Question

if content of reg A=25 then after executing rlc what will be the content of accumulator​

Answer 1

Answer:

Assumption:

Each instruction will use the result of the previous instruction for registers. Following is the description of each instruction with register content and flag status:

Instruction-1:

SUB A instruction will subtract the content of the accumulator itself. It is used to clear the content of the accumulator. After this operation the content of the registers and flags will be like figure given below.