The compiler-supplied floating-point library contains a set of software subroutines that emulate the instruction set of a floating-point coprocessor. 支持浮点运算的编译器中的程序库包含一组子程序来模拟浮点运算协处理器中的指令组。
Every general-purpose computer has its own unique instruction repertoire. 每台通用计算机都有其独有的指令系统。
Other differences lie in the instruction set, internal architecture, and control signals. 其他差别是在指令系统,内部结构和控制信号方面。