Computer System Architecture - Basic Computer Organization and Design
21. The addressing mode used in the instruction PUSH B is
- Option : B
- Explanation : Push is used to write into stack
1. This is not direct we are not mentioning address here.
2. It's not register indirect we are not mentioning register which contain address.
3. It's not immediate we are not storing immediate value.
So answer is (B) i.e. register addressing
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- Option : B
- Explanation :
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- Option : C
- Explanation :
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24. When a program is being executed in an 8085 microprocessor, its Program Counter contains
- Option : D
- Explanation :
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25. When the HLT instruction of a 8085 micro-processor is executed, the microprocessor
- Option : C
- Explanation :
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