From 62a15d52bba04b5b72d739c150aae11adba09e57 Mon Sep 17 00:00:00 2001
From: Ain <41307858+nero@users.noreply.github.com>
Date: Thu, 26 Sep 2019 14:53:50 +0000
Subject: [PATCH] Save some bytes on printing hexnumbers

---
 lib/print.asm | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/lib/print.asm b/lib/print.asm
index dda25a1..906c6e5 100644
--- a/lib/print.asm
+++ b/lib/print.asm
@@ -1,11 +1,18 @@
 ; important functions in this file: kprintf
 
+; print a word
+; in: ax
+print16:
+  xchg ah,al
+  call print8
+  xchg ah,al
+
 ; print a byte
 ; in: al
 print8:
   push ax ; avoid destroying ah
   push bx
-  mov bx, 0x0000
+  xor bx, bx
   aam 16 ; high nibble moved into ah, low nibble into al
   add ax, 0x3030
   push ax
@@ -24,12 +31,3 @@ print8:
   mov ah, 0x0e
   int 0x10
   ret
-
-; print a word
-; in: ax
-print16:
-  xchg ah,al
-  call print8
-  xchg ah,al
-  call print8
-  ret