From 1d7b0d970f93f753a11918da320f0133b010a06c Mon Sep 17 00:00:00 2001
From: Wayne Warthen <wwarthen@gmail.com>
Date: Mon, 21 Jul 2025 17:50:20 -0700
Subject: [PATCH] USB Floppy I/O Return Flags, Issue #456

---
 Source/HBIOS/ch376ufi.asm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Source/HBIOS/ch376ufi.asm b/Source/HBIOS/ch376ufi.asm
index e0eefbd6..5c005930 100644
--- a/Source/HBIOS/ch376ufi.asm
+++ b/Source/HBIOS/ch376ufi.asm
@@ -156,6 +156,7 @@ CH_UFI_READ:
 	POP	HL
 	LD	BC, 512
 	ADD	HL, BC
+	OR	A
 	RET
 ;
 ; ### Function 0x14 -- Disk Write (DIOWRITE)
@@ -194,6 +195,7 @@ CH_UFI_WRITE:
 	POP	HL
 	LD	BC, 512
 	ADD	HL, BC
+	OR	A
 	RET
 
 CH_UFI_VERIFY: