Fill in the blanks below with the most appropriate term or concept discussed in this chapter: This

Fill in the blanks below with the most appropriate term or concept discussed in this chapter:

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This type of architecture typically has instructions that explicitly specify only one operand. A feature of some computer architectures in which operate instructions do not have memory operands; their operands are found in CPU registers. Machines belonging to this architectural class try to bridge the semantic gap by having machine language instructions that approximate the functionality of high-level language statements. This part of a CPU includes the registers that store operands as well as the circuitry that performs computations. This type of addition circuit develops all carries in logic directly from the inputs rather than waiting for them to propagate from less significant bit positions. A structure composed of multiple levels of carry save adders, which can be used to efficiently implement multiplication. This type of notation stores signed numbers as though they were unsigned; it is used to represent exponents in some floating-point formats. In IEEE 754 floating-point numbers, a normalized mantissa with the leading 1 omitted is called this. This is the result when the operation 1.0/0.0 is per- formed on a system with IEEE 754 floating-point arithmetic.