+
+#define CRT_COLOR_BLACK 0x0
+#define CRT_COLOR_RED 0x1
+#define CRT_COLOR_GREEN 0x2
+#define CRT_COLOR_YELLOW 0x3
+#define CRT_COLOR_BLUE 0x4
+#define CRT_COLOR_MAGENTA 0x5
+#define CRT_COLOR_CYAN 0x6
+#define CRT_COLOR_WHITE 0x7
+#define CRT_COLOR_INTENSITY 0x8
+
+#define CRT_COLOR_FG_MASK 0xf0
+#define CRT_COLOR_FG_SHIFT 4
+
+#define CRT_COLOR_BG_MASK 0xf
+#define CRT_COLOR_BG_SHIFT 0
+
+#define CRT_COLOR_BG(a) (((a) & CRT_COLOR_BG_MASK) >> CRT_COLOR_BG_SHIFT)
+#define CRT_COLOR_FG(a) (((a) & CRT_COLOR_FG_MASK) >> CRT_COLOR_FG_SHIFT)
+
+#define CRT_MAKE_COLOR(f,b) (((f) << CRT_COLOR_FG_SHIFT)|(b))
+
+#define CRT_BGCOLOR_NORMAL CRT_COLOR_BLACK
+#define CRT_FGCOLOR_NORMAL CRT_COLOR_WHITE
+
+#define CRT_COLOR_NORMAL CRT_MAKE_COLOR(CRT_FGCOLOR_NORMAL,CRT_BGCOLOR_NORMAL)
+
+typedef struct
+{
+ uint8_t chr;
+ uint8_t attr;
+ uint8_t color;