diff --git a/hello.asm b/hello.asm
new file mode 100644
index 0000000..a16e3fa
--- /dev/null
+++ b/hello.asm
@@ -0,0 +1,20 @@
+org BASE
+; COM program displaying hello world string
+
+main:
+  mov si, string
+  mov ah, 0x0e
+  xor bx, bx
+.loop:
+  lodsb
+  test al, al
+  jz .end
+  int 0x10
+  jmp .loop
+.end:
+  ret
+
+string:
+  db "Hello world!", 0x0A, 0x0D, 0
+
+%include "bootsig.inc"