tune.com --hbios check for devices

Don't panic if no --hbios supported devices

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