1 files changed, 1 insertions, 75 deletions
diff --git a/main.asm b/main.asm
index 7dfdbc060..f805a700e 100644
--- a/main.asm
+++ b/main.asm
@@ -861,81 +861,7 @@ AddNTimes: ; 0x30fe
 ; 0x3105
 
 
-SimpleMultiply: ; 3105
-; Return a * c.
-	and a
-	ret z
-
-	push bc
-	ld b, a
-	xor a
-.loop
-	add c
-	dec b
-	jr nz, .loop
-	pop bc
-	ret
-; 3110
-
-
-SimpleDivide: ; 3110
-; Divide a by c. Return quotient b and remainder a.
-	ld b, 0
-.loop
-	inc b
-	sub c
-	jr nc, .loop
-	dec b
-	add c
-	ret
-; 3119
-
-
-Multiply: ; 3119
-; Multiply hMultiplicand (3 bytes) by hMultiplier. Result in hProduct.
-; All values are big endian.
-	push hl
-	push bc
-
-	callab _Multiply
-
-	pop bc
-	pop hl
-	ret
-; 3124
-
-
-Divide: ; 3124
-; Divide hDividend length b (max 4 bytes) by hDivisor. Result in hQuotient.
-; All values are big endian.
-	push hl
-	push de
-	push bc
-	ld a, [hROMBank]
-	push af
-	ld a, BANK(_Divide)
-	rst Bankswitch
-
-	call _Divide
-
-	pop af
-	rst Bankswitch
-	pop bc
-	pop de
-	pop hl
-	ret
-; 3136
-
-
-SubtractSigned: ; 3136
-; Return a - b, sign in carry.
-	sub b
-	ret nc
-	cpl
-	add 1
-	scf
-	ret
-; 313d
+INCLUDE "common/math.asm"
 
 
 PrintLetterDelay: ; 313d