diff --git a/.gitignore b/.gitignore
index 1e9427b3a397ecdf9576df4970c8bb988cef4497..d12f18d20ead399074ed6c13325557d09c2abbff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,5 @@
 # ignore everything
-*
+*.*
 
 
 # specify files to track
@@ -11,6 +11,7 @@
 # specifics for C
 !*.c
 !*.h
+!*.asm
 !Makefile
 
 # specifics for java
diff --git a/example.asm b/example.asm
new file mode 100644
index 0000000000000000000000000000000000000000..f661c1833062014b84d0272fe1d2c4c9cc7b2ca3
--- /dev/null
+++ b/example.asm
@@ -0,0 +1,23 @@
+; author: Brahms (brahms@spline.de)
+
+global collatz
+
+section .text
+
+collatz:
+  xor rax, rax
+.go:
+  cmp rdi, 1
+  jle .end
+
+  mov rcx, rdi
+  lea rdx, [rdi+1+rdi*2]
+
+  shr rdi, 1
+  cmovc rdi, rcx
+  cmovc rdi, rdx
+
+  inc rax
+  jmp .go
+.end:
+  ret