From ba472e81b23d3bf3b0c39372c55c488e57cb90c5 Mon Sep 17 00:00:00 2001
From: Nero <41307858+nero@users.noreply.github.com>
Date: Wed, 6 Nov 2019 21:49:19 +0000
Subject: [PATCH] bios: Fix wrong word mask in setsec

---
 bios/8086.asm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bios/8086.asm b/bios/8086.asm
index 6600127..594dff9 100644
--- a/bios/8086.asm
+++ b/bios/8086.asm
@@ -162,7 +162,7 @@ SETTRK:
   RET
 
 SETSEC:
-  AND WORD [DISKCX], 0xFFA0
+  AND WORD [DISKCX], 0xFFC0
   OR BYTE [DISKCX], CL
   RET