Microprocessor
While STC instruction executes,

 only carry and zero flags will be affected.
 all flags will be affected.
 only carry flag will be affected.
 no flags will be affected.

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Microprocessor
How can we make any bit of a register “0”?

 AND that bit with “1” and remaining bits with “0”.
 AND that bit with “0” and remaining bits with “1”.
 OR that bit with “0” and remaining bits with “1”.
 OR that bit with “1” and remaining bits with “0”.

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