Reorganized sys functions

lib/sys/proc_mac.q

@@ -0,0 +1,15 @@
+exit(status Int) {
+	syscall(0x2000001, status)
+}
+
+fork() -> Int {
+	return syscall(0x2000002)
+}
+
+execve(path Pointer, argv Pointer, envp Pointer) -> Int {
+	return syscall(0x200003B, path, argv, envp)
+}
+
+waitid(type Int, id Int, info Pointer, options Int) -> Int {
+	return syscall(0x20000AD, type, id, info, options)
+}