xv6-riscv-kernel/syscall.h

#define SYS_fork 1
#define SYS_exit 2
#define SYS_wait 3
#define SYS_cons_putc 4
primitive fork and exit system calls 2006-06-15 18:02:20 +02:00			`#define SYS_fork 1`
			`#define SYS_exit 2`
sleep, wakeup, wait, exit 2006-06-15 21:58:01 +02:00			`#define SYS_wait 3`
system call arguments 2006-06-26 17:11:19 +02:00			`#define SYS_cons_putc 4`