diff --git a/libctru/include/3ds/svc.h b/libctru/include/3ds/svc.h
index d498d45..733db1a 100644
--- a/libctru/include/3ds/svc.h
+++ b/libctru/include/3ds/svc.h
@@ -62,6 +62,8 @@ void svcSleepThread(s64 ns);
 s32  svcSetThreadPriority(Handle thread, s32 prio);
 s32  svcCreateMutex(Handle* mutex, bool initially_locked);
 s32  svcReleaseMutex(Handle handle);
+s32  svcCreateSemaphore(Handle* semaphore, s32 initial_count, s32 max_count);
+s32  svcReleaseSemaphore(s32* count, Handle semaphore, s32 release_count);
 s32  svcCreateEvent(Handle* event, u8 reset_type);
 s32  svcSignalEvent(Handle handle);
 s32  svcClearEvent(Handle handle);
diff --git a/libctru/source/svc.s b/libctru/source/svc.s
index 2f2eb0e..3fac109 100644
--- a/libctru/source/svc.s
+++ b/libctru/source/svc.s
@@ -264,3 +264,21 @@ svcOutputDebugString:
 	ldr r2, [sp], #4
 	str r1, [r2]
 	bx  lr
+
+.global svcCreateSemaphore
+.type svcCreateSemaphore, %function
+svcCreateSemaphore:
+    push {r0}
+    svc 0x15
+    pop {r3}
+    str r1, [r3]
+    bx  lr
+    
+.global svcReleaseSemaphore
+.type svcReleaseSemaphore, %function
+svcReleaseSemaphore:
+    push {r0}
+    svc 0x16
+    pop {r3}
+    str r1, [r3]
+    bx  lr
\ No newline at end of file