sbb is a subtraction instruction with borrow, which uses the borrow value recorded on the CF bit.
Instruction format: sbb operation object 1, operation object 2
Function: Operation object 1 = Operation object 1-Operation object 2-CF
sbb is a subtraction instruction with borrow, which uses the borrow value recorded on the CF bit.
Instruction format: sbb operation object 1, operation object 2
Function: Operation object 1 = Operation object 1-Operation object 2-CF