+extern long score(enum termination);
+extern void terminate(enum termination) __attribute__((noreturn));
+extern int suspend(FILE *);
+extern int resume(FILE *);
+extern int restore(FILE *);
+
+/*
+ * MOD(N,M) = Arithmetic modulus
+ * AT(OBJ) = true if on either side of two-placed object
+ * CNDBIT(L,N) = true if COND(L) has bit n set (bit 0 is units bit)
+ * DARK(LOC) = true if location "LOC" is dark
+ * FORCED(LOC) = true if LOC moves without asking for input (COND=2)
+ * FOREST(LOC) = true if LOC is part of the forest
+ * GSTONE(OBJ) = true if OBJ is a gemstone
+ * HERE(OBJ) = true if the OBJ is at "LOC" (or is being carried)
+ * LIQUID() = object number of liquid in bottle
+ * LIQLOC(LOC) = object number of liquid (if any) at LOC
+ * PCT(N) = true N% of the time (N integer from 0 to 100)
+ * TOTING(OBJ) = true if the OBJ is being carried */
+
+#define DESTROY(N) MOVE(N, NOWHERE)
+#define MOD(N,M) ((N) % (M))
+#define TOTING(OBJ) (game.place[OBJ] == CARRIED)
+#define AT(OBJ) (game.place[OBJ] == game.loc || game.fixed[OBJ] == game.loc)
+#define HERE(OBJ) (AT(OBJ) || TOTING(OBJ))
+#define LIQ2(PBOTL) ((1-(PBOTL))*WATER+((PBOTL)/2)*(WATER+OIL))
+#define LIQUID() (LIQ2(game.prop[BOTTLE]<0 ? -1-game.prop[BOTTLE] : game.prop[BOTTLE]))
+#define LIQLOC(LOC) (LIQ2((MOD(COND[LOC]/2*2,8)-5)*MOD(COND[LOC]/4,2)+1))
+#define CNDBIT(L,N) (TSTBIT(COND[L],N))
+#define FORCED(LOC) (COND[LOC] == 2)
+#define DARK(DUMMY) ((!CNDBIT(game.loc,LIGHT)) && (game.prop[LAMP] == 0 || !HERE(LAMP)))
+#define PCT(N) (randrange(100) < (N))
+#define GSTONE(OBJ) ((OBJ) == EMRALD || (OBJ) == RUBY || (OBJ) == AMBER || (OBJ) == SAPPH)
+#define FOREST(LOC) ((LOC) >= LOC_FOREST1 && (LOC) <= LOC_FOREST22)
+#define VOCWRD(LETTRS,SECT) (VOCAB(MAKEWD(LETTRS),SECT))
+#define SPECIAL(LOC) ((LOC) > SPECIALBASE)
+
+/* The following two functions were added to fix a bug (game.clock1 decremented
+ * while in forest). They should probably be replaced by using another
+ * "cond" bit. For now, however, a quick fix... OUTSID(LOC) is true if
+ * LOC is outside, INDEEP(LOC) is true if LOC is "deep" in the cave (hall
+ * of mists or deeper). Note special kludges for "Foof!" locs. */
+
+#define OUTSID(LOC) ((LOC) <= LOC_GRATE || FOREST(LOC) || (LOC) == PLAC[SAPPH] || (LOC) == LOC_FOOF2 || (LOC) == LOC_FOOF4)
+#define INDEEP(LOC) ((LOC) >= LOC_MISTHALL && !OUTSID(LOC) && (LOC) != LOC_FOOF1)