version 1.18, 2000/06/14 20:31:47
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version 1.39, 2002/01/20 19:04:11
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/* Gforth virtual machine (aka inner interpreter) |
/* Gforth virtual machine (aka inner interpreter) |
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Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc. |
Copyright (C) 1995,1996,1997,1998,2000 Free Software Foundation, Inc. |
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This file is part of Gforth. |
This file is part of Gforth. |
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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, write to the Free Software |
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
*/ |
*/ |
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undefine(`symbols') |
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#include "config.h" |
#include "config.h" |
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#include "forth.h" |
#include <ctype.h> |
#include <ctype.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <string.h> |
#include <string.h> |
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#include <assert.h> |
#include <assert.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <errno.h> |
#include <errno.h> |
#include "forth.h" |
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#include "io.h" |
#include "io.h" |
#include "threaded.h" |
#include "threaded.h" |
#ifndef STANDALONE |
#ifndef STANDALONE |
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#include <unistd.h> |
#include <unistd.h> |
#include <pwd.h> |
#include <pwd.h> |
#include <dirent.h> |
#include <dirent.h> |
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#include <sys/resource.h> |
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#ifdef HAVE_FNMATCH_H |
#include <fnmatch.h> |
#include <fnmatch.h> |
#else |
#else |
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#include "fnmatch.h" |
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#endif |
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#else |
#include "systypes.h" |
#include "systypes.h" |
#endif |
#endif |
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Line 67 struct F83Name {
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Line 74 struct F83Name {
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char name[0]; |
char name[0]; |
}; |
}; |
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/* are macros for setting necessary? */ |
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#define F83NAME_COUNT(np) ((np)->countetc & 0x1f) |
#define F83NAME_COUNT(np) ((np)->countetc & 0x1f) |
#define F83NAME_SMUDGE(np) (((np)->countetc & 0x40) != 0) |
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#define F83NAME_IMMEDIATE(np) (((np)->countetc & 0x20) != 0) |
struct Longname { |
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struct Longname *next; /* the link field for old hands */ |
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Cell countetc; |
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char name[0]; |
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}; |
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#define LONGNAME_COUNT(np) ((np)->countetc & (((~((UCell)0))<<3)>>3)) |
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Cell *SP; |
Cell *SP; |
Float *FP; |
Float *FP; |
Line 165 char *tilde_cstr(Char *from, UCell size,
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Line 177 char *tilde_cstr(Char *from, UCell size,
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} |
} |
#endif |
#endif |
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DCell timeval2us(struct timeval *tvp) |
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{ |
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#ifndef BUGGY_LONG_LONG |
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return (tvp->tv_sec*(DCell)1000000)+tvp->tv_usec; |
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#else |
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DCell d2; |
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DCell d1=mmul(tvp->tv_sec,1000000); |
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d2.lo = d1.lo+tvp->tv_usec; |
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d2.hi = d1.hi + (d2.lo<d1.lo); |
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return d2; |
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#endif |
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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 173 char *tilde_cstr(Char *from, UCell size,
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Line 198 char *tilde_cstr(Char *from, UCell size,
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#ifdef HAS_FILE |
#ifdef HAS_FILE |
static char* fileattr[6]={"rb","rb","r+b","r+b","wb","wb"}; |
static char* fileattr[6]={"rb","rb","r+b","r+b","wb","wb"}; |
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static char* pfileattr[6]={"r","r","r+","r+","w","w"}; |
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#ifndef O_BINARY |
#ifndef O_BINARY |
#define O_BINARY 0 |
#define O_BINARY 0 |
Line 187 static int ufileattr[6]= {
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Line 213 static int ufileattr[6]= {
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O_WRONLY|O_BINARY, O_WRONLY|O_BINARY }; |
O_WRONLY|O_BINARY, O_WRONLY|O_BINARY }; |
#endif |
#endif |
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/* conversion on fetch */ |
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#define vm_Cell2f(x) ((Bool)(x)) |
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#define vm_Cell2c(x) ((Char)(x)) |
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#define vm_Cell2n(x) ((Cell)x) |
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#define vm_Cell2w(x) ((Cell)x) |
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#define vm_Cell2u(x) ((UCell)(x)) |
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#define vm_Cell2a_(x) ((Cell *)(x)) |
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#define vm_Cell2c_(x) ((Char *)(x)) |
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#define vm_Cell2f_(x) ((Float *)(x)) |
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#define vm_Cell2df_(x) ((DFloat *)(x)) |
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#define vm_Cell2sf_(x) ((SFloat *)(x)) |
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#define vm_Cell2xt(x) ((Xt)(x)) |
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#define vm_Cell2f83name(x) ((struct F83Name *)(x)) |
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#define vm_Cell2longname(x) ((struct Longname *)(x)) |
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#define vm_Float2r(x) (x) |
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/* conversion on store */ |
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#define vm_f2Cell(x) ((Cell)(x)) |
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#define vm_c2Cell(x) ((Cell)(x)) |
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#define vm_n2Cell(x) ((Cell)(x)) |
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#define vm_w2Cell(x) ((Cell)(x)) |
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#define vm_u2Cell(x) ((Cell)(x)) |
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#define vm_a_2Cell(x) ((Cell)(x)) |
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#define vm_c_2Cell(x) ((Cell)(x)) |
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#define vm_f_2Cell(x) ((Cell)(x)) |
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#define vm_df_2Cell(x) ((Cell)(x)) |
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#define vm_sf_2Cell(x) ((Cell)(x)) |
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#define vm_xt2Cell(x) ((Cell)(x)) |
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#define vm_f83name2Cell(x) ((Cell)(x)) |
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#define vm_longname2Cell(x) ((Cell)(x)) |
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#define vm_r2Float(x) (x) |
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#define vm_Cell2Cell(x) (x) |
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/* if machine.h has not defined explicit registers, define them as implicit */ |
/* if machine.h has not defined explicit registers, define them as implicit */ |
#ifndef IPREG |
#ifndef IPREG |
#define IPREG |
#define IPREG |
Line 220 static int ufileattr[6]= {
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Line 282 static int ufileattr[6]= {
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# define CPU_DEP1 0 |
# define CPU_DEP1 0 |
#endif |
#endif |
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/* declare and compute cfa for certain threading variants */ |
/* instructions containing these must be the last instruction of a |
/* warning: this is nonsyntactical; it will not work in place of a statement */ |
super-instruction (e.g., branches, EXECUTE, and other instructions |
#ifndef GETCFA |
ending the basic block). Instructions containing SET_IP get this |
#define DOCFA |
automatically, so you usually don't have to write it. If you have |
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to write it, write it after IP points to the next instruction. |
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Used for profiling. Don't write it in a word containing SET_IP, or |
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the following block will be counted twice. */ |
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#ifdef VM_PROFILING |
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#define SUPER_END vm_count_block(IP) |
#else |
#else |
#define DOCFA Xt cfa; GETCFA(cfa) |
#define SUPER_END |
#endif |
#endif |
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#define SUPER_CONTINUE |
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#ifdef GFORTH_DEBUGGING |
#ifdef GFORTH_DEBUGGING |
/* define some VM registers as global variables, so they survive exceptions; |
/* define some VM registers as global variables, so they survive exceptions; |
Line 236 Xt *ip;
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Line 304 Xt *ip;
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Cell *rp; |
Cell *rp; |
#endif |
#endif |
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Label *engine(Xt *ip0, Cell *sp0, Cell *rp0, Float *fp0, Address lp0) |
#ifdef DEBUG |
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#define CFA_TO_NAME(__cfa) \ |
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Cell len, i; \ |
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char * name = __cfa; \ |
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for(i=0; i<32; i+=sizeof(Cell)) { \ |
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len = ((Cell*)name)[-1]; \ |
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if(len < 0) { \ |
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len &= 0x1F; \ |
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if((len+sizeof(Cell)) > i) break; \ |
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} len = 0; \ |
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name -= sizeof(Cell); \ |
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} |
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#endif |
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Xt *primtable(Label symbols[], Cell size) |
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/* used in primitive primtable for peephole optimization */ |
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{ |
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#ifdef DIRECT_THREADED |
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return symbols; |
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#else /* !defined(DIRECT_THREADED) */ |
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Xt *xts = (Xt *)malloc(size*sizeof(Xt)); |
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Cell i; |
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for (i=0; i<size; i++) |
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xts[i] = &symbols[i]; |
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return xts; |
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#endif /* !defined(DIRECT_THREADED) */ |
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} |
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define(enginerest, |
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`(Xt *ip0, Cell *sp0, Cell *rp0, Float *fp0, Address lp0) |
/* 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 |
*/ |
*/ |
Line 248 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 347 Label *engine(Xt *ip0, Cell *sp0, Cell *
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register Cell *sp SPREG = sp0; |
register Cell *sp SPREG = sp0; |
register Float *fp FPREG = fp0; |
register Float *fp FPREG = fp0; |
register Address lp LPREG = lp0; |
register Address lp LPREG = lp0; |
#ifdef CFA_NEXT |
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register Xt cfa CFAREG; |
register Xt cfa CFAREG; |
#endif |
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#ifdef MORE_VARS |
#ifdef MORE_VARS |
MORE_VARS |
MORE_VARS |
#endif |
#endif |
register Address up UPREG = UP; |
register Address up UPREG = UP; |
IF_TOS(register Cell TOS TOSREG;) |
IF_spTOS(register Cell spTOS TOSREG;) |
IF_FTOS(register Float FTOS FTOSREG;) |
IF_fpTOS(register Float fpTOS FTOSREG;) |
#if defined(DOUBLY_INDIRECT) |
#if defined(DOUBLY_INDIRECT) |
static Label *symbols; |
static Label *symbols; |
static void *routines[]= { |
static void *routines[]= { |
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#define MAX_SYMBOLS (sizeof(routines)/sizeof(routines[0])) |
#else /* !defined(DOUBLY_INDIRECT) */ |
#else /* !defined(DOUBLY_INDIRECT) */ |
static Label symbols[]= { |
static Label symbols[]= { |
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#define MAX_SYMBOLS (sizeof(symbols)/sizeof(symbols[0])) |
#endif /* !defined(DOUBLY_INDIRECT) */ |
#endif /* !defined(DOUBLY_INDIRECT) */ |
(Label)&&docol, |
(Label)&&docol, |
(Label)&&docon, |
(Label)&&docon, |
Line 271 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 370 Label *engine(Xt *ip0, Cell *sp0, Cell *
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(Label)&&dofield, |
(Label)&&dofield, |
(Label)&&dodoes, |
(Label)&&dodoes, |
/* the following entry is normally unused; |
/* the following entry is normally unused; |
it's there because its index indicates a does-handler */ |
it is there because its index indicates a does-handler */ |
CPU_DEP1, |
CPU_DEP1, |
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#define INST_ADDR(name) (Label)&&I_##name |
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#include "prim_lab.i" |
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#undef INST_ADDR |
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(Label)&&after_last, |
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(Label)0, |
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#ifdef IN_ENGINE2 |
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#define INST_ADDR(name) (Label)&&J_##name |
#include "prim_lab.i" |
#include "prim_lab.i" |
(Label)0 |
#undef INST_ADDR |
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#endif |
}; |
}; |
#ifdef CPU_DEP2 |
#ifdef CPU_DEP2 |
CPU_DEP2 |
CPU_DEP2 |
Line 290 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 397 Label *engine(Xt *ip0, Cell *sp0, Cell *
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if (ip == NULL) { |
if (ip == NULL) { |
#if defined(DOUBLY_INDIRECT) |
#if defined(DOUBLY_INDIRECT) |
#define MAX_SYMBOLS (sizeof(routines)/sizeof(routines[0])) |
#define CODE_OFFSET (26*sizeof(Cell)) |
#define CODE_OFFSET (22*sizeof(Cell)) |
#define XT_OFFSET (22*sizeof(Cell)) |
int i; |
int i; |
Cell code_offset = offset_image? CODE_OFFSET : 0; |
Cell code_offset = offset_image? CODE_OFFSET : 0; |
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Cell xt_offset = offset_image? XT_OFFSET : 0; |
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symbols = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+CODE_OFFSET)+code_offset); |
symbols = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+CODE_OFFSET)+code_offset); |
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xts = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+XT_OFFSET)+xt_offset); |
for (i=0; i<DOESJUMP+1; i++) |
for (i=0; i<DOESJUMP+1; 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) { |
fprintf(stderr,"gforth-ditc: more than %d primitives\n",MAX_SYMBOLS); |
fprintf(stderr,"gforth-ditc: more than %d primitives\n",MAX_SYMBOLS); |
exit(1); |
exit(1); |
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} |
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xts[i] = symbols[i] = &routines[i]; |
} |
} |
symbols[i] = &routines[i]; |
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} |
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#endif /* defined(DOUBLY_INDIRECT) */ |
#endif /* defined(DOUBLY_INDIRECT) */ |
return symbols; |
return symbols; |
} |
} |
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IF_TOS(TOS = sp[0]); |
IF_spTOS(spTOS = sp[0]); |
IF_FTOS(FTOS = fp[0]); |
IF_fpTOS(fpTOS = fp[0]); |
/* prep_terminal(); */ |
/* prep_terminal(); */ |
SET_IP(ip); |
SET_IP(ip); |
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SUPER_END; /* count the first block, too */ |
NEXT; |
NEXT; |
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Line 322 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 432 Label *engine(Xt *ip0, Cell *sp0, Cell *
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docol: |
docol: |
{ |
{ |
DOCFA; |
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#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08lx: col: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
{ |
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CFA_TO_NAME(cfa); |
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fprintf(stderr,"%08lx: col: %08lx %.*s\n",(Cell)ip,(Cell)PFA1(cfa), |
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len,name); |
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} |
#endif |
#endif |
#ifdef CISC_NEXT |
#ifdef CISC_NEXT |
/* this is the simple version */ |
/* this is the simple version */ |
*--rp = (Cell)ip; |
*--rp = (Cell)ip; |
SET_IP((Xt *)PFA1(cfa)); |
SET_IP((Xt *)PFA1(cfa)); |
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SUPER_END; |
NEXT; |
NEXT; |
#else |
#else |
/* this one is important, so we help the compiler optimizing */ |
/* this one is important, so we help the compiler optimizing */ |
Line 337 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 451 Label *engine(Xt *ip0, Cell *sp0, Cell *
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DEF_CA |
DEF_CA |
rp[-1] = (Cell)ip; |
rp[-1] = (Cell)ip; |
SET_IP((Xt *)PFA1(cfa)); |
SET_IP((Xt *)PFA1(cfa)); |
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SUPER_END; |
NEXT_P1; |
NEXT_P1; |
rp--; |
rp--; |
NEXT_P2; |
NEXT_P2; |
Line 346 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 461 Label *engine(Xt *ip0, Cell *sp0, Cell *
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docon: |
docon: |
{ |
{ |
DOCFA; |
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#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08lx: con: %08lx\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-- = spTOS; |
TOS = *(Cell *)PFA1(cfa); |
spTOS = *(Cell *)PFA1(cfa); |
#else |
#else |
*--sp = *(Cell *)PFA1(cfa); |
*--sp = *(Cell *)PFA1(cfa); |
#endif |
#endif |
Line 362 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 476 Label *engine(Xt *ip0, Cell *sp0, Cell *
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dovar: |
dovar: |
{ |
{ |
DOCFA; |
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#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08lx: var: %08lx\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-- = spTOS; |
TOS = (Cell)PFA1(cfa); |
spTOS = (Cell)PFA1(cfa); |
#else |
#else |
*--sp = (Cell)PFA1(cfa); |
*--sp = (Cell)PFA1(cfa); |
#endif |
#endif |
Line 378 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 491 Label *engine(Xt *ip0, Cell *sp0, Cell *
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douser: |
douser: |
{ |
{ |
DOCFA; |
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#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08lx: user: %08lx\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-- = spTOS; |
TOS = (Cell)(up+*(Cell*)PFA1(cfa)); |
spTOS = (Cell)(up+*(Cell*)PFA1(cfa)); |
#else |
#else |
*--sp = (Cell)(up+*(Cell*)PFA1(cfa)); |
*--sp = (Cell)(up+*(Cell*)PFA1(cfa)); |
#endif |
#endif |
Line 394 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 506 Label *engine(Xt *ip0, Cell *sp0, Cell *
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dodefer: |
dodefer: |
{ |
{ |
DOCFA; |
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#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08lx: defer: %08lx\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
fprintf(stderr,"%08lx: defer: %08lx\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
#endif |
#endif |
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SUPER_END; |
EXEC(*(Xt *)PFA1(cfa)); |
EXEC(*(Xt *)PFA1(cfa)); |
} |
} |
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dofield: |
dofield: |
{ |
{ |
DOCFA; |
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#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08lx: field: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
fprintf(stderr,"%08lx: field: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
#endif |
#endif |
TOS += *(Cell*)PFA1(cfa); |
spTOS += *(Cell*)PFA1(cfa); |
} |
} |
NEXT_P0; |
NEXT_P0; |
NEXT; |
NEXT; |
Line 431 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 542 Label *engine(Xt *ip0, Cell *sp0, Cell *
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*/ |
*/ |
{ |
{ |
DOCFA; |
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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));*/ |
/* fprintf(stderr, "Got CFA %08lx at doescode %08lx/%08lx: does: %08lx\n",cfa,(Cell)ip,(Cell)PFA(cfa),(Cell)DOES_CODE1(cfa));*/ |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"%08lx/%08lx: does: %08lx\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)); |
Line 441 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 550 Label *engine(Xt *ip0, Cell *sp0, Cell *
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*--rp = (Cell)ip; |
*--rp = (Cell)ip; |
/* PFA1 might collide with DOES_CODE1 here, so we use PFA */ |
/* PFA1 might collide with DOES_CODE1 here, so we use PFA */ |
#ifdef USE_TOS |
#ifdef USE_TOS |
*sp-- = TOS; |
*sp-- = spTOS; |
TOS = (Cell)PFA(cfa); |
spTOS = (Cell)PFA(cfa); |
#else |
#else |
*--sp = (Cell)PFA(cfa); |
*--sp = (Cell)PFA(cfa); |
#endif |
#endif |
SET_IP(DOES_CODE1(cfa)); |
SET_IP(DOES_CODE1(cfa)); |
/* fprintf(stderr,"TOS = %08lx, IP=%08lx\n", TOS, IP);*/ |
SUPER_END; |
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/* fprintf(stderr,"TOS = %08lx, IP=%08lx\n", spTOS, IP);*/ |
} |
} |
NEXT; |
NEXT; |
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#ifndef IN_ENGINE2 |
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#define LABEL(name) I_##name |
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#else |
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#define LABEL(name) J_##name: asm(".skip 16"); I_##name |
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#endif |
#include "prim.i" |
#include "prim.i" |
} |
#undef LABEL |
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after_last: return (Label *)0; |
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/*needed only to get the length of the last primitive */ |
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}' |
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) |
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Label *engine enginerest |
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#define IN_ENGINE2 |
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Label *engine2 enginerest |
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