diff --git a/src/call.rs b/src/call.rs
index bc1af0d..4f6991b 100644
--- a/src/call.rs
+++ b/src/call.rs
@@ -377,3 +377,9 @@ pub fn write(fd: usize, buf: &[u8]) -> Result<usize> {
 pub fn sched_yield() -> Result<usize> {
     unsafe { syscall0(SYS_YIELD) }
 }
+
+
+/// NMI
+pub fn nmi() -> Result<usize>{
+    unsafe { syscall0(SYS_NMI) }
+}
\ No newline at end of file
diff --git a/src/number.rs b/src/number.rs
index 2b9205a..751601c 100644
--- a/src/number.rs
+++ b/src/number.rs
@@ -71,3 +71,4 @@ pub const SYS_SIGRETURN: usize =119;
 pub const SYS_UMASK: usize =    60;
 pub const SYS_WAITPID: usize =  7;
 pub const SYS_YIELD: usize =    158;
+pub const SYS_NMI: usize =    159;
\ No newline at end of file