version 1.65, 2003/08/20 09:23:46
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version 1.82, 2005/08/04 08:16:50
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/* Gforth virtual machine (aka inner interpreter) |
/* Gforth virtual machine (aka inner interpreter) |
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Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc. |
Copyright (C) 1995,1996,1997,1998,2000,2003,2004 Free Software Foundation, Inc. |
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This file is part of Gforth. |
This file is part of Gforth. |
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
*/ |
*/ |
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#if defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING) |
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#define USE_NO_TOS |
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#else |
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#define USE_TOS |
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#endif |
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#define USE_NO_FTOS |
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#include "config.h" |
#include "config.h" |
#include "forth.h" |
#include "forth.h" |
#include <ctype.h> |
#include <ctype.h> |
Line 144 extern int gforth_memcmp(const char * s1
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Line 151 extern int gforth_memcmp(const char * s1
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#ifndef LPREG |
#ifndef LPREG |
#define LPREG |
#define LPREG |
#endif |
#endif |
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#ifndef CAREG |
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#define CAREG |
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#endif |
#ifndef CFAREG |
#ifndef CFAREG |
#define CFAREG |
#define CFAREG |
#endif |
#endif |
Line 153 extern int gforth_memcmp(const char * s1
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Line 163 extern int gforth_memcmp(const char * s1
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#ifndef TOSREG |
#ifndef TOSREG |
#define TOSREG |
#define TOSREG |
#endif |
#endif |
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#ifndef spbREG |
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#define spbREG |
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#endif |
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#ifndef spcREG |
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#define spcREG |
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#endif |
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#ifndef spdREG |
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#define spdREG |
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#endif |
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#ifndef speREG |
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#define speREG |
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#endif |
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#ifndef spfREG |
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#define spfREG |
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#endif |
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#ifndef spgREG |
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#define spgREG |
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#endif |
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#ifndef sphREG |
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#define sphREG |
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#endif |
#ifndef FTOSREG |
#ifndef FTOSREG |
#define FTOSREG |
#define FTOSREG |
#endif |
#endif |
Line 175 extern int gforth_memcmp(const char * s1
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Line 206 extern int gforth_memcmp(const char * s1
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#endif |
#endif |
#define SUPER_CONTINUE |
#define SUPER_CONTINUE |
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#ifdef GFORTH_DEBUGGING |
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#if DEBUG |
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#define NAME(string) { saved_ip=ip; asm("# "string); fprintf(stderr,"%08lx depth=%3ld: "string"\n",(Cell)ip,sp0+3-sp);} |
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#else /* !DEBUG */ |
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#define NAME(string) { saved_ip=ip; asm(""); } |
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/* the asm here is to avoid reordering of following stuff above the |
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assignment; this is an old-style asm (no operands), and therefore |
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is treated like "asm volatile ..."; i.e., it prevents most |
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reorderings across itself. We want the assignment above first, |
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because the stack loads may already cause a stack underflow. */ |
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#endif /* !DEBUG */ |
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#elif DEBUG |
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# 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); } |
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#else |
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# define NAME(string) asm("# "string); |
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#endif |
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#ifdef DEBUG |
#ifdef DEBUG |
#define CFA_TO_NAME(__cfa) \ |
#define CFA_TO_NAME(__cfa) \ |
Cell len, i; \ |
Cell len, i; \ |
Line 190 extern int gforth_memcmp(const char * s1
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Line 238 extern int gforth_memcmp(const char * s1
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#endif |
#endif |
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#ifdef HAS_FFCALL |
#ifdef HAS_FFCALL |
#define SAVE_REGS IF_spTOS(sp[0]=spTOS); IF_fpTOS(fp[0]=fpTOS); SP=sp; FP=fp; RP=rp; LP=lp; |
#define SAVE_REGS IF_fpTOS(fp[0]=fpTOS); SP=sp; FP=fp; RP=rp; LP=lp; |
#define REST_REGS sp=SP; fp=FP; rp=RP; lp=LP; IF_spTOS(spTOS=sp[0]); IF_fpTOS(fpTOS=fp[0]); |
#define REST_REGS sp=SP; fp=FP; rp=RP; lp=LP; IF_fpTOS(fpTOS=fp[0]); |
#endif |
#endif |
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#if !defined(ENGINE) |
#if !defined(ENGINE) |
/* normal engine */ |
/* normal engine */ |
#define VARIANT(v) (v) |
#define VARIANT(v) (v) |
#define JUMP(target) goto I_noop |
#define JUMP(target) goto I_noop |
#define LABEL(name) J_##name: asm(""); I_##name: |
#define LABEL(name) H_##name: asm(""); I_##name: |
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#elif ENGINE==2 |
#elif ENGINE==2 |
/* variant with padding between VM instructions for finding out |
/* variant with padding between VM instructions for finding out |
Line 206 extern int gforth_memcmp(const char * s1
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Line 254 extern int gforth_memcmp(const char * s1
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#define engine engine2 |
#define engine engine2 |
#define VARIANT(v) (v) |
#define VARIANT(v) (v) |
#define JUMP(target) goto I_noop |
#define JUMP(target) goto I_noop |
#define LABEL(name) J_##name: SKIP16; I_##name: |
#define LABEL(name) H_##name: SKIP16; I_##name: |
#define IN_ENGINE2 |
#define IN_ENGINE2 |
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#elif ENGINE==3 |
#elif ENGINE==3 |
Line 215 extern int gforth_memcmp(const char * s1
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Line 263 extern int gforth_memcmp(const char * s1
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#define engine engine3 |
#define engine engine3 |
#define VARIANT(v) ((v)^0xffffffff) |
#define VARIANT(v) ((v)^0xffffffff) |
#define JUMP(target) goto K_lit |
#define JUMP(target) goto K_lit |
#define LABEL(name) J_##name: asm(""); I_##name: |
#define LABEL(name) H_##name: I_##name: |
#else |
#else |
#error illegal ENGINE value |
#error illegal ENGINE value |
#endif /* ENGINE */ |
#endif /* ENGINE */ |
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#define LABEL2(name) K_##name: |
/* the asm(""); is there to get a stop compiled on Itanium */ |
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#define LABEL2(name) K_##name: asm(""); |
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#define LABEL3(name) J_##name: asm(""); |
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Label *engine(Xt *ip0, Cell *sp0, Cell *rp0, Float *fp0, Address lp0) |
Label *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 |
Line 237 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 287 Label *engine(Xt *ip0, Cell *sp0, Cell *
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register Float *fp FPREG = fp0; |
register Float *fp FPREG = fp0; |
register Address lp LPREG = lp0; |
register Address lp LPREG = lp0; |
register Xt cfa CFAREG; |
register Xt cfa CFAREG; |
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register Label real_ca CAREG; |
#ifdef MORE_VARS |
#ifdef MORE_VARS |
MORE_VARS |
MORE_VARS |
#endif |
#endif |
Line 250 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 301 Label *engine(Xt *ip0, Cell *sp0, Cell *
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void * prv; |
void * prv; |
#endif |
#endif |
register Address up UPREG = UP; |
register Address up UPREG = UP; |
IF_spTOS(register Cell spTOS TOSREG;) |
register Cell MAYBE_UNUSED spTOS TOSREG; |
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register Cell MAYBE_UNUSED spb spbREG; |
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register Cell MAYBE_UNUSED spc spcREG; |
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register Cell MAYBE_UNUSED spd spdREG; |
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register Cell MAYBE_UNUSED spe speREG; |
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register Cell MAYBE_UNUSED spf speREG; |
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register Cell MAYBE_UNUSED spg speREG; |
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register Cell MAYBE_UNUSED sph speREG; |
IF_fpTOS(register Float fpTOS FTOSREG;) |
IF_fpTOS(register Float fpTOS FTOSREG;) |
#if defined(DOUBLY_INDIRECT) |
#if defined(DOUBLY_INDIRECT) |
static Label *symbols; |
static Label *symbols; |
Line 261 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 319 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#define MAX_SYMBOLS (sizeof(symbols)/sizeof(symbols[0])) |
#define MAX_SYMBOLS (sizeof(symbols)/sizeof(symbols[0])) |
#endif /* !defined(DOUBLY_INDIRECT) */ |
#endif /* !defined(DOUBLY_INDIRECT) */ |
#define INST_ADDR(name) ((Label)&&I_##name) |
#define INST_ADDR(name) ((Label)&&I_##name) |
#include "prim_lab.i" |
#include PRIM_LAB_I |
#undef INST_ADDR |
#undef INST_ADDR |
(Label)0, |
(Label)0, |
#define INST_ADDR(name) ((Label)&&K_##name) |
#define INST_ADDR(name) ((Label)&&K_##name) |
#include "prim_lab.i" |
#include PRIM_LAB_I |
#undef INST_ADDR |
#undef INST_ADDR |
#define INST_ADDR(name) ((Label)&&J_##name) |
#define INST_ADDR(name) ((Label)&&J_##name) |
#include "prim_lab.i" |
#include PRIM_LAB_I |
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#undef INST_ADDR |
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(Label)&&after_last, |
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(Label)&&before_goto, |
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(Label)&&after_goto, |
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/* just mention the H_ labels, so the SKIP16s are not optimized away */ |
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#define INST_ADDR(name) ((Label)&&H_##name) |
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#include PRIM_LAB_I |
#undef INST_ADDR |
#undef INST_ADDR |
(Label)&&after_last |
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}; |
}; |
#ifdef CPU_DEP2 |
#ifdef CPU_DEP2 |
CPU_DEP2 |
CPU_DEP2 |
Line 306 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 370 Label *engine(Xt *ip0, Cell *sp0, Cell *
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return symbols; |
return symbols; |
} |
} |
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IF_spTOS(spTOS = sp[0]); |
#if !(defined(GFORTH_DEBUGGING) || defined(INDIRECT_THREADED) || defined(DOUBLY_INDIRECT) || defined(VM_PROFILING)) |
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sp += STACK_CACHE_DEFAULT-1; |
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/* some of those registers are dead, but its simpler to initialize them all */ spTOS = sp[0]; |
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spb = sp[-1]; |
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spc = sp[-2]; |
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spd = sp[-3]; |
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spe = sp[-4]; |
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spf = sp[-5]; |
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spg = sp[-6]; |
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sph = sp[-7]; |
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#endif |
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IF_fpTOS(fpTOS = fp[0]); |
IF_fpTOS(fpTOS = fp[0]); |
/* prep_terminal(); */ |
/* prep_terminal(); */ |
#ifdef NO_IP |
#ifdef NO_IP |
goto *(*(Label *)ip0); |
goto *(*(Label *)ip0); |
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before_goto: |
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goto *real_ca; |
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after_goto:; |
#else |
#else |
SET_IP(ip); |
SET_IP(ip); |
SUPER_END; /* count the first block, too */ |
SUPER_END; /* count the first block, too */ |
NEXT; |
FIRST_NEXT; |
#endif |
#endif |
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#ifdef CPU_DEP3 |
#ifdef CPU_DEP3 |
CPU_DEP3 |
CPU_DEP3 |
#endif |
#endif |
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#include "prim.i" |
#include PRIM_I |
after_last: return (Label *)0; |
after_last: return (Label *)0; |
/*needed only to get the length of the last primitive */ |
/*needed only to get the length of the last primitive */ |
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return (Label *)0; |
} |
} |