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# Which register can be used to perform multiplication and division?

## Which register can be used to perform multiplication and division?

All of the multiplication and division operations operations use a special purpose register, the Y register (%y). You can use the mov operation to examine and set the contents of the Y register.

## Does the 8086 processor has multiplication and division instructions?

17. CONT.. Syntax: DIV divisor IDIV divisor Byte Form: The divisor is eight bit register or memory byte The 16 – bit dividend is assumed to be in AX.

How do you calculate binary multiplication?

The rules for binary multiplication are as follows.

1. 0 × 0 = 0.
2. 0 × 1 = 0.
3. 1 × 0 = 0.
4. 1 × 1 = 1.

### How can multiplication and division be achieved by shift operations?

Multiplication can be done by shifting to the left. Higher powers of two can be done by shifting several times. An extra flip-flop can be added to the ends of the chain. In the case of division by 2, this flip-flop will contain the remainder.

### What is the difference between the Imul and MUL instructions?

Explanation: The MUL and IMUL are multiplication instructions. Here, MUL instructions used for multiplying unsigned numbers. On the other hand, IMUL multiplies signed numbers.

What does DX ax mean?

Signed binary division of accumulator by source. If source is a byte value, AX is divided by “src” and the quotient is stored in AL and the remainder in AH. If source is a word value, DX:AX is divided by “src”, and the quotient is stored in AL and the remainder in DX.

#### What does CMP do in assembly?

The CMP instruction compares two operands. It is generally used in conditional execution. This instruction basically subtracts one operand from the other for comparing whether the operands are equal or not.

#### Which instruction mnemonics are used for multiplication and division of 8086?

8086 AAD Instruction The AAD is a mnemonic for “ASCII Adjust for Division”. This instruction is used before division of two unpacked BCD numbers so that after division, the quotient and remainder produced would be in unpacked BCD form. The AAD instruction executes and multiply AH by 10.

What is the difference between the Imul and MUL instructions with an example?

## What are arithmetic instructions in x86?

The arithmetic instructions define the set of operations performed by the processor Arithmetic Logic Unit (ALU). This article will discuss only the four key operations of arithmetic instructions. Integers used during arithmetic operations in x86 may be represented in two modes: unsigned and signed.

## How do you multiply 8-bit and 16-bit in Linux?

The mul instruction multiplies an 8-bit, 16-bit or 32-bit operand by either AL, AX or EAX. It multiplies by AL if the operand is 8-bit, by AX if the operand is 16-bit and by EAX if the operand is 32-bit. The operand in this instruction is unsigned. Figure 9: Signed multiplication in x86

What are the classifications of arithmetic instructions?

It goes on to describe in brief, four key classifications of arithmetic instructions: addition, subtraction, multiplication and division. This article is designed for students and professionals who want to gain detailed understanding of arithmetic instructions, their classifications and how they’re used.

### How do you multiply in MUL instruction?

The mul instruction multiplies an 8-bit, 16-bit or 32-bit operand by either AL, AX or EAX. It multiplies by AL if the operand is 8-bit, by AX if the operand is 16-bit and by EAX if the operand is 32-bit. The operand in this instruction is unsigned. MUL BX; Multiply the values in AX and BX. Result is saved in AX