Annotation of gforth/engine/forth.h, revision 1.84

1.1       anton       1: /* common header file
                      2: 
1.79      anton       3:   Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006 Free Software Foundation, Inc.
1.1       anton       4: 
                      5:   This file is part of Gforth.
                      6: 
                      7:   Gforth is free software; you can redistribute it and/or
                      8:   modify it under the terms of the GNU General Public License
                      9:   as published by the Free Software Foundation; either version 2
                     10:   of the License, or (at your option) any later version.
                     11: 
                     12:   This program is distributed in the hope that it will be useful,
                     13:   but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14:   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     15:   GNU General Public License for more details.
                     16: 
                     17:   You should have received a copy of the GNU General Public License
                     18:   along with this program; if not, write to the Free Software
1.13      anton      19:   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
1.1       anton      20: */
                     21: 
                     22: #include "config.h"
1.18      anton      23: #include <stdio.h>
1.35      anton      24: #include <sys/time.h>
                     25: #include <unistd.h>
1.1       anton      26: 
1.32      anton      27: #if defined(DOUBLY_INDIRECT)||defined(INDIRECT_THREADED)||defined(VM_PROFILING)
                     28: #define NO_DYNAMIC
                     29: #endif
                     30: 
1.1       anton      31: #if defined(DOUBLY_INDIRECT)
                     32: #  undef DIRECT_THREADED
                     33: #  undef INDIRECT_THREADED
                     34: #  define INDIRECT_THREADED
                     35: #endif
                     36: 
1.57      anton      37: #if defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING)
1.23      anton      38: #  undef USE_TOS
                     39: #  undef USE_FTOS
1.56      anton      40: #  undef USE_NO_TOS
                     41: #  undef USE_NO_FTOS
1.23      anton      42: #  define USE_NO_TOS
                     43: #  define USE_NO_FTOS
1.57      anton      44: 
                     45: #define PRIM_I "prim.i"
                     46: #define PRIM_LAB_I "prim_lab.i"
                     47: #define PRIM_NAMES_I "prim_names.i"
                     48: #define PRIM_SUPEREND_I "prim_superend.i"
                     49: #define PRIM_NUM_I "prim_num.i"
                     50: #define PRIM_GRP_I "prim_grp.i"
                     51: #define COSTS_I "costs.i"
                     52: #define SUPER2_I "super2.i"
1.58      anton      53: /* #define PROFILE_I "profile.i" */
1.57      anton      54: 
                     55: #else
                     56: /* gforth-fast or gforth-native */
1.59      anton      57: #  undef USE_TOS
                     58: #  undef USE_FTOS
                     59: #  undef USE_NO_TOS
                     60: #  undef USE_NO_FTOS
                     61: #  define USE_TOS
1.57      anton      62: 
                     63: #define PRIM_I "prim-fast.i"
                     64: #define PRIM_LAB_I "prim_lab-fast.i"
                     65: #define PRIM_NAMES_I "prim_names-fast.i"
                     66: #define PRIM_SUPEREND_I "prim_superend-fast.i"
                     67: #define PRIM_NUM_I "prim_num-fast.i"
                     68: #define PRIM_GRP_I "prim_grp-fast.i"
                     69: #define COSTS_I "costs-fast.i"
                     70: #define SUPER2_I "super2-fast.i"
1.58      anton      71: /* profile.c uses profile.i but does not define VM_PROFILING */
                     72: /* #define PROFILE_I "profile-fast.i" */
1.57      anton      73: 
1.23      anton      74: #endif
1.57      anton      75: 
                     76: 
1.23      anton      77: 
1.1       anton      78: #include <limits.h>
                     79: 
                     80: #if defined(NeXT)
                     81: #  include <libc.h>
                     82: #endif /* NeXT */
                     83: 
                     84: /* symbol indexed constants */
                     85: 
                     86: #define DOCOL  0
                     87: #define DOCON  1
                     88: #define DOVAR  2
                     89: #define DOUSER 3
                     90: #define DODEFER        4
                     91: #define DOFIELD        5
                     92: #define DODOES 6
                     93: #define DOESJUMP       7
                     94: 
                     95: /* the size of the DOESJUMP, which resides between DOES> and the does-code */
                     96: #define DOES_HANDLER_SIZE      (2*sizeof(Cell))
                     97: 
1.6       jwilke     98: #include "machine.h"
1.1       anton      99: 
1.68      pazsan    100: /* C interface data types */
                    101: 
                    102: typedef WYDE_TYPE Wyde;
                    103: typedef TETRABYTE_TYPE Tetrabyte;
                    104: typedef unsigned WYDE_TYPE UWyde;
                    105: typedef unsigned TETRABYTE_TYPE UTetrabyte;
                    106: 
1.1       anton     107: /* Forth data types */
                    108: /* Cell and UCell must be the same size as a pointer */
                    109: #define CELL_BITS      (sizeof(Cell) * CHAR_BIT)
1.77      anton     110: #define CELL_MIN (((Cell)1)<<(sizeof(Cell)*CHAR_BIT-1))
1.78      anton     111: 
                    112: #define HALFCELL_BITS  (CELL_BITS/2)
                    113: #define HALFCELL_MASK   ((~(UCell)0)>>HALFCELL_BITS)
                    114: #define UH(x)          (((UCell)(x))>>HALFCELL_BITS)
                    115: #define LH(x)          ((x)&HALFCELL_MASK)
                    116: #define L2U(x)         (((UCell)(x))<<HALFCELL_BITS)
                    117: #define HIGHBIT(x)     (((UCell)(x))>>(CELL_BITS-1))
                    118: 
1.1       anton     119: #define FLAG(b) (-(b))
                    120: #define FILEIO(error)  (FLAG(error) & -37)
                    121: #define FILEEXIST(error)       (FLAG(error) & -38)
                    122: 
                    123: #define F_TRUE (FLAG(0==0))
                    124: #define F_FALSE (FLAG(0!=0))
                    125: 
1.65      pazsan    126: /* define this false if you want native division */
1.66      pazsan    127: #ifdef FORCE_CDIV
                    128: #define FLOORED_DIV 0
                    129: #else
1.65      pazsan    130: #define FLOORED_DIV ((1%-3)>0)
1.66      pazsan    131: #endif
1.65      pazsan    132: 
1.1       anton     133: #ifdef BUGGY_LONG_LONG
1.64      pazsan    134: 
                    135: #define BUGGY_LL_CMP    /* compares not possible */
                    136: #define BUGGY_LL_MUL    /* multiplication not possible */
                    137: #define BUGGY_LL_DIV    /* division not possible */
                    138: #define BUGGY_LL_ADD    /* addition not possible */
                    139: #define BUGGY_LL_SHIFT  /* shift not possible */
                    140: #define BUGGY_LL_D2F    /* to float not possible */
                    141: #define BUGGY_LL_F2D    /* from float not possible */
                    142: #define BUGGY_LL_SIZE   /* long long "too short", so we use something else */
                    143: 
1.1       anton     144: typedef struct {
                    145:   Cell hi;
                    146:   UCell lo;
                    147: } DCell;
                    148: 
                    149: typedef struct {
                    150:   UCell hi;
                    151:   UCell lo;
                    152: } UDCell;
                    153: 
1.64      pazsan    154: #define DHI(x) (x).hi
                    155: #define DLO(x) (x).lo
                    156: #define DHI_IS(x,y) (x).hi=(y)
                    157: #define DLO_IS(x,y) (x).lo=(y)
                    158: 
1.78      anton     159: #define UD2D(ud)       ({UDCell _ud=(ud); (DCell){_ud.hi,_ud.lo};})
1.80      anton     160: #define D2UD(d)                ({DCell _d1=(d); (UDCell){_d1.hi,_d1.lo};})
                    161: 
                    162: /* shifts by less than CELL_BITS */
                    163: #define DLSHIFT(d,u)  ({DCell _d=(d); UCell _u=(u); \
                    164:                        (DCell){(_d.hi<<_u)|(_d.lo>>(CELL_BITS-_u)),_d.lo<<_u};})
                    165: #define UDLSHIFT(ud,u) D2UD(DLSHIFT(UD2D(ud),u))
1.78      anton     166: 
1.39      anton     167: #if SMALL_OFF_T
                    168: #define OFF2UD(o) ({UDCell _ud; _ud.hi=0; _ud.lo=(Cell)(o); _ud;})
                    169: #define UD2OFF(ud) ((ud).lo)
                    170: #else /* !SMALL_OFF_T */
                    171: #define OFF2UD(o) ({UDCell _ud; off_t _o=(o); _ud.hi=_o>>CELL_BITS; _ud.lo=(Cell)_o; _ud;})
1.36      anton     172: #define UD2OFF(ud) ({UDCell _ud=(ud); (((off_t)_ud.hi)<<CELL_BITS)+_ud.lo;})
1.39      anton     173: #endif /* !SMALL_OFF_T */
1.1       anton     174: #define DZERO          ((DCell){0,0})
                    175: 
                    176: #else /* ! defined(BUGGY_LONG_LONG) */
                    177: 
                    178: /* DCell and UDCell must be twice as large as Cell */
                    179: typedef DOUBLE_CELL_TYPE DCell;
1.63      pazsan    180: typedef DOUBLE_UCELL_TYPE UDCell;
1.1       anton     181: 
1.36      anton     182: #define OFF2UD(o)      ((UDCell)(o))
                    183: #define UD2OFF(ud)     ((off_t)(ud))
1.16      anton     184: #define DZERO          ((DCell)0)
1.80      anton     185: /* shifts by less than CELL_BITS */
                    186: #define DLSHIFT(d,u)  ((d)<<(u))
                    187: #define UDLSHIFT(d,u)  ((d)<<(u))
1.16      anton     188: 
                    189: #endif /* ! defined(BUGGY_LONG_LONG) */
                    190: 
1.1       anton     191: typedef union {
                    192:   struct {
1.16      anton     193: #if defined(WORDS_BIGENDIAN)||defined(BUGGY_LONG_LONG)
1.1       anton     194:     Cell high;
                    195:     UCell low;
                    196: #else
                    197:     UCell low;
                    198:     Cell high;
1.20      crook     199: #endif
1.1       anton     200:   } cells;
1.16      anton     201:   DCell d;
                    202:   UDCell ud;
1.1       anton     203: } Double_Store;
1.64      pazsan    204: 
                    205: #ifndef BUGGY_LONG_LONG
                    206: #define DHI(x) ({ Double_Store _d; _d.d=(x); _d.cells.high; })
                    207: #define DLO(x) ({ Double_Store _d; _d.d=(x); _d.cells.low;  })
                    208: 
                    209: /* beware with the assignment: x is referenced twice! */
1.78      anton     210: #define DHI_IS(x,y) ({ Double_Store _d; _d.d=(x); _d.cells.high=(y); (x)=_d.d; })
                    211: #define DLO_IS(x,y) ({ Double_Store _d; _d.d=(x); _d.cells.low =(y); (x)=_d.d; })
                    212: 
                    213: #define UD2D(ud)       ((DCell)(ud))
                    214: #define D2UD(d)                ((UDCell)(d))
1.64      pazsan    215: #endif
1.1       anton     216: 
1.16      anton     217: #define FETCH_DCELL_T(d_,lo,hi,t_)     ({ \
1.1       anton     218:                                     Double_Store _d; \
                    219:                                     _d.cells.low = (lo); \
                    220:                                     _d.cells.high = (hi); \
1.16      anton     221:                                     (d_) = _d.t_; \
1.1       anton     222:                                 })
                    223: 
1.16      anton     224: #define STORE_DCELL_T(d_,lo,hi,t_)     ({ \
1.1       anton     225:                                     Double_Store _d; \
1.16      anton     226:                                     _d.t_ = (d_); \
1.1       anton     227:                                     (lo) = _d.cells.low; \
                    228:                                     (hi) = _d.cells.high; \
                    229:                                 })
                    230: 
1.28      anton     231: #define vm_twoCell2d(lo,hi,d_)  FETCH_DCELL_T(d_,lo,hi,d);
                    232: #define vm_twoCell2ud(lo,hi,d_) FETCH_DCELL_T(d_,lo,hi,ud);
1.1       anton     233: 
1.28      anton     234: #define vm_d2twoCell(d_,lo,hi)  STORE_DCELL_T(d_,lo,hi,d);
                    235: #define vm_ud2twoCell(d_,lo,hi) STORE_DCELL_T(d_,lo,hi,ud);
1.1       anton     236: 
                    237: typedef Label *Xt;
                    238: 
                    239: /* PFA gives the parameter field address corresponding to a cfa */
                    240: #define PFA(cfa)       (((Cell *)cfa)+2)
                    241: /* PFA1 is a special version for use just after a NEXT1 */
                    242: #define PFA1(cfa)      PFA(cfa)
                    243: /* CODE_ADDRESS is the address of the code jumped to through the code field */
                    244: #define CODE_ADDRESS(cfa)      (*(Xt)(cfa))
                    245: 
                    246: /* DOES_CODE is the Forth code does jumps to */
                    247: #if !defined(DOUBLY_INDIRECT)
                    248: #  define DOES_CA (symbols[DODOES])
                    249: #else /* defined(DOUBLY_INDIRECT) */
1.24      anton     250: #  define DOES_CA ((Label)&xts[DODOES])
1.1       anton     251: #endif /* defined(DOUBLY_INDIRECT) */
                    252: 
                    253: 
                    254: 
                    255: #define DOES_CODE1(cfa)        ((Xt *)(cfa[1]))
                    256: /* MAKE_CF creates an appropriate code field at the cfa;
                    257:    ca is the code address */
                    258: #define MAKE_CF(cfa,ca) ((*(Label *)(cfa)) = ((Label)ca))
                    259: /* make a code field for a defining-word-defined word */
                    260: #define MAKE_DOES_CF(cfa,does_code)  ({MAKE_CF(cfa,DOES_CA);   \
                    261:                                       ((Cell *)cfa)[1] = (Cell)(does_code);})
                    262: 
                    263: #define CF(const)      (-const-2)
                    264: 
                    265: #define CF_NIL -1
                    266: 
                    267: #ifndef FLUSH_ICACHE
                    268: #warning flush-icache probably will not work (see manual)
                    269: #      define FLUSH_ICACHE(addr,size)
1.45      anton     270: #warning no FLUSH_ICACHE, turning off dynamic native code by default
                    271: #undef NO_DYNAMIC_DEFAULT
                    272: #define NO_DYNAMIC_DEFAULT 1
1.1       anton     273: #endif
                    274: 
1.67      anton     275: #if defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING)
                    276: #define STACK_CACHE_DEFAULT 0
1.1       anton     277: #else
1.67      anton     278: #define STACK_CACHE_DEFAULT STACK_CACHE_DEFAULT_FAST
1.1       anton     279: #endif
                    280: 
                    281: #ifdef USE_FTOS
1.14      anton     282: #define IF_fpTOS(x) x
1.1       anton     283: #else
1.14      anton     284: #define IF_fpTOS(x)
                    285: #define fpTOS (fp[0])
1.1       anton     286: #endif
                    287: 
1.15      anton     288: #define IF_rpTOS(x)
                    289: #define rpTOS (rp[0])
                    290: 
1.10      anton     291: typedef struct {
                    292:   Address base;                /* base address of image (0 if relocatable) */
                    293:   UCell checksum;      /* checksum of ca's to protect against some
                    294:                           incompatible binary/executable combinations
                    295:                           (0 if relocatable) */
                    296:   UCell image_size;    /* all sizes in bytes */
                    297:   UCell dict_size;
                    298:   UCell data_stack_size;
                    299:   UCell fp_stack_size;
                    300:   UCell return_stack_size;
                    301:   UCell locals_stack_size;
                    302:   Xt *boot_entry;      /* initial ip for booting (in BOOT) */
                    303:   Xt *throw_entry;     /* ip after signal (in THROW) */
                    304:   Cell unused1;                /* possibly tib stack size */
1.24      anton     305:   Label *xt_base;         /* base of DOUBLE_INDIRECT xts[], for comp-i.fs */
1.10      anton     306:   Address data_stack_base; /* this and the following fields are initialized by the loader */
                    307:   Address fp_stack_base;
                    308:   Address return_stack_base;
                    309:   Address locals_stack_base;
                    310: } ImageHeader;
                    311: /* the image-header is created in main.fs */
                    312: 
1.82      pazsan    313: #ifdef HAS_F83HEADERSTRING
                    314: struct F83Name {
                    315:   struct F83Name *next;  /* the link field for old hands */
                    316:   char         countetc;
                    317:   char         name[0];
                    318: };
                    319: 
                    320: #define F83NAME_COUNT(np)      ((np)->countetc & 0x1f)
                    321: #endif
1.48      anton     322: struct Longname {
                    323:   struct Longname *next;  /* the link field for old hands */
                    324:   Cell         countetc;
                    325:   char         name[0];
                    326: };
                    327: 
                    328: #define LONGNAME_COUNT(np)     ((np)->countetc & (((~((UCell)0))<<3)>>3))
                    329: 
                    330: struct Cellpair {
                    331:   Cell n1;
                    332:   Cell n2;
                    333: };
                    334: 
                    335: struct Cellquad {
                    336:   Cell n1;
                    337:   Cell n2;
                    338:   Cell n3;
                    339:   Cell n4;
                    340: };
1.49      anton     341: 
                    342: #define IOR(flag)      ((flag)? -512-errno : 0)
1.48      anton     343: 
1.73      pazsan    344: Label *gforth_engine(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp);
                    345: Label *gforth_engine2(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp);
                    346: Label *gforth_engine3(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp);
1.48      anton     347: 
                    348: /* engine/prim support routines */
1.71      pazsan    349: Address gforth_alloc(Cell size);
1.35      anton     350: char *cstr(Char *from, UCell size, int clear);
1.11      anton     351: char *tilde_cstr(Char *from, UCell size, int clear);
1.35      anton     352: DCell timeval2us(struct timeval *tvp);
1.48      anton     353: void cmove(Char *c_from, Char *c_to, UCell u);
                    354: void cmove_up(Char *c_from, Char *c_to, UCell u);
                    355: Cell compare(Char *c_addr1, UCell u1, Char *c_addr2, UCell u2);
                    356: struct Longname *listlfind(Char *c_addr, UCell u, struct Longname *longname1);
                    357: struct Longname *hashlfind(Char *c_addr, UCell u, Cell *a_addr);
                    358: struct Longname *tablelfind(Char *c_addr, UCell u, Cell *a_addr);
                    359: UCell hashkey1(Char *c_addr, UCell u, UCell ubits);
                    360: struct Cellpair parse_white(Char *c_addr1, UCell u1);
                    361: Cell rename_file(Char *c_addr1, UCell u1, Char *c_addr2, UCell u2);
                    362: struct Cellquad read_line(Char *c_addr, UCell u1, Cell wfileid);
                    363: struct Cellpair file_status(Char *c_addr, UCell u);
                    364: Cell to_float(Char *c_addr, UCell u, Float *rp);
                    365: Float v_star(Float *f_addr1, Cell nstride1, Float *f_addr2, Cell nstride2, UCell ucount);
                    366: void faxpy(Float ra, Float *f_x, Cell nstridex, Float *f_y, Cell nstridey, UCell ucount);
1.60      pazsan    367: UCell lshift(UCell u1, UCell n);
                    368: UCell rshift(UCell u1, UCell n);
1.61      anton     369: int gforth_system(Char *c_addr, UCell u);
1.83      anton     370: void gforth_ms(UCell u);
1.72      pazsan    371: Cell capscompare(Char *c_addr1, UCell u1, Char *c_addr2, UCell u2);
1.1       anton     372: 
1.50      anton     373: /* signal handler stuff */
                    374: void install_signal_handlers(void);
1.75      anton     375: void throw(int code);
1.76      anton     376: /* throw codes */
                    377: #define BALL_DIVZERO     -10
                    378: #define BALL_RESULTRANGE -11
                    379: 
1.50      anton     380: typedef void Sigfunc(int);
                    381: Sigfunc *bsd_signal(int signo, Sigfunc *func);
                    382: 
1.1       anton     383: /* dblsub routines */
                    384: DCell dnegate(DCell d1);
                    385: UDCell ummul (UCell a, UCell b);
                    386: DCell mmul (Cell a, Cell b);
                    387: UDCell umdiv (UDCell u, UCell v);
                    388: DCell smdiv (DCell num, Cell denom);
                    389: DCell fmdiv (DCell num, Cell denom);
                    390: 
1.7       pazsan    391: Cell memcasecmp(const Char *s1, const Char *s2, Cell n);
1.1       anton     392: 
1.18      anton     393: void vm_print_profile(FILE *file);
                    394: void vm_count_block(Xt *ip);
1.17      anton     395: 
1.22      anton     396: /* dynamic superinstruction stuff */
1.33      anton     397: void compile_prim1(Cell *start);
                    398: void finish_code(void);
1.34      anton     399: int forget_dyncode(Address code);
                    400: Label decompile_code(Label prim);
1.17      anton     401: 
1.1       anton     402: extern int offset_image;
1.5       anton     403: extern int die_on_signal;
1.74      anton     404: extern int ignore_async_signals;
1.10      anton     405: extern UCell pagesize;
                    406: extern ImageHeader *gforth_header;
1.19      anton     407: extern Label *vm_prims;
1.24      anton     408: extern Label *xts;
1.25      anton     409: extern Cell npriminfos;
1.2       pazsan    410: 
1.31      anton     411: #ifdef HAS_DEBUG
                    412: extern int debug;
                    413: #else
                    414: # define debug 0
                    415: #endif
                    416: 
1.71      pazsan    417: extern Cell *gforth_SP;
                    418: extern Float *gforth_FP;
                    419: extern Address gforth_UP;
1.35      anton     420: 
1.53      pazsan    421: #ifdef HAS_FFCALL
1.71      pazsan    422: extern Cell *gforth_RP;
                    423: extern Address gforth_LP;
                    424: extern void gforth_callback(Xt* fcall, void * alist);
1.53      pazsan    425: #endif
                    426: 
1.69      pazsan    427: #ifdef HAS_LIBFFI
1.71      pazsan    428: extern Cell *gforth_RP;
                    429: extern Address gforth_LP;
1.69      pazsan    430: #include <ffi.h>
1.72      pazsan    431: extern void gforth_callback(ffi_cif * cif, void * resp, void ** args, void * ip);
1.69      pazsan    432: #endif
                    433: 
1.9       anton     434: #ifdef GFORTH_DEBUGGING
1.29      anton     435: extern Xt *saved_ip;
1.9       anton     436: extern Cell *rp;
1.35      anton     437: #endif
                    438: 
                    439: #ifdef NO_IP
                    440: extern Label next_code;
                    441: #endif
                    442: 
                    443: #ifdef HAS_FILE
                    444: extern char* fileattr[6];
                    445: extern char* pfileattr[6];
                    446: extern int ufileattr[6];
1.9       anton     447: #endif
                    448: 
1.27      anton     449: #ifdef PRINT_SUPER_LENGTHS
                    450: Cell prim_length(Cell prim);
                    451: void print_super_lengths();
                    452: #endif
1.9       anton     453: 
1.2       pazsan    454: /* declare all the functions that are missing */
                    455: #ifndef HAVE_ATANH
                    456: extern double atanh(double r1);
                    457: extern double asinh(double r1);
                    458: extern double acosh(double r1);
                    459: #endif
                    460: #ifndef HAVE_ECVT
1.4       anton     461: /* extern char* ecvt(double x, int len, int* exp, int* sign);*/
1.2       pazsan    462: #endif
                    463: #ifndef HAVE_MEMMOVE
1.3       anton     464: /* extern char *memmove(char *dest, const char *src, long n); */
1.2       pazsan    465: #endif
                    466: #ifndef HAVE_POW10
                    467: extern double pow10(double x);
                    468: #endif
                    469: #ifndef HAVE_STRERROR
                    470: extern char *strerror(int err);
                    471: #endif
                    472: #ifndef HAVE_STRSIGNAL
                    473: extern char *strsignal(int sig);
                    474: #endif
                    475: #ifndef HAVE_STRTOUL
1.3       anton     476: extern unsigned long int strtoul(const char *nptr, char **endptr, int base);
1.2       pazsan    477: #endif
                    478: 
1.37      pazsan    479: #define GROUP(x, n)
1.53      pazsan    480: #define GROUPADD(n)

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