How do I specify immediate floating point numbers with inline assembly?

Question

When I try to compile this code:

#include 

main(int argc, char *argv[]) {
   double y = 0;

   __asm__ (\"fldl $150;\"
            \"fsqrt;\"         


        

Answer 1

I do not know of an assembly language which supports literal floating point constants for immediate use. The usual means is to declare initialized storage containing the floating point constant and referencing it:

const1:     dq  1.2345
...
     fldl    const1

For the example you give, it is possible to do this more directly:

printf ("%f\n", sqrt (150));

Otherwise, this must be an artificially complicated project, perhaps homework.