From 2a66650ee06ac97f42510526d52772dfccb16dcc Mon Sep 17 00:00:00 2001
From: mykola2312 <49044616+mykola2312@users.noreply.github.com>
Date: Wed, 7 Aug 2024 18:00:01 +0300
Subject: [PATCH] fix bug when edx caused too big number for division

---
 src/mbr_test.s       | 2 +-
 src/test_disk_read.s | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/mbr_test.s b/src/mbr_test.s
index 15b1fa2..72e3d79 100644
--- a/src/mbr_test.s
+++ b/src/mbr_test.s
@@ -36,7 +36,7 @@ entry:
 .bootloader:
     call serial_init
 
-    mov $2342424, %eax
+    mov $9999999, %eax
     call lba_to_chs
 .halt:
     jmp .halt
diff --git a/src/test_disk_read.s b/src/test_disk_read.s
index 9244808..7748bec 100644
--- a/src/test_disk_read.s
+++ b/src/test_disk_read.s
@@ -48,6 +48,7 @@ lba_to_chs:
     # chs->sector = (lba % conf->num_sectors + 1);
     mov -4(%bp), %eax       # LBA
     movw disk_sectors, %bx
+    xor %dx, %dx
     div %ebx
     # dx - sector, but needs +1
     inc %dx