diff --git a/inc/stdlib.h b/inc/stdlib.h
index 53c7f75..807e321 100644
--- a/inc/stdlib.h
+++ b/inc/stdlib.h
@@ -27,6 +27,9 @@
 uint64_t strtoul(const char *str, char **endptr, int32_t base);
 int64_t strtol(const char *str, char **endptr, int32_t base);
 
+int32_t atoi(const char* str);
+int64_t atol(const char* str);
+
 float strtof(const char *str, char **endptr);
 
 void abort(void);
diff --git a/src/stdlib.c b/src/stdlib.c
index f0053e2..35d33df 100644
--- a/src/stdlib.c
+++ b/src/stdlib.c
@@ -276,6 +276,21 @@
 
 
 
+int32_t atoi(const char* str)
+{
+	char* endptr;
+	return (int32_t)strtol(str, &endptr, 10);
+}
+
+
+int64_t atol(const char* str)
+{
+	char* endptr;
+	return strtol(str, &endptr, 10);
+}
+
+
+
 void abort(void)
 {
 	rtlibc_abort_handler();