/* areatest.c - An example of using floating point regs */#include <stdio.h>int main(){   int radius = 10;   float area;   asm("fild %1\n\t"       "fimul %1\n\t"       "fldpi\n\t"       "fmul %%st(1), %%st(0)"       : "=t"(area)       :"m"(radius)       : "%st(1)");   printf("The result is %f\n", area);   return 0;}