1 files changed, 2 insertions, 3 deletions
diff --git a/user.h b/user.h
index 428d786..8016eac 100644
--- a/user.h
+++ b/user.h
@@ -1,14 +1,12 @@
+// system calls
 int fork(void);
 int exit(void) __attribute__((noreturn));
 int wait(void);
-int cons_putc(int);
 int pipe(int*);
 int write(int, void*, int);
 int read(int, void*, int);
 int close(int);
 int kill(int);
-int panic(char*);
-int cons_puts(char*);
 int exec(char *, char **);
 int open(char *, int);
 int mknod (char*,short,short,short);
@@ -21,6 +19,7 @@ int dup(int);
 int getpid();
 char *sbrk(int);
 
+// ulib.c
 int stat(char *, struct stat *stat);
 int puts(char*);
 char* strcpy(char*, char*);