A update

include/tty.h

@@ -0,0 +1,28 @@
+#ifndef _TTY_H
+#define _TTY_H
+
+#include <stddef.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+static const size_t VGA_WIDTH = 80;
+static const size_t VGA_HEIGHT = 25;
+static uint16_t* const VGA_MEMORY = (uint16_t*) 0xB8000;
+
+void terminal_initialize(void);
+void terminal_initializec(uint8_t color);
+
+void terminal_putentryat(unsigned char c, uint8_t color, size_t x, size_t y);
+void terminal_putchar(char c);
+void terminal_write(const char* data, size_t size);
+void terminal_writestring(const char* data);
+void terminal_debug_writestring(const char* data);
+
+void terminal_setcolor(uint8_t color);
+uint8_t terminal_getcolor(void);
+
+void terminal_clear(void);
+void terminal_clearl(size_t num_lines);
+void terminal_scroll(void);
+
+#endif