of actions/micro instruction code: ALU(F2,F1,FO) required to implement the instruction SUB DO, D1,#1? Assume that CL1 =0 for Latch 1 and CL2 =1 for Latch 2 Note: The table below defines the effect of the ALU's function code. Bus A Bus B Guan Read- Write- Data out Main store TEn Guow Data in Euor The memory performs a read when Read = 1 and a write when Write - 1 Address Cun MAR F2 F1 FO Operatlon Cuen Guen MBR TEven G O Copy P to bus A 0|0 1 Copy a to bus A A=P IR A=Q Grc 1 Copy P+1 to bus A A =P +1 PC Goo 1 1 Copy Q +1 to bus A A =Q+1 DO 1 Copy P-1 to bus A A=P-1 Co Go D1 1 Copy a- 1 to bus A A =Q 1 1 Copy bus P+Q to bus A A =P+Q ALU P 1 Copy bus P Q to bus A A =PQ Latch 1 1 (P,O) Latch 2 Function select F2F1F0=111 F2F1F0=100 F2F1F0=101 O F2F1F0=010 1.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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For the below microprogrammed architecture, what is the ALU sequence of actions/micro instruction code: ALU(F2,F1,F0) required to implement the instruction SUB D0, D1, #1? Assume that CL1 = 0 for Latch 1 and CL2 = 1 for Latch 2. Note: The table below defines the effect of the ALU’s function code. **Diagram Explanation:** The diagram illustrates a microprogrammed architecture featuring various components such as a Main Store, Memory Address Register (MAR), Memory Buffer Register (MBR), Instruction Register (IR), Program Counter (PC), and Data Registers (D0 and D1). These components interface with the ALU, which has function codes F2, F1, and F0 controlling different operations. **ALU Function Table:** | F2 | F1 | F0 | Operation | |----|----|----|-----------------------------| | 0 | 0 | 0 | Copy P to bus A; A = P | | 0 | 0 | 1 | Copy Q to bus A; A = Q | | 0 | 1 | 0 | Copy P + 1 to bus A; A = P + 1 | | 0 | 1 | 1 | Copy Q + 1 to bus A; A = Q + 1 | | 1 | 0 | 0 | Copy P - 1 to bus A; A = P - 1 | | 1 | 0 | 1 | Copy Q - 1 to bus A; A = Q - 1 | | 1 | 1 | 0 | Copy bus P + Q to bus A; A = P + Q | | 1 | 1 | 1 | Copy bus P - Q to bus A; A = P - Q | **Options:** - ○ F2F1F0 = 111 - ○ F2F1F0 = 100 - ○ F2F1F0 = 101 - ○ F2F1F0 = 010
Transcribed Image Text:For the below microprogrammed architecture, what is the ALU sequence of actions/micro instruction code: ALU(F2,F1,F0) required to implement the instruction SUB D0, D1, #1? Assume that CL1 = 0 for Latch 1 and CL2 = 1 for Latch 2. Note: The table below defines the effect of the ALU’s function code. **Diagram Explanation:** The diagram illustrates a microprogrammed architecture featuring various components such as a Main Store, Memory Address Register (MAR), Memory Buffer Register (MBR), Instruction Register (IR), Program Counter (PC), and Data Registers (D0 and D1). These components interface with the ALU, which has function codes F2, F1, and F0 controlling different operations. **ALU Function Table:** | F2 | F1 | F0 | Operation | |----|----|----|-----------------------------| | 0 | 0 | 0 | Copy P to bus A; A = P | | 0 | 0 | 1 | Copy Q to bus A; A = Q | | 0 | 1 | 0 | Copy P + 1 to bus A; A = P + 1 | | 0 | 1 | 1 | Copy Q + 1 to bus A; A = Q + 1 | | 1 | 0 | 0 | Copy P - 1 to bus A; A = P - 1 | | 1 | 0 | 1 | Copy Q - 1 to bus A; A = Q - 1 | | 1 | 1 | 0 | Copy bus P + Q to bus A; A = P + Q | | 1 | 1 | 1 | Copy bus P - Q to bus A; A = P - Q | **Options:** - ○ F2F1F0 = 111 - ○ F2F1F0 = 100 - ○ F2F1F0 = 101 - ○ F2F1F0 = 010
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Step 1

Solution:--

 

1)The given question is an type of the multiple choice question so some of the options

    are given in the question.

 

2)From that given options one of the option is correct from the given 4 set of options in

    the question.

 

3)The question given is about the micro-programmed architecture in which the ALU sequence

    of micro instructions code is given.

 

4)So the ALU(F2 , F1 , F0) is required to implement the function SUB D0 , D1 , #1 as per

    mentioned in the question.

 

5)Note:-- I have provided the correct option and explanation in the following below step

    respectively.

 

 

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