Refactor

src/lib/vga.c

@@ -4,15 +4,13 @@
 // Charpos = 0xb8000 + 2(row*80 + col)
 
 #define VIDEO_MEM (char*)0xb8000
-static char* cursor_pos = VIDEO_MEM;
 static int cursor_y = 0;
 
-void set_cursor_pos(unsigned int row, unsigned int col) { cursor_pos = (char*)(VIDEO_MEM + 2*(row*80 + col)); }
+char* get_cursor_pos(unsigned int row, unsigned int col) { return (char*)(VIDEO_MEM + 2*(row*80 + col)); }
 
 void print(char* str, unsigned int str_len) {
 	for( unsigned int i = 0; i < str_len; i++ ) {
-		set_cursor_pos(i, cursor_y); 	// set cursor pos
-		*cursor_pos = str[i];		// Write char to video memory
+		*get_cursor_pos(i, cursor_y) = str[i]; 	// write to video memory 
 	}
 }