First commit

include/console.h

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+#include "types.h"
+
+void put_char(char c);
+char get_char();
+
+void put_string(char* s);
+

include/random.h

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+#include "types.h"
+
+uint8_t random();

include/types.h

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+#pragma once
+
+typedef signed   char    int8_t;
+typedef short    int     int16_t;
+
+typedef unsigned char    uint8_t;
+typedef unsigned short   uint16_t;