diff --git a/README.md b/README.md
index 81db91d..07fb5a3 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ The BIOS may hook into interrupts if necessary to provide its functionality.
 Depending on your hardware, a different BIOS binary may be used.
 
 The BDOS is in the 2K below the BIOS, it provides a filesystem driver to work atop of the BIOS.
-It is agnostic to the underlaying hardware configuration.
+It is agnostic to the underlaying hardware configuration, but different depending on the instruction set.
 A user program might overwrite memory up to the end of the BDOS.
 Upon program exit, the BIOS will reload the BDOS from disk.