1 files changed, 68 insertions, 0 deletions
diff --git a/kernel/console.c b/kernel/console.c
new file mode 100644
index 0000000..9381eed
--- /dev/null
+++ b/kernel/console.c
@@ -0,0 +1,68 @@
+#include <stdint.h>
+
+#include "console.h"
+
+static int posx=0;
+static int posy=0;
+
+void print_nextline()
+{
+    posx=0;
+    posy++;
+    if(posy>SCR_HEIGHT-2)posy=0;
+}
+
+void print_hex(uint16_t val)
+{
+    int i;
+
+	print_char_col(posx,posy,'0',SCR_WHITE); 
+	posx++;
+	print_char_col(posx,posy,'x',SCR_WHITE); 
+	posx++;
+
+    for(i=0;i<4;i++)
+    {
+	print_single_hex((val&0xf000)>>12);
+	val=val << 4;
+	
+
+    }
+
+}
+
+void print_single_hex(int i)
+{
+   if(i<10)print_char_col(posx,posy,'0'+i,SCR_GREEN); 
+   else if(i<16)print_char_col(posx,posy,'A'+i-10,SCR_GREEN); 
+   posx++;
+
+}
+
+
+void print_str(int x,int y,char *str)
+{
+    print_str_col(x,y,str,SCR_WHITE);
+}
+
+void print_char(int x, int y, char c)
+{
+    print_char_col(x,y,c,SCR_WHITE);
+}
+
+void print_str_col(int x,int y,char *str, char col)
+{
+
+    while(*str!=0)
+    {
+	print_char_col(x++,y,*(str++),col);
+    }
+
+}
+    
+void print_char_col(int x, int y, char c, char col)
+{
+    char* video_mem=(char *)SCR_VIDEOMEM+(x+y*SCR_WIDTH)*2;
+    video_mem[0]=c;
+    video_mem[1]=col;
+}