CPU : When performing arithmetic operations or logical operations , the source operands and results are often temporarily stored in the accumulator (AC) .
During the running of the program, the CPU needs to fetch the instructions from the memory , analyze and execute them. The CPU distinguishes the instructions and data stored in the binary code in the memory according to ( the addressing mode of instructions and data) .
The components that belong to the arithmetic logic unit in the CPU are ( adders ).
In the CPU , the register that is often used to provide data for the ALU to perform arithmetic and logical operations and temporarily store the result of the operation is the ( accumulation register ) .
The number of bits in the instruction register depends on ( instruction word length )
In the CPU , the ( controller ) must not only ensure the correct execution of instructions , but also be able to handle abnormal events .
If an unconditional branch assembly instruction uses direct addressing , the function of the instruction is to send the address code in the instruction ( PC (program counter) ).
The register used in the CPU to keep track of instruction addresses is ( Program Counter (PC) ).
In the following description of the CPU , the error is (the program counter PC can temporarily store the arithmetic/logical operation result in addition to storing the instruction address ).
During the execution of the program, the address mapping between the Cache and the main memory is done ( automatically by hardware ). Note: (main memory means memory)
During program execution, the address mapping of Cache and main memory is done by (automatically by hardware )
The cache memory ( Cache ) located between the CPU and the main memory is used to store a copy of part of the main memory data , and the conversion work between the main memory address and the Cache address is completed by ( hardware ).
During the execution of the program, the address mapping between the Cache and the main memory is done automatically by ( specialized hardware ).
The fastest access to it by the CPU in the computer is the ( general-purpose register ).
The following statement about Cache is correct ( the design idea of Cache is to improve the hit rate at a reasonable cost ).