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-rw-r--r--constants/misc_constants.asm3
1 files changed, 3 insertions, 0 deletions
diff --git a/constants/misc_constants.asm b/constants/misc_constants.asm
index a542b4a7..8bd6f223 100644
--- a/constants/misc_constants.asm
+++ b/constants/misc_constants.asm
@@ -10,3 +10,6 @@ DEF TRUE EQU 1
; input
DEF NO_INPUT EQU 0
+
+; SGB command MLT_REQ can be used to detect SGB hardware
+DEF JOYP_SGB_MLT_REQ EQU %00000011