Diff for /gforth/engine/forth.h between versions 1.40 and 1.133

version 1.40, 2003/01/03 17:28:13 version 1.133, 2012/12/31 15:25:19
Line 1 Line 1
 /* common header file  /* common header file
   
   Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc.    Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012 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.  
 */  */
   
 #define _FILE_OFFSET_BITS 64  
 #define _LARGEFILE_SOURCE  
 #define _GNU_SOURCE  
   
 #include "config.h"  #include "config.h"
   #include "128bit.h"
 #include <stdio.h>  #include <stdio.h>
 #include <sys/time.h>  #include <sys/time.h>
 #include <unistd.h>  #include <unistd.h>
   #ifndef STANDALONE
   #if defined(HAVE_LIBLTDL)
   #include <ltdl.h>
   #endif
   #endif
   
   #if !defined(FORCE_LL) && !defined(BUGGY_LONG_LONG)
   #define BUGGY_LONG_LONG
   #endif
   
 #if defined(DOUBLY_INDIRECT)||defined(INDIRECT_THREADED)||defined(VM_PROFILING)  #if defined(DOUBLY_INDIRECT)||defined(INDIRECT_THREADED)||defined(VM_PROFILING)
 #define NO_DYNAMIC  #define NO_DYNAMIC
Line 38 Line 43
 #  define INDIRECT_THREADED  #  define INDIRECT_THREADED
 #endif  #endif
   
 #if defined(GFORTH_DEBUGGING)  #if defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING)
 #  undef USE_TOS  #  undef USE_TOS
 #  undef USE_FTOS  #  undef USE_FTOS
   #  undef USE_NO_TOS
   #  undef USE_NO_FTOS
 #  define USE_NO_TOS  #  define USE_NO_TOS
 #  define USE_NO_FTOS  #  define USE_NO_FTOS
   
   #define PRIM_I "prim.i"
   #define PRIM_LAB_I "prim_lab.i"
   #define PRIM_NAMES_I "prim_names.i"
   #define PRIM_SUPEREND_I "prim_superend.i"
   #define PRIM_NUM_I "prim_num.i"
   #define PRIM_GRP_I "prim_grp.i"
   #define COSTS_I "costs.i"
   #define SUPER2_I "super2.i"
   /* #define PROFILE_I "profile.i" */
   
   #else
   /* gforth-fast or gforth-native */
   #  undef USE_TOS
   #  undef USE_FTOS
   #  undef USE_NO_TOS
   #  undef USE_NO_FTOS
   #  define USE_TOS
   
   #define PRIM_I "prim-fast.i"
   #define PRIM_LAB_I "prim_lab-fast.i"
   #define PRIM_NAMES_I "prim_names-fast.i"
   #define PRIM_SUPEREND_I "prim_superend-fast.i"
   #define PRIM_NUM_I "prim_num-fast.i"
   #define PRIM_GRP_I "prim_grp-fast.i"
   #define COSTS_I "costs-fast.i"
   #define SUPER2_I "super2-fast.i"
   /* profile.c uses profile.i but does not define VM_PROFILING */
   /* #define PROFILE_I "profile-fast.i" */
   
 #endif  #endif
   
   
   
 #include <limits.h>  #include <limits.h>
   
 #if defined(NeXT)  #if defined(NeXT)
Line 59 Line 98
 #define DOUSER  3  #define DOUSER  3
 #define DODEFER 4  #define DODEFER 4
 #define DOFIELD 5  #define DOFIELD 5
 #define DODOES  6  #define DOVAL   6
 #define DOESJUMP        7  #define DODOES  7
   #define DOABICODE       8
 /* the size of the DOESJUMP, which resides between DOES> and the does-code */  #define DOSEMIABICODE   9
 #define DOES_HANDLER_SIZE       (2*sizeof(Cell))  #define DOER_MAX        9
   
 #include "machine.h"  #include "machine.h"
   
   /* C interface data types */
   
   typedef WYDE_TYPE Wyde;
   typedef TETRABYTE_TYPE Tetrabyte;
   typedef OCTABYTE_TYPE Octabyte;
   typedef unsigned WYDE_TYPE UWyde;
   typedef unsigned TETRABYTE_TYPE UTetrabyte;
   typedef unsigned OCTABYTE_TYPE UOctabyte;
   
 /* Forth data types */  /* Forth data types */
 /* Cell and UCell must be the same size as a pointer */  /* Cell and UCell must be the same size as a pointer */
 #define CELL_BITS       (sizeof(Cell) * CHAR_BIT)  #define CELL_BITS       (sizeof(Cell) * CHAR_BIT)
   #define CELL_MIN (((Cell)1)<<(sizeof(Cell)*CHAR_BIT-1))
   
   #define HALFCELL_BITS   (CELL_BITS/2)
   #define HALFCELL_MASK   ((~(UCell)0)>>HALFCELL_BITS)
   #define UH(x)           (((UCell)(x))>>HALFCELL_BITS)
   #define LH(x)           ((x)&HALFCELL_MASK)
   #define L2U(x)          (((UCell)(x))<<HALFCELL_BITS)
   #define HIGHBIT(x)      (((UCell)(x))>>(CELL_BITS-1))
   
 #define FLAG(b) (-(b))  #define FLAG(b) (-(b))
 #define FILEIO(error)   (FLAG(error) & -37)  #define FILEIO(error)   (FLAG(error) & -37)
 #define FILEEXIST(error)        (FLAG(error) & -38)  #define FILEEXIST(error)        (FLAG(error) & -38)
Line 77 Line 134
 #define F_TRUE (FLAG(0==0))  #define F_TRUE (FLAG(0==0))
 #define F_FALSE (FLAG(0!=0))  #define F_FALSE (FLAG(0!=0))
   
 #ifdef BUGGY_LONG_LONG  /* define this false if you want native division */
   #ifdef FORCE_CDIV
   #define FLOORED_DIV 0
   #else
   #define FLOORED_DIV ((1%-3)>0)
   #endif
   
   #if defined(BUGGY_LONG_LONG)
   
   #define BUGGY_LL_CMP    /* compares not possible */
   #define BUGGY_LL_MUL    /* multiplication not possible */
   #define BUGGY_LL_DIV    /* division not possible */
   #define BUGGY_LL_ADD    /* addition not possible */
   #define BUGGY_LL_SHIFT  /* shift not possible */
   #define BUGGY_LL_D2F    /* to float not possible */
   #define BUGGY_LL_F2D    /* from float not possible */
   #define BUGGY_LL_SIZE   /* long long "too short", so we use something else */
   
 typedef struct {  typedef struct {
   Cell hi;    Cell hi;
   UCell lo;    UCell lo;
Line 88  typedef struct { Line 162  typedef struct {
   UCell lo;    UCell lo;
 } UDCell;  } UDCell;
   
   #define DHI(x) (x).hi
   #define DLO(x) (x).lo
   #define DHI_IS(x,y) (x).hi=(y)
   #define DLO_IS(x,y) (x).lo=(y)
   
   #define UD2D(ud)        ({UDCell _ud=(ud); (DCell){_ud.hi,_ud.lo};})
   #define D2UD(d)         ({DCell _d1=(d); (UDCell){_d1.hi,_d1.lo};})
   
   /* shifts by less than CELL_BITS */
   #define DLSHIFT(d,u) ({DCell _d=(d); UCell _u=(u); \
                          ((_u==0) ? \
                           _d : \
                           (DCell){(_d.hi<<_u)|(_d.lo>>(CELL_BITS-_u)), \
                                    _d.lo<<_u});})
   
   #define UDLSHIFT(ud,u) D2UD(DLSHIFT(UD2D(ud),u))
   
 #if SMALL_OFF_T  #if SMALL_OFF_T
 #define OFF2UD(o) ({UDCell _ud; _ud.hi=0; _ud.lo=(Cell)(o); _ud;})  #define OFF2UD(o) ({UDCell _ud; _ud.hi=0; _ud.lo=(Cell)(o); _ud;})
 #define UD2OFF(ud) ((ud).lo)  #define UD2OFF(ud) ((ud).lo)
Line 97  typedef struct { Line 188  typedef struct {
 #endif /* !SMALL_OFF_T */  #endif /* !SMALL_OFF_T */
 #define DZERO           ((DCell){0,0})  #define DZERO           ((DCell){0,0})
   
 #else /* ! defined(BUGGY_LONG_LONG) */  #else /* !defined(BUGGY_LONG_LONG) */
   
 /* DCell and UDCell must be twice as large as Cell */  /* DCell and UDCell must be twice as large as Cell */
 typedef DOUBLE_CELL_TYPE DCell;  typedef DOUBLE_CELL_TYPE DCell;
 typedef unsigned DOUBLE_CELL_TYPE UDCell;  typedef DOUBLE_UCELL_TYPE UDCell;
   
   #define DHI(x) ({ Double_Store _d; _d.d=(x); _d.cells.high; })
   #define DLO(x) ({ Double_Store _d; _d.d=(x); _d.cells.low;  })
   
   /* beware with the assignment: x is referenced twice! */
   #define DHI_IS(x,y) ({ Double_Store _d; _d.d=(x); _d.cells.high=(y); (x)=_d.d; })
   #define DLO_IS(x,y) ({ Double_Store _d; _d.d=(x); _d.cells.low =(y); (x)=_d.d; })
   
   #define UD2D(ud)        ((DCell)(ud))
   #define D2UD(d)         ((UDCell)(d))
 #define OFF2UD(o)       ((UDCell)(o))  #define OFF2UD(o)       ((UDCell)(o))
 #define UD2OFF(ud)      ((off_t)(ud))  #define UD2OFF(ud)      ((off_t)(ud))
 #define DZERO           ((DCell)0)  #define DZERO           ((DCell)0)
   /* shifts by less than CELL_BITS */
   #define DLSHIFT(d,u)  ((d)<<(u))
   #define UDLSHIFT(d,u)  ((d)<<(u))
   
 #endif /* ! defined(BUGGY_LONG_LONG) */  #endif /* !defined(BUGGY_LONG_LONG) */
   
 typedef union {  typedef union {
   struct {    struct {
Line 161  typedef Label *Xt; Line 264  typedef Label *Xt;
   
   
   
 #define DOES_CODE(cfa)  ({Xt _cfa=(Xt)(cfa); \  
                           (Xt *)(_cfa[0]==DOES_CA ? _cfa[1] : NULL);})  
 #define DOES_CODE1(cfa) ((Xt *)(cfa[1]))  #define DOES_CODE1(cfa) ((Xt *)(cfa[1]))
 /* MAKE_CF creates an appropriate code field at the cfa;  /* MAKE_CF creates an appropriate code field at the cfa;
    ca is the code address */     ca is the code address */
 #define MAKE_CF(cfa,ca) ((*(Label *)(cfa)) = ((Label)ca))  #define MAKE_CF(cfa,ca) ((*(Label *)(cfa)) = ((Label)ca))
 /* make a code field for a defining-word-defined word */  /* make a code field for a defining-word-defined word */
 #define MAKE_DOES_CF(cfa,does_code)  ({MAKE_CF(cfa,DOES_CA);    \  
                                        ((Cell *)cfa)[1] = (Cell)(does_code);})  
 /* the does handler resides between DOES> and the following Forth code */  
 /* not needed in indirect threaded code */  
 #if defined(DOUBLY_INDIRECT)  
 #define MAKE_DOES_HANDLER(addr) MAKE_CF(addr, ((Label)&symbols[DOESJUMP]))  
 #else /* !defined(DOUBLY_INDIRECT) */  
 #define MAKE_DOES_HANDLER(addr) 0  
 #endif /* !defined(DOUBLY_INDIRECT) */  
   
 #ifdef GFORTH_DEBUGGING  
 #define NAME(string) { saved_ip=ip; asm(""); }  
 /* the asm here is to avoid reordering of following stuff above the  
    assignment; this is an old-style asm (no operands), and therefore  
    is treated like "asm volatile ..."; i.e., it prevents most  
    reorderings across itself.  We want the assignment above first,  
    because the stack loads may already cause a stack underflow. */  
 #elif DEBUG  
 #       define  NAME(string)    fprintf(stderr,"%08lx: "string"\n",(Cell)ip);  
 #else  
 #       define  NAME(string)  
 #endif  
   
 #define CF(const)       (-const-2)  #define CF(const)       (-const-2)
   
Line 198  typedef Label *Xt; Line 277  typedef Label *Xt;
 #ifndef FLUSH_ICACHE  #ifndef FLUSH_ICACHE
 #warning flush-icache probably will not work (see manual)  #warning flush-icache probably will not work (see manual)
 #       define FLUSH_ICACHE(addr,size)  #       define FLUSH_ICACHE(addr,size)
   #warning no FLUSH_ICACHE, turning off dynamic native code by default
   #undef NO_DYNAMIC_DEFAULT
   #define NO_DYNAMIC_DEFAULT 1
 #endif  #endif
   
 #ifdef USE_TOS  #ifndef CHECK_PRIM
 #define IF_spTOS(x) x  #define CHECK_PRIM(start,len) 0
   #endif
   
   #if defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING)
   #define STACK_CACHE_DEFAULT 0
 #else  #else
 #define IF_spTOS(x)  #define STACK_CACHE_DEFAULT STACK_CACHE_DEFAULT_FAST
 #define spTOS (sp[0])  
 #endif  #endif
   
 #ifdef USE_FTOS  #ifdef USE_FTOS
Line 218  typedef Label *Xt; Line 303  typedef Label *Xt;
 #define rpTOS (rp[0])  #define rpTOS (rp[0])
   
 typedef struct {  typedef struct {
     Cell next_task;
     Cell prev_task;
     Cell save_task;
     Cell* sp0;
     Cell* rp0;
     Float* fp0;
     Address lp0;
     Xt *throw_entry;
   } user_area;
   
   typedef struct {
   Address base;         /* base address of image (0 if relocatable) */    Address base;         /* base address of image (0 if relocatable) */
   UCell checksum;       /* checksum of ca's to protect against some    UCell checksum;       /* checksum of ca's to protect against some
                            incompatible binary/executable combinations                             incompatible binary/executable combinations
Line 230  typedef struct { Line 326  typedef struct {
   UCell locals_stack_size;    UCell locals_stack_size;
   Xt *boot_entry;       /* initial ip for booting (in BOOT) */    Xt *boot_entry;       /* initial ip for booting (in BOOT) */
   Xt *throw_entry;      /* ip after signal (in THROW) */    Xt *throw_entry;      /* ip after signal (in THROW) */
   Cell unused1;         /* possibly tib stack size */    Xt *quit_entry;
     Xt *execute_entry;
     Xt *find_entry;
   Label *xt_base;         /* base of DOUBLE_INDIRECT xts[], for comp-i.fs */    Label *xt_base;         /* base of DOUBLE_INDIRECT xts[], for comp-i.fs */
   Address data_stack_base; /* this and the following fields are initialized by the loader */  
   Address fp_stack_base;  
   Address return_stack_base;  
   Address locals_stack_base;  
 } ImageHeader;  } ImageHeader;
 /* the image-header is created in main.fs */  /* the image-header is created in main.fs */
   
 Label *engine(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp);  #ifdef HAS_F83HEADERSTRING
 Address my_alloc(Cell size);  struct F83Name {
 char *cstr(Char *from, UCell size, int clear);    struct F83Name *next;  /* the link field for old hands */
 char *tilde_cstr(Char *from, UCell size, int clear);    char          countetc;
     char          name[0];
   };
   
   #define F83NAME_COUNT(np)       ((np)->countetc & 0x1f)
   #endif
   struct Longname {
     struct Longname *next;  /* the link field for old hands */
     Cell          countetc;
     char          name[0];
   };
   
   #define LONGNAME_COUNT(np)      ((np)->countetc & (((~((UCell)0))<<4)>>4))
   
   struct Cellpair {
     Cell n1;
     Cell n2;
   };
   
   struct Cellquad {
     Cell n1;
     Cell n2;
     Cell n3;
     Cell n4;
   };
   
   #define IOR(flag)       ((flag)? -512-errno : 0)
   
   #ifdef GFORTH_DEBUGGING
   #if defined(GLOBALS_NONRELOC)
   /* if globals cause non-relocatable primitives, keep saved_ip and rp
      in a structure and access it through locals */
   typedef struct saved_regs {
     Xt *sr_saved_ip;
     Cell *sr_rp;
   } saved_regs;
   extern saved_regs saved_regs_v;
   extern PER_THREAD saved_regs *saved_regs_p;
   #define saved_ip (saved_regs_p->sr_saved_ip)
   #define rp       (saved_regs_p->sr_rp)
   /* for use in gforth_engine header */
   #error sr_proto not passed in fflib.fs callbacks (solution: disable GLOBALS_NONRELOC)
   #define sr_proto , struct saved_regs *saved_regs_p0
   #define sr_call  , saved_regs_p
   #else /* !defined(GLOBALS_NONRELOC) */
   extern PER_THREAD Xt *saved_ip;
   extern PER_THREAD Cell *rp;
   #define sr_proto
   #define sr_call
   #endif /* !defined(GLOBALS_NONRELOC) */
   #else /* !defined(GFORTH_DEBUGGING) */
   #define sr_proto
   #define sr_call
   #endif /* !defined(GFORTH_DEBUGGING) */
   
   Label *gforth_engine(Xt *ip sr_proto);
   Label *gforth_engine2(Xt *ip sr_proto);
   Label *gforth_engine3(Xt *ip sr_proto);
   
   
   int gforth_main(int argc, char **argv, char **env);
   void gforth_args(int argc, char ** argv, char ** path, char ** imagename);
   Address gforth_loader(char* imagename, char* path);
   user_area* gforth_stacks(Cell dsize, Cell rsize, Cell fsize, Cell lsize);
   void gforth_free_stacks(user_area* t);
   void gforth_free();
   Cell gforth_go(Xt* ip0);
   int gforth_boot(int argc, char** argv, char* path);
   int gforth_start(int argc, char ** argv);
   int gforth_quit();
   Xt gforth_find(Char * name);
   int gforth_execute(Xt xt);
   void gforth_cleanup();
   void gforth_printmetrics();
   #if defined(DOUBLY_INDIRECT)
   int gforth_make_image(int debugflag);
   #endif
   
   /* for ABI-CODE and ;ABI-CODE */
   typedef Cell *abifunc(Cell *sp, Float **fpp);
   typedef Cell *semiabifunc(Cell *sp, Float **fpp, Address body);
   
   /* engine/prim support routines */
   Address gforth_alloc(Cell size);
   char *cstr(Char *from, UCell size);
   char *tilde_cstr(Char *from, UCell size);
   Cell opencreate_file(char *s, Cell wfam, int flags, Cell *wiorp);
 DCell timeval2us(struct timeval *tvp);  DCell timeval2us(struct timeval *tvp);
   DCell timespec2ns(struct timespec *tvp);
   void cmove(Char *c_from, Char *c_to, UCell u);
   void cmove_up(Char *c_from, Char *c_to, UCell u);
   Cell compare(Char *c_addr1, UCell u1, Char *c_addr2, UCell u2);
   struct Longname *listlfind(Char *c_addr, UCell u, struct Longname *longname1);
   struct Longname *hashlfind(Char *c_addr, UCell u, Cell *a_addr);
   struct Longname *tablelfind(Char *c_addr, UCell u, Cell *a_addr);
   UCell hashkey1(Char *c_addr, UCell u, UCell ubits);
   struct Cellpair parse_white(Char *c_addr1, UCell u1);
   Cell rename_file(Char *c_addr1, UCell u1, Char *c_addr2, UCell u2);
   struct Cellquad read_line(Char *c_addr, UCell u1, FILE *wfileid);
   struct Cellpair file_status(Char *c_addr, UCell u);
   Cell to_float(Char *c_addr, UCell u, Float *r_p, Char dot);
   Float v_star(Float *f_addr1, Cell nstride1, Float *f_addr2, Cell nstride2, UCell ucount);
   void faxpy(Float ra, Float *f_x, Cell nstridex, Float *f_y, Cell nstridey, UCell ucount);
   UCell lshift(UCell u1, UCell n);
   UCell rshift(UCell u1, UCell n);
   int gforth_system(Char *c_addr, UCell u);
   void gforth_ms(UCell u);
   UCell gforth_dlopen(Char *c_addr, UCell u);
   Cell capscompare(Char *c_addr1, UCell u1, Char *c_addr2, UCell u2);
   int gf_ungetc(int c, FILE *stream);
   void gf_regetc(FILE *stream);
   int gf_ungottenc(FILE *stream);
   
   /* signal handler stuff */
   void install_signal_handlers(void);
   void throw(int code);
   /* throw codes */
   #define BALL_DIVZERO     -10
   #define BALL_RESULTRANGE -11
   
   typedef void Sigfunc(int);
   Sigfunc *bsd_signal(int signo, Sigfunc *func);
   
 /* dblsub routines */  /* dblsub routines */
 DCell dnegate(DCell d1);  DCell dnegate(DCell d1);
Line 255  DCell fmdiv (DCell num, Cell denom); Line 469  DCell fmdiv (DCell num, Cell denom);
   
 Cell memcasecmp(const Char *s1, const Char *s2, Cell n);  Cell memcasecmp(const Char *s1, const Char *s2, Cell n);
   
 /* peephole routines */  
   
 Xt *primtable(Label symbols[], Cell size);  
 Cell prepare_peephole_table(Xt xts[]);  
 Xt peephole_opt(Xt xt1, Xt xt2, Cell peeptable);  
 void vm_print_profile(FILE *file);  void vm_print_profile(FILE *file);
 void vm_count_block(Xt *ip);  void vm_count_block(Xt *ip);
   
 /* dynamic superinstruction stuff */  /* dynamic superinstruction stuff */
 Label compile_prim(Label prim);  
 void compile_prim1(Cell *start);  void compile_prim1(Cell *start);
 void finish_code(void);  void finish_code(void);
 int forget_dyncode(Address code);  int forget_dyncode(Address code);
Line 272  Label decompile_code(Label prim); Line 480  Label decompile_code(Label prim);
   
 extern int offset_image;  extern int offset_image;
 extern int die_on_signal;  extern int die_on_signal;
   extern int ignore_async_signals;
 extern UCell pagesize;  extern UCell pagesize;
 extern ImageHeader *gforth_header;  extern ImageHeader *gforth_header;
 extern Label *vm_prims;  extern Label *vm_prims;
Line 284  extern int debug; Line 493  extern int debug;
 # define debug 0  # define debug 0
 #endif  #endif
   
 extern Cell *SP;  extern PER_THREAD Cell *gforth_SP;
 extern Float *FP;  extern PER_THREAD Cell *gforth_RP;
 extern Address UP;  extern PER_THREAD Address gforth_LP;
   extern PER_THREAD Float *gforth_FP;
   extern PER_THREAD user_area* gforth_UP;
   
 #ifdef GFORTH_DEBUGGING  extern void * gforth_pointers(Cell n);
 extern Xt *saved_ip;  
 extern Cell *rp;  #ifdef HAS_FFCALL
   extern void gforth_callback(Xt* fcall, void * alist);
 #endif  #endif
   
 #ifdef NO_IP  #ifdef NO_IP
Line 333  extern char *strsignal(int sig); Line 545  extern char *strsignal(int sig);
 extern unsigned long int strtoul(const char *nptr, char **endptr, int base);  extern unsigned long int strtoul(const char *nptr, char **endptr, int base);
 #endif  #endif
   
   
 #define GROUP(x, n)  #define GROUP(x, n)
   #define GROUPADD(n)
   
   #ifdef HAVE_ENDIAN_H
   #include <endian.h>
   #else
   #define BSWAP16(x) ((((x) >> 8) & 0xff | (((x) & 0xff) << 8)))
   #define BSWAP32(x) ((BSWAP16((x) >> 16) | (BSWAP16(x) << 16)))
   #define BSWAP64(x) ((BSWAP32((x) >> 32) | (BSWAP32(x) << 32)))
   #ifdef WORDS_BIGENDIAN
   #define htobe16(x) (x)
   #define htobe32(x) (x)
   #define htobe64(x) (x)
   #define be16toh(x) (x)
   #define be32toh(x) (x)
   #define be64toh(x) (x)
   #define htole16(x) BSWAP16(x)
   #define htole32(x) BSWAP32(x)
   #define htole64(x) BSWAP64(x)
   #define le16toh(x) BSWAP16(x)
   #define le32toh(x) BSWAP32(x)
   #define le64toh(x) BSWAP64(x)
   #else
   #define htobe16(x) BSWAP16(x)
   #define htobe32(x) BSWAP32(x)
   #define htobe64(x) BSWAP64(x)
   #define be16toh(x) BSWAP16(x)
   #define be32toh(x) BSWAP32(x)
   #define be64toh(x) BSWAP64(x)
   #define htole16(x) (x)
   #define htole32(x) (x)
   #define htole64(x) (x)
   #define le16toh(x) (x)
   #define le32toh(x) (x)
   #define le64toh(x) (x)
   #endif
   #endif

Removed from v.1.40  
changed lines
  Added in v.1.133


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