From 32b02147925566bac93bf71b002860335583574c Mon Sep 17 00:00:00 2001
From: ElectroDeoxys <ElectroDeoxys@gmail.com>
Date: Thu, 9 Sep 2021 08:51:12 +0100
Subject: Split home bank

---
 src/home/math.asm | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 src/home/math.asm

(limited to 'src/home/math.asm')

diff --git a/src/home/math.asm b/src/home/math.asm
new file mode 100644
index 0000000..1cf39dd
--- /dev/null
+++ b/src/home/math.asm
@@ -0,0 +1,38 @@
+; returns a *= 10
+ATimes10: ; 0c4b (0:0c4b)
+	push de
+	ld e, a
+	add a
+	add a
+	add e
+	add a
+	pop de
+	ret
+
+; returns hl *= 10
+HLTimes10: ; 0c53 (0:0c53)
+	push de
+	ld l, a
+	ld e, a
+	ld h, $00
+	ld d, h
+	add hl, hl
+	add hl, hl
+	add hl, de
+	add hl, hl
+	pop de
+	ret
+
+; returns a /= 10
+; returns carry if a % 10 >= 5
+ADividedBy10: ; 0c5f (0:0c5f)
+	push de
+	ld e, -1
+.asm_c62
+	inc e
+	sub 10
+	jr nc, .asm_c62
+	add 5
+	ld a, e
+	pop de
+	ret
-- 
cgit v1.2.3


From 0017fc2d171c87d7bab4c9be90e1069ae95a8071 Mon Sep 17 00:00:00 2001
From: ElectroDeoxys <ElectroDeoxys@gmail.com>
Date: Thu, 9 Sep 2021 08:54:29 +0100
Subject: Remove home bank address comments

---
 src/home/math.asm | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'src/home/math.asm')

diff --git a/src/home/math.asm b/src/home/math.asm
index 1cf39dd..8e54cb8 100644
--- a/src/home/math.asm
+++ b/src/home/math.asm
@@ -1,5 +1,5 @@
 ; returns a *= 10
-ATimes10: ; 0c4b (0:0c4b)
+ATimes10:
 	push de
 	ld e, a
 	add a
@@ -10,7 +10,7 @@ ATimes10: ; 0c4b (0:0c4b)
 	ret
 
 ; returns hl *= 10
-HLTimes10: ; 0c53 (0:0c53)
+HLTimes10:
 	push de
 	ld l, a
 	ld e, a
@@ -25,7 +25,7 @@ HLTimes10: ; 0c53 (0:0c53)
 
 ; returns a /= 10
 ; returns carry if a % 10 >= 5
-ADividedBy10: ; 0c5f (0:0c5f)
+ADividedBy10:
 	push de
 	ld e, -1
 .asm_c62
-- 
cgit v1.2.3