Re: scm_remember_upto_here asm volatile

[Dirk Herrmann]

Kevin Ryde wrote:

> +  do {                                          \
> +    __asm__ __volatile__ ("" : : "g" (x));      \
> +  } while (0)
>  
Hello Kevin,

would you mind to add an explanation of the syntax of that construct? 
For example, what does the "g" mean? Since we don't have many asm 
instructions in guile, it is fair to assume that most of the developers 
don't know about the exact meaning of that construct.

Thanks a lot
Dirk Herrmann