Fix audio init

Author: dmitry-shechtman

README.md

@@ -29,6 +29,7 @@ All the differences from the animated GIF (that we're aware of):
 ## Thanks
 
 [calc84maniac](https://github.com/calc84maniac/) for some mad optimisations
+[ISSOtm](https://github.com/ISSOtm) for saner optimisations
 
 ## Licenses
 

inc/judge.inc

@@ -230,4 +230,3 @@ IF !DEF (JUDGE_MUSIC)
 ENDC
 
 DEF MUSIC_DELAY    EQU $40
-DEF MUSIC_STEREO   EQU   0

src/judge/judge_main.asm

@@ -31,12 +31,13 @@ JudgeMain:
 
 IF JUDGE_MUSIC
 
+	; Optimized by ISSOtm
+	ld hl, rNR52               ; Load the audio master register's address into HL
+	ld [hl], a                 ; Turn the APU off
 	dec a                      ; A is zero from previous operations
-	ldh [rNR52], a             ; Enable all channels
-IF !MUSIC_STEREO
-	ldh [rNR51], a             ; Play all channels on both speakers
-ENDC
-	ldh [rNR50], a             ; Set the volume to max
+	ld [hld], a                ; Turn the APU on
+	ld [hld], a                ; Enable all channels
+	ld [hl], $77               ; Set max volume but not VIN
 
 	ld hl, song_hideout
 	call hUGE_init