From 27e485a4205924cc8b4760dec4f0335a909e5d3a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Carlos=20Cuevas?= <josecarlos@doofinder.com>
Date: Tue, 9 Jun 2020 11:21:09 +0200
Subject: [PATCH] Fixed bug calculating the numbers in minefield

---
 mine.asm | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/mine.asm b/mine.asm
index 91ff439..321f14e 100644
--- a/mine.asm
+++ b/mine.asm
@@ -273,14 +273,17 @@ calcend:
 		pop     ax
 		ret
 
+; We don't check Y bounds as we have surrounded the field array
+; with padding zeroes, rendering this calculation correct if CX
+; is below or beyond the limits
 checksurroundings:
 		mov     byte [tempnumber], 0
 		push    ax
 		push    cx
+		sub     cx, 1
 		test    ax, ax
 		jz      axiszerofirstrow
 		sub     ax, 1
-		sub     cx, 1
 		call    calcnumber
 		add     ax, 1
 axiszerofirstrow:
@@ -314,8 +317,8 @@ axoutboundssecondrow:
 		jz      axiszerothirdrow
 		sub     ax, 1
 		call    calcnumber
-axiszerothirdrow:
 		add     ax, 1
+axiszerothirdrow:
 		call    calcnumber
 		add     ax, 1
 		cmp     ax, COLUMNS