--- gforth/engine/engine.c	2006/03/11 23:05:09	1.90
+++ gforth/engine/engine.c	2007/03/17 19:14:57	1.98
@@ -1,6 +1,6 @@
 /* Gforth virtual machine (aka inner interpreter)
 
-  Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005 Free Software Foundation, Inc.
+  Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006 Free Software Foundation, Inc.
 
   This file is part of Gforth.
 
@@ -54,7 +54,7 @@
 #include "fnmatch.h"
 #endif
 #else
-#include "systypes.h"
+/* #include <systypes.h> */
 #endif
 
 #if defined(HAVE_LIBDL) || defined(HAVE_DLOPEN) /* what else? */
@@ -98,6 +98,20 @@ extern int gforth_memcmp(const char * s1
 
 #define NEWLINE	'\n'
 
+/* These two flags control whether divisions are checked by software.
+   The CHECK_DIVISION_SW is for those cases where the event is a
+   division by zero or overflow on the C level, and might be reported
+   by hardware; we might check forr that in autoconf and set the
+   switch appropriately, but currently don't.  The CHECK_DIVISION flag
+   is for the other cases. */
+#ifdef GFORTH_DEBUGGING
+#define CHECK_DIVISION_SW 1
+#define CHECK_DIVISION 1
+#else
+#define CHECK_DIVISION_SW 0
+#define CHECK_DIVISION 0
+#endif
+
 /* conversion on fetch */
 
 #define vm_Cell2f(_cell,_x)		((_x)=(Bool)(_cell))
@@ -211,9 +225,18 @@ extern int gforth_memcmp(const char * s1
 #endif
 #define SUPER_CONTINUE
 
+#ifdef ASMCOMMENT
+/* an individualized asm statement so that (hopefully) gcc's optimizer
+   does not do cross-jumping */
+#define asmcomment(string) asm(ASMCOMMENT string)
+#else
+/* we don't know how to do an asm comment, so we just do an empty asm */
+#define asmcomment(string) asm("")
+#endif
+
 #ifdef GFORTH_DEBUGGING
 #if DEBUG
-#define NAME(string) { saved_ip=ip; asm("# "string); fprintf(stderr,"%08lx depth=%3ld: "string"\n",(Cell)ip,sp0+3-sp);}
+#define NAME(string) { saved_ip=ip; asmcomment(string); fprintf(stderr,"%08lx depth=%3ld: "string"\n",(Cell)ip,sp0+3-sp);}
 #else /* !DEBUG */
 #define NAME(string) { saved_ip=ip; asm(""); }
 /* the asm here is to avoid reordering of following stuff above the
@@ -225,7 +248,7 @@ extern int gforth_memcmp(const char * s1
 #elif DEBUG
 #       define  NAME(string)    {Cell __depth=sp0+3-sp; int i; fprintf(stderr,"%08lx depth=%3ld: "string,(Cell)ip,sp0+3-sp); for (i=__depth-1; i>0; i--) fprintf(stderr, " $%lx",sp[i]); fprintf(stderr, " $%lx\n",spTOS); }
 #else
-#	define	NAME(string) asm("# "string);
+#	define	NAME(string) asmcomment(string);
 #endif
 
 #ifdef DEBUG
@@ -345,6 +368,11 @@ Label *gforth_engine(Xt *ip0, Cell *sp0,
 #include PRIM_LAB_I
 #undef INST_ADDR
   };
+#ifdef INCLUDE_IMAGE
+#define INST_ADDR(name) ((Label)&&I_##name)
+#include "image.i"
+#undef INST_ADDR
+#endif
 #ifdef CPU_DEP2
   CPU_DEP2
 #endif