#include <stdio.h>
extern void dec8 (unsigned char);
extern void dec16(unsigned int);
extern void dec32(unsigned long);
extern void hex8 (unsigned char);
extern void hex16(unsigned int);
extern void hex32(unsigned long);

int main(void) {
    puts("hex8:");
    hex8(0x00); puts("");
    hex8(0x5A); puts("");
    hex8(0xFF); puts("");
    puts("hex16:");
    hex16(0x0000); puts("");
    hex16(0xCAFE); puts("");
    hex16(0xFFFF); puts("");
    puts("hex32:");
    hex32(0x00000000UL); puts("");
    hex32(0xDEADBEEFUL); puts("");
    hex32(0xFFFFFFFFUL); puts("");
    puts("dec8:");
    dec8(0);   puts("");
    dec8(42);  puts("");
    dec8(255); puts("");
    puts("dec16:");
    dec16(0);     puts("");
    dec16(1234);  puts("");
    dec16(65535); puts("");
    puts("dec32:");
    dec32(0UL);          puts("");
    dec32(98765UL);      puts("");
    dec32(123456UL);     puts("");
    dec32(123456789UL);  puts("");
    dec32(4294967295UL); puts("");
    puts("done — any key");
    (void)getchar();
    return 0;
}