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What is the basic difference between MUL and IMUL instruction in 8086 microprocessor?
Wiki User
∙ 11y ago
mul is used for unsigned multiplication whereas imul is used for signed multiplication. Algorithm for both are same, which is as follows:
when operand is a byte:
AX = AL * operand.when operand is a word:
(DX AX) = AX * operand.
But, the difference is that mul instruction multiplies only unsigned numbers whereas imul instruction does the same for signed numbers.
Wiki User
∙ 11y ago
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