CPU floating-point operation refers to the operation that the main CPU is mainly engaged in, which is as close as possible within the allowable range. (Many times, multiplication is faster than addition, didn't you think? ), and FPU is mainly engaged in floating-point operations, formerly called coprocessor. CPU before 486 does not contain (8086 ~ 8087, 80286 ~ 80287, 80386 ~ 80387 = 80386DX, 80486SX ~ 80487 = 80486DX, 586 = 586. It can be understood as an operation mode in which the decimal point can be moved. Current speed AMD>& gt integer refers to positive integer, negative integer and zero, such as -6, 0, 32, etc. Floating-point numbers refer to rational numbers with limited decimal places, such as-10.8, 0.00, 25.0438+0, etc. Integer can be an integer or a floating point number, for example, 255 is an integer and 255.0 is a floating point number. Cpu integer operation refers to integer operation, and the result is an integer, and the decimal part of the calculation result will be ignored. For example, when using integer operation, 100÷3=33. Floating-point operation, the result is floating-point number, and the decimal part of the calculation result will be retained. For example, when using floating-point operations, 100.0 ÷ 3.0 = 33.3333. For example, when a bullet hits a wall, it drops a piece of soil, which has strong floating-point operation, and the falling dust may also be displayed.

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