version 1.1, 1997/05/21 20:40:07
|
version 1.105, 2007/12/31 18:40:25
|
Line 1
|
Line 1
|
/* Gforth virtual machine (aka inner interpreter) |
/* Gforth virtual machine (aka inner interpreter) |
|
|
Copyright (C) 1995 Free Software Foundation, Inc. |
Copyright (C) 1995,1996,1997,1998,2000,2003,2004,2005,2006,2007 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., 675 Mass Ave, Cambridge, MA 02139, USA. |
|
*/ |
*/ |
|
|
|
#if defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING) |
|
#define USE_NO_TOS |
|
#else |
|
#define USE_TOS |
|
#endif |
|
|
#include "config.h" |
#include "config.h" |
|
#include "forth.h" |
#include <ctype.h> |
#include <ctype.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <string.h> |
#include <string.h> |
#include <math.h> |
#include <math.h> |
|
#include <assert.h> |
|
#include <stdlib.h> |
|
#include <errno.h> |
|
#include "io.h" |
|
#include "threaded.h" |
|
#ifndef STANDALONE |
#include <sys/types.h> |
#include <sys/types.h> |
#include <sys/stat.h> |
#include <sys/stat.h> |
#include <fcntl.h> |
#include <fcntl.h> |
#include <assert.h> |
|
#include <stdlib.h> |
|
#include <time.h> |
#include <time.h> |
#include <sys/time.h> |
#include <sys/time.h> |
#include <unistd.h> |
#include <unistd.h> |
#include <errno.h> |
|
#include <pwd.h> |
#include <pwd.h> |
#include "forth.h" |
#include <dirent.h> |
#include "io.h" |
#include <wchar.h> |
#include "threaded.h" |
#include <sys/resource.h> |
|
#ifdef HAVE_FNMATCH_H |
|
#include <fnmatch.h> |
|
#else |
|
#include "fnmatch.h" |
|
#endif |
|
#else |
|
/* #include <systypes.h> */ |
|
#endif |
|
|
#if defined(HAVE_LIBDL) || defined(HAVE_DLOPEN) /* what else? */ |
#if defined(HAVE_LIBDL) || defined(HAVE_DLOPEN) /* what else? */ |
#include <dlfcn.h> |
#include <dlfcn.h> |
#endif |
#endif |
|
#if defined(_WIN32) |
|
#include <windows.h> |
|
#endif |
#ifdef hpux |
#ifdef hpux |
#include <dl.h> |
#include <dl.h> |
#endif |
#endif |
|
|
|
#ifdef HAS_FFCALL |
|
#include <avcall.h> |
|
#include <callback.h> |
|
#endif |
|
|
|
#ifdef HAS_LIBFFI |
|
#include <ffi.h> |
|
#endif |
|
|
#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 */ |
#define SEEK_SET 0 |
#define SEEK_SET 0 |
#endif |
#endif |
|
|
#define IOR(flag) ((flag)? -512-errno : 0) |
#ifndef HAVE_FSEEKO |
|
#define fseeko fseek |
|
#endif |
|
|
typedef struct F83Name { |
#ifndef HAVE_FTELLO |
struct F83Name *next; /* the link field for old hands */ |
#define ftello ftell |
char countetc; |
|
Char name[0]; |
|
} F83Name; |
|
|
|
/* are macros for setting necessary? */ |
|
#define F83NAME_COUNT(np) ((np)->countetc & 0x1f) |
|
#define F83NAME_SMUDGE(np) (((np)->countetc & 0x40) != 0) |
|
#define F83NAME_IMMEDIATE(np) (((np)->countetc & 0x20) != 0) |
|
|
|
Cell *SP; |
|
Float *FP; |
|
Address UP=NULL; |
|
|
|
#if 0 |
|
/* not used currently */ |
|
int emitcounter; |
|
#endif |
#endif |
#define NULLC '\0' |
|
|
|
char *cstr(Char *from, UCell size, int clear) |
#define NULLC '\0' |
/* return a C-string corresponding to the Forth string ( FROM SIZE ). |
|
the C-string lives until the next call of cstr with CLEAR being true */ |
|
{ |
|
static struct cstr_buffer { |
|
char *buffer; |
|
size_t size; |
|
} *buffers=NULL; |
|
static int nbuffers=0; |
|
static int used=0; |
|
struct cstr_buffer *b; |
|
|
|
if (buffers==NULL) |
|
buffers=malloc(0); |
|
if (clear) |
|
used=0; |
|
if (used>=nbuffers) { |
|
buffers=realloc(buffers,sizeof(struct cstr_buffer)*(used+1)); |
|
buffers[used]=(struct cstr_buffer){malloc(0),0}; |
|
nbuffers=used+1; |
|
} |
|
b=&buffers[used]; |
|
if (size+1 > b->size) { |
|
b->buffer = realloc(b->buffer,size+1); |
|
b->size = size+1; |
|
} |
|
memcpy(b->buffer,from,size); |
|
b->buffer[size]='\0'; |
|
used++; |
|
return b->buffer; |
|
} |
|
|
|
char *tilde_cstr(Char *from, UCell size, int clear) |
#ifdef MEMCMP_AS_SUBROUTINE |
/* like cstr(), but perform tilde expansion on the string */ |
extern int gforth_memcmp(const char * s1, const char * s2, size_t n); |
{ |
#define memcmp(s1,s2,n) gforth_memcmp(s1,s2,n) |
char *s1,*s2; |
#endif |
int s1_len, s2_len; |
|
struct passwd *getpwnam (), *user_entry; |
|
|
|
if (size<1 || from[0]!='~') |
|
return cstr(from, size, clear); |
|
if (size<2 || from[1]=='/') { |
|
s1 = (char *)getenv ("HOME"); |
|
if(s1 == NULL) |
|
s1 = ""; |
|
s2 = from+1; |
|
s2_len = size-1; |
|
} else { |
|
UCell i; |
|
for (i=1; i<size && from[i]!='/'; i++) |
|
; |
|
{ |
|
char user[i]; |
|
memcpy(user,from+1,i-1); |
|
user[i-1]='\0'; |
|
user_entry=getpwnam(user); |
|
} |
|
if (user_entry==NULL) |
|
return cstr(from, size, clear); |
|
s1 = user_entry->pw_dir; |
|
s2 = from+i; |
|
s2_len = size-i; |
|
} |
|
s1_len = strlen(s1); |
|
if (s1_len>1 && s1[s1_len-1]=='/') |
|
s1_len--; |
|
{ |
|
char path[s1_len+s2_len]; |
|
memcpy(path,s1,s1_len); |
|
memcpy(path+s1_len,s2,s2_len); |
|
return cstr(path,s1_len+s2_len,clear); |
|
} |
|
} |
|
|
|
|
|
#define NEWLINE '\n' |
#define NEWLINE '\n' |
|
|
#ifndef HAVE_RINT |
/* These two flags control whether divisions are checked by software. |
#define rint(x) floor((x)+0.5) |
The CHECK_DIVISION_SW is for those cases where the event is a |
|
division by zero or overflow on the C level, and might be reported |
|
by hardware; we might check forr that in autoconf and set the |
|
switch appropriately, but currently don't. The CHECK_DIVISION flag |
|
is for the other cases. */ |
|
#ifdef GFORTH_DEBUGGING |
|
#define CHECK_DIVISION_SW 1 |
|
#define CHECK_DIVISION 1 |
|
#else |
|
#define CHECK_DIVISION_SW 0 |
|
#define CHECK_DIVISION 0 |
#endif |
#endif |
|
|
static char* fileattr[6]={"r","rb","r+","r+b","w","wb"}; |
/* conversion on fetch */ |
|
|
#ifndef O_BINARY |
#define vm_Cell2f(_cell,_x) ((_x)=(Bool)(_cell)) |
#define O_BINARY 0 |
#define vm_Cell2c(_cell,_x) ((_x)=(Char)(_cell)) |
#endif |
#define vm_Cell2n(_cell,_x) ((_x)=(Cell)(_cell)) |
#ifndef O_TEXT |
#define vm_Cell2w(_cell,_x) ((_x)=(Cell)(_cell)) |
#define O_TEXT 0 |
#define vm_Cell2u(_cell,_x) ((_x)=(UCell)(_cell)) |
#endif |
#define vm_Cell2a_(_cell,_x) ((_x)=(Cell *)(_cell)) |
|
#define vm_Cell2c_(_cell,_x) ((_x)=(Char *)(_cell)) |
|
#define vm_Cell2f_(_cell,_x) ((_x)=(Float *)(_cell)) |
|
#define vm_Cell2df_(_cell,_x) ((_x)=(DFloat *)(_cell)) |
|
#define vm_Cell2sf_(_cell,_x) ((_x)=(SFloat *)(_cell)) |
|
#define vm_Cell2xt(_cell,_x) ((_x)=(Xt)(_cell)) |
|
#define vm_Cell2f83name(_cell,_x) ((_x)=(struct F83Name *)(_cell)) |
|
#define vm_Cell2longname(_cell,_x) ((_x)=(struct Longname *)(_cell)) |
|
#define vm_Float2r(_float,_x) (_x=_float) |
|
|
|
/* conversion on store */ |
|
|
|
#define vm_f2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_c2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_n2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_w2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_u2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_a_2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_c_2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_f_2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_df_2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_sf_2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_xt2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_f83name2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_longname2Cell(_x,_cell) ((_cell)=(Cell)(_x)) |
|
#define vm_r2Float(_x,_float) (_float=_x) |
|
|
|
#define vm_Cell2Cell(_x,_y) (_y=_x) |
|
|
static int ufileattr[6]= { |
#ifdef NO_IP |
O_RDONLY|O_TEXT, O_RDONLY|O_BINARY, |
#define IMM_ARG(access,value) (VARIANT(value)) |
O_RDWR |O_TEXT, O_RDWR |O_BINARY, |
#else |
O_WRONLY|O_TEXT, O_WRONLY|O_BINARY }; |
#define IMM_ARG(access,value) (access) |
|
#endif |
|
|
/* 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 |
Line 184 static int ufileattr[6]= {
|
Line 168 static int ufileattr[6]= {
|
#ifndef LPREG |
#ifndef LPREG |
#define LPREG |
#define LPREG |
#endif |
#endif |
|
#ifndef CAREG |
|
#define CAREG |
|
#endif |
#ifndef CFAREG |
#ifndef CFAREG |
#define CFAREG |
#define CFAREG |
#endif |
#endif |
Line 193 static int ufileattr[6]= {
|
Line 180 static int ufileattr[6]= {
|
#ifndef TOSREG |
#ifndef TOSREG |
#define TOSREG |
#define TOSREG |
#endif |
#endif |
|
#ifndef spbREG |
|
#define spbREG |
|
#endif |
|
#ifndef spcREG |
|
#define spcREG |
|
#endif |
|
#ifndef spdREG |
|
#define spdREG |
|
#endif |
|
#ifndef speREG |
|
#define speREG |
|
#endif |
|
#ifndef spfREG |
|
#define spfREG |
|
#endif |
|
#ifndef spgREG |
|
#define spgREG |
|
#endif |
|
#ifndef sphREG |
|
#define sphREG |
|
#endif |
#ifndef FTOSREG |
#ifndef FTOSREG |
#define FTOSREG |
#define FTOSREG |
#endif |
#endif |
Line 201 static int ufileattr[6]= {
|
Line 209 static int ufileattr[6]= {
|
# define CPU_DEP1 0 |
# define CPU_DEP1 0 |
#endif |
#endif |
|
|
/* declare and compute cfa for certain threading variants */ |
/* instructions containing SUPER_END 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 |
#ifdef CFA_NEXT |
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 |
|
to write it, write it after IP points to the next instruction. |
|
Used for profiling. Don't write it in a word containing SET_IP, or |
|
the following block will be counted twice. */ |
|
#ifdef VM_PROFILING |
|
#define SUPER_END vm_count_block(IP) |
#else |
#else |
#define DOCFA Xt cfa; GETCFA(cfa) |
#define SUPER_END |
#endif |
#endif |
|
#define SUPER_CONTINUE |
|
|
Label *engine(Xt *ip0, Cell *sp0, Cell *rp0, Float *fp0, Address lp0) |
#ifdef ASMCOMMENT |
|
/* an individualized asm statement so that (hopefully) gcc's optimizer |
|
does not do cross-jumping */ |
|
#define asmcomment(string) asm(ASMCOMMENT string) |
|
#else |
|
/* we don't know how to do an asm comment, so we just do an empty asm */ |
|
#define asmcomment(string) asm("") |
|
#endif |
|
|
|
#ifdef GFORTH_DEBUGGING |
|
#if DEBUG |
|
#define NAME(string) { saved_ip=ip; asmcomment(string); fprintf(stderr,"%08lx depth=%3ld tos=%016lx: "string"\n",(Cell)ip,sp0+3-sp,sp[0]);} |
|
#else /* !DEBUG */ |
|
#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. */ |
|
#endif /* !DEBUG */ |
|
#elif DEBUG |
|
# define NAME(string) {Cell __depth=sp0+3-sp; int i; fprintf(stderr,"%08lx depth=%3ld: "string,(Cell)ip,sp0+3-sp); for (i=__depth-1; i>0; i--) fprintf(stderr, " $%lx",sp[i]); fprintf(stderr, " $%lx\n",spTOS); } |
|
#else |
|
# define NAME(string) asmcomment(string); |
|
#endif |
|
|
|
#ifdef DEBUG |
|
#define CFA_TO_NAME(__cfa) \ |
|
Cell len, i; \ |
|
char * name = __cfa; \ |
|
for(i=0; i<32; i+=sizeof(Cell)) { \ |
|
len = ((Cell*)name)[-1]; \ |
|
if(len < 0) { \ |
|
len &= 0x1F; \ |
|
if((len+sizeof(Cell)) > i) break; \ |
|
} len = 0; \ |
|
name -= sizeof(Cell); \ |
|
} |
|
#endif |
|
|
|
#ifdef STANDALONE |
|
jmp_buf throw_jmp_buf; |
|
|
|
void throw(int code) |
|
{ |
|
longjmp(throw_jmp_buf,code); /* !! or use siglongjmp ? */ |
|
} |
|
#endif |
|
|
|
#if defined(HAS_FFCALL) || defined(HAS_LIBFFI) |
|
#define SAVE_REGS IF_fpTOS(fp[0]=fpTOS); gforth_SP=sp; gforth_FP=fp; gforth_RP=rp; gforth_LP=lp; |
|
#define REST_REGS sp=gforth_SP; fp=gforth_FP; rp=gforth_RP; lp=gforth_LP; IF_fpTOS(fpTOS=fp[0]); |
|
#endif |
|
|
|
#if !defined(ENGINE) |
|
/* normal engine */ |
|
#define VARIANT(v) (v) |
|
#define JUMP(target) goto I_noop |
|
#define LABEL(name) H_##name: asm(""); I_##name: |
|
#define LABEL3(name) J_##name: asm(""); |
|
|
|
#elif ENGINE==2 |
|
/* variant with padding between VM instructions for finding out |
|
cross-inst jumps (for dynamic code) */ |
|
#define gforth_engine gforth_engine2 |
|
#define VARIANT(v) (v) |
|
#define JUMP(target) goto I_noop |
|
#define LABEL(name) H_##name: SKIP16; I_##name: |
|
/* the SKIP16 after LABEL3 is there, because the ARM gcc may place |
|
some constants after the final branch, and may refer to them from |
|
the code before label3. Since we don't copy the constants, we have |
|
to make sure that such code is recognized as non-relocatable. */ |
|
#define LABEL3(name) J_##name: SKIP16; |
|
|
|
#elif ENGINE==3 |
|
/* variant with different immediate arguments for finding out |
|
immediate arguments (for native code) */ |
|
#define gforth_engine gforth_engine3 |
|
#define VARIANT(v) ((v)^0xffffffff) |
|
#define JUMP(target) goto K_lit |
|
#define LABEL(name) H_##name: asm(""); I_##name: |
|
#define LABEL3(name) J_##name: asm(""); |
|
#else |
|
#error illegal ENGINE value |
|
#endif /* ENGINE */ |
|
|
|
/* the asm(""); is there to get a stop compiled on Itanium */ |
|
#define LABEL2(name) K_##name: asm(""); |
|
|
|
Label *gforth_engine(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 |
*/ |
*/ |
{ |
{ |
|
#ifndef GFORTH_DEBUGGING |
|
register Cell *rp RPREG; |
|
#endif |
|
#ifndef NO_IP |
register Xt *ip IPREG = ip0; |
register Xt *ip IPREG = ip0; |
|
#endif |
register Cell *sp SPREG = sp0; |
register Cell *sp SPREG = sp0; |
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; |
#ifdef CFA_NEXT |
|
register Xt cfa CFAREG; |
register Xt cfa CFAREG; |
#endif |
register Label real_ca CAREG; |
register Address up UPREG = UP; |
#ifdef MORE_VARS |
IF_TOS(register Cell TOS TOSREG;) |
MORE_VARS |
IF_FTOS(register Float FTOS FTOSREG;) |
#endif |
|
#ifdef HAS_FFCALL |
|
av_alist alist; |
|
extern va_alist gforth_clist; |
|
float frv; |
|
int irv; |
|
double drv; |
|
long long llrv; |
|
void * prv; |
|
#endif |
|
#ifdef HAS_LIBFFI |
|
extern void * gforth_ritem; |
|
extern void ** gforth_clist; |
|
extern void ffi_callback(ffi_cif * cif, void * resp, void ** args, Xt * ip); |
|
#endif |
|
register Address up UPREG = gforth_UP; |
|
register Cell MAYBE_UNUSED spTOS TOSREG; |
|
register Cell MAYBE_UNUSED spb spbREG; |
|
register Cell MAYBE_UNUSED spc spcREG; |
|
register Cell MAYBE_UNUSED spd spdREG; |
|
register Cell MAYBE_UNUSED spe speREG; |
|
register Cell MAYBE_UNUSED spf speREG; |
|
register Cell MAYBE_UNUSED spg speREG; |
|
register Cell MAYBE_UNUSED sph speREG; |
|
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[]= { |
|
#define MAX_SYMBOLS (sizeof(routines)/sizeof(routines[0])) |
#else /* !defined(DOUBLY_INDIRECT) */ |
#else /* !defined(DOUBLY_INDIRECT) */ |
static Label symbols[]= { |
static Label symbols[]= { |
|
#define MAX_SYMBOLS (sizeof(symbols)/sizeof(symbols[0])) |
#endif /* !defined(DOUBLY_INDIRECT) */ |
#endif /* !defined(DOUBLY_INDIRECT) */ |
&&docol, |
#define INST_ADDR(name) ((Label)&&I_##name) |
&&docon, |
#include PRIM_LAB_I |
&&dovar, |
#undef INST_ADDR |
&&douser, |
(Label)0, |
&&dodefer, |
#define INST_ADDR(name) ((Label)&&K_##name) |
&&dofield, |
#include PRIM_LAB_I |
&&dodoes, |
#undef INST_ADDR |
/* the following entry is normally unused; |
#define INST_ADDR(name) ((Label)&&J_##name) |
it's there because its index indicates a does-handler */ |
#include PRIM_LAB_I |
CPU_DEP1, |
#undef INST_ADDR |
#include "prim_lab.i" |
(Label)&&after_last, |
0 |
(Label)&&before_goto, |
|
(Label)&&after_goto, |
|
/* just mention the H_ labels, so the SKIP16s are not optimized away */ |
|
#define INST_ADDR(name) ((Label)&&H_##name) |
|
#include PRIM_LAB_I |
|
#undef INST_ADDR |
}; |
}; |
|
#ifdef STANDALONE |
|
#define INST_ADDR(name) ((Label)&&I_##name) |
|
#include "image.i" |
|
#undef INST_ADDR |
|
#endif |
#ifdef CPU_DEP2 |
#ifdef CPU_DEP2 |
CPU_DEP2 |
CPU_DEP2 |
#endif |
#endif |
|
|
|
rp = rp0; |
#ifdef DEBUG |
#ifdef DEBUG |
fprintf(stderr,"ip=%x, sp=%x, rp=%x, fp=%x, lp=%x, up=%x\n", |
fprintf(stderr,"ip=%x, sp=%x, rp=%x, fp=%x, lp=%x, up=%x\n", |
(unsigned)ip,(unsigned)sp,(unsigned)rp, |
(unsigned)ip0,(unsigned)sp,(unsigned)rp, |
(unsigned)fp,(unsigned)lp,(unsigned)up); |
(unsigned)fp,(unsigned)lp,(unsigned)up); |
#endif |
#endif |
|
|
if (ip == NULL) { |
if (ip0 == NULL) { |
#if defined(DOUBLY_INDIRECT) |
#if defined(DOUBLY_INDIRECT) |
#define MAX_SYMBOLS 1000 |
#define CODE_OFFSET (26*sizeof(Cell)) |
|
#define XT_OFFSET (22*sizeof(Cell)) |
int i; |
int i; |
Cell code_offset = offset_image? 11*sizeof(Cell) : 0; |
Cell code_offset = offset_image? CODE_OFFSET : 0; |
|
Cell xt_offset = offset_image? XT_OFFSET : 0; |
|
|
symbols = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+code_offset)+code_offset); |
symbols = (Label *)(malloc(MAX_SYMBOLS*sizeof(Cell)+CODE_OFFSET)+code_offset); |
|
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 %ld primitives\n",(long)MAX_SYMBOLS); |
exit(1); |
exit(1); |
|
} |
|
xts[i] = symbols[i] = &routines[i]; |
} |
} |
symbols[i] = &routines[i]; |
|
} |
|
#endif /* defined(DOUBLY_INDIRECT) */ |
#endif /* defined(DOUBLY_INDIRECT) */ |
return symbols; |
#ifdef STANDALONE |
} |
return image; |
|
|
IF_TOS(TOS = sp[0]); |
|
IF_FTOS(FTOS = fp[0]); |
|
/* prep_terminal(); */ |
|
NEXT_P0; |
|
NEXT; |
|
|
|
#ifdef CPU_DEP3 |
|
CPU_DEP3 |
|
#endif |
|
|
|
docol: |
|
{ |
|
DOCFA; |
|
#ifdef DEBUG |
|
fprintf(stderr,"%08lx: col: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
|
#endif |
|
#ifdef CISC_NEXT |
|
/* this is the simple version */ |
|
*--rp = (Cell)ip; |
|
ip = (Xt *)PFA1(cfa); |
|
NEXT_P0; |
|
NEXT; |
|
#else |
|
/* this one is important, so we help the compiler optimizing |
|
The following version may be better (for scheduling), but probably has |
|
problems with code fields employing calls and delay slots |
|
*/ |
|
{ |
|
DEF_CA |
|
Xt *current_ip = (Xt *)PFA1(cfa); |
|
cfa = *current_ip; |
|
NEXT1_P1; |
|
*--rp = (Cell)ip; |
|
ip = current_ip+1; |
|
NEXT1_P2; |
|
} |
|
#endif |
|
} |
|
|
|
docon: |
|
{ |
|
DOCFA; |
|
#ifdef DEBUG |
|
fprintf(stderr,"%08lx: con: %08lx\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
|
#endif |
|
#ifdef USE_TOS |
|
*sp-- = TOS; |
|
TOS = *(Cell *)PFA1(cfa); |
|
#else |
|
*--sp = *(Cell *)PFA1(cfa); |
|
#endif |
|
} |
|
NEXT_P0; |
|
NEXT; |
|
|
|
dovar: |
|
{ |
|
DOCFA; |
|
#ifdef DEBUG |
|
fprintf(stderr,"%08lx: var: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
|
#endif |
|
#ifdef USE_TOS |
|
*sp-- = TOS; |
|
TOS = (Cell)PFA1(cfa); |
|
#else |
#else |
*--sp = (Cell)PFA1(cfa); |
return symbols; |
#endif |
#endif |
} |
} |
NEXT_P0; |
|
NEXT; |
#if !(defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING)) |
|
sp += STACK_CACHE_DEFAULT-1; |
douser: |
/* some of those registers are dead, but its simpler to initialize them all */ spTOS = sp[0]; |
{ |
spb = sp[-1]; |
DOCFA; |
spc = sp[-2]; |
#ifdef DEBUG |
spd = sp[-3]; |
fprintf(stderr,"%08lx: user: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
spe = sp[-4]; |
|
spf = sp[-5]; |
|
spg = sp[-6]; |
|
sph = sp[-7]; |
#endif |
#endif |
#ifdef USE_TOS |
|
*sp-- = TOS; |
IF_fpTOS(fpTOS = fp[0]); |
TOS = (Cell)(up+*(Cell*)PFA1(cfa)); |
/* prep_terminal(); */ |
|
#ifdef NO_IP |
|
goto *(*(Label *)ip0); |
|
before_goto: |
|
goto *real_ca; |
|
after_goto:; |
#else |
#else |
*--sp = (Cell)(up+*(Cell*)PFA1(cfa)); |
SET_IP(ip); |
|
SUPER_END; /* count the first block, too */ |
|
FIRST_NEXT; |
#endif |
#endif |
} |
|
NEXT_P0; |
|
NEXT; |
|
|
|
dodefer: |
|
{ |
|
DOCFA; |
|
#ifdef DEBUG |
|
fprintf(stderr,"%08lx: defer: %08lx\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
|
#endif |
|
EXEC(*(Xt *)PFA1(cfa)); |
|
} |
|
|
|
dofield: |
#ifdef CPU_DEP3 |
{ |
CPU_DEP3 |
DOCFA; |
|
#ifdef DEBUG |
|
fprintf(stderr,"%08lx: field: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
|
#endif |
#endif |
TOS += *(Cell*)PFA1(cfa); |
|
} |
|
NEXT_P0; |
|
NEXT; |
|
|
|
dodoes: |
#include PRIM_I |
/* this assumes the following structure: |
after_last: return (Label *)0; |
defining-word: |
/*needed only to get the length of the last primitive */ |
|
|
... |
|
DOES> |
|
(possible padding) |
|
possibly handler: jmp dodoes |
|
(possible branch delay slot(s)) |
|
Forth code after DOES> |
|
|
|
defined word: |
|
|
|
cfa: address of or jump to handler OR |
|
address of or jump to dodoes, address of DOES-code |
|
pfa: |
|
|
|
*/ |
|
{ |
|
DOCFA; |
|
|
|
/* fprintf(stderr, "Got CFA %08lx at doescode %08lx/%08lx: does: %08lx\n",cfa,(Cell)ip,(Cell)PFA(cfa),(Cell)DOES_CODE1(cfa));*/ |
|
#ifdef DEBUG |
|
fprintf(stderr,"%08lx/%08lx: does: %08lx\n",(Cell)ip,(Cell)PFA(cfa),(Cell)DOES_CODE1(cfa)); |
|
fflush(stderr); |
|
#endif |
|
*--rp = (Cell)ip; |
|
/* PFA1 might collide with DOES_CODE1 here, so we use PFA */ |
|
ip = DOES_CODE1(cfa); |
|
#ifdef USE_TOS |
|
*sp-- = TOS; |
|
TOS = (Cell)PFA(cfa); |
|
#else |
|
*--sp = (Cell)PFA(cfa); |
|
#endif |
|
/* fprintf(stderr,"TOS = %08lx, IP=%08lx\n", TOS, IP);*/ |
|
} |
|
NEXT_P0; |
|
NEXT; |
|
|
|
#include "prim.i" |
return (Label *)0; |
} |
} |