The content of the registers are \( R_1 = 25H \), \( R_2 = 30H \), and \( R_3 = 40H \). The following machine instructions are executed.
After execution, the content of registers \( R_1 \), \( R_2 \), \( R_3 \) are
The content of the registers are \( R_1 = 25H \), \( R_2 = 30H \), and \( R_3 = 40H \). The following machine instructions are executed.
After execution, the content of registers \( R_1 \), \( R_2 \), \( R_3 \) are
Show Hint
- \( R_1 = 40H \), \( R_2 = 30H \), \( R_3 = 25H \)
- \( R_1 = 25H \), \( R_2 = 30H \), \( R_3 = 40H \)
- \( R_1 = 30H \), \( R_2 = 40H \), \( R_3 = 25H \)
- \( R_1 = 40H \), \( R_2 = 25H \), \( R_3 = 30H \)
The Correct Option is A
Solution and Explanation
- After executing \( \texttt{PUSH\{R2\}} \), the value of \( R_2 \) is pushed onto the stack.
- After executing \( \texttt{PUSH\{R3\}} \), the value of \( R_3 \) is pushed onto the stack.
At this point, the stack has the values \( 40H, 30H, 25H \) in that order.
- After executing \( \texttt{POP\{R1\}} \), the top value (40H) is popped into \( R_1 \).
- After executing \( \texttt{POP\{R2\}} \), the next value (30H) is popped into \( R_2 \).
- After executing \( \texttt{POP\{R3\}} \), the next value (25H) is popped into \( R_3 \).
Thus, after the execution, the contents of the registers are: \[ R_1 = 40H, \, R_2 = 30H, \, R_3 = 25H. \] Final Answer: \( R_1 = 40H \), \( R_2 = 30H \), \( R_3 = 25H \)
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