output/outieee.c

   1 /* ----------------------------------------------------------------------- *
   2  *
   3  *   Copyright 1996-2016 The NASM Authors - All Rights Reserved
   4  *   See the file AUTHORS included with the NASM distribution for
   5  *   the specific copyright holders.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following
   9  *   conditions are met:
  10  *
  11  *   * Redistributions of source code must retain the above copyright
  12  *     notice, this list of conditions and the following disclaimer.
  13  *   * Redistributions in binary form must reproduce the above
  14  *     copyright notice, this list of conditions and the following
  15  *     disclaimer in the documentation and/or other materials provided
  16  *     with the distribution.
  17  *
  18  *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  19  *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  20  *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  21  *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  22  *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23  *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  25  *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  26  *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  29  *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  30  *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  * ----------------------------------------------------------------------- */
  33
  34 /*
  35  * outieee.c    output routines for the Netwide Assembler to produce
  36  *              IEEE-std object files
  37  */
  38
  39 /* notes: I have tried to make this correspond to the IEEE version
  40  * of the standard, specifically the primary ASCII version.  It should
  41  * be trivial to create the binary version given this source (which is
  42  * one of MANY things that have to be done to make this correspond to
  43  * the hp-microtek version of the standard).
  44  *
  45  * 16-bit support is assumed to use 24-bit addresses
  46  * The linker can sort out segmentation-specific stuff
  47  * if it keeps track of externals
  48  * in terms of being relative to section bases
  49  *
  50  * A non-standard variable type, the 'Yn' variable, has been introduced.
  51  * Basically it is a reference to extern 'n'- denoting the low limit
  52  * (L-variable) of the section that extern 'n' is defined in.  Like the
  53  * x variable, there may be no explicit assignment to it, it is derived
  54  * from the public definition corresponding to the extern name.  This
  55  * is required because the one thing the mufom guys forgot to do well was
  56  * take into account segmented architectures.
  57  *
  58  * I use comment classes for various things and these are undefined by
  59  * the standard.
  60  *
  61  * Debug info should be considered totally non-standard (local labels are
  62  * standard but linenum records are not covered by the standard.
  63  * Type defs have the standard format but absolute meanings for ordinal
  64  * types are not covered by the standard.)
  65  *
  66  * David Lindauer, LADsoft
  67  */
  68 #include "compiler.h"
  69
  70 #include <stdio.h>
  71 #include <stdlib.h>
  72 #include <string.h>
  73 #include <time.h>
  74 #include <stdarg.h>             /* Note: we need the ANSI version of stdarg.h */
  75 #include <ctype.h>
  76
  77 #include "nasm.h"
  78 #include "nasmlib.h"
  79 #include "error.h"
  80 #include "ver.h"
  81
  82 #include "outform.h"
  83 #include "outlib.h"
  84
  85 #ifdef OF_IEEE
  86
  87 #define ARRAY_BOT 0x1
  88
  89 static char ieee_infile[FILENAME_MAX];
  90 static int ieee_uppercase;
  91
  92 static bool any_segs;
  93 static int arrindex;
  94
  95 #define HUNKSIZE 1024           /* Size of the data hunk */
  96 #define EXT_BLKSIZ 512
  97 #define LDPERLINE 32            /* bytes per line in output */
  98
  99 struct ieeeSection;
 100
 101 struct LineNumber {
 102     struct LineNumber *next;
 103     struct ieeeSection *segment;
 104     int32_t offset;
 105     int32_t lineno;
 106 };
 107
 108 static struct FileName {
 109     struct FileName *next;
 110     char *name;
 111     int32_t index;
 112 } *fnhead, **fntail;
 113
 114 static struct Array {
 115     struct Array *next;
 116     unsigned size;
 117     int basetype;
 118 } *arrhead, **arrtail;
 119
 120 static struct ieeePublic {
 121     struct ieeePublic *next;
 122     char *name;
 123     int32_t offset;
 124     int32_t segment;               /* only if it's far-absolute */
 125     int32_t index;
 126     int type;                   /* for debug purposes */
 127 } *fpubhead, **fpubtail, *last_defined;
 128
 129 static struct ieeeExternal {
 130     struct ieeeExternal *next;
 131     char *name;
 132     int32_t commonsize;
 133 } *exthead, **exttail;
 134
 135 static int externals;
 136
 137 static struct ExtBack {
 138     struct ExtBack *next;
 139     int index[EXT_BLKSIZ];
 140 } *ebhead, **ebtail;
 141
 142 /* NOTE: the first segment MUST be the lineno segment */
 143 static struct ieeeSection {
 144     struct ieeeSection *next;
 145     char *name;
 146     struct ieeeObjData *data, *datacurr;
 147     struct ieeeFixupp *fptr, *flptr;
 148     int32_t index;                 /* the NASM segment id */
 149     int32_t ieee_index;            /* the OBJ-file segment index */
 150     int32_t currentpos;
 151     int32_t align;                 /* can be SEG_ABS + absolute addr */
 152     int32_t startpos;
 153     int32_t use32;                 /* is this segment 32-bit? */
 154     struct ieeePublic *pubhead, **pubtail, *lochead, **loctail;
 155     enum {
 156         CMB_PRIVATE = 0,
 157         CMB_PUBLIC = 2,
 158         CMB_COMMON = 6
 159     } combine;
 160 } *seghead, **segtail, *ieee_seg_needs_update;
 161
 162 struct ieeeObjData {
 163     struct ieeeObjData *next;
 164     uint8_t data[HUNKSIZE];
 165 };
 166
 167 struct ieeeFixupp {
 168     struct ieeeFixupp *next;
 169     enum {
 170         FT_SEG = 0,
 171         FT_REL = 1,
 172         FT_OFS = 2,
 173         FT_EXT = 3,
 174         FT_WRT = 4,
 175         FT_EXTREL = 5,
 176         FT_EXTWRT = 6,
 177         FT_EXTSEG = 7
 178     } ftype;
 179     int16_t size;
 180     int32_t id1;
 181     int32_t id2;
 182     int32_t offset;
 183     int32_t addend;
 184 };
 185
 186 static int32_t ieee_entry_seg, ieee_entry_ofs;
 187 static int checksum;
 188
 189 extern const struct ofmt of_ieee;
 190 static const struct dfmt ladsoft_debug_form;
 191
 192 static void ieee_data_new(struct ieeeSection *);
 193 static void ieee_write_fixup(int32_t, int32_t, struct ieeeSection *,
 194                              int, uint64_t, int32_t);
 195 static void ieee_install_fixup(struct ieeeSection *, struct ieeeFixupp *);
 196 static int32_t ieee_segment(char *, int, int *);
 197 static void ieee_write_file(void);
 198 static void ieee_write_byte(struct ieeeSection *, int);
 199 static void ieee_write_word(struct ieeeSection *, int);
 200 static void ieee_write_dword(struct ieeeSection *, int32_t);
 201 static void ieee_putascii(char *, ...);
 202 static void ieee_putcs(int);
 203 static int32_t ieee_putld(int32_t, int32_t, uint8_t *);
 204 static int32_t ieee_putlr(struct ieeeFixupp *);
 205 static void ieee_unqualified_name(char *, char *);
 206
 207 /*
 208  * pup init
 209  */
 210 static void ieee_init(void)
 211 {
 212     strlcpy(ieee_infile, inname, sizeof(ieee_infile));
 213     any_segs = false;
 214     fpubhead = NULL;
 215     fpubtail = &fpubhead;
 216     exthead = NULL;
 217     exttail = &exthead;
 218     externals = 1;
 219     ebhead = NULL;
 220     ebtail = &ebhead;
 221     seghead = ieee_seg_needs_update = NULL;
 222     segtail = &seghead;
 223     ieee_entry_seg = NO_SEG;
 224     ieee_uppercase = false;
 225     checksum = 0;
 226 }
 227
 228 /*
 229  * Rundown
 230  */
 231 static void ieee_cleanup(void)
 232 {
 233     ieee_write_file();
 234     dfmt->cleanup();
 235     while (seghead) {
 236         struct ieeeSection *segtmp = seghead;
 237         seghead = seghead->next;
 238         while (segtmp->pubhead) {
 239             struct ieeePublic *pubtmp = segtmp->pubhead;
 240             segtmp->pubhead = pubtmp->next;
 241             nasm_free(pubtmp);
 242         }
 243         while (segtmp->fptr) {
 244             struct ieeeFixupp *fixtmp = segtmp->fptr;
 245             segtmp->fptr = fixtmp->next;
 246             nasm_free(fixtmp);
 247         }
 248         while (segtmp->data) {
 249             struct ieeeObjData *dattmp = segtmp->data;
 250             segtmp->data = dattmp->next;
 251             nasm_free(dattmp);
 252         }
 253         nasm_free(segtmp);
 254     }
 255     while (fpubhead) {
 256         struct ieeePublic *pubtmp = fpubhead;
 257         fpubhead = fpubhead->next;
 258         nasm_free(pubtmp);
 259     }
 260     while (exthead) {
 261         struct ieeeExternal *exttmp = exthead;
 262         exthead = exthead->next;
 263         nasm_free(exttmp);
 264     }
 265     while (ebhead) {
 266         struct ExtBack *ebtmp = ebhead;
 267         ebhead = ebhead->next;
 268         nasm_free(ebtmp);
 269     }
 270 }
 271
 272 /*
 273  * callback for labels
 274  */
 275 static void ieee_deflabel(char *name, int32_t segment,
 276                           int64_t offset, int is_global, char *special)
 277 {
 278     /*
 279      * We have three cases:
 280      *
 281      * (i) `segment' is a segment-base. If so, set the name field
 282      * for the segment structure it refers to, and then
 283      * return.
 284      *
 285      * (ii) `segment' is one of our segments, or a SEG_ABS segment.
 286      * Save the label position for later output of a PUBDEF record.
 287      *
 288      *
 289      * (iii) `segment' is not one of our segments. Save the label
 290      * position for later output of an EXTDEF.
 291      */
 292     struct ieeeExternal *ext;
 293     struct ExtBack *eb;
 294     struct ieeeSection *seg;
 295     int i;
 296
 297     if (special) {
 298         nasm_error(ERR_NONFATAL, "unrecognised symbol type `%s'", special);
 299     }
 300     /*
 301      * First check for the double-period, signifying something
 302      * unusual.
 303      */
 304     if (name[0] == '.' && name[1] == '.' && name[2] != '@') {
 305         if (!strcmp(name, "..start")) {
 306             ieee_entry_seg = segment;
 307             ieee_entry_ofs = offset;
 308         }
 309         return;
 310     }
 311
 312     /*
 313      * Case (i):
 314      */
 315     if (ieee_seg_needs_update) {
 316         ieee_seg_needs_update->name = name;
 317         return;
 318     }
 319     if (segment < SEG_ABS && segment != NO_SEG && segment % 2)
 320         return;
 321
 322     /*
 323      * case (ii)
 324      */
 325     if (segment >= SEG_ABS) {
 326         /*
 327          * SEG_ABS subcase of (ii).
 328          */
 329         if (is_global) {
 330             struct ieeePublic *pub;
 331
 332             pub = *fpubtail = nasm_malloc(sizeof(*pub));
 333             fpubtail = &pub->next;
 334             pub->next = NULL;
 335             pub->name = name;
 336             pub->offset = offset;
 337             pub->segment = segment & ~SEG_ABS;
 338         }
 339         return;
 340     }
 341
 342     for (seg = seghead; seg && is_global; seg = seg->next)
 343         if (seg->index == segment) {
 344             struct ieeePublic *pub;
 345
 346             last_defined = pub = *seg->pubtail = nasm_malloc(sizeof(*pub));
 347             seg->pubtail = &pub->next;
 348             pub->next = NULL;
 349             pub->name = name;
 350             pub->offset = offset;
 351             pub->index = seg->ieee_index;
 352             pub->segment = -1;
 353             return;
 354         }
 355
 356     /*
 357      * Case (iii).
 358      */
 359     if (is_global) {
 360         ext = *exttail = nasm_malloc(sizeof(*ext));
 361         ext->next = NULL;
 362         exttail = &ext->next;
 363         ext->name = name;
 364         if (is_global == 2)
 365             ext->commonsize = offset;
 366         else
 367             ext->commonsize = 0;
 368         i = segment / 2;
 369         eb = ebhead;
 370         if (!eb) {
 371             eb = *ebtail = nasm_zalloc(sizeof(*eb));
 372             eb->next = NULL;
 373             ebtail = &eb->next;
 374         }
 375         while (i > EXT_BLKSIZ) {
 376             if (eb && eb->next)
 377                 eb = eb->next;
 378             else {
 379                 eb = *ebtail = nasm_zalloc(sizeof(*eb));
 380                 eb->next = NULL;
 381                 ebtail = &eb->next;
 382             }
 383             i -= EXT_BLKSIZ;
 384         }
 385         eb->index[i] = externals++;
 386     }
 387
 388 }
 389
 390 /*
 391  * Put data out
 392  */
 393 static void ieee_out(int32_t segto, const void *data,
 394                      enum out_type type, uint64_t size,
 395                      int32_t segment, int32_t wrt)
 396 {
 397     const uint8_t *ucdata;
 398     int32_t ldata;
 399     struct ieeeSection *seg;
 400
 401     /*
 402      * If `any_segs' is still false, we must define a default
 403      * segment.
 404      */
 405     if (!any_segs) {
 406         int tempint;            /* ignored */
 407         if (segto != ieee_segment("__NASMDEFSEG", 2, &tempint))
 408             nasm_panic("strange segment conditions in IEEE driver");
 409     }
 410
 411     /*
 412      * Find the segment we are targetting.
 413      */
 414     for (seg = seghead; seg; seg = seg->next)
 415         if (seg->index == segto)
 416             break;
 417     if (!seg)
 418         nasm_panic("code directed to nonexistent segment?");
 419
 420     if (type == OUT_RAWDATA) {
 421         ucdata = data;
 422         while (size--)
 423             ieee_write_byte(seg, *ucdata++);
 424     } else if (type == OUT_ADDRESS || type == OUT_REL2ADR ||
 425                type == OUT_REL4ADR) {
 426         if (type == OUT_ADDRESS)
 427             size = abs((int)size);
 428         else if (segment == NO_SEG)
 429             nasm_error(ERR_NONFATAL, "relative call to absolute address not"
 430                   " supported by IEEE format");
 431         ldata = *(int64_t *)data;
 432         if (type == OUT_REL2ADR)
 433             ldata += (size - 2);
 434         if (type == OUT_REL4ADR)
 435             ldata += (size - 4);
 436         ieee_write_fixup(segment, wrt, seg, size, type, ldata);
 437         if (size == 2)
 438             ieee_write_word(seg, ldata);
 439         else
 440             ieee_write_dword(seg, ldata);
 441     } else if (type == OUT_RESERVE) {
 442         while (size--)
 443             ieee_write_byte(seg, 0);
 444     }
 445 }
 446
 447 static void ieee_data_new(struct ieeeSection *segto)
 448 {
 449
 450     if (!segto->data)
 451         segto->data = segto->datacurr =
 452             nasm_malloc(sizeof(*(segto->datacurr)));
 453     else
 454         segto->datacurr = segto->datacurr->next =
 455             nasm_malloc(sizeof(*(segto->datacurr)));
 456     segto->datacurr->next = NULL;
 457 }
 458
 459 /*
 460  * this routine is unalduterated bloatware.  I usually don't do this
 461  * but I might as well see what it is like on a harmless program.
 462  * If anyone wants to optimize this is a good canditate!
 463  */
 464 static void ieee_write_fixup(int32_t segment, int32_t wrt,
 465                              struct ieeeSection *segto, int size,
 466                              uint64_t realtype, int32_t offset)
 467 {
 468     struct ieeeSection *target;
 469     struct ieeeFixupp s;
 470
 471     /* Don't put a fixup for things NASM can calculate */
 472     if (wrt == NO_SEG && segment == NO_SEG)
 473         return;
 474
 475     s.ftype = -1;
 476     /* if it is a WRT offset */
 477     if (wrt != NO_SEG) {
 478         s.ftype = FT_WRT;
 479         s.addend = offset;
 480         if (wrt >= SEG_ABS)
 481             s.id1 = -(wrt - SEG_ABS);
 482         else {
 483             if (wrt % 2 && realtype != OUT_REL2ADR
 484                 && realtype != OUT_REL4ADR) {
 485                 wrt--;
 486
 487                 for (target = seghead; target; target = target->next)
 488                     if (target->index == wrt)
 489                         break;
 490                 if (target) {
 491                     s.id1 = target->ieee_index;
 492                     for (target = seghead; target; target = target->next)
 493                         if (target->index == segment)
 494                             break;
 495
 496                     if (target)
 497                         s.id2 = target->ieee_index;
 498                     else {
 499                         /*
 500                          * Now we assume the segment field is being used
 501                          * to hold an extern index
 502                          */
 503                         int32_t i = segment / 2;
 504                         struct ExtBack *eb = ebhead;
 505                         while (i > EXT_BLKSIZ) {
 506                             if (eb)
 507                                 eb = eb->next;
 508                             else
 509                                 break;
 510                             i -= EXT_BLKSIZ;
 511                         }
 512                         /* if we have an extern decide the type and make a record
 513                          */
 514                         if (eb) {
 515                             s.ftype = FT_EXTWRT;
 516                             s.addend = 0;
 517                             s.id2 = eb->index[i];
 518                         } else
 519                             nasm_error(ERR_NONFATAL,
 520                                   "Source of WRT must be an offset");
 521                     }
 522
 523                 } else
 524                     nasm_panic("unrecognised WRT value in ieee_write_fixup");
 525             } else
 526                 nasm_error(ERR_NONFATAL, "target of WRT must be a section ");
 527         }
 528         s.size = size;
 529         ieee_install_fixup(segto, &s);
 530         return;
 531     }
 532     /* Pure segment fixup ? */
 533     if (segment != NO_SEG) {
 534         s.ftype = FT_SEG;
 535         s.id1 = 0;
 536         if (segment >= SEG_ABS) {
 537             /* absolute far segment fixup */
 538             s.id1 = -(segment - ~SEG_ABS);
 539         } else if (segment % 2) {
 540             /* fixup to named segment */
 541             /* look it up */
 542             for (target = seghead; target; target = target->next)
 543                 if (target->index == segment - 1)
 544                     break;
 545             if (target)
 546                 s.id1 = target->ieee_index;
 547             else {
 548                 /*
 549                  * Now we assume the segment field is being used
 550                  * to hold an extern index
 551                  */
 552                 int32_t i = segment / 2;
 553                 struct ExtBack *eb = ebhead;
 554                 while (i > EXT_BLKSIZ) {
 555                     if (eb)
 556                         eb = eb->next;
 557                     else
 558                         break;
 559                     i -= EXT_BLKSIZ;
 560                 }
 561                 /* if we have an extern decide the type and make a record
 562                  */
 563                 if (eb) {
 564                     if (realtype == OUT_REL2ADR || realtype == OUT_REL4ADR) {
 565                         nasm_panic("Segment of a rel not supported in ieee_write_fixup");
 566                     } else {
 567                         /* If we want the segment */
 568                         s.ftype = FT_EXTSEG;
 569                         s.addend = 0;
 570                         s.id1 = eb->index[i];
 571                     }
 572
 573                 } else
 574                     /* If we get here the seg value doesn't make sense */
 575                     nasm_panic("unrecognised segment value in ieee_write_fixup");
 576             }
 577
 578         } else {
 579             /* Assume we are offsetting directly from a section
 580              * So look up the target segment
 581              */
 582             for (target = seghead; target; target = target->next)
 583                 if (target->index == segment)
 584                     break;
 585             if (target) {
 586                 if (realtype == OUT_REL2ADR || realtype == OUT_REL4ADR) {
 587                     /* PC rel to a known offset */
 588                     s.id1 = target->ieee_index;
 589                     s.ftype = FT_REL;
 590                     s.size = size;
 591                     s.addend = offset;
 592                 } else {
 593                     /* We were offsetting from a seg */
 594                     s.id1 = target->ieee_index;
 595                     s.ftype = FT_OFS;
 596                     s.size = size;
 597                     s.addend = offset;
 598                 }
 599             } else {
 600                 /*
 601                  * Now we assume the segment field is being used
 602                  * to hold an extern index
 603                  */
 604                 int32_t i = segment / 2;
 605                 struct ExtBack *eb = ebhead;
 606                 while (i > EXT_BLKSIZ) {
 607                     if (eb)
 608                         eb = eb->next;
 609                     else
 610                         break;
 611                     i -= EXT_BLKSIZ;
 612                 }
 613                 /* if we have an extern decide the type and make a record
 614                  */
 615                 if (eb) {
 616                     if (realtype == OUT_REL2ADR || realtype == OUT_REL4ADR) {
 617                         s.ftype = FT_EXTREL;
 618                         s.addend = 0;
 619                         s.id1 = eb->index[i];
 620                     } else {
 621                         /* else we want the external offset */
 622                         s.ftype = FT_EXT;
 623                         s.addend = 0;
 624                         s.id1 = eb->index[i];
 625                     }
 626
 627                 } else
 628                     /* If we get here the seg value doesn't make sense */
 629                     nasm_panic("unrecognised segment value in ieee_write_fixup");
 630             }
 631         }
 632         if (size != 2 && s.ftype == FT_SEG)
 633             nasm_error(ERR_NONFATAL, "IEEE format can only handle 2-byte"
 634                   " segment base references");
 635         s.size = size;
 636         ieee_install_fixup(segto, &s);
 637         return;
 638     }
 639     /* should never get here */
 640 }
 641 static void ieee_install_fixup(struct ieeeSection *seg,
 642                                struct ieeeFixupp *fix)
 643 {
 644     struct ieeeFixupp *f;
 645     f = nasm_malloc(sizeof(struct ieeeFixupp));
 646     memcpy(f, fix, sizeof(struct ieeeFixupp));
 647     f->offset = seg->currentpos;
 648     seg->currentpos += fix->size;
 649     f->next = NULL;
 650     if (seg->fptr)
 651         seg->flptr = seg->flptr->next = f;
 652     else
 653         seg->fptr = seg->flptr = f;
 654
 655 }
 656
 657 /*
 658  * segment registry
 659  */
 660 static int32_t ieee_segment(char *name, int pass, int *bits)
 661 {
 662     /*
 663      * We call the label manager here to define a name for the new
 664      * segment, and when our _own_ label-definition stub gets
 665      * called in return, it should register the new segment name
 666      * using the pointer it gets passed. That way we save memory,
 667      * by sponging off the label manager.
 668      */
 669     if (!name) {
 670         *bits = 16;
 671         if (!any_segs)
 672             return 0;
 673         return seghead->index;
 674     } else {
 675         struct ieeeSection *seg;
 676         int ieee_idx, attrs;
 677         bool rn_error;
 678         char *p;
 679
 680         /*
 681          * Look for segment attributes.
 682          */
 683         attrs = 0;
 684         while (*name == '.')
 685             name++;             /* hack, but a documented one */
 686         p = name;
 687         while (*p && !nasm_isspace(*p))
 688             p++;
 689         if (*p) {
 690             *p++ = '\0';
 691             while (*p && nasm_isspace(*p))
 692                 *p++ = '\0';
 693         }
 694         while (*p) {
 695             while (*p && !nasm_isspace(*p))
 696                 p++;
 697             if (*p) {
 698                 *p++ = '\0';
 699                 while (*p && nasm_isspace(*p))
 700                     *p++ = '\0';
 701             }
 702
 703             attrs++;
 704         }
 705
 706         ieee_idx = 1;
 707         for (seg = seghead; seg; seg = seg->next) {
 708             ieee_idx++;
 709             if (!strcmp(seg->name, name)) {
 710                 if (attrs > 0 && pass == 1)
 711                     nasm_error(ERR_WARNING, "segment attributes specified on"
 712                           " redeclaration of segment: ignoring");
 713                 if (seg->use32)
 714                     *bits = 32;
 715                 else
 716                     *bits = 16;
 717                 return seg->index;
 718             }
 719         }
 720
 721         *segtail = seg = nasm_malloc(sizeof(*seg));
 722         seg->next = NULL;
 723         segtail = &seg->next;
 724         seg->index = seg_alloc();
 725         seg->ieee_index = ieee_idx;
 726         any_segs = true;
 727         seg->name = NULL;
 728         seg->currentpos = 0;
 729         seg->align = 1;         /* default */
 730         seg->use32 = *bits == 32;       /* default to user spec */
 731         seg->combine = CMB_PUBLIC;      /* default */
 732         seg->pubhead = NULL;
 733         seg->pubtail = &seg->pubhead;
 734         seg->data = NULL;
 735         seg->fptr = NULL;
 736         seg->lochead = NULL;
 737         seg->loctail = &seg->lochead;
 738
 739         /*
 740          * Process the segment attributes.
 741          */
 742         p = name;
 743         while (attrs--) {
 744             p += strlen(p);
 745             while (!*p)
 746                 p++;
 747
 748             /*
 749              * `p' contains a segment attribute.
 750              */
 751             if (!nasm_stricmp(p, "private"))
 752                 seg->combine = CMB_PRIVATE;
 753             else if (!nasm_stricmp(p, "public"))
 754                 seg->combine = CMB_PUBLIC;
 755             else if (!nasm_stricmp(p, "common"))
 756                 seg->combine = CMB_COMMON;
 757             else if (!nasm_stricmp(p, "use16"))
 758                 seg->use32 = false;
 759             else if (!nasm_stricmp(p, "use32"))
 760                 seg->use32 = true;
 761             else if (!nasm_strnicmp(p, "align=", 6)) {
 762                 seg->align = readnum(p + 6, &rn_error);
 763                 if (seg->align == 0)
 764                     seg->align = 1;
 765                 if (rn_error) {
 766                     seg->align = 1;
 767                     nasm_error(ERR_NONFATAL, "segment alignment should be"
 768                           " numeric");
 769                 }
 770                 switch (seg->align) {
 771                 case 1:        /* BYTE */
 772                 case 2:        /* WORD */
 773                 case 4:        /* DWORD */
 774                 case 16:       /* PARA */
 775                 case 256:      /* PAGE */
 776                 case 8:
 777                 case 32:
 778                 case 64:
 779                 case 128:
 780                     break;
 781                 default:
 782                     nasm_error(ERR_NONFATAL, "invalid alignment value %d",
 783                           seg->align);
 784                     seg->align = 1;
 785                     break;
 786                 }
 787             } else if (!nasm_strnicmp(p, "absolute=", 9)) {
 788                 seg->align = SEG_ABS + readnum(p + 9, &rn_error);
 789                 if (rn_error)
 790                     nasm_error(ERR_NONFATAL, "argument to `absolute' segment"
 791                           " attribute should be numeric");
 792             }
 793         }
 794
 795         ieee_seg_needs_update = seg;
 796         if (seg->align >= SEG_ABS)
 797             define_label(name, NO_SEG, seg->align - SEG_ABS, false);
 798         else
 799             define_label(name, seg->index + 1, 0L, false);
 800         ieee_seg_needs_update = NULL;
 801
 802         if (seg->use32)
 803             *bits = 32;
 804         else
 805             *bits = 16;
 806         return seg->index;
 807     }
 808 }
 809
 810 /*
 811  * directives supported
 812  */
 813 static enum directive_result
 814 ieee_directive(enum directive directive, char *value, int pass)
 815 {
 816
 817     (void)value;
 818     (void)pass;
 819
 820     switch (directive) {
 821     case D_UPPERCASE:
 822         ieee_uppercase = true;
 823         return DIRR_OK;
 824
 825     default:
 826         return DIRR_UNKNOWN;
 827     }
 828 }
 829
 830 static void ieee_sectalign(int32_t seg, unsigned int value)
 831 {
 832     struct ieeeSection *s;
 833
 834     list_for_each(s, seghead) {
 835         if (s->index == seg)
 836             break;
 837     }
 838
 839     /*
 840      * 256 is maximum there, note it may happen
 841      * that align is issued on "absolute" segment
 842      * it's fine since SEG_ABS > 256 and we never
 843      * get escape this test
 844      */
 845     if (!s || !is_power2(value) || value > 256)
 846         return;
 847
 848     if ((unsigned int)s->align < value)
 849         s->align = value;
 850 }
 851
 852 /*
 853  * Return segment data
 854  */
 855 static int32_t ieee_segbase(int32_t segment)
 856 {
 857     struct ieeeSection *seg;
 858
 859     /*
 860      * Find the segment in our list.
 861      */
 862     for (seg = seghead; seg; seg = seg->next)
 863         if (seg->index == segment - 1)
 864             break;
 865
 866     if (!seg)
 867         return segment;         /* not one of ours - leave it alone */
 868
 869     if (seg->align >= SEG_ABS)
 870         return seg->align;      /* absolute segment */
 871
 872     return segment;             /* no special treatment */
 873 }
 874
 875 static void ieee_write_file(void)
 876 {
 877     const struct tm * const thetime = &official_compile_time.local;
 878     struct FileName *fn;
 879     struct ieeeSection *seg;
 880     struct ieeePublic *pub, *loc;
 881     struct ieeeExternal *ext;
 882     struct ieeeObjData *data;
 883     struct ieeeFixupp *fix;
 884     struct Array *arr;
 885     int i;
 886     const bool debuginfo = (dfmt == &ladsoft_debug_form);
 887
 888     /*
 889      * Write the module header
 890      */
 891     ieee_putascii("MBFNASM,%02X%s.\n", strlen(ieee_infile), ieee_infile);
 892
 893     /*
 894      * Write the NASM boast comment.
 895      */
 896     ieee_putascii("CO0,%02X%s.\n", nasm_comment_len(), nasm_comment());
 897
 898     /*
 899      * write processor-specific information
 900      */
 901     ieee_putascii("AD8,4,L.\n");
 902
 903     /*
 904      * date and time
 905      */
 906     ieee_putascii("DT%04d%02d%02d%02d%02d%02d.\n",
 907                   1900 + thetime->tm_year, thetime->tm_mon + 1,
 908                   thetime->tm_mday, thetime->tm_hour, thetime->tm_min,
 909                   thetime->tm_sec);
 910     /*
 911      * if debugging, dump file names
 912      */
 913     for (fn = fnhead; fn && debuginfo; fn = fn->next) {
 914         ieee_putascii("C0105,%02X%s.\n", strlen(fn->name), fn->name);
 915     }
 916
 917     ieee_putascii("CO101,07ENDHEAD.\n");
 918     /*
 919      * the standard doesn't specify when to put checksums,
 920      * we'll just do it periodically.
 921      */
 922     ieee_putcs(false);
 923
 924     /*
 925      * Write the section headers
 926      */
 927     seg = seghead;
 928     if (!debuginfo && !strcmp(seg->name, "??LINE"))
 929         seg = seg->next;
 930     while (seg) {
 931         char buf[256];
 932         char attrib;
 933         switch (seg->combine) {
 934         case CMB_PUBLIC:
 935         default:
 936             attrib = 'C';
 937             break;
 938         case CMB_PRIVATE:
 939             attrib = 'S';
 940             break;
 941         case CMB_COMMON:
 942             attrib = 'M';
 943             break;
 944         }
 945         ieee_unqualified_name(buf, seg->name);
 946         if (seg->align >= SEG_ABS) {
 947             ieee_putascii("ST%X,A,%02X%s.\n", seg->ieee_index,
 948                           strlen(buf), buf);
 949             ieee_putascii("ASL%X,%lX.\n", seg->ieee_index,
 950                           (seg->align - SEG_ABS) * 16);
 951         } else {
 952             ieee_putascii("ST%X,%c,%02X%s.\n", seg->ieee_index, attrib,
 953                           strlen(buf), buf);
 954             ieee_putascii("SA%X,%lX.\n", seg->ieee_index, seg->align);
 955             ieee_putascii("ASS%X,%X.\n", seg->ieee_index,
 956                           seg->currentpos);
 957         }
 958         seg = seg->next;
 959     }
 960     /*
 961      * write the start address if there is one
 962      */
 963     if (ieee_entry_seg) {
 964         for (seg = seghead; seg; seg = seg->next)
 965             if (seg->index == ieee_entry_seg)
 966                 break;
 967         if (!seg)
 968             nasm_panic("Start address records are incorrect");
 969         else
 970             ieee_putascii("ASG,R%X,%lX,+.\n", seg->ieee_index,
 971                           ieee_entry_ofs);
 972     }
 973
 974     ieee_putcs(false);
 975     /*
 976      * Write the publics
 977      */
 978     i = 1;
 979     for (seg = seghead; seg; seg = seg->next) {
 980         for (pub = seg->pubhead; pub; pub = pub->next) {
 981             char buf[256];
 982             ieee_unqualified_name(buf, pub->name);
 983             ieee_putascii("NI%X,%02X%s.\n", i, strlen(buf), buf);
 984             if (pub->segment == -1)
 985                 ieee_putascii("ASI%X,R%X,%lX,+.\n", i, pub->index,
 986                               pub->offset);
 987             else
 988                 ieee_putascii("ASI%X,%lX,%lX,+.\n", i, pub->segment * 16,
 989                               pub->offset);
 990             if (debuginfo) {
 991                 if (pub->type >= 0x100)
 992                     ieee_putascii("ATI%X,T%X.\n", i, pub->type - 0x100);
 993                 else
 994                     ieee_putascii("ATI%X,%X.\n", i, pub->type);
 995             }
 996             i++;
 997         }
 998     }
 999     pub = fpubhead;
1000     i = 1;
1001     while (pub) {
1002         char buf[256];
1003         ieee_unqualified_name(buf, pub->name);
1004         ieee_putascii("NI%X,%02X%s.\n", i, strlen(buf), buf);
1005         if (pub->segment == -1)
1006             ieee_putascii("ASI%X,R%X,%lX,+.\n", i, pub->index,
1007                           pub->offset);
1008         else
1009             ieee_putascii("ASI%X,%lX,%lX,+.\n", i, pub->segment * 16,
1010                           pub->offset);
1011         if (debuginfo) {
1012             if (pub->type >= 0x100)
1013                 ieee_putascii("ATI%X,T%X.\n", i, pub->type - 0x100);
1014             else
1015                 ieee_putascii("ATI%X,%X.\n", i, pub->type);
1016         }
1017         i++;
1018         pub = pub->next;
1019     }
1020     /*
1021      * Write the externals
1022      */
1023     ext = exthead;
1024     i = 1;
1025     while (ext) {
1026         char buf[256];
1027         ieee_unqualified_name(buf, ext->name);
1028         ieee_putascii("NX%X,%02X%s.\n", i++, strlen(buf), buf);
1029         ext = ext->next;
1030     }
1031     ieee_putcs(false);
1032
1033     /*
1034      * IEEE doesn't have a standard pass break record
1035      * so use the ladsoft variant
1036      */
1037     ieee_putascii("CO100,06ENDSYM.\n");
1038
1039     /*
1040      * now put types
1041      */
1042     i = ARRAY_BOT;
1043     for (arr = arrhead; arr && debuginfo; arr = arr->next) {
1044         ieee_putascii("TY%X,20,%X,%lX.\n", i++, arr->basetype,
1045                       arr->size);
1046     }
1047     /*
1048      * now put locals
1049      */
1050     i = 1;
1051     for (seg = seghead; seg && debuginfo; seg = seg->next) {
1052         for (loc = seg->lochead; loc; loc = loc->next) {
1053             char buf[256];
1054             ieee_unqualified_name(buf, loc->name);
1055             ieee_putascii("NN%X,%02X%s.\n", i, strlen(buf), buf);
1056             if (loc->segment == -1)
1057                 ieee_putascii("ASN%X,R%X,%lX,+.\n", i, loc->index,
1058                               loc->offset);
1059             else
1060                 ieee_putascii("ASN%X,%lX,%lX,+.\n", i, loc->segment * 16,
1061                               loc->offset);
1062             if (debuginfo) {
1063                 if (loc->type >= 0x100)
1064                     ieee_putascii("ATN%X,T%X.\n", i, loc->type - 0x100);
1065                 else
1066                     ieee_putascii("ATN%X,%X.\n", i, loc->type);
1067             }
1068             i++;
1069         }
1070     }
1071
1072     /*
1073      *  put out section data;
1074      */
1075     seg = seghead;
1076     if (!debuginfo && !strcmp(seg->name, "??LINE"))
1077         seg = seg->next;
1078     while (seg) {
1079         if (seg->currentpos) {
1080             int32_t size, org = 0;
1081             data = seg->data;
1082             ieee_putascii("SB%X.\n", seg->ieee_index);
1083             fix = seg->fptr;
1084             while (fix) {
1085                 size = HUNKSIZE - (org % HUNKSIZE);
1086                 size =
1087                     size + org >
1088                     seg->currentpos ? seg->currentpos - org : size;
1089                 size = fix->offset - org > size ? size : fix->offset - org;
1090                 org = ieee_putld(org, org + size, data->data);
1091                 if (org % HUNKSIZE == 0)
1092                     data = data->next;
1093                 if (org == fix->offset) {
1094                     org += ieee_putlr(fix);
1095                     fix = fix->next;
1096                 }
1097             }
1098             while (org < seg->currentpos && data) {
1099                 size =
1100                     seg->currentpos - org >
1101                     HUNKSIZE ? HUNKSIZE : seg->currentpos - org;
1102                 org = ieee_putld(org, org + size, data->data);
1103                 data = data->next;
1104             }
1105             ieee_putcs(false);
1106
1107         }
1108         seg = seg->next;
1109     }
1110     /*
1111      * module end record
1112      */
1113     ieee_putascii("ME.\n");
1114 }
1115
1116 static void ieee_write_byte(struct ieeeSection *seg, int data)
1117 {
1118     int temp;
1119     if (!(temp = seg->currentpos++ % HUNKSIZE))
1120         ieee_data_new(seg);
1121     seg->datacurr->data[temp] = data;
1122 }
1123
1124 static void ieee_write_word(struct ieeeSection *seg, int data)
1125 {
1126     ieee_write_byte(seg, data & 0xFF);
1127     ieee_write_byte(seg, (data >> 8) & 0xFF);
1128 }
1129
1130 static void ieee_write_dword(struct ieeeSection *seg, int32_t data)
1131 {
1132     ieee_write_byte(seg, data & 0xFF);
1133     ieee_write_byte(seg, (data >> 8) & 0xFF);
1134     ieee_write_byte(seg, (data >> 16) & 0xFF);
1135     ieee_write_byte(seg, (data >> 24) & 0xFF);
1136 }
1137 static void ieee_putascii(char *format, ...)
1138 {
1139     char buffer[256];
1140     int i, l;
1141     va_list ap;
1142
1143     va_start(ap, format);
1144     vsnprintf(buffer, sizeof(buffer), format, ap);
1145     l = strlen(buffer);
1146     for (i = 0; i < l; i++)
1147         if ((uint8_t)buffer[i] > 31)
1148             checksum += buffer[i];
1149     va_end(ap);
1150     fputs(buffer, ofile);
1151 }
1152
1153 /*
1154  * put out a checksum record */
1155 static void ieee_putcs(int toclear)
1156 {
1157     if (toclear) {
1158         ieee_putascii("CS.\n");
1159     } else {
1160         checksum += 'C';
1161         checksum += 'S';
1162         ieee_putascii("CS%02X.\n", checksum & 127);
1163     }
1164     checksum = 0;
1165 }
1166
1167 static int32_t ieee_putld(int32_t start, int32_t end, uint8_t *buf)
1168 {
1169     int32_t val;
1170     if (start == end)
1171         return (start);
1172     val = start % HUNKSIZE;
1173     /* fill up multiple lines */
1174     while (end - start >= LDPERLINE) {
1175         int i;
1176         ieee_putascii("LD");
1177         for (i = 0; i < LDPERLINE; i++) {
1178             ieee_putascii("%02X", buf[val++]);
1179             start++;
1180         }
1181         ieee_putascii(".\n");
1182     }
1183     /* if no partial lines */
1184     if (start == end)
1185         return (start);
1186     /* make a partial line */
1187     ieee_putascii("LD");
1188     while (start < end) {
1189         ieee_putascii("%02X", buf[val++]);
1190         start++;
1191     }
1192     ieee_putascii(".\n");
1193     return (start);
1194 }
1195 static int32_t ieee_putlr(struct ieeeFixupp *p)
1196 {
1197 /*
1198  * To deal with the vagaries of segmentation the LADsoft linker
1199  * defines two types of segments: absolute and virtual.  Note that
1200  * 'absolute' in this context is a different thing from the IEEE
1201  * definition of an absolute segment type, which is also supported. If a
1202  * sement is linked in virtual mode the low limit (L-var) is
1203  * subtracted from each R,X, and P variable which appears in an
1204  * expression, so that we can have relative offsets.  Meanwhile
1205  * in the ABSOLUTE mode this subtraction is not done and
1206  * so we can use absolute offsets from 0.  In the LADsoft linker
1207  * this configuration is not done in the assemblker source but in
1208  * a source the linker reads.  Generally this type of thing only
1209  * becomes an issue if real mode code is used.  A pure 32-bit linker could
1210  * get away without defining the virtual mode...
1211  */
1212     char buf[40];
1213     int32_t size = p->size;
1214     switch (p->ftype) {
1215     case FT_SEG:
1216         if (p->id1 < 0)
1217             sprintf(buf, "%"PRIX32"", -p->id1);
1218         else
1219             sprintf(buf, "L%"PRIX32",10,/", p->id1);
1220         break;
1221     case FT_OFS:
1222         sprintf(buf, "R%"PRIX32",%"PRIX32",+", p->id1, p->addend);
1223         break;
1224     case FT_REL:
1225         sprintf(buf, "R%"PRIX32",%"PRIX32",+,P,-,%X,-", p->id1, p->addend, p->size);
1226         break;
1227
1228     case FT_WRT:
1229         if (p->id2 < 0)
1230             sprintf(buf, "R%"PRIX32",%"PRIX32",+,L%"PRIX32",+,%"PRIX32",-", p->id2, p->addend,
1231                     p->id2, -p->id1 * 16);
1232         else
1233             sprintf(buf, "R%"PRIX32",%"PRIX32",+,L%"PRIX32",+,L%"PRIX32",-", p->id2, p->addend,
1234                     p->id2, p->id1);
1235         break;
1236     case FT_EXT:
1237         sprintf(buf, "X%"PRIX32"", p->id1);
1238         break;
1239     case FT_EXTREL:
1240         sprintf(buf, "X%"PRIX32",P,-,%"PRIX32",-", p->id1, size);
1241         break;
1242     case FT_EXTSEG:
1243         /* We needed a non-ieee hack here.
1244          * We introduce the Y variable, which is the low
1245          * limit of the native segment the extern resides in
1246          */
1247         sprintf(buf, "Y%"PRIX32",10,/", p->id1);
1248         break;
1249     case FT_EXTWRT:
1250         if (p->id2 < 0)
1251             sprintf(buf, "X%"PRIX32",Y%"PRIX32",+,%"PRIX32",-", p->id2, p->id2,
1252                     -p->id1 * 16);
1253         else
1254             sprintf(buf, "X%"PRIX32",Y%"PRIX32",+,L%"PRIX32",-", p->id2, p->id2, p->id1);
1255         break;
1256     }
1257     ieee_putascii("LR(%s,%"PRIX32").\n", buf, size);
1258
1259     return (size);
1260 }
1261
1262 /* Dump all segment data (text and fixups )*/
1263
1264 static void ieee_unqualified_name(char *dest, char *source)
1265 {
1266     if (ieee_uppercase) {
1267         while (*source)
1268             *dest++ = toupper(*source++);
1269         *dest = 0;
1270     } else
1271         strcpy(dest, source);
1272 }
1273 static void dbgls_init(void)
1274 {
1275     int tempint;
1276
1277     fnhead = NULL;
1278     fntail = &fnhead;
1279     arrindex = ARRAY_BOT;
1280     arrhead = NULL;
1281     arrtail = &arrhead;
1282     ieee_segment("??LINE", 2, &tempint);
1283     any_segs = false;
1284 }
1285 static void dbgls_cleanup(void)
1286 {
1287     struct ieeeSection *segtmp;
1288     while (fnhead) {
1289         struct FileName *fntemp = fnhead;
1290         fnhead = fnhead->next;
1291         nasm_free(fntemp->name);
1292         nasm_free(fntemp);
1293     }
1294     for (segtmp = seghead; segtmp; segtmp = segtmp->next) {
1295         while (segtmp->lochead) {
1296             struct ieeePublic *loctmp = segtmp->lochead;
1297             segtmp->lochead = loctmp->next;
1298             nasm_free(loctmp->name);
1299             nasm_free(loctmp);
1300         }
1301     }
1302     while (arrhead) {
1303         struct Array *arrtmp = arrhead;
1304         arrhead = arrhead->next;
1305         nasm_free(arrtmp);
1306     }
1307 }
1308
1309 /*
1310  * because this routine is not bracketed in
1311  * the main program, this routine will be called even if there
1312  * is no request for debug info
1313  * so, we have to make sure the ??LINE segment is avaialbe
1314  * as the first segment when this debug format is selected
1315  */
1316 static void dbgls_linnum(const char *lnfname, int32_t lineno, int32_t segto)
1317 {
1318     struct FileName *fn;
1319     struct ieeeSection *seg;
1320     int i = 0;
1321     if (segto == NO_SEG)
1322         return;
1323
1324     /*
1325      * If `any_segs' is still false, we must define a default
1326      * segment.
1327      */
1328     if (!any_segs) {
1329         int tempint;            /* ignored */
1330         if (segto != ieee_segment("__NASMDEFSEG", 2, &tempint))
1331             nasm_panic("strange segment conditions in OBJ driver");
1332     }
1333
1334     /*
1335      * Find the segment we are targetting.
1336      */
1337     for (seg = seghead; seg; seg = seg->next)
1338         if (seg->index == segto)
1339             break;
1340     if (!seg)
1341         nasm_panic("lineno directed to nonexistent segment?");
1342
1343     for (fn = fnhead; fn; fn = fn->next) {
1344         if (!nasm_stricmp(lnfname, fn->name))
1345             break;
1346         i++;
1347     }
1348     if (!fn) {
1349         fn = nasm_malloc(sizeof(*fn));
1350         fn->name = nasm_malloc(strlen(lnfname) + 1);
1351         fn->index = i;
1352         strcpy(fn->name, lnfname);
1353         fn->next = NULL;
1354         *fntail = fn;
1355         fntail = &fn->next;
1356     }
1357     ieee_write_byte(seghead, fn->index);
1358     ieee_write_word(seghead, lineno);
1359     ieee_write_fixup(segto, NO_SEG, seghead, 4, OUT_ADDRESS,
1360                      seg->currentpos);
1361
1362 }
1363 static void dbgls_deflabel(char *name, int32_t segment,
1364                            int64_t offset, int is_global, char *special)
1365 {
1366     struct ieeeSection *seg;
1367
1368     /* Keep compiler from warning about special */
1369     (void)special;
1370
1371     /*
1372      * Note: ..[^@] special symbols are filtered in labels.c
1373      */
1374
1375     /*
1376      * If it's a special-retry from pass two, discard it.
1377      */
1378     if (is_global == 3)
1379         return;
1380
1381     /*
1382      * Case (i):
1383      */
1384     if (ieee_seg_needs_update)
1385         return;
1386     if (segment < SEG_ABS && segment != NO_SEG && segment % 2)
1387         return;
1388
1389     if (segment >= SEG_ABS || segment == NO_SEG) {
1390         return;
1391     }
1392
1393     /*
1394      * If `any_segs' is still false, we might need to define a
1395      * default segment, if they're trying to declare a label in
1396      * `first_seg'.  But the label should exist due to a prior
1397      * call to ieee_deflabel so we can skip that.
1398      */
1399
1400     for (seg = seghead; seg; seg = seg->next)
1401         if (seg->index == segment) {
1402             struct ieeePublic *loc;
1403             /*
1404              * Case (ii). Maybe MODPUB someday?
1405              */
1406             if (!is_global) {
1407                 last_defined = loc = nasm_malloc(sizeof(*loc));
1408                 *seg->loctail = loc;
1409                 seg->loctail = &loc->next;
1410                 loc->next = NULL;
1411                 loc->name = nasm_strdup(name);
1412                 loc->offset = offset;
1413                 loc->segment = -1;
1414                 loc->index = seg->ieee_index;
1415             }
1416         }
1417 }
1418 static void dbgls_typevalue(int32_t type)
1419 {
1420     int elem = TYM_ELEMENTS(type);
1421     type = TYM_TYPE(type);
1422
1423     if (!last_defined)
1424         return;
1425
1426     switch (type) {
1427     case TY_BYTE:
1428         last_defined->type = 1; /* uint8_t */
1429         break;
1430     case TY_WORD:
1431         last_defined->type = 3; /* unsigned word */
1432         break;
1433     case TY_DWORD:
1434         last_defined->type = 5; /* unsigned dword */
1435         break;
1436     case TY_FLOAT:
1437         last_defined->type = 9; /* float */
1438         break;
1439     case TY_QWORD:
1440         last_defined->type = 10;        /* qword */
1441         break;
1442     case TY_TBYTE:
1443         last_defined->type = 11;        /* TBYTE */
1444         break;
1445     default:
1446         last_defined->type = 0x10;      /* near label */
1447         break;
1448     }
1449
1450     if (elem > 1) {
1451         struct Array *arrtmp = nasm_malloc(sizeof(*arrtmp));
1452         int vtype = last_defined->type;
1453         arrtmp->size = elem;
1454         arrtmp->basetype = vtype;
1455         arrtmp->next = NULL;
1456         last_defined->type = arrindex++ + 0x100;
1457         *arrtail = arrtmp;
1458         arrtail = &(arrtmp->next);
1459     }
1460     last_defined = NULL;
1461 }
1462 static void dbgls_output(int output_type, void *param)
1463 {
1464     (void)output_type;
1465     (void)param;
1466 }
1467 static const struct dfmt ladsoft_debug_form = {
1468     "LADsoft Debug Records",
1469     "ladsoft",
1470     dbgls_init,
1471     dbgls_linnum,
1472     dbgls_deflabel,
1473     null_debug_directive,
1474     dbgls_typevalue,
1475     dbgls_output,
1476     dbgls_cleanup,
1477     NULL                        /* pragma list */
1478 };
1479 static const struct dfmt * const ladsoft_debug_arr[3] = {
1480     &ladsoft_debug_form,
1481     &null_debug_form,
1482     NULL
1483 };
1484 const struct ofmt of_ieee = {
1485     "IEEE-695 (LADsoft variant) object file format",
1486     "ieee",
1487     ".o",
1488     OFMT_TEXT,
1489     32,
1490     ladsoft_debug_arr,
1491     &ladsoft_debug_form,
1492     NULL,
1493     ieee_init,
1494     null_reset,
1495     nasm_do_legacy_output,
1496     ieee_out,
1497     ieee_deflabel,
1498     ieee_segment,
1499     NULL,
1500     ieee_sectalign,
1501     ieee_segbase,
1502     ieee_directive,
1503     ieee_cleanup,
1504     NULL                        /* pragma list */
1505 };
1506
1507 #endif                          /* OF_IEEE */