#include <stdint.h>

void memcpy(void *to, void *from, uint32_t n);
void outb(uint16_t port, uint8_t value);
uint8_t inb(uint16_t port);
void outw(uint16_t port, uint16_t value);
uint16_t inw(uint16_t port);
void u32_dec(uint32_t n, uint8_t *b);
void u16_dec(uint16_t n, uint8_t *b);
void u8_dec(uint8_t n, uint8_t *b);
void u32_hex(uint32_t n, uint8_t *b);
void u16_hex(uint16_t n, uint8_t *b);
void u8_hex(uint8_t n, uint8_t *b);