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-rw-r--r--constants.asm6
1 files changed, 6 insertions, 0 deletions
diff --git a/constants.asm b/constants.asm
index e161c7ac..7b34b766 100644
--- a/constants.asm
+++ b/constants.asm
@@ -2625,6 +2625,12 @@ oct5 EQU $E2
oct6 EQU $E1
oct7 EQU $E0
+;duty
+duty12_5 EQU $0
+duty25 EQU $1
+duty50 EQU $2
+duty75 EQU $3
+
;Write a music note
;format: mus_note pitch delay
mus_note: MACRO