From 7a1070235521910b7716fd18609aa0c965ff88fb Mon Sep 17 00:00:00 2001
From: b1ackmai1er <difficultylevelhigh@gmail.com>
Date: Fri, 8 May 2020 06:18:10 +0800
Subject: [PATCH 1/2] tune.com --hbios check for devices

Don't panic if no --hbios supported devices
---
 Source/Apps/Tune/cli.inc | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/Source/Apps/Tune/cli.inc b/Source/Apps/Tune/cli.inc
index c8ac9b8c..b08fdd52 100644
--- a/Source/Apps/Tune/cli.inc
+++ b/Source/Apps/Tune/cli.inc
@@ -7,15 +7,20 @@ CLI_ABRT_IF_OPT_FIRST:
 	RET
 
 CLI_HAVE_HBIOS_SWITCH:
- 	LD	HL, CLIARGS		; TEST FOR --HBIOS ON COMNMAND LINE
+ 	LD	HL, CLIARGS		; TEST FOR --HBIOS ON COMMAND LINE
 	LD	DE, HBIOSOPT
 	CALL	STRINDEX
 	JR	NZ, CLI_HAVE_HBIOS_SWITCH1
-	OR	$FF			; IS NOT HBIOS
+	OR	$FF			; MATCHED --HBIOS 
 	LD	(HBIOSMD), A
-	RET
-CLI_HAVE_HBIOS_SWITCH1:
-	AND	0			; IS HBIOS
+	LD	BC,(BF_SYSGET*256)+BF_SND	; CHECK WE HAVE
+	RST	08
+	XOR	A
+	CP	E
+	RET	NZ
+	JP	ERRHW
+CLI_HAVE_HBIOS_SWITCH1			; NOT MATCHED --HBIOS
+	XOR	A
 	LD	(HBIOSMD), A
 	RET
 

From f6467e86711a6d378659f768ac3106c11f355777 Mon Sep 17 00:00:00 2001
From: b1ackmai1er <difficultylevelhigh@gmail.com>
Date: Fri, 8 May 2020 06:22:27 +0800
Subject: [PATCH 2/2] Update cli.inc

---
 Source/Apps/Tune/cli.inc | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Source/Apps/Tune/cli.inc b/Source/Apps/Tune/cli.inc
index b08fdd52..9f8b2551 100644
--- a/Source/Apps/Tune/cli.inc
+++ b/Source/Apps/Tune/cli.inc
@@ -13,10 +13,10 @@ CLI_HAVE_HBIOS_SWITCH:
 	JR	NZ, CLI_HAVE_HBIOS_SWITCH1
 	OR	$FF			; MATCHED --HBIOS 
 	LD	(HBIOSMD), A
-	LD	BC,(BF_SYSGET*256)+BF_SND	; CHECK WE HAVE
-	RST	08
-	XOR	A
-	CP	E
+	LD	BC,(BF_SYSGET*256)+BF_SND
+	RST	08			; CHECK WE HAVE
+	XOR	A			; AT LEAST ONE
+	CP	E			; SOUND DEVICE
 	RET	NZ
 	JP	ERRHW
 CLI_HAVE_HBIOS_SWITCH1			; NOT MATCHED --HBIOS