2 files changed, 17 insertions, 0 deletions
diff --git a/lib/inc/cpu.h b/lib/inc/cpu.h
index eb09291..2d367cb 100644
--- a/lib/inc/cpu.h
+++ b/lib/inc/cpu.h
@@ -17,6 +17,7 @@ void cli();
 void sti();
 void hlt();
 void idle();
+void loop();
 
 static inline void spinlock(int *ptr)
 {
diff --git a/lib/inc/sys.h b/lib/inc/sys.h
new file mode 100644
index 0000000..aaeb6ca
--- /dev/null
+++ b/lib/inc/sys.h
@@ -0,0 +1,16 @@
+// MIT License, Copyright (c) 2020 Marvin Borner
+// Syscall implementation
+
+#ifndef SYS_H
+#define SYS_H
+
+enum sys { SYS_HALT, SYS_EXEC };
+
+int sys0(enum sys num);
+int sys1(enum sys num, int d1);
+int sys2(enum sys num, int d1, int d2);
+int sys3(enum sys num, int d1, int d2, int d3);
+int sys4(enum sys num, int d1, int d2, int d3, int d4);
+int sys5(enum sys num, int d1, int d2, int d3, int d4, int d5);
+
+#endif