Page 387 - Programming Microcontrollers in C

372 Chapter 7 Advanced Topics

unsigned next;
}Entry;

#define ALEN 30
#define NLEN 16
#define DLEN 35
#define EEPROMLEN 768
#define DATAPROM EEPROMLEN-DLEN*sizeof( Entry)
#define END 0xff

typedef struct {
Entry header[DLEN];
unsigned data[DATAPROM];
}Epro;

#define NEXT_OPEN epro->data[0]
#define START_OF_LIST epro->data[1]
#define LIST_ENTRIES epro->data[2]

void saveit(char *,char *,Epro *);
void printout(Epro *);
void printafter(Epro *);
void reset(Epro *);
int encode(char *,unsigned *,int);
int decode(unsigned *,char *);
void get(char *,int);
int numbdup(char * const, unsigned *, int);
void putbcd(char *,char *);
#ifndef DOS
void inituart(void);
void putchar(int);
int getchar(void);
void puts(char *);
#endif

#endif
Listing 7-11: Phone Book Header File