Diff for /gforth/engine/engine.c between versions 1.104 and 1.115

version 1.104, 2007/12/31 17:34:59 version 1.115, 2011/11/16 20:36:13
Line 1 Line 1
 /* Gforth virtual machine (aka inner interpreter)  /* Gforth virtual machine (aka inner interpreter)
   
   Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007 Free Software Foundation, Inc.    Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2010 Free Software Foundation, Inc.
   
   This file is part of Gforth.    This file is part of Gforth.
   
   Gforth is free software; you can redistribute it and/or    Gforth is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License    modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; either version 2    as published by the Free Software Foundation, either version 3
   of the License, or (at your option) any later version.    of the License, or (at your option) any later version.
   
   This program is distributed in the hope that it will be useful,    This program is distributed in the hope that it will be useful,
Line 15 Line 15
   GNU General Public License for more details.    GNU General Public License for more details.
   
   You should have received a copy of the GNU General Public License    You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software    along with this program; if not, see http://www.gnu.org/licenses/.
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.  
 */  */
   
 #if defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING)  #if defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING)
Line 45 Line 44
 #include <unistd.h>  #include <unistd.h>
 #include <pwd.h>  #include <pwd.h>
 #include <dirent.h>  #include <dirent.h>
   #ifdef HAVE_WCHAR_H
 #include <wchar.h>  #include <wchar.h>
   #endif
 #include <sys/resource.h>  #include <sys/resource.h>
 #ifdef HAVE_FNMATCH_H  #ifdef HAVE_FNMATCH_H
 #include <fnmatch.h>  #include <fnmatch.h>
Line 71 Line 72
 #include <callback.h>  #include <callback.h>
 #endif  #endif
   
 #ifdef HAS_LIBFFI  
 #include <ffi.h>  
 #endif  
   
 #ifndef SEEK_SET  #ifndef SEEK_SET
 /* should be defined in stdio.h, but some systems don't have it */  /* should be defined in stdio.h, but some systems don't have it */
 #define SEEK_SET 0  #define SEEK_SET 0
Line 233  extern int gforth_memcmp(const char * s1 Line 230  extern int gforth_memcmp(const char * s1
 #define asmcomment(string) asm("")  #define asmcomment(string) asm("")
 #endif  #endif
   
   #define DEPTHOFF 4
 #ifdef GFORTH_DEBUGGING  #ifdef GFORTH_DEBUGGING
 #if DEBUG  #if DEBUG
 #define NAME(string) { saved_ip=ip; asmcomment(string); fprintf(stderr,"%08lx depth=%3ld tos=%016lx: "string"\n",(Cell)ip,sp0+3-sp,sp[0]);}  #define NAME(string) { saved_ip=ip; asmcomment(string); fprintf(stderr,"%08lx depth=%3ld tos=%016lx: "string"\n",(Cell)ip,sp0+DEPTHOFF-sp,sp[0]);}
 #else /* !DEBUG */  #else /* !DEBUG */
 #define NAME(string) { saved_ip=ip; asm(""); }  #define NAME(string) { saved_ip=ip; asm(""); }
 /* the asm here is to avoid reordering of following stuff above the  /* the asm here is to avoid reordering of following stuff above the
Line 245  extern int gforth_memcmp(const char * s1 Line 243  extern int gforth_memcmp(const char * s1
    because the stack loads may already cause a stack underflow. */     because the stack loads may already cause a stack underflow. */
 #endif /* !DEBUG */  #endif /* !DEBUG */
 #elif DEBUG  #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); }  #       define  NAME(string)    {Cell __depth=sp0+DEPTHOFF-sp; int i; fprintf(stderr,"%08lx depth=%3ld: "string,(Cell)ip,sp0+DEPTHOFF-sp); for (i=__depth-1; i>0; i--) fprintf(stderr, " $%lx",sp[i]); fprintf(stderr, " $%lx\n",spTOS); }
 #else  #else
 #       define  NAME(string) asmcomment(string);  #       define  NAME(string) asmcomment(string);
 #endif  #endif
Line 313  void throw(int code) Line 311  void throw(int code)
 /* the asm(""); is there to get a stop compiled on Itanium */  /* the asm(""); is there to get a stop compiled on Itanium */
 #define LABEL2(name) K_##name: asm("");  #define LABEL2(name) K_##name: asm("");
   
 Label *gforth_engine(Xt *ip0, Cell *sp0, Cell *rp0, Float *fp0, Address lp0)  Label *gforth_engine(Xt *ip0, Cell *sp0, Cell *rp0, Float *fp0, Address lp0 sr_proto)
 /* executes code at ip, if ip!=NULL  /* executes code at ip, if ip!=NULL
    returns array of machine code labels (for use in a loader), if ip==NULL     returns array of machine code labels (for use in a loader), if ip==NULL
 */  */
 {  {
 #ifndef GFORTH_DEBUGGING  #if defined(GFORTH_DEBUGGING)
   #if defined(GLOBALS_NONRELOC)
     register saved_regs *saved_regs_p TOSREG = saved_regs_p0;
   #endif /* defined(GLOBALS_NONRELOC) */
   #else /* !defined(GFORTH_DEBUGGING) */
   register Cell *rp RPREG;    register Cell *rp RPREG;
 #endif  #endif /* !defined(GFORTH_DEBUGGING) */
 #ifndef NO_IP  #ifndef NO_IP
   register Xt *ip IPREG = ip0;    register Xt *ip IPREG = ip0;
 #endif  #endif
Line 341  Label *gforth_engine(Xt *ip0, Cell *sp0, Line 343  Label *gforth_engine(Xt *ip0, Cell *sp0,
   long long llrv;    long long llrv;
   void * prv;    void * prv;
 #endif  #endif
 #ifdef HAS_LIBFFI  
   extern void * gforth_ritem;  
   extern void ** gforth_clist;  
   extern void ffi_callback(ffi_cif * cif, void * resp, void ** args, Xt * ip);  
 #endif  
   register Address up UPREG = gforth_UP;    register Address up UPREG = gforth_UP;
   #if !defined(GFORTH_DEBUGGING)
   register Cell MAYBE_UNUSED spTOS TOSREG;    register Cell MAYBE_UNUSED spTOS TOSREG;
   register Cell MAYBE_UNUSED spb spbREG;    register Cell MAYBE_UNUSED spb spbREG;
   register Cell MAYBE_UNUSED spc spcREG;    register Cell MAYBE_UNUSED spc spcREG;
   register Cell MAYBE_UNUSED spd spdREG;    register Cell MAYBE_UNUSED spd spdREG;
   register Cell MAYBE_UNUSED spe speREG;    register Cell MAYBE_UNUSED spe speREG;
   register Cell MAYBE_UNUSED spf speREG;    register Cell MAYBE_UNUSED spf spfREG;
   register Cell MAYBE_UNUSED spg speREG;    register Cell MAYBE_UNUSED spg spgREG;
   register Cell MAYBE_UNUSED sph speREG;    register Cell MAYBE_UNUSED sph sphREG;
   IF_fpTOS(register Float fpTOS FTOSREG;)    IF_fpTOS(register Float fpTOS FTOSREG;)
   #endif /* !defined(GFORTH_DEBUGGING) */
 #if defined(DOUBLY_INDIRECT)  #if defined(DOUBLY_INDIRECT)
   static Label *symbols;    static Label *symbols;
   static void *routines[]= {    static void *routines[]= {
Line 408  Label *gforth_engine(Xt *ip0, Cell *sp0, Line 407  Label *gforth_engine(Xt *ip0, Cell *sp0,
   
     symbols = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+CODE_OFFSET)+code_offset);      symbols = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+CODE_OFFSET)+code_offset);
     xts = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+XT_OFFSET)+xt_offset);      xts = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+XT_OFFSET)+xt_offset);
     for (i=0; i<DOESJUMP+1; i++)      for (i=0; i<DOER_MAX+1; i++)
       xts[i] = symbols[i] = (Label)routines[i];        xts[i] = symbols[i] = (Label)routines[i];
     for (; routines[i]!=0; i++) {      for (; routines[i]!=0; i++) {
       if (i>=MAX_SYMBOLS) {        if (i>=MAX_SYMBOLS) {
Line 425  Label *gforth_engine(Xt *ip0, Cell *sp0, Line 424  Label *gforth_engine(Xt *ip0, Cell *sp0,
 #endif  #endif
   }    }
   
 #if !(defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING))  #ifdef USE_TOS
   sp += STACK_CACHE_DEFAULT-1;    sp += STACK_CACHE_DEFAULT-1;
   /* some of those registers are dead, but its simpler to initialize them all */  spTOS = sp[0];    /* some of those registers are dead, but its simpler to initialize them all */  spTOS = sp[0];
   spb = sp[-1];    spb = sp[-1];

Removed from v.1.104  
changed lines
  Added in v.1.115


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