diff --git a/constants.asm b/constants.asm
index 75d902496..70405446e 100644
--- a/constants.asm
+++ b/constants.asm
@@ -23,99 +23,7 @@ FarCall    EQU $08
 Bankswitch EQU $10
 JumpTable  EQU $28
 
-
-dwb: MACRO
-	dw \1
-	db \2
-	ENDM
-
-dbw: MACRO
-	db \1
-	dw \2
-	ENDM
-
-dn: MACRO
-	db \1 << 4 + \2
-	ENDM
-
-dt: MACRO ; three-byte (big-endian)
-	db (\1 >> 16) & $ff
-	db (\1 >> 8) & $ff
-	db \1 & $ff
-	ENDM
-
-bigdw: MACRO ; big-endian word
-	dw ((\1)/$100) + (((\1)&$ff)*$100)
-	ENDM
-
-callab: MACRO ; address, bank
-	ld hl, \1
-	ld a, BANK(\1)
-	rst FarCall
-	ENDM
-
-callba: MACRO ; bank, address
-	ld a, BANK(\1)
-	ld hl, \1
-	rst FarCall
-	ENDM
-
-TX_RAM: MACRO
-	db 1
-	dw \1
-	ENDM
-
-TX_FAR: MACRO
-	db $16
-	dw \1
-	db BANK(\1)
-	ENDM
-
-RGB: MACRO
-	dw ((\3 << 10) | (\2 << 5) | (\1))
-	ENDM
-
-note: MACRO
-	db \1
-	ENDM
-
-; It's better to use *coord than FuncCoord.
-FuncCoord: MACRO
-Coord = $c4a0 + 20 * \2 + \1
-	ENDM
-
-bccoord: MACRO
-	FuncCoord \1, \2
-	ld bc, Coord
-	ENDM
-	
-decoord: MACRO
-	FuncCoord \1, \2
-	ld de, Coord
-	ENDM
-
-hlcoord: MACRO
-	FuncCoord \1, \2
-	ld hl, Coord
-	ENDM
-
-
-; pic animations
-frame: MACRO
-	db \1
-	db \2
-	ENDM
-setrepeat: MACRO
-	db $fe
-	db \1
-	ENDM
-dorepeat: MACRO
-	db $fd
-	db \1
-	ENDM
-endanim: MACRO
-	db $ff
-	ENDM
+INCLUDE "macros.asm"
 
 
 NONE       EQU 0
diff --git a/macros.asm b/macros.asm
new file mode 100644
index 000000000..e5291ade5
--- /dev/null
+++ b/macros.asm
@@ -0,0 +1,95 @@
+; rgbds macros
+
+dwb: MACRO
+	dw \1
+	db \2
+	ENDM
+
+dbw: MACRO
+	db \1
+	dw \2
+	ENDM
+
+dn: MACRO
+	db \1 << 4 + \2
+	ENDM
+
+dt: MACRO ; three-byte (big-endian)
+	db (\1 >> 16) & $ff
+	db (\1 >> 8) & $ff
+	db \1 & $ff
+	ENDM
+
+bigdw: MACRO ; big-endian word
+	dw ((\1)/$100) + (((\1)&$ff)*$100)
+	ENDM
+
+callab: MACRO ; address, bank
+	ld hl, \1
+	ld a, BANK(\1)
+	rst FarCall
+	ENDM
+
+callba: MACRO ; bank, address
+	ld a, BANK(\1)
+	ld hl, \1
+	rst FarCall
+	ENDM
+
+TX_RAM: MACRO
+	db 1
+	dw \1
+	ENDM
+
+TX_FAR: MACRO
+	db $16
+	dw \1
+	db BANK(\1)
+	ENDM
+
+RGB: MACRO
+	dw ((\3 << 10) | (\2 << 5) | (\1))
+	ENDM
+
+note: MACRO
+	db \1
+	ENDM
+
+; It's better to use *coord than FuncCoord.
+FuncCoord: MACRO
+Coord = $c4a0 + 20 * \2 + \1
+	ENDM
+
+bccoord: MACRO
+	FuncCoord \1, \2
+	ld bc, Coord
+	ENDM
+	
+decoord: MACRO
+	FuncCoord \1, \2
+	ld de, Coord
+	ENDM
+
+hlcoord: MACRO
+	FuncCoord \1, \2
+	ld hl, Coord
+	ENDM
+
+
+; pic animations
+frame: MACRO
+	db \1
+	db \2
+	ENDM
+setrepeat: MACRO
+	db $fe
+	db \1
+	ENDM
+dorepeat: MACRO
+	db $fd
+	db \1
+	ENDM
+endanim: MACRO
+	db $ff
+	ENDM
+