| 1 : |
anton
|
1.1
|
/* |
| 2 : |
|
|
Copyright 1992 by the ANSI figForth Development Group |
| 3 : |
|
|
*/ |
| 4 : |
|
|
|
| 5 : |
|
|
#include <ctype.h> |
| 6 : |
|
|
#include <stdio.h> |
| 7 : |
|
|
#include <string.h> |
| 8 : |
|
|
#include <math.h> |
| 9 : |
|
|
#include <sys/types.h> |
| 10 : |
|
|
#include <sys/stat.h> |
| 11 : |
|
|
#include <fcntl.h> |
| 12 : |
|
|
#include <assert.h> |
| 13 : |
|
|
#include <stdlib.h> |
| 14 : |
pazsan
|
1.2
|
#include <time.h> |
| 15 : |
pazsan
|
1.6
|
#include <sys/time.h> |
| 16 : |
anton
|
1.1
|
#include "forth.h" |
| 17 : |
|
|
#include "io.h" |
| 18 : |
|
|
|
| 19 : |
anton
|
1.20
|
#ifndef SEEK_SET |
| 20 : |
|
|
/* should be defined in stdio.h, but some systems don't have it */ |
| 21 : |
|
|
#define SEEK_SET 0 |
| 22 : |
|
|
#endif |
| 23 : |
|
|
|
| 24 : |
anton
|
1.1
|
typedef union { |
| 25 : |
|
|
struct { |
| 26 : |
anton
|
1.20
|
#ifdef WORDS_BIGENDIAN |
| 27 : |
anton
|
1.1
|
Cell high; |
| 28 : |
|
|
Cell low; |
| 29 : |
|
|
#else |
| 30 : |
|
|
Cell low; |
| 31 : |
|
|
Cell high; |
| 32 : |
|
|
#endif; |
| 33 : |
|
|
} cells; |
| 34 : |
|
|
DCell dcell; |
| 35 : |
|
|
} Double_Store; |
| 36 : |
|
|
|
| 37 : |
|
|
typedef struct F83Name { |
| 38 : |
|
|
struct F83Name *next; /* the link field for old hands */ |
| 39 : |
|
|
char countetc; |
| 40 : |
|
|
Char name[0]; |
| 41 : |
|
|
} F83Name; |
| 42 : |
|
|
|
| 43 : |
|
|
/* are macros for setting necessary? */ |
| 44 : |
|
|
#define F83NAME_COUNT(np) ((np)->countetc & 0x1f) |
| 45 : |
|
|
#define F83NAME_SMUDGE(np) (((np)->countetc & 0x40) != 0) |
| 46 : |
|
|
#define F83NAME_IMMEDIATE(np) (((np)->countetc & 0x20) != 0) |
| 47 : |
|
|
|
| 48 : |
anton
|
1.14
|
/* NEXT and NEXT1 are split into several parts to help scheduling, |
| 49 : |
|
|
unless CISC_NEXT is defined */ |
| 50 : |
|
|
#ifdef CISC_NEXT |
| 51 : |
|
|
#define NEXT1_P1 |
| 52 : |
|
|
#define NEXT_P1 |
| 53 : |
|
|
#define DEF_CA |
| 54 : |
anton
|
1.1
|
#ifdef DIRECT_THREADED |
| 55 : |
anton
|
1.14
|
#define NEXT1_P2 ({goto *cfa;}) |
| 56 : |
anton
|
1.1
|
#else |
| 57 : |
anton
|
1.14
|
#define NEXT1_P2 ({goto **cfa;}) |
| 58 : |
|
|
#endif /* DIRECT_THREADED */ |
| 59 : |
|
|
#define NEXT_P2 ({cfa = *ip++; NEXT1_P2;}) |
| 60 : |
|
|
#else /* CISC_NEXT */ |
| 61 : |
|
|
#ifdef DIRECT_THREADED |
| 62 : |
|
|
#define NEXT1_P1 |
| 63 : |
|
|
#define NEXT1_P2 ({goto *cfa;}) |
| 64 : |
|
|
#define DEF_CA |
| 65 : |
|
|
#else /* DIRECT_THREADED */ |
| 66 : |
|
|
#define NEXT1_P1 ({ca = *cfa;}) |
| 67 : |
|
|
#define NEXT1_P2 ({goto *ca;}) |
| 68 : |
|
|
#define DEF_CA Label ca; |
| 69 : |
|
|
#endif /* DIRECT_THREADED */ |
| 70 : |
|
|
#define NEXT_P1 ({cfa=*ip++; NEXT1_P1;}) |
| 71 : |
|
|
#define NEXT_P2 NEXT1_P2 |
| 72 : |
|
|
#endif /* CISC_NEXT */ |
| 73 : |
anton
|
1.1
|
|
| 74 : |
anton
|
1.14
|
#define NEXT1 ({DEF_CA NEXT1_P1; NEXT1_P2;}) |
| 75 : |
|
|
#define NEXT ({DEF_CA NEXT_P1; NEXT_P2;}) |
| 76 : |
anton
|
1.1
|
|
| 77 : |
|
|
#ifdef USE_TOS |
| 78 : |
|
|
#define IF_TOS(x) x |
| 79 : |
|
|
#else |
| 80 : |
|
|
#define IF_TOS(x) |
| 81 : |
|
|
#define TOS (sp[0]) |
| 82 : |
|
|
#endif |
| 83 : |
|
|
|
| 84 : |
|
|
#ifdef USE_FTOS |
| 85 : |
|
|
#define IF_FTOS(x) x |
| 86 : |
|
|
#else |
| 87 : |
|
|
#define IF_FTOS(x) |
| 88 : |
|
|
#define FTOS (fp[0]) |
| 89 : |
|
|
#endif |
| 90 : |
|
|
|
| 91 : |
|
|
int emitcounter; |
| 92 : |
|
|
#define NULLC '\0' |
| 93 : |
|
|
|
| 94 : |
anton
|
1.14
|
char *cstr(Char *from, UCell size, int clear) |
| 95 : |
|
|
/* if clear is true, scratch can be reused, otherwise we want more of |
| 96 : |
|
|
the same */ |
| 97 : |
|
|
{ |
| 98 : |
|
|
static char *scratch=NULL; |
| 99 : |
|
|
static unsigned scratchsize=0; |
| 100 : |
|
|
static char *nextscratch; |
| 101 : |
|
|
char *oldnextscratch; |
| 102 : |
|
|
|
| 103 : |
|
|
if (clear) |
| 104 : |
|
|
nextscratch=scratch; |
| 105 : |
|
|
if (scratch==NULL) { |
| 106 : |
|
|
scratch=malloc(size+1); |
| 107 : |
|
|
nextscratch=scratch; |
| 108 : |
|
|
scratchsize=size; |
| 109 : |
|
|
} |
| 110 : |
|
|
else if (nextscratch+size>scratch+scratchsize) { |
| 111 : |
|
|
char *oldscratch=scratch; |
| 112 : |
|
|
scratch = realloc(scratch, (nextscratch-scratch)+size+1); |
| 113 : |
|
|
nextscratch=scratch+(nextscratch-oldscratch); |
| 114 : |
|
|
scratchsize=size; |
| 115 : |
|
|
} |
| 116 : |
|
|
memcpy(nextscratch,from,size); |
| 117 : |
|
|
nextscratch[size]='\0'; |
| 118 : |
|
|
oldnextscratch = nextscratch; |
| 119 : |
|
|
nextscratch += size+1; |
| 120 : |
|
|
return oldnextscratch; |
| 121 : |
|
|
} |
| 122 : |
pazsan
|
1.13
|
|
| 123 : |
anton
|
1.1
|
#define NEWLINE '\n' |
| 124 : |
|
|
|
| 125 : |
pazsan
|
1.21
|
#ifndef HAVE_RINT |
| 126 : |
|
|
#define rint(x) floor((x)+0.5) |
| 127 : |
|
|
#endif |
| 128 : |
pazsan
|
1.13
|
|
| 129 : |
anton
|
1.1
|
static char* fileattr[6]={"r","rb","r+","r+b","w+","w+b"}; |
| 130 : |
pazsan
|
1.6
|
|
| 131 : |
pazsan
|
1.11
|
static Address up0=NULL; |
| 132 : |
|
|
|
| 133 : |
anton
|
1.15
|
/* if machine.h has not defined explicit registers, define them as implicit */ |
| 134 : |
|
|
#ifndef IPREG |
| 135 : |
|
|
#define IPREG |
| 136 : |
|
|
#endif |
| 137 : |
|
|
#ifndef SPREG |
| 138 : |
|
|
#define SPREG |
| 139 : |
|
|
#endif |
| 140 : |
|
|
#ifndef RPREG |
| 141 : |
|
|
#define RPREG |
| 142 : |
|
|
#endif |
| 143 : |
|
|
#ifndef FPREG |
| 144 : |
|
|
#define FPREG |
| 145 : |
|
|
#endif |
| 146 : |
|
|
#ifndef LPREG |
| 147 : |
|
|
#define LPREG |
| 148 : |
|
|
#endif |
| 149 : |
|
|
#ifndef CFAREG |
| 150 : |
|
|
#define CFAREG |
| 151 : |
|
|
#endif |
| 152 : |
|
|
#ifndef UPREG |
| 153 : |
|
|
#define UPREG |
| 154 : |
|
|
#endif |
| 155 : |
|
|
#ifndef TOSREG |
| 156 : |
|
|
#define TOSREG |
| 157 : |
|
|
#endif |
| 158 : |
|
|
#ifndef FTOSREG |
| 159 : |
|
|
#define FTOSREG |
| 160 : |
|
|
#endif |
| 161 : |
pazsan
|
1.13
|
|
| 162 : |
anton
|
1.15
|
Label *engine(Xt *ip0, Cell *sp0, Cell *rp0, Float *fp0, Address lp0) |
| 163 : |
anton
|
1.1
|
/* executes code at ip, if ip!=NULL |
| 164 : |
|
|
returns array of machine code labels (for use in a loader), if ip==NULL |
| 165 : |
|
|
*/ |
| 166 : |
anton
|
1.15
|
{ |
| 167 : |
|
|
register Xt *ip IPREG = ip0; |
| 168 : |
|
|
register Cell *sp SPREG = sp0; |
| 169 : |
|
|
register Cell *rp RPREG = rp0; |
| 170 : |
|
|
register Float *fp FPREG = fp0; |
| 171 : |
|
|
register Address lp LPREG = lp0; |
| 172 : |
|
|
register Xt cfa CFAREG; |
| 173 : |
|
|
register Address up UPREG = up0; |
| 174 : |
|
|
IF_TOS(register Cell TOS TOSREG;) |
| 175 : |
|
|
IF_FTOS(register Float FTOS FTOSREG;) |
| 176 : |
anton
|
1.1
|
static Label symbols[]= { |
| 177 : |
|
|
&&docol, |
| 178 : |
|
|
&&docon, |
| 179 : |
|
|
&&dovar, |
| 180 : |
pazsan
|
1.4
|
&&douser, |
| 181 : |
anton
|
1.12
|
&&dodefer, |
| 182 : |
anton
|
1.1
|
&&dodoes, |
| 183 : |
pazsan
|
1.6
|
&&dodoes, /* dummy for does handler address */ |
| 184 : |
anton
|
1.1
|
#include "prim_labels.i" |
| 185 : |
|
|
}; |
| 186 : |
|
|
#ifdef CPU_DEP |
| 187 : |
|
|
CPU_DEP; |
| 188 : |
|
|
#endif |
| 189 : |
|
|
|
| 190 : |
pazsan
|
1.16
|
#ifdef DEBUG |
| 191 : |
|
|
fprintf(stderr,"ip=%x, sp=%x, rp=%x, fp=%x, lp=%x, up=%x\n", |
| 192 : |
anton
|
1.19
|
(unsigned)ip,(unsigned)sp,(unsigned)rp, |
| 193 : |
|
|
(unsigned)fp,(unsigned)lp,(unsigned)up); |
| 194 : |
pazsan
|
1.16
|
#endif |
| 195 : |
|
|
|
| 196 : |
anton
|
1.1
|
if (ip == NULL) |
| 197 : |
|
|
return symbols; |
| 198 : |
anton
|
1.10
|
|
| 199 : |
anton
|
1.1
|
IF_TOS(TOS = sp[0]); |
| 200 : |
|
|
IF_FTOS(FTOS = fp[0]); |
| 201 : |
|
|
prep_terminal(); |
| 202 : |
|
|
NEXT; |
| 203 : |
|
|
|
| 204 : |
|
|
docol: |
| 205 : |
|
|
#ifdef DEBUG |
| 206 : |
pazsan
|
1.16
|
fprintf(stderr,"%08x: col: %08x\n",(Cell)ip,(Cell)PFA1(cfa)); |
| 207 : |
anton
|
1.1
|
#endif |
| 208 : |
anton
|
1.15
|
#ifdef CISC_NEXT |
| 209 : |
anton
|
1.1
|
/* this is the simple version */ |
| 210 : |
|
|
*--rp = (Cell)ip; |
| 211 : |
|
|
ip = (Xt *)PFA1(cfa); |
| 212 : |
|
|
NEXT; |
| 213 : |
anton
|
1.15
|
#else |
| 214 : |
anton
|
1.1
|
/* this one is important, so we help the compiler optimizing |
| 215 : |
|
|
The following version may be better (for scheduling), but probably has |
| 216 : |
|
|
problems with code fields employing calls and delay slots |
| 217 : |
|
|
*/ |
| 218 : |
|
|
{ |
| 219 : |
pazsan
|
1.4
|
DEF_CA |
| 220 : |
anton
|
1.1
|
Xt *current_ip = (Xt *)PFA1(cfa); |
| 221 : |
|
|
cfa = *current_ip; |
| 222 : |
|
|
NEXT1_P1; |
| 223 : |
|
|
*--rp = (Cell)ip; |
| 224 : |
|
|
ip = current_ip+1; |
| 225 : |
pazsan
|
1.3
|
NEXT1_P2; |
| 226 : |
anton
|
1.1
|
} |
| 227 : |
anton
|
1.15
|
#endif |
| 228 : |
anton
|
1.1
|
|
| 229 : |
|
|
docon: |
| 230 : |
|
|
#ifdef DEBUG |
| 231 : |
pazsan
|
1.16
|
fprintf(stderr,"%08x: con: %08x\n",(Cell)ip,*(Cell*)PFA1(cfa)); |
| 232 : |
anton
|
1.1
|
#endif |
| 233 : |
|
|
#ifdef USE_TOS |
| 234 : |
|
|
*sp-- = TOS; |
| 235 : |
|
|
TOS = *(Cell *)PFA1(cfa); |
| 236 : |
|
|
#else |
| 237 : |
|
|
*--sp = *(Cell *)PFA1(cfa); |
| 238 : |
|
|
#endif |
| 239 : |
|
|
NEXT; |
| 240 : |
|
|
|
| 241 : |
|
|
dovar: |
| 242 : |
|
|
#ifdef DEBUG |
| 243 : |
pazsan
|
1.16
|
fprintf(stderr,"%08x: var: %08x\n",(Cell)ip,(Cell)PFA1(cfa)); |
| 244 : |
anton
|
1.1
|
#endif |
| 245 : |
|
|
#ifdef USE_TOS |
| 246 : |
|
|
*sp-- = TOS; |
| 247 : |
|
|
TOS = (Cell)PFA1(cfa); |
| 248 : |
|
|
#else |
| 249 : |
|
|
*--sp = (Cell)PFA1(cfa); |
| 250 : |
|
|
#endif |
| 251 : |
|
|
NEXT; |
| 252 : |
|
|
|
| 253 : |
|
|
/* !! user? */ |
| 254 : |
|
|
|
| 255 : |
pazsan
|
1.4
|
douser: |
| 256 : |
|
|
#ifdef DEBUG |
| 257 : |
pazsan
|
1.16
|
fprintf(stderr,"%08x: user: %08x\n",(Cell)ip,(Cell)PFA1(cfa)); |
| 258 : |
pazsan
|
1.4
|
#endif |
| 259 : |
|
|
#ifdef USE_TOS |
| 260 : |
|
|
*sp-- = TOS; |
| 261 : |
anton
|
1.5
|
TOS = (Cell)(up+*(Cell*)PFA1(cfa)); |
| 262 : |
pazsan
|
1.4
|
#else |
| 263 : |
anton
|
1.5
|
*--sp = (Cell)(up+*(Cell*)PFA1(cfa)); |
| 264 : |
pazsan
|
1.4
|
#endif |
| 265 : |
|
|
NEXT; |
| 266 : |
|
|
|
| 267 : |
anton
|
1.12
|
dodefer: |
| 268 : |
|
|
#ifdef DEBUG |
| 269 : |
pazsan
|
1.16
|
fprintf(stderr,"%08x: defer: %08x\n",(Cell)ip,(Cell)PFA1(cfa)); |
| 270 : |
anton
|
1.12
|
#endif |
| 271 : |
|
|
cfa = *(Xt *)PFA1(cfa); |
| 272 : |
|
|
NEXT1; |
| 273 : |
|
|
|
| 274 : |
anton
|
1.1
|
dodoes: |
| 275 : |
|
|
/* this assumes the following structure: |
| 276 : |
|
|
defining-word: |
| 277 : |
|
|
|
| 278 : |
|
|
... |
| 279 : |
|
|
DOES> |
| 280 : |
|
|
(possible padding) |
| 281 : |
|
|
possibly handler: jmp dodoes |
| 282 : |
|
|
(possible branch delay slot(s)) |
| 283 : |
|
|
Forth code after DOES> |
| 284 : |
|
|
|
| 285 : |
|
|
defined word: |
| 286 : |
|
|
|
| 287 : |
|
|
cfa: address of or jump to handler OR |
| 288 : |
|
|
address of or jump to dodoes, address of DOES-code |
| 289 : |
|
|
pfa: |
| 290 : |
|
|
|
| 291 : |
|
|
*/ |
| 292 : |
|
|
#ifdef DEBUG |
| 293 : |
anton
|
1.17
|
fprintf(stderr,"%08x/%08x: does: %08x\n",(Cell)ip,(Cell)PFA(cfa),(Cell)DOES_CODE1(cfa)); |
| 294 : |
pazsan
|
1.16
|
fflush(stderr); |
| 295 : |
anton
|
1.1
|
#endif |
| 296 : |
|
|
*--rp = (Cell)ip; |
| 297 : |
|
|
/* PFA1 might collide with DOES_CODE1 here, so we use PFA */ |
| 298 : |
pazsan
|
1.13
|
ip = DOES_CODE1(cfa); |
| 299 : |
anton
|
1.1
|
#ifdef USE_TOS |
| 300 : |
|
|
*sp-- = TOS; |
| 301 : |
|
|
TOS = (Cell)PFA(cfa); |
| 302 : |
|
|
#else |
| 303 : |
|
|
*--sp = (Cell)PFA(cfa); |
| 304 : |
|
|
#endif |
| 305 : |
|
|
NEXT; |
| 306 : |
pazsan
|
1.16
|
|
| 307 : |
anton
|
1.1
|
#include "primitives.i" |
| 308 : |
|
|
} |