6. IMUL Instruction

• The IMUL (signed multiply) instruction performs signed integer multiplication.

• It has the same syntax and uses the same operands as the MUL instruction.

• What is different is that it preserves the sign of the product.

• IMUL sets the Carry and Overflow flags if the high-order product is not just a sign extension of the low-order product.

• The Overflow flag OF is normally used for interpreting signed arithmetic.