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What is difference between SAR and SHR?

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What is difference between SAR and SHR?

sar rounds toward negative infinity; the high-order bit remains unchanged. shr right shifts (unsigned divides) a byte, word, or long value for a count specified by an immediate value and stores the quotient in that byte, word, or long respectively.

What is SAR in assembly?

SAR (shift arithmetic right) performs a right arithmetic shift on the destination operand. CF. An arithmetic shift preserves the number’s sign.

What is SHL x86?

The shl or sal instruction is used to shift the bits of the operand destination to the left, by the number of bits specified in the count operand. Bits shifted beyond the destination are first shifted into the CF flag.

What is the difference between SAL and SHL?

According to this, they are the same: The shift arithmetic left (SAL) and shift logical left (SHL) instructions perform the same operation; they shift the bits in the destination operand to the left (toward more significant bit locations).

What is SHR x86?

Description. The shr or sar instruction is used to shift the bits of the operand destination to the right, by the number of bits specified in the count operand. Bits shifted beyond the destination are first shifted into the CF flag.

What is SHL and SHR in assembly?

SAL (or its synonym, SHL) shifts the bits of the operand upward. The high-order bit is shifted into the carry flag, and the low-order bit is set to 0. SAR and SHR shift the bits of the operand downward. The low-order bit is shifted into the carry flag. The effect is to divide the operand by 2.

What is JS Assembly?

The js (or jne) instruction is a conditional jump that follows a test. It jumps to the specified location if the previous instruction sets the Sign Flag (SF).

What does SALQ mean?

salq is a shift-left operation. Basically it’s taking a binary number (y) and shifting all it’s bits to the left, thereby making it’s least significant bit into it’s most significant bit.

What is the use of SHL?

SHL is a company that publishes psychometric tests designed to test the diagrammatic, numerical, and verbal reasoning of prospective employees. SHL test accuracy, speed, and test score compare candidates’ suitability for the role.

What is XOR in assembly language?

The XOR instruction performs a bit wise Exclusive OR operation between corresponding bits in the two operands and places the result in the first operand.