From the beginning of this section we enter the last one of this chapter, that is, its implementation we arithmetic logic unit. This part of it is some knowledge of digital circuits, so, if you have not learned a digital circuit, then, do not panic, I will start with the basics to make everyone play. So among computer operator undertook to perform various arithmetic and logic operations work, then the operator what constitutes it? Before we have said before, when in the first chapter. Operator is an arithmetic logic unit, an accumulator, status register, and general-purpose registers thereof. Therefore, the operator, the most important part is our arithmetic logic unit. So we are going to explain the arithmetic logic unit to achieve its principles.
Then I will talk to you these two aspects. First, it is ALU, which is our arithmetic logic unit.