version 1.61, 2003/03/09 15:17:03
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version 1.70, 2003/10/16 18:48:03
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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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#define USE_NO_TOS |
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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> |
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Line 62
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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 |
Line 148 extern int gforth_memcmp(const char * s1
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Line 156 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 spaREG |
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#define spaREG |
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#endif |
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#ifndef spbREG |
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#define spbREG |
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#endif |
#ifndef FTOSREG |
#ifndef FTOSREG |
#define FTOSREG |
#define FTOSREG |
#endif |
#endif |
Line 156 extern int gforth_memcmp(const char * s1
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Line 170 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 170 extern int gforth_memcmp(const char * s1
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Line 184 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(""); 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) fprintf(stderr,"%08lx depth=%3ld: "string"\n",(Cell)ip,sp0+3-sp); |
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#else |
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# define NAME(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 184 extern int gforth_memcmp(const char * s1
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Line 215 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) |
Line 210 extern int gforth_memcmp(const char * s1
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Line 246 extern int gforth_memcmp(const char * s1
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#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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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 231 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 267 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;) |
register Cell MAYBE_UNUSED spa TOSREG; |
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register Cell MAYBE_UNUSED spb spaREG; |
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register Cell MAYBE_UNUSED spc spbREG; |
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 242 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 289 Label *engine(Xt *ip0, Cell *sp0, Cell *
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static Label symbols[]= { |
static Label symbols[]= { |
#define MAX_SYMBOLS (sizeof(symbols)/sizeof(symbols[0])) |
#define MAX_SYMBOLS (sizeof(symbols)/sizeof(symbols[0])) |
#endif /* !defined(DOUBLY_INDIRECT) */ |
#endif /* !defined(DOUBLY_INDIRECT) */ |
(Label)&&docol, |
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(Label)&&docon, |
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(Label)&&dovar, |
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(Label)&&douser, |
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(Label)&&dodefer, |
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(Label)&&dofield, |
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(Label)&&dodoes, |
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/* the following entry is normally unused; |
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it is there because its index indicates a does-handler */ |
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CPU_DEP1, |
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#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, |
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(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" |
Line 263 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 299 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#define INST_ADDR(name) ((Label)&&J_##name) |
#define INST_ADDR(name) ((Label)&&J_##name) |
#include "prim_lab.i" |
#include "prim_lab.i" |
#undef INST_ADDR |
#undef INST_ADDR |
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(Label)&&after_last |
}; |
}; |
#ifdef CPU_DEP2 |
#ifdef CPU_DEP2 |
CPU_DEP2 |
CPU_DEP2 |
Line 312 Label *engine(Xt *ip0, Cell *sp0, Cell *
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Line 349 Label *engine(Xt *ip0, Cell *sp0, Cell *
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#ifdef CPU_DEP3 |
#ifdef CPU_DEP3 |
CPU_DEP3 |
CPU_DEP3 |
#endif |
#endif |
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docol: |
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{ |
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#ifdef NO_IP |
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*--rp = next_code; |
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goto **(Label *)PFA1(cfa); |
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#else |
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#ifdef DEBUG |
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{ |
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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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} |
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#endif |
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#ifdef CISC_NEXT |
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/* this is the simple version */ |
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*--rp = (Cell)ip; |
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SET_IP((Xt *)PFA1(cfa)); |
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SUPER_END; |
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NEXT; |
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#else |
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/* this one is important, so we help the compiler optimizing */ |
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{ |
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DEF_CA |
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rp[-1] = (Cell)ip; |
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SET_IP((Xt *)PFA1(cfa)); |
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SUPER_END; |
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NEXT_P1; |
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rp--; |
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NEXT_P2; |
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} |
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#endif |
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#endif |
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} |
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docon: |
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{ |
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#ifdef DEBUG |
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fprintf(stderr,"%08lx: con: %08lx\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
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#endif |
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#ifdef USE_TOS |
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*sp-- = spTOS; |
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spTOS = *(Cell *)PFA1(cfa); |
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#else |
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*--sp = *(Cell *)PFA1(cfa); |
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#endif |
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} |
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#ifdef NO_IP |
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goto *next_code; |
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#else |
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NEXT_P0; |
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NEXT; |
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#endif |
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dovar: |
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{ |
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#ifdef DEBUG |
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fprintf(stderr,"%08lx: var: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
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#endif |
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#ifdef USE_TOS |
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*sp-- = spTOS; |
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spTOS = (Cell)PFA1(cfa); |
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#else |
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*--sp = (Cell)PFA1(cfa); |
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#endif |
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} |
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#ifdef NO_IP |
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goto *next_code; |
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#else |
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NEXT_P0; |
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NEXT; |
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#endif |
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douser: |
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{ |
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#ifdef DEBUG |
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fprintf(stderr,"%08lx: user: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
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#endif |
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#ifdef USE_TOS |
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*sp-- = spTOS; |
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spTOS = (Cell)(up+*(Cell*)PFA1(cfa)); |
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#else |
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*--sp = (Cell)(up+*(Cell*)PFA1(cfa)); |
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#endif |
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} |
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#ifdef NO_IP |
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goto *next_code; |
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#else |
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NEXT_P0; |
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NEXT; |
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#endif |
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dodefer: |
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{ |
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#ifdef DEBUG |
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fprintf(stderr,"%08lx: defer: %08lx\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
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#endif |
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SUPER_END; |
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EXEC(*(Xt *)PFA1(cfa)); |
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} |
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dofield: |
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{ |
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#ifdef DEBUG |
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fprintf(stderr,"%08lx: field: %08lx\n",(Cell)ip,(Cell)PFA1(cfa)); |
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#endif |
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spTOS += *(Cell*)PFA1(cfa); |
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} |
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#ifdef NO_IP |
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goto *next_code; |
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#else |
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NEXT_P0; |
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NEXT; |
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#endif |
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dodoes: |
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/* this assumes the following structure: |
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defining-word: |
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... |
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DOES> |
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(possible padding) |
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possibly handler: jmp dodoes |
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(possible branch delay slot(s)) |
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Forth code after DOES> |
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defined word: |
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cfa: address of or jump to handler OR |
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address of or jump to dodoes, address of DOES-code |
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pfa: |
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*/ |
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#ifdef NO_IP |
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*--rp = next_code; |
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IF_spTOS(spTOS = sp[0]); |
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sp--; |
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spTOS = (Cell)PFA(cfa); |
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goto **(Label *)DOES_CODE1(cfa); |
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#else |
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{ |
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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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#ifdef DEBUG |
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fprintf(stderr,"%08lx/%08lx: does: %08lx\n",(Cell)ip,(Cell)PFA(cfa),(Cell)DOES_CODE1(cfa)); |
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fflush(stderr); |
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#endif |
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*--rp = (Cell)ip; |
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/* PFA1 might collide with DOES_CODE1 here, so we use PFA */ |
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#ifdef USE_TOS |
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*sp-- = spTOS; |
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spTOS = (Cell)PFA(cfa); |
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#else |
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*--sp = (Cell)PFA(cfa); |
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#endif |
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SET_IP(DOES_CODE1(cfa)); |
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SUPER_END; |
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/* fprintf(stderr,"TOS = %08lx, IP=%08lx\n", spTOS, IP);*/ |
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} |
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NEXT; |
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#endif |
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#include "prim.i" |
#include "prim.i" |
after_last: return (Label *)0; |
after_last: return (Label *)0; |