From 10a1e6c860f3ab1ec3ebfd74fdd5979613f5d04b Mon Sep 17 00:00:00 2001
From: Remy Oukaour <remy.oukaour@gmail.com>
Date: Sun, 24 Dec 2017 12:52:05 -0500
Subject: [PATCH] Support old one-argument sound_duty macro, similar to
 callab/callba legacy support

---
 macros/scripts/audio.asm | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/macros/scripts/audio.asm b/macros/scripts/audio.asm
index 3766785ba..83ff44963 100644
--- a/macros/scripts/audio.asm
+++ b/macros/scripts/audio.asm
@@ -72,7 +72,11 @@ soundinput: macro
 	enum sound_duty_cmd ; $de
 sound_duty: macro
 	db sound_duty_cmd
+	if _NARG == 4
 	db \1 | (\2 << 2) | (\3 << 4) | (\4 << 6) ; duty sequence
+	else
+	db \1 ; one-byte duty value for legacy support
+	endc
 	endm
 
 	enum togglesfx_cmd ; $df