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If the switch S- of the input PORTO (see Figure 6.14) connected to the data line D. is at logic I and other switches are at logic 0, specify the contents of the accu mulator when the instruction IN PORTO is executed. 14. MVI A.9FH IN PORTO MOV BA OUT PORTI HLT?
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If the switch S- of the input PORTO (see Figure 6.14) connected to the...
Contents of the accumulator when the instruction IN PORTO is executed:

When the instruction "IN PORTO" is executed, the contents of the accumulator depend on the value received from the input port connected to the data line D, assuming the switch S- is at logic 1 and all other switches are at logic 0.

1. Understanding the instruction:

- The instruction "IN PORTO" is used to input data from a specified port into the accumulator.
- The port specified here is PORTO, which is connected to the data line D.
- The data received from the port will be stored in the accumulator.

2. Switch configuration:

- In the given scenario, the switch S- connected to the input PORTO is at logic 1, while all other switches are at logic 0.
- This means that a logic 1 signal is being applied to the data line D.

3. Effect on the accumulator:

- When a logic 1 signal is applied to the data line D, the input port PORTO will transfer this value to the accumulator.
- The value received from the input port is 1, as the switch S- is at logic 1.
- Therefore, the accumulator will hold the value 1 after the execution of the "IN PORTO" instruction.

4. Execution of subsequent instructions:

- After the "IN PORTO" instruction, the next instruction is "MOV B, A" which moves the contents of the accumulator to register B.
- So, the value 1 stored in the accumulator will be transferred to register B.
- The subsequent instruction "OUT PORTI" is not relevant to the contents of the accumulator and will not affect its value.
- Finally, the "HLT" (Halt) instruction will stop the execution of the program.

Conclusion:

When the instruction "IN PORTO" is executed with the given switch configuration, the contents of the accumulator will be 1.
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If the switch S- of the input PORTO (see Figure 6.14) connected to the data line D. is at logic I and other switches are at logic 0, specify the contents of the accu mulator when the instruction IN PORTO is executed. 14. MVI A.9FH IN PORTO MOV BA OUT PORTI HLT?
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If the switch S- of the input PORTO (see Figure 6.14) connected to the data line D. is at logic I and other switches are at logic 0, specify the contents of the accu mulator when the instruction IN PORTO is executed. 14. MVI A.9FH IN PORTO MOV BA OUT PORTI HLT? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about If the switch S- of the input PORTO (see Figure 6.14) connected to the data line D. is at logic I and other switches are at logic 0, specify the contents of the accu mulator when the instruction IN PORTO is executed. 14. MVI A.9FH IN PORTO MOV BA OUT PORTI HLT? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If the switch S- of the input PORTO (see Figure 6.14) connected to the data line D. is at logic I and other switches are at logic 0, specify the contents of the accu mulator when the instruction IN PORTO is executed. 14. MVI A.9FH IN PORTO MOV BA OUT PORTI HLT?.
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