A physical processor is organized as different execution units at the hardware level, for example, fixed point and floating point operation units.
在硬件级别中，物理处理器是作为不同的执行单元进行组织的，例如定点和浮点操作单元。
2
Extracodes may be used to provide floating-point operations, for example, on a machine which does not have floating-pointhardware.
例如，如果一台机器没有浮点硬件，则可以用附加程序来提供浮点操作。
3
Compared with the floating-point computing method, the shift-add operation is simpler, and can be implemented easily by VLSI, which enables the real-time image processing to be realized by hardware.