/* common header file Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc. This file is part of Gforth. Gforth is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. */ #define _GNU_SOURCE #include "config.h" #include #if defined(DOUBLY_INDIRECT) # undef DIRECT_THREADED # undef INDIRECT_THREADED # define INDIRECT_THREADED #endif #include #if defined(NeXT) # include #endif /* NeXT */ /* symbol indexed constants */ #define DOCOL 0 #define DOCON 1 #define DOVAR 2 #define DOUSER 3 #define DODEFER 4 #define DOFIELD 5 #define DODOES 6 #define DOESJUMP 7 /* the size of the DOESJUMP, which resides between DOES> and the does-code */ #define DOES_HANDLER_SIZE (2*sizeof(Cell)) #include "machine.h" /* Forth data types */ /* Cell and UCell must be the same size as a pointer */ #define CELL_BITS (sizeof(Cell) * CHAR_BIT) #define FLAG(b) (-(b)) #define FILEIO(error) (FLAG(error) & -37) #define FILEEXIST(error) (FLAG(error) & -38) #define F_TRUE (FLAG(0==0)) #define F_FALSE (FLAG(0!=0)) #ifdef BUGGY_LONG_LONG typedef struct { Cell hi; UCell lo; } DCell; typedef struct { UCell hi; UCell lo; } UDCell; #define LONG2UD(l) ({UDCell _ud; _ud.hi=0; _ud.lo=(Cell)(l); _ud;}) #define UD2LONG(ud) ((long)(ud.lo)) #define DZERO ((DCell){0,0}) #else /* ! defined(BUGGY_LONG_LONG) */ /* DCell and UDCell must be twice as large as Cell */ typedef DOUBLE_CELL_TYPE DCell; typedef unsigned DOUBLE_CELL_TYPE UDCell; #define LONG2UD(l) ((UDCell)(l)) #define UD2LONG(ud) ((long)(ud)) #define DZERO ((DCell)0) #endif /* ! defined(BUGGY_LONG_LONG) */ typedef union { struct { #if defined(WORDS_BIGENDIAN)||defined(BUGGY_LONG_LONG) Cell high; UCell low; #else UCell low; Cell high; #endif } cells; DCell d; UDCell ud; } Double_Store; #define FETCH_DCELL_T(d_,lo,hi,t_) ({ \ Double_Store _d; \ _d.cells.low = (lo); \ _d.cells.high = (hi); \ (d_) = _d.t_; \ }) #define STORE_DCELL_T(d_,lo,hi,t_) ({ \ Double_Store _d; \ _d.t_ = (d_); \ (lo) = _d.cells.low; \ (hi) = _d.cells.high; \ }) #define vm_twoCell2d(d_,lo,hi) FETCH_DCELL_T(d_,lo,hi,d) #define vm_twoCell2ud(d_,lo,hi) FETCH_DCELL_T(d_,lo,hi,ud) #define vm_d2twoCell(d_,lo,hi) STORE_DCELL_T(d_,lo,hi,d) #define vm_ud2twoCell(d_,lo,hi) STORE_DCELL_T(d_,lo,hi,ud) #ifdef DIRECT_THREADED typedef Label Xt; #else typedef Label *Xt; #endif #if !defined(DIRECT_THREADED) /* i.e. indirect threaded our doubly indirect threaded */ /* the direct threaded version is machine dependent and resides in machine.h */ /* PFA gives the parameter field address corresponding to a cfa */ #define PFA(cfa) (((Cell *)cfa)+2) /* PFA1 is a special version for use just after a NEXT1 */ #define PFA1(cfa) PFA(cfa) /* CODE_ADDRESS is the address of the code jumped to through the code field */ #define CODE_ADDRESS(cfa) (*(Xt)(cfa)) /* DOES_CODE is the Forth code does jumps to */ #if !defined(DOUBLY_INDIRECT) # define DOES_CA (symbols[DODOES]) #else /* defined(DOUBLY_INDIRECT) */ # define DOES_CA ((Label)&symbols[DODOES]) #endif /* defined(DOUBLY_INDIRECT) */ #define DOES_CODE(cfa) ({Xt _cfa=(Xt)(cfa); \ (Xt *)(_cfa[0]==DOES_CA ? _cfa[1] : NULL);}) #define DOES_CODE1(cfa) ((Xt *)(cfa[1])) /* MAKE_CF creates an appropriate code field at the cfa; ca is the code address */ #define MAKE_CF(cfa,ca) ((*(Label *)(cfa)) = ((Label)ca)) /* 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) */ #endif /* !defined(DIRECT_THREADED) */ #ifdef DEBUG # define NAME(string) fprintf(stderr,"%08lx: "string"\n",(Cell)ip); #else # define NAME(string) #endif #define CF(const) (-const-2) #define CF_NIL -1 #ifndef FLUSH_ICACHE #warning flush-icache probably will not work (see manual) # define FLUSH_ICACHE(addr,size) #endif #if defined(DIRECT_THREADED) #define CACHE_FLUSH(addr,size) FLUSH_ICACHE(addr,size) #else #define CACHE_FLUSH(addr,size) #endif #ifdef USE_TOS #define IF_spTOS(x) x #else #define IF_spTOS(x) #define spTOS (sp[0]) #endif #ifdef USE_FTOS #define IF_fpTOS(x) x #else #define IF_fpTOS(x) #define fpTOS (fp[0]) #endif #define IF_rpTOS(x) #define rpTOS (rp[0]) typedef struct { Address base; /* base address of image (0 if relocatable) */ UCell checksum; /* checksum of ca's to protect against some incompatible binary/executable combinations (0 if relocatable) */ UCell image_size; /* all sizes in bytes */ UCell dict_size; UCell data_stack_size; UCell fp_stack_size; UCell return_stack_size; UCell locals_stack_size; Xt *boot_entry; /* initial ip for booting (in BOOT) */ Xt *throw_entry; /* ip after signal (in THROW) */ Cell unused1; /* possibly tib stack size */ Cell unused2; 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; /* the image-header is created in main.fs */ Label *engine(Xt *ip, Cell *sp, Cell *rp, Float *fp, Address lp); Address my_alloc(Cell size); char *tilde_cstr(Char *from, UCell size, int clear); /* dblsub routines */ DCell dnegate(DCell d1); UDCell ummul (UCell a, UCell b); DCell mmul (Cell a, Cell b); UDCell umdiv (UDCell u, UCell v); DCell smdiv (DCell num, Cell denom); DCell fmdiv (DCell num, Cell denom); 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_count_block(Xt *ip); /* dynamic superinstruction stuff */ Label compile_prim(Label prim); extern int offset_image; extern int die_on_signal; extern UCell pagesize; extern ImageHeader *gforth_header; extern Label *vm_prims; #ifdef GFORTH_DEBUGGING extern Xt *ip; extern Cell *rp; #endif /* declare all the functions that are missing */ #ifndef HAVE_ATANH extern double atanh(double r1); extern double asinh(double r1); extern double acosh(double r1); #endif #ifndef HAVE_ECVT /* extern char* ecvt(double x, int len, int* exp, int* sign);*/ #endif #ifndef HAVE_MEMMOVE /* extern char *memmove(char *dest, const char *src, long n); */ #endif #ifndef HAVE_POW10 extern double pow10(double x); #endif #ifndef HAVE_STRERROR extern char *strerror(int err); #endif #ifndef HAVE_STRSIGNAL extern char *strsignal(int sig); #endif #ifndef HAVE_STRTOUL extern unsigned long int strtoul(const char *nptr, char **endptr, int base); #endif #define GROUP(x)