syscalls: start implementing some basic syscalls

include/stdio.h

@@ -1,11 +1,15 @@
 #ifndef STDIO_H
 #define STDIO_H
 
+#include <stddef.h>
+#include <stdbool.h>
+
 //TODO: these should be contained in newlib i guess
 //but until i implement it let it be here yo
 #define EOF (-1)
 #define INT_MAX 2147483647
 
+bool print(const char* data, size_t length);
 int printf(const char* __restrict, ...);
 int putchar(int);
 int puts(const char*);