version 1.26, 1995/04/20 09:42:47
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version 1.31, 1995/11/07 18:06:37
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/* |
/* Gforth virtual machine (aka inner interpreter) |
Copyright 1992 by the ANSI figForth Development Group |
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Copyright (C) 1995 Free Software Foundation, Inc. |
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This file is part of Gforth. |
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Gforth is free software; you can redistribute it and/or |
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modify it under the terms of the GNU General Public License |
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as published by the Free Software Foundation; either version 2 |
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of the License, or (at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
*/ |
*/ |
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#include <ctype.h> |
#include <ctype.h> |
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Line 32
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#include <sys/time.h> |
#include <sys/time.h> |
#include <unistd.h> |
#include <unistd.h> |
#include <errno.h> |
#include <errno.h> |
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#include <pwd.h> |
#include "forth.h" |
#include "forth.h" |
#include "io.h" |
#include "io.h" |
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#include "threading.h" |
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#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 */ |
Line 49 typedef struct F83Name {
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Line 68 typedef struct F83Name {
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#define F83NAME_SMUDGE(np) (((np)->countetc & 0x40) != 0) |
#define F83NAME_SMUDGE(np) (((np)->countetc & 0x40) != 0) |
#define F83NAME_IMMEDIATE(np) (((np)->countetc & 0x20) != 0) |
#define F83NAME_IMMEDIATE(np) (((np)->countetc & 0x20) != 0) |
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/* !!someone should organize this ifdef chaos */ |
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#if defined(LONG_LATENCY) |
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#if defined(AUTO_INCREMENT) |
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#define NEXT_P0 (cfa=*ip++) |
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#define IP (ip-1) |
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#else /* AUTO_INCREMENT */ |
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#define NEXT_P0 (cfa=*ip) |
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#define IP ip |
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#endif /* AUTO_INCREMENT */ |
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#define NEXT_INST (cfa) |
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#define INC_IP(const_inc) ({cfa=IP[const_inc]; ip+=(const_inc);}) |
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#else /* LONG_LATENCY */ |
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/* NEXT and NEXT1 are split into several parts to help scheduling, |
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unless CISC_NEXT is defined */ |
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#define NEXT_P0 |
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/* in order for execute to work correctly, NEXT_P0 (or other early |
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fetches) should not update the ip (or should we put |
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compensation-code into execute? */ |
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#define NEXT_INST (*ip) |
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/* the next instruction (or what is in its place, e.g., an immediate |
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argument */ |
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#define INC_IP(const_inc) (ip+=(const_inc)) |
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/* increment the ip by const_inc and perform NEXT_P0 (or prefetching) again */ |
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#define IP ip |
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/* the pointer to the next instruction (i.e., NEXT_INST could be |
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defined as *IP) */ |
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#endif /* LONG_LATENCY */ |
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#if defined(CISC_NEXT) && !defined(LONG_LATENCY) |
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#define NEXT1_P1 |
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#define NEXT_P1 |
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#define DEF_CA |
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#ifdef DIRECT_THREADED |
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#define NEXT1_P2 ({goto *cfa;}) |
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#else |
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#define NEXT1_P2 ({goto **cfa;}) |
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#endif /* DIRECT_THREADED */ |
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#define NEXT_P2 ({cfa = *ip++; NEXT1_P2;}) |
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#else /* defined(CISC_NEXT) && !defined(LONG_LATENCY) */ |
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#ifdef DIRECT_THREADED |
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#define NEXT1_P1 |
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#define NEXT1_P2 ({goto *cfa;}) |
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#define DEF_CA |
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#else /* DIRECT_THREADED */ |
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#define NEXT1_P1 ({ca = *cfa;}) |
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#define NEXT1_P2 ({goto *ca;}) |
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#define DEF_CA Label ca; |
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#endif /* DIRECT_THREADED */ |
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#if defined(LONG_LATENCY) |
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#if defined(AUTO_INCREMENT) |
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#define NEXT_P1 NEXT1_P1 |
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#else /* AUTO_INCREMENT */ |
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#define NEXT_P1 ({ip++; NEXT1_P1;}) |
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#endif /* AUTO_INCREMENT */ |
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#else /* LONG_LATENCY */ |
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#define NEXT_P1 ({cfa=*ip++; NEXT1_P1;}) |
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#endif /* LONG_LATENCY */ |
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#define NEXT_P2 NEXT1_P2 |
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#endif /* defined(CISC_NEXT) && !defined(LONG_LATENCY) */ |
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#define NEXT1 ({DEF_CA NEXT1_P1; NEXT1_P2;}) |
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#define NEXT ({DEF_CA NEXT_P1; NEXT_P2;}) |
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#ifdef USE_TOS |
#ifdef USE_TOS |
#define IF_TOS(x) x |
#define IF_TOS(x) x |
#else |
#else |
Line 160 char *cstr(Char *from, UCell size, int c
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Line 116 char *cstr(Char *from, UCell size, int c
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return oldnextscratch; |
return oldnextscratch; |
} |
} |
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char *tilde_cstr(Char *from, UCell size, int clear) |
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/* like cstr(), but perform tilde expansion on the string */ |
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{ |
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char *s1,*s2; |
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int s1_len, s2_len; |
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struct passwd *getpwnam (), *user_entry; |
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if (size<1 || from[0]!='~') |
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return cstr(from, size, clear); |
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if (size<2 || from[1]=='/') { |
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s1 = (char *)getenv ("HOME"); |
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s2 = from+1; |
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s2_len = size-1; |
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} else { |
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int i; |
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for (i=1; i<size && from[i]!='/'; i++) |
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; |
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{ |
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char user[i]; |
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memcpy(user,from+1,i-1); |
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user[i-1]='\0'; |
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user_entry=getpwnam(user); |
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} |
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if (user_entry==NULL) |
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return cstr(from, size, clear); |
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s1 = user_entry->pw_dir; |
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s2 = from+i; |
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s2_len = size-i; |
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} |
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s1_len = strlen(s1); |
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if (s1_len>1 && s1[s1_len-1]=='/') |
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s1_len--; |
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{ |
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char path[s1_len+s2_len]; |
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memcpy(path,s1,s1_len); |
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memcpy(path+s1_len,s2,s2_len); |
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return cstr(path,s1_len+s2_len,clear); |
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} |
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} |
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#define NEWLINE '\n' |
#define NEWLINE '\n' |
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#ifndef HAVE_RINT |
#ifndef HAVE_RINT |
Line 209 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 206 Label *engine(Xt *ip0, Cell *sp0, Cell *
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register Cell *rp RPREG = rp0; |
register Cell *rp RPREG = rp0; |
register Float *fp FPREG = fp0; |
register Float *fp FPREG = fp0; |
register Address lp LPREG = lp0; |
register Address lp LPREG = lp0; |
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#ifdef CFA_NEXT |
register Xt cfa CFAREG; |
register Xt cfa CFAREG; |
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#endif |
register Address up UPREG = up0; |
register Address up UPREG = up0; |
IF_TOS(register Cell TOS TOSREG;) |
IF_TOS(register Cell TOS TOSREG;) |
IF_FTOS(register Float FTOS FTOSREG;) |
IF_FTOS(register Float FTOS FTOSREG;) |
Line 219 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 218 Label *engine(Xt *ip0, Cell *sp0, Cell *
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&&dovar, |
&&dovar, |
&&douser, |
&&douser, |
&&dodefer, |
&&dodefer, |
&&dostruc, |
&&dofield, |
&&dodoes, |
&&dodoes, |
&&dodoes, /* dummy for does handler address */ |
&&dodoes, /* dummy for does handler address */ |
#include "prim_labels.i" |
#include "prim_labels.i" |
Line 239 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 238 Label *engine(Xt *ip0, Cell *sp0, Cell *
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IF_TOS(TOS = sp[0]); |
IF_TOS(TOS = sp[0]); |
IF_FTOS(FTOS = fp[0]); |
IF_FTOS(FTOS = fp[0]); |
prep_terminal(); |
/* prep_terminal(); */ |
NEXT_P0; |
NEXT_P0; |
NEXT; |
NEXT; |
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docol: |
docol: |
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#ifndef CFA_NEXT |
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{ |
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Xt cfa; GETCFA(cfa); |
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#endif |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08x: col: %08x\n",(Cell)ip,(Cell)PFA1(cfa)); |
fprintf(stderr,"%08lx: col: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
#endif |
#endif |
#ifdef CISC_NEXT |
#ifdef CISC_NEXT |
/* this is the simple version */ |
/* this is the simple version */ |
Line 268 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 271 Label *engine(Xt *ip0, Cell *sp0, Cell *
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NEXT1_P2; |
NEXT1_P2; |
} |
} |
#endif |
#endif |
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#ifndef CFA_NEXT |
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} |
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#endif |
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docon: |
docon: |
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#ifndef CFA_NEXT |
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{ |
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Xt cfa; GETCFA(cfa); |
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#endif |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08x: con: %08x\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
fprintf(stderr,"%08lx: con: %08lx\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
#endif |
#endif |
#ifdef USE_TOS |
#ifdef USE_TOS |
*sp-- = TOS; |
*sp-- = TOS; |
Line 279 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 289 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#else |
#else |
*--sp = *(Cell *)PFA1(cfa); |
*--sp = *(Cell *)PFA1(cfa); |
#endif |
#endif |
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#ifndef CFA_NEXT |
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} |
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#endif |
NEXT_P0; |
NEXT_P0; |
NEXT; |
NEXT; |
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dovar: |
dovar: |
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#ifndef CFA_NEXT |
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{ |
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Xt cfa; GETCFA(cfa); |
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#endif |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08x: var: %08x\n",(Cell)ip,(Cell)PFA1(cfa)); |
fprintf(stderr,"%08lx: var: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
#endif |
#endif |
#ifdef USE_TOS |
#ifdef USE_TOS |
*sp-- = TOS; |
*sp-- = TOS; |
Line 292 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 309 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#else |
#else |
*--sp = (Cell)PFA1(cfa); |
*--sp = (Cell)PFA1(cfa); |
#endif |
#endif |
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#ifndef CFA_NEXT |
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} |
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#endif |
NEXT_P0; |
NEXT_P0; |
NEXT; |
NEXT; |
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douser: |
douser: |
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#ifndef CFA_NEXT |
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{ |
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Xt cfa; GETCFA(cfa); |
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#endif |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08x: user: %08x\n",(Cell)ip,(Cell)PFA1(cfa)); |
fprintf(stderr,"%08lx: user: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
#endif |
#endif |
#ifdef USE_TOS |
#ifdef USE_TOS |
*sp-- = TOS; |
*sp-- = TOS; |
Line 305 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 329 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#else |
#else |
*--sp = (Cell)(up+*(Cell*)PFA1(cfa)); |
*--sp = (Cell)(up+*(Cell*)PFA1(cfa)); |
#endif |
#endif |
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#ifndef CFA_NEXT |
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} |
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#endif |
NEXT_P0; |
NEXT_P0; |
NEXT; |
NEXT; |
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dodefer: |
dodefer: |
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#ifndef CFA_NEXT |
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{ |
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Xt cfa; GETCFA(cfa); |
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#endif |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08x: defer: %08x\n",(Cell)ip,(Cell)PFA1(cfa)); |
fprintf(stderr,"%08lx: defer: %08lx\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
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#endif |
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EXEC(*(Xt *)PFA1(cfa)); |
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#ifndef CFA_NEXT |
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} |
#endif |
#endif |
cfa = *(Xt *)PFA1(cfa); |
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NEXT1; |
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dostruc: |
dofield: |
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#ifndef CFA_NEXT |
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{ |
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Xt cfa; GETCFA(cfa); |
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#endif |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08x: struc: %08x\n",(Cell)ip,(Cell)PFA1(cfa)); |
fprintf(stderr,"%08lx: field: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
#endif |
#endif |
TOS += *(Cell*)PFA1(cfa); |
TOS += *(Cell*)PFA1(cfa); |
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#ifndef CFA_NEXT |
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} |
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#endif |
NEXT_P0; |
NEXT_P0; |
NEXT; |
NEXT; |
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Line 341 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 381 Label *engine(Xt *ip0, Cell *sp0, Cell *
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pfa: |
pfa: |
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*/ |
*/ |
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#ifndef CFA_NEXT |
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{ |
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Xt cfa; GETCFA(cfa); |
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/* fprintf(stderr, "Got CFA %08lx at doescode %08lx/%08lx: does: %08lx\n",cfa,(Cell)ip,(Cell)PFA(cfa),(Cell)DOES_CODE1(cfa));*/ |
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#endif |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08x/%08x: does: %08x\n",(Cell)ip,(Cell)PFA(cfa),(Cell)DOES_CODE1(cfa)); |
fprintf(stderr,"%08lx/%08lx: does: %08lx\n",(Cell)ip,(Cell)PFA(cfa),(Cell)DOES_CODE1(cfa)); |
fflush(stderr); |
fflush(stderr); |
#endif |
#endif |
*--rp = (Cell)ip; |
*--rp = (Cell)ip; |
Line 354 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 400 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#else |
#else |
*--sp = (Cell)PFA(cfa); |
*--sp = (Cell)PFA(cfa); |
#endif |
#endif |
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#ifndef CFA_NEXT |
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/* fprintf(stderr,"TOS = %08lx, IP=%08lx\n", TOS, IP);*/ |
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} |
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#endif |
NEXT_P0; |
NEXT_P0; |
NEXT; |
NEXT; |
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