Initial Commit

user/include/syscalls.h

@@ -0,0 +1,15 @@
+#pragma once
+
+static inline long syscall(long num, long a1, long a2, long a3)
+{
+    long ret;
+
+    asm volatile (
+        "syscall"
+        : "=a"(ret)
+        : "a"(num), "D"(a1), "S"(a2), "d"(a3)
+        :
+    );
+
+    return ret;
+}