FPU
FPU:
(Float Point Unit,浮点运算单元)FPU是专用于浮点运算的处理器,以前的FPU是一种单独芯片,在486之后,英特尔把FPU与集成在CPU之内。
A floating point unit (FPU) is a part of a computer system specially designed to carry out operations on floating point numbers。 Typical operations are addition, subtraction, multiplication, division, and square root。 Some systems (particularly older, microcode-based architectures) can also perform various transcendental functions such as exponential or trigonometric calculations, though in most modern processors these are done with software library routines。查看更多>>