diff --git a/m4-bochs/readme.md b/m4-bochs/readme.md
index 56427cf..6d3f27e 100644
--- a/m4-bochs/readme.md
+++ b/m4-bochs/readme.md
@@ -1,5 +1,13 @@
 # Testing on local emulator bochfs
+We have configuration for emulator in bochsrc and assembler code in hello.asm.
 
+## Building binary
+> nasm hello.asm -f bin -o hello.bin
+
+## Build image
+> dd if=hello.bin of=boot.img bs=512 count=1 conv=notrunc 
+
+## Run emulator
 >  bochs -f bochsrc -q
 
 ![Bochs screenshot](./screen/bochs.png)