diff --git a/llrtc/Makefile b/llrtc/Makefile
index bde100e..b15eac5 100644
--- a/llrtc/Makefile
+++ b/llrtc/Makefile
@@ -17,6 +17,6 @@ clean:
 	make -C lib clean
 
 install: ir
-	make -C lib clean-test
+	cp llrt_*.ll ../llvm/llrt
 	make -C lib clean-temp
 	
\ No newline at end of file
diff --git a/llrtc/lib/Makefile b/llrtc/lib/Makefile
index 8c9361d..9dbfb27 100644
--- a/llrtc/lib/Makefile
+++ b/llrtc/lib/Makefile
@@ -1,5 +1,5 @@
 OUTPUT = llrt
-SOURCES = udivmod64.c sdivmod64.c
+SOURCES = udivmod64.c sdivmod64.c div64.c mod64.c
 TESTS = test_udivmod64.c test_sdivmod64.c
 
 CLANG = clang
diff --git a/llrtc/lib/div64.c b/llrtc/lib/div64.c
new file mode 100644
index 0000000..8466965
--- /dev/null
+++ b/llrtc/lib/div64.c
@@ -0,0 +1,11 @@
+#include "llrt.h"
+
+uint64_t udiv64(uint64_t dividend, uint64_t divisor)
+{
+    return udivmod64(dividend, divisor, NULL);
+}
+
+int64_t sdiv64(int64_t dividend, int64_t divisor)
+{
+    return sdivmod64(dividend, divisor, NULL);
+}
diff --git a/llrtc/lib/llrt.h b/llrtc/lib/llrt.h
index 0d26309..4e9e348 100644
--- a/llrtc/lib/llrt.h
+++ b/llrtc/lib/llrt.h
@@ -3,10 +3,17 @@
 
 #include <stdint.h>
 
+#define NULL 0
 #define BITS_PER_BYTE 8
 
 uint64_t udivmod64(uint64_t dividend, uint64_t divisor, uint64_t *remainder);
 int64_t sdivmod64(int64_t dividend, int64_t divisor, int64_t *remainder);
 
+uint64_t udiv64(uint64_t dividend, uint64_t divisor);
+int64_t sdiv64(int64_t dividend, int64_t divisor);
+
+uint64_t umod64(uint64_t dividend, uint64_t divisor);
+int64_t smod64(int64_t dividend, int64_t divisor);
+
 #endif /* LLRT_H_ */
 
diff --git a/llrtc/lib/mod64.c b/llrtc/lib/mod64.c
new file mode 100644
index 0000000..875f6b9
--- /dev/null
+++ b/llrtc/lib/mod64.c
@@ -0,0 +1,15 @@
+#include "llrt.h"
+
+uint64_t umod64(uint64_t dividend, uint64_t divisor)
+{
+    uint64_t rem;
+    udivmod64(dividend, divisor, &rem);
+    return rem;
+}
+
+int64_t smod64(int64_t dividend, int64_t divisor)
+{
+    int64_t rem;
+    sdivmod64(dividend, divisor, &rem);
+    return rem;
+}