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Exam (elaborations)

Assembly Language PASSED Exam Questions and CORRECT Answers

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  • Module
  • Assembly Language
  • Institution
  • Assembly Language

Assembly Language PASSED Exam Questions and CORRECT Answers What special purpose does the ECX register serve? - CORRECT ANSWER- Loop counter VRAM stands for virtual random access memory. - CORRECT ANSWER- False MOV is an example of an instruction mnemonic. - CORRECT ANSWER- True What is the s...

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  • August 23, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Assembly Language
  • Assembly Language
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Assembly Language PASSED Exam
Questions and CORRECT Answers

What special purpose does the ECX register serve? - CORRECT ANSWER- Loop counter


VRAM stands for virtual random access memory. - CORRECT ANSWER- False


MOV is an example of an instruction mnemonic. - CORRECT ANSWER- True


What is the sum of 00001111 and 00000010? - CORRECT ANSWER- 00010001


When a 32-bit value is pushed on the stack, what happens to ESP? - CORRECT ANSWER-
ESP is decremented by 4


Which instruction performs the following operation (CF = carry flag)? - CORRECT
ANSWER- RCL


In 32-bit mode, aside from the stack pointer (ESP), what other register points to variables on
the stack? - CORRECT ANSWER- EBP


LIFO stands for "last in first out". The last value pushing into the stack is the first value
popped from the stack. - CORRECT ANSWER- True


A nested procedure call occurs when a called procedure calls another procedure before the
first procedure returns. - CORRECT ANSWER- True


Why overflow cannot occur when the MUL and one-operand IMUL instructions execute. -
CORRECT ANSWER- The product in register, twice the size.


Which register (in 32-bit mode) manages the stack? - CORRECT ANSWER- ESP

, Which instruction shifts each bit to the right..copies lowest bit into the Carry flag. -
CORRECT ANSWER- RCR


USES tells the assembler to do two things. - CORRECT ANSWER- False


When EBX is the operand in a DIV instruction. Which register holds the quotient? -
CORRECT ANSWER- EAX


Files produced by the assembler? - CORRECT ANSWER- Object and Listing files


What is the most significant bit? - CORRECT ANSWER- The highest numbered bit


When BX is the operand in a DIV instruction, which register holds the quotient? -
CORRECT ANSWER- AX


Which instructon shifts each bit in an operand to the left and copies the highest bit into the
Carry and lowest bit position? - CORRECT ANSWER- ROL


The PUSH instruction cannot have an immediate operand. - CORRECT ANSWER- False


What would happen if the RET instruction was omitted from a procedure? - CORRECT
ANSWER- Execution would continue..into another procedure.


What are the required input parameters for the DumpMem procedure? - CORRECT
ANSWER- ESI contains the data's starting address. ECX and EBX.


What happens to the Carry flag when the SHR AX, 1 instruction executes. - CORRECT
ANSWER- receives the lowest bit of AX BEFORE the shift.


ADC does: - CORRECT ANSWER- adds both a source operand and the carry flag to
destination


Name the four basic parts - CORRECT ANSWER- label, mnemonic, operand and comment

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