From e70386bcfbb293817262fcbe6940fdd009227a10 Mon Sep 17 00:00:00 2001
From: Ain <41307858+nero@users.noreply.github.com>
Date: Thu, 17 Oct 2019 19:19:12 +0000
Subject: [PATCH] Mask raw directory bit when giving drive number to int13

---
 kernel/drive.asm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/drive.asm b/kernel/drive.asm
index 2e1280a..447fb3a 100644
--- a/kernel/drive.asm
+++ b/kernel/drive.asm
@@ -43,6 +43,7 @@ drive_read:
   mov si, 5        ; retry count
 .try:
   mov dl, [bx+fcb_drv] ; drive number
+  and dl, 0x7F
   dec dl
   mov ax, 0x0201
   mov bx, diskbuf