-
-extern void SPEAK(vocab_t);
-extern void PSPEAK(vocab_t,int);
-extern void RSPEAK(vocab_t);
-extern void SETPRM(long,long,long);
-
-extern bool fGETIN(FILE *,token_t*,token_t*,token_t*,token_t*);
-#define GETIN(input,WORD1,WORD1X,WORD2,WORD2X) fGETIN(input,&WORD1,&WORD1X,&WORD2,&WORD2X)
-
-extern long YES(FILE *,vocab_t,vocab_t,vocab_t);
-extern long GETTXT(bool,bool,bool);
-extern token_t MAKEWD(long);
-
-extern void fPUTTXT(token_t,long*,long);
-#define PUTTXT(WORD,STATE,CASE) fPUTTXT(WORD,&STATE,CASE)
-
-extern void SHFTXT(long,long);
-extern void TYPE0(void);
-
-extern void fSAVWDS(long*,long*,long*,long*,long*,long*,long*);
-#define SAVWDS(W1,W2,W3,W4,W5,W6,W7) fSAVWDS(&W1,&W2,&W3,&W4,&W5,&W6,&W7)
-extern void fSAVARR(long*,long);
-#define SAVARR(ARR,N) fSAVARR(ARR,N)
-extern void fSAVWRD(long,long*);
-#define SAVWRD(OP,WORD) fSAVWRD(OP,&WORD)
-
-extern long VOCAB(long,long);
-extern void DSTROY(long);
-extern void JUGGLE(long);
-extern void MOVE(long,long);
-extern long PUT(long,long,long);
-extern void CARRY(long,long);
-extern void DROP(long,long);
-extern long ATDWRF(long);
-extern long SETBIT(long);
-extern bool TSTBIT(long,int);
-extern long RNDVOC(long,long);
-extern void BUG(long);
-extern void MAPLIN(FILE *);
-extern void TYPE(void);
-extern void MPINIT(void);
-
-extern void fSAVEIO(long,long,long*);
-#define SAVEIO(OP,IN,ARR) fSAVEIO(OP,IN,ARR)
-extern void DATIME(long*, long*);
-
-extern long MOD(long,long);
+extern char* xstrdup(const char* s);
+extern void* xmalloc(size_t size);
+extern void packed_to_token(long, char token[]);
+extern long token_to_packed(const char token[6]);
+extern void tokenize(char*, long tokens[4]);
+extern void vspeak(const char*, va_list);
+extern bool wordeq(token_t, token_t);
+extern bool wordempty(token_t);
+extern void wordclear(token_t *);
+extern void speak(const char*, ...);
+extern void pspeak(vocab_t, enum speaktype, int, ...);
+extern void rspeak(vocab_t, ...);
+extern void echo_input(FILE*, char*, char*);
+extern int word_count(char*);
+extern char* get_input(void);
+extern bool silent_yes(void);
+extern bool yes(const char*, const char*, const char*);
+extern int get_motion_vocab_id(const char*);
+extern int get_object_vocab_id(const char*);
+extern int get_action_vocab_id(const char*);
+extern int get_special_vocab_id(const char*);
+extern long get_vocab_id(const char*);
+extern void juggle(long);
+extern void move(long, long);
+extern long put(long, long, long);
+extern void carry(long, long);
+extern void drop(long, long);
+extern long atdwrf(long);
+extern long setbit(long);
+extern bool tstbit(long, int);
+extern void make_zzword(char*);
+extern void datime(long*, long*);
+
+enum termination {endgame, quitgame, scoregame};