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Questions and Answers
Which registers are used to hold the high 16-bit result in a 16 X 16 multiplication?
Which registers are used to hold the high 16-bit result in a 16 X 16 multiplication?
- DL and DH (correct)
- SP and BP
- SI and DI
- DX and BX
What is the purpose of the Stack Pointer (SP) in the stack segment?
What is the purpose of the Stack Pointer (SP) in the stack segment?
- Automatically updates due to push instructions
- Holds the high 16-bit result in multiplication
- Used as an offset for accessing stack data (correct)
- Used in indexed addressing
When are the Stack Pointer (SP) and Base Pointer (BP) contents automatically updated?
When are the Stack Pointer (SP) and Base Pointer (BP) contents automatically updated?
- During 16 X 16 multiplication
- During execution of POP or PUSH instructions (correct)
- During source and destination distinction
- During indexed addressing
What is the role of the Base Pointer (BP) in the current SS?
What is the role of the Base Pointer (BP) in the current SS?
Which pair of registers are used together in indexed addressing for data string processing?
Which pair of registers are used together in indexed addressing for data string processing?
In a 32 ÷ 16 division, which registers hold the high 16-bit dividend (data) before division?
In a 32 ÷ 16 division, which registers hold the high 16-bit dividend (data) before division?
What is the main function of the Execution Unit in a microprocessor?
What is the main function of the Execution Unit in a microprocessor?
Which register is used by I/O instructions for sending or receiving 16/8 bit data to/from an output/input device in the 8086 microprocessor?
Which register is used by I/O instructions for sending or receiving 16/8 bit data to/from an output/input device in the 8086 microprocessor?
What is the default segment register used with the Base Register (BX) in the 8086 microprocessor?
What is the default segment register used with the Base Register (BX) in the 8086 microprocessor?
Which register is used as a counter in instructions like SHIFT, ROTATE, and LOOP in the 8086 microprocessor?
Which register is used as a counter in instructions like SHIFT, ROTATE, and LOOP in the 8086 microprocessor?
In the 8086 microprocessor, which register consists of two 8-bit registers that can be combined to form a 16-bit register?
In the 8086 microprocessor, which register consists of two 8-bit registers that can be combined to form a 16-bit register?
Apart from general-purpose registers, which type of registers are present in the Execution Unit of the 8086 microprocessor?
Apart from general-purpose registers, which type of registers are present in the Execution Unit of the 8086 microprocessor?
What is the primary purpose of the AX register?
What is the primary purpose of the AX register?
Which register is used to hold the base value for accessing data from the stack memory using the SS register?
Which register is used to hold the base value for accessing data from the stack memory using the SS register?
What is the primary function of the SI and DI registers?
What is the primary function of the SI and DI registers?
Which register is responsible for holding the status of the results after an execution is performed?
Which register is responsible for holding the status of the results after an execution is performed?
How many conditional flags are present in the 8086 microprocessor's Flag Register?
How many conditional flags are present in the 8086 microprocessor's Flag Register?
Which register is used to hold data for multiplication and division operations in the 8086 microprocessor?
Which register is used to hold data for multiplication and division operations in the 8086 microprocessor?
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