HW1

code/userprog/syscall.h

@@ -23,19 +23,22 @@
 #define SC_Exec		2
 #define SC_Join		3
 #define SC_Create	4
-#define SC_Remove       5
+#define SC_Remove 5
 #define SC_Open		6
 #define SC_Read		7
 #define SC_Write	8
-#define SC_Seek         9
-#define SC_Close	10
-#define SC_ThreadFork	11
+#define SC_Seek   9
+#define SC_Close	      10
+#define SC_ThreadFork	  11
 #define SC_ThreadYield	12
-#define SC_ExecV	13
+#define SC_ExecV        13
 #define SC_ThreadExit   14
 #define SC_ThreadJoin   15
-#define SC_Add		42
-#define SC_MSG		100
+
+#define SC_PrintInt     16
+
+#define SC_Add		      42
+#define SC_MSG	        100
 
 #ifndef IN_ASM
 
@@ -109,7 +112,7 @@ typedef int OpenFileId;
  */
 
 #define SysConsoleInput	0  
-#define SysConsoleOutput	1  
+#define SysConsoleOutput 1  
  
 /* Create a Nachos file, with name "name" */
 /* Note: Create does not open the file.   */
@@ -175,7 +178,9 @@ int ThreadJoin(ThreadId id);
 /*
  * Deletes current thread and returns ExitCode to every waiting lokal thread.
  */
-void ThreadExit(int ExitCode);	
+void ThreadExit(int ExitCode);
+
+void PrintInt(int number);
 
 #endif /* IN_ASM */