X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=debug%2Fprograms%2Fdebug.c;h=3ba51bca9249cd768ee298515ac2456477eccdad;hb=87b55cae7014a375588a3d24d03903ca170f6d7e;hp=20b1cdcf29f18d6e042884f18c3f86ad915dde5a;hpb=22541b6099cb176fd3ec34f9e893da9e2baaa297;p=riscv-tests.git

diff --git a/debug/programs/debug.c b/debug/programs/debug.c
index 20b1cdc..3ba51bc 100644
--- a/debug/programs/debug.c
+++ b/debug/programs/debug.c
@@ -5,6 +5,24 @@
 
 unsigned int crc32a(uint8_t *message, unsigned int size);
 
+unsigned int fib(unsigned int n)
+{
+    if (n == 0) {
+        return 0;
+    }
+
+    unsigned int a = 0;
+    unsigned int b = 1;
+
+    for (unsigned int i = 1; i < n; i++) {
+        unsigned int next = a + b;
+        a = b;
+        b = next;
+    }
+
+    return b;
+}
+
 void rot13(char *buf)
 {
     while (*buf) {