From 283ed06d7e7f70eeeea0974b0468893b3e69c9bc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Juhani=20Krekel=C3=A4?= <juhani@krekelä.fi>
Date: Tue, 6 Jul 2021 21:50:56 +0300
Subject: [PATCH] Ignore deleted files in bootloader

---
 boot.asm | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/boot.asm b/boot.asm
index 26ba813..24f511d 100644
--- a/boot.asm
+++ b/boot.asm
@@ -120,14 +120,17 @@ search_root:
 		cmp byte [si], 0
 		je .end
 
+		; Deleted file?
+		cmp byte [si], 0xe5
+		je .skipentry
+
 		test byte [si + 11], 0x08 + 0x10
 		jnz .skipentry
 
 		; Make sure the file has non-zero size
+		; File size must be <32K anyways so don't bother with >64K
 		cmp word [si + 28], 0
 		jne .isfile
-		cmp word [si + 30], 0
-		jne .isfile
 
 	.skipentry:
 		add si, 32