/* pipe system call for Linux/MIPS *//*see uClibc's sh/pipe.c and glibc-2.2.4's mips/pipe.S */#include <errno.h>#include <unistd.h>#include <syscall.h>int pipe(int *fd){    register long int res __asm__ ("$2"); // v0    register long int res2 __asm__ ("$3"); // v1    asm ("move\t$4,%2\n\t"		// $4 = a0	 "syscall"		/* Perform the system call.  */	 : "=r" (res)	 : "0" (__NR_pipe), "r" (fd)	 : "$4", "$7");	fd[0] = res;	fd[1] = res2;	return(0);}