Tips

Which processor required more number of registers?

by Author

Which processor required more number of registers?

17. Which processor requires more number of registers? Explanation: RISC Requires more number of registers.

How registers in 8086 can be segmented?

The 8086 has four special segment registers: cs, ds, es, and ss. These stand for Code Seg- ment, Data Segment, Extra Segment, and Stack Segment, respectively. These registers are all 16 bits wide. Segments of memory on the 8086 can be no larger than 65,536 bytes long.

Why do we need extra segment in 8086?

The es (Extra Segment) register is an extra segment register. 8086 programs often use this segment register to gain access to segments when it is difficult or impossible to modify the other segment registers. The ss (Stack Segment) register points at the segment containing the 8086 stack.

READ:   Can an average student study data science?

What is the size of flag register in 8086?

16-bit
8086 has 16-bit flag register, and there are 9 valid flag bits.

How many registers are in a CPU?

The CPU has 8 general-purpose registers, each capable of storing 32-digit binary numbers.In addition to 32-bit data, they can also store 16- or 8-bit data.

What are extra segment registers?

Extra Segment Register (ES): also refers to a segment in the memory which is another data segment in the memory. Stack Segment Register (SS): is used for addressing stack segment of the memory. The stack segment is that segment of memory which is used to store stack data.

How many control flags are there in 8086 register?

3 control flags
There are 3 control flags in 8086 microprocessor and these are: Directional Flag (D) – This flag is specifically used in string instructions. If directional flag is set (1), then access the string data from higher memory location towards lower memory location.

READ:   Is there any way to access the class private members without its object?

Which of the following registers are available in 8086 microprocessor?

The 8086 has four groups of the user accessible internal registers. They are the instruction pointer, four data registers, four pointer and index register, four segment registers.

How many types of registers are there in 8086?

In the 8086 Microprocessor, the registers are categorized into mainly four types: General Purpose Registers. Segment Registers. Pointers and Index Registers.

What are the general purpose registers in 8086 microprocessor?

The general purpose registers are used to store temporary data in the time of different operations in microprocessor. 8086 has eight general purpose registers. This is the accumulator. It is 16-bit registers, but it is divided into two 8-bit registers.

How many status flags are there in 8086 microprocessor?

(a) Status Flags – There are 6 flag registers in 8086 microprocessor which become set (1) or reset (0) depending upon condition after either 8-bit or 16-bit operation. These flags are conditional/status flags. 5 of these flags are same as in case of 8085 microprocessor and their working is also same as in 8085 microprocessor.

READ:   How do you fix a loose headphone jack on a laptop?

What is the use of accumulator in 8086 microprocessor?

It is generally used for arithmetical and logical instructions but in 8086 microprocessor it is not mandatory to have accumulator as the destination operand. BX – This is the base register.

What is flag register in microprocessor?

The Flag register is a Special Purpose Register. Depending upon the value of result after any arithmetic and logical operation the flag bits become set (1) or reset (0). (a) Status Flags – There are 6 flag registers in 8086 microprocessor which become set (1) or reset (0) depending upon condition after either 8-bit or 16-bit operation.