From b800448bd50d97aeaa6c51303f7024c0046d77ec Mon Sep 17 00:00:00 2001
From: Michal Idziorek <m.i@gmx.at>
Date: Tue, 8 Jul 2014 17:04:11 +0200
Subject: moved idt stuff to C successfully

---
 kernel/console.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

(limited to 'kernel/console.c')

diff --git a/kernel/console.c b/kernel/console.c
index 48e5ee7..d5d4573 100644
--- a/kernel/console.c
+++ b/kernel/console.c
@@ -7,9 +7,27 @@ static int posy=0;
 
 void print_nextline()
 {
+    int i,x;
+
     posx=0;
     posy++;
-    if(posy>SCR_HEIGHT-2)posy=0;
+
+    if(posy>SCR_HEIGHT-2)
+    {	
+	for(i=1;i<SCR_HEIGHT-1;i++)
+	{
+	    
+	    for(x=1;x<SCR_WIDTH;x++)
+	    { 
+		char* video_mem=(char *)SCR_VIDEOMEM+((x)+(i-1)*SCR_WIDTH)*2;
+		char* video_mem2=(char *)SCR_VIDEOMEM+((x)+i*SCR_WIDTH)*2;
+
+		*video_mem=*video_mem2;
+	    }
+	}
+
+	posy--;
+    }
 }
 
 void print_hex(uint16_t val)
@@ -32,6 +50,34 @@ void print_hex(uint16_t val)
 }
 
 
+void print_string(char *str)
+{
+
+    while(*str!=0)
+    {
+	print_char(posx++,posy,*(str++));
+    }
+}
+
+void console_clear_screen()
+{
+    int x,y;
+    for(x=0;x<SCR_WIDTH;x++)
+    for(y=0;y<SCR_WIDTH;y++)
+    {
+	print_char_col(x,y," ",SCR_BLACK);
+	
+    }
+    posx=posy=0;
+
+}
+
+
+
+
+
+// helper_funcs
+
 void print_single_hex(int i)
 {
    if(i<10)print_char_col(posx,posy,'0'+i,SCR_GREEN); 
-- 
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