b8

commit 0f43fa18fd10edabf459f6e62d29ac390e01863e
parent ead8ea2ea690e27ea29ab5da5d886e441c59cd0e
Author: Léo Villeveygoux <leo.villeveygoux@etu.u-bordeaux.fr>
Date:   Sun,  9 Jul 2017 20:02:27 +0200

draw.asm: use byte registers to handle coord wrap

Diffstat:
M
draw.asm
 | 
8
++++----

1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/draw.asm b/draw.asm
@@ -32,25 +32,25 @@ draw_loop:
 	mov cl, 1b
 	and cl, al
 	jz .check_right
-	sub dx, 1
+	dec dl
 
 	.check_right:
 	mov cl, 10b
 	and cl, al
 	jz .check_up
-	add dx, 1
+	inc dl
 
 	.check_up:
 	mov cl, 100b
 	and cl, al
 	jz .check_down
-	sub dx, 0x100
+	dec dh
 
 	.check_down:
 	mov cl, 1000b
 	and cl, al
 	jz .update_coords
-	add dx, 0x100
+	inc dh
 	
 	.update_coords:
 	mov [coords], edx