version 1.50, 2002/12/19 23:12:07
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version 1.64, 2003/08/15 14:07:04
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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 Free Software Foundation, Inc. |
Copyright (C) 1995,1996,1997,1998,2000,2003 Free Software Foundation, Inc. |
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This file is part of Gforth. |
This file is part of Gforth. |
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#include <dl.h> |
#include <dl.h> |
#endif |
#endif |
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#ifdef HAS_FFCALL |
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#include <avcall.h> |
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#include <callback.h> |
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#endif |
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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 */ |
#define SEEK_SET 0 |
#define SEEK_SET 0 |
#endif |
#endif |
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#define IOR(flag) ((flag)? -512-errno : 0) |
#ifndef HAVE_FSEEKO |
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#define fseeko fseek |
struct F83Name { |
#endif |
struct F83Name *next; /* the link field for old hands */ |
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char countetc; |
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char name[0]; |
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}; |
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#define F83NAME_COUNT(np) ((np)->countetc & 0x1f) |
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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)) |
#ifndef HAVE_FTELLO |
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#define ftello ftell |
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#endif |
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#define NULLC '\0' |
#define NULLC '\0' |
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Line 166 extern int gforth_memcmp(const char * s1
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Line 161 extern int gforth_memcmp(const char * s1
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# define CPU_DEP1 0 |
# define CPU_DEP1 0 |
#endif |
#endif |
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/* instructions containing these must be the last instruction of a |
/* instructions containing SUPER_END must be the last instruction of a |
super-instruction (e.g., branches, EXECUTE, and other instructions |
super-instruction (e.g., branches, EXECUTE, and other instructions |
ending the basic block). Instructions containing SET_IP get this |
ending the basic block). Instructions containing SET_IP get this |
automatically, so you usually don't have to write it. If you have |
automatically, so you usually don't have to write it. If you have |
Line 194 extern int gforth_memcmp(const char * s1
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Line 189 extern int gforth_memcmp(const char * s1
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} |
} |
#endif |
#endif |
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#ifdef HAS_FFCALL |
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#define SAVE_REGS IF_spTOS(sp[0]=spTOS); IF_fpTOS(fp[0]=fpTOS); SP=sp; FP=fp; RP=rp; LP=lp; |
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#define REST_REGS sp=SP; fp=FP; rp=RP; lp=LP; IF_spTOS(spTOS=sp[0]); IF_fpTOS(fpTOS=fp[0]); |
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#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) I_##name: |
#define LABEL(name) J_##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 206 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: asm(".skip 16"); I_##name: |
#define LABEL(name) J_##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 215 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) I_##name: |
#define LABEL(name) J_##name: asm(""); 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: |
#define LABEL2(name) K_##name: |
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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 |
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 241 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 240 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#ifdef MORE_VARS |
#ifdef MORE_VARS |
MORE_VARS |
MORE_VARS |
#endif |
#endif |
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#ifdef HAS_FFCALL |
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av_alist alist; |
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extern va_alist clist; |
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float frv; |
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int irv; |
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double drv; |
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long long llrv; |
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void * prv; |
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#endif |
register Address up UPREG = UP; |
register Address up UPREG = UP; |
IF_spTOS(register Cell spTOS TOSREG;) |
IF_spTOS(register Cell spTOS TOSREG;) |
IF_fpTOS(register Float fpTOS FTOSREG;) |
IF_fpTOS(register Float fpTOS FTOSREG;) |
Line 262 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 270 Label *engine(Xt *ip0, Cell *sp0, Cell *
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/* the following entry is normally unused; |
/* the following entry is normally unused; |
it is there because its index indicates a does-handler */ |
it is there because its index indicates a does-handler */ |
CPU_DEP1, |
CPU_DEP1, |
#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)&&after_last, |
(Label)&&after_last, |
(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 |
#ifdef IN_ENGINE2 |
#define INST_ADDR(name) ((Label)&&J_##name) |
#define INST_ADDR(name) (Label)&&J_##name |
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#include "prim_lab.i" |
#include "prim_lab.i" |
#undef INST_ADDR |
#undef INST_ADDR |
#endif |
(Label)&&after_last |
}; |
}; |
#ifdef CPU_DEP2 |
#ifdef CPU_DEP2 |
CPU_DEP2 |
CPU_DEP2 |
Line 301 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 308 Label *engine(Xt *ip0, Cell *sp0, Cell *
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xts[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]; |
xts[i] = symbols[i] = &routines[i]; |