#define CSEGSIZE	512-2*sizeof(int)

typedef struct Code {
	struct Code *prev;
	char *firstFree;
	char segment[CSEGSIZE];
} Code;

Code	*CodeStoreChar(Code *, char);
Code	*CodeGetBlock(void);
void	CodeFreeBlock(Code *);
Code	*CodeStoreString(Code *, char *);
Code	*CodeAppend(Code *, Code *);
void	CodeWrite(FILE *, Code *);
Code	*CodeMarkLine(Code *, int );