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-rw-r--r--constants.asm4
1 files changed, 4 insertions, 0 deletions
diff --git a/constants.asm b/constants.asm
index 76d186b88..41f713b54 100644
--- a/constants.asm
+++ b/constants.asm
@@ -5,6 +5,10 @@ dwb: MACRO
db \2
ENDM
+dn: MACRO
+ db \1 << 4 + \2
+ ENDM
+
callab: MACRO
ld hl, \1
ld a, BANK(\1)