Changes for CWEAVE for MSDOS and Borland C++ 3.1 using the following options (and perhaps others): -mc -w-pro -Ff=5000 -Z- -O-p The options -Z- and -O-p explicitly turn off optimizations that break the code. (See makefile.bs.) The main purpose of these changes is to support MSDOS with full-size arrays by using "huge" pointers. This file contributed by Barry Schwartz, trashman@crud.mn.org, 28 Jun 94. (Includes workaround for compiler bug [pointers wrapping around at segment boundaries], November 1993, contributed by Jorge Fernandez Arnaiz -- arnaiz@redvax1.dgsca.unam.mx) (Last revised 5 Dec 94 with help of bob@microprograms.com.) @x Section 1. The ``banner line'' defined here should be changed whenever \.{CWEAVE} is modified. @d banner "This is CWEAVE (Version 4.12)" @y The ``banner line'' defined here should be changed whenever \.{CWEAVE} is modified. @d banner "This is CWEAVE (Version 4.12pc/big)" @z @x Section 11. @d ilk dummy.Ilk /* used by \.{CWEAVE} only */ @= typedef struct name_info { char *byte_start; /* beginning of the name in |byte_mem| */ struct name_info *link; union { struct name_info *Rlink; /* right link in binary search tree for section names */ eight_bits Ilk; /* used by identifiers in \.{CWEAVE} only */ } dummy; void *equiv_or_xref; /* info corresponding to names */ } name_info; /* contains information about an identifier or section name */ typedef name_info *name_pointer; /* pointer into array of \&{name\_info}s */ typedef name_pointer *hash_pointer; extern char byte_mem[]; /* characters of names */ extern char *byte_mem_end; /* end of |byte_mem| */ extern char *byte_ptr; /* first unused position in |byte_mem| */ extern name_info name_dir[]; /* information about names */ extern name_pointer name_dir_end; /* end of |name_dir| */ extern name_pointer name_ptr; /* first unused position in |name_dir| */ @y @d ilk dummy.Ilk /* used by \.{CWEAVE} only */ @f huge extern @= typedef struct name_info { char huge* byte_start; /* beginning of the name in |byte_mem| */ struct name_info *link; union { struct name_info *Rlink; /* right link in binary search tree for section names */ eight_bits Ilk; /* used by identifiers in \.{CWEAVE} only */ } dummy; union { char *equiv_member; char huge* xref_member; } ptr_union; /* info corresponding to names */ } name_info; /* contains information about an identifier or section name */ typedef name_info *name_pointer; /* pointer into array of \&{name\_info}s */ typedef name_pointer *hash_pointer; extern char huge byte_mem[]; /* characters of names */ extern char huge* byte_mem_end; /* end of |byte_mem| */ extern name_info name_dir[]; /* information about names */ extern name_pointer name_dir_end; /* end of |name_dir| */ extern name_pointer name_ptr; /* first unused position in |name_dir| */ extern char huge* byte_ptr; /* first unused position in |byte_mem| */ @z @x Section 22. typedef struct xref_info { sixteen_bits num; /* section number plus zero or |def_flag| */ struct xref_info *xlink; /* pointer to the previous cross-reference */ } xref_info; typedef xref_info *xref_pointer; @y typedef struct xref_info { sixteen_bits num; /* section number plus zero or |def_flag| */ struct xref_info huge* xlink; /* pointer to the previous cross-reference */ } xref_info; typedef xref_info huge* xref_pointer; @z @x Section 23. static xref_info xmem[max_refs]; /* contains cross-reference information */ static xref_pointer xmem_end = xmem+max_refs-1; @y static xref_info huge xmem[max_refs]; /* contains cross-reference information */ static xref_pointer xmem_end; @z @x Section 24. @d xref equiv_or_xref @y @d xref ptr_union.xref_member @z @x Section 24. xref_ptr=xmem; init_node(name_dir); xref_switch=section_xref_switch=0; xmem->num=0; /* sentinel value */ @y xmem_end = xmem + max_refs - 1; xref_ptr=xmem; init_node(name_dir); xref_switch=section_xref_switch=0; xmem->num=0; /* sentinel value */ @z @x Section 30. (to please Borland's C++, version 4.02) static token tok_mem[max_toks]; /* tokens */ static token_pointer tok_mem_end = tok_mem+max_toks-1; /* end of |tok_mem| */ static token_pointer tok_ptr; /* first unused position in |tok_mem| */ static token_pointer max_tok_ptr; /* largest value of |tok_ptr| */ static token_pointer tok_start[max_texts]; /* directory into |tok_mem| */ static text_pointer tok_start_end = tok_start+max_texts-1; /* end of |tok_start| */ static text_pointer text_ptr; /* first unused position in |tok_start| */ @y static token tok_mem[max_toks]; /* tokens */ static token_pointer tok_mem_end; /* end of |tok_mem| */ static token_pointer tok_ptr; /* first unused position in |tok_mem| */ static token_pointer max_tok_ptr; /* largest value of |tok_ptr| */ static token_pointer tok_start[max_texts]; /* directory into |tok_mem| */ static text_pointer tok_start_end; /* end of |tok_start| */ static text_pointer text_ptr; /* first unused position in |tok_start| */ @z @x Section 31. (goes with the previous change) tok_ptr=max_tok_ptr=tok_mem+1;@/ tok_start[0]=tok_start[1]=tok_mem+1;@/ text_ptr=max_text_ptr=tok_start+1; @y tok_start[1]=tok_mem+1; tok_mem_end=tok_mem+max_toks-1; tok_start_end=tok_start+max_texts-1; max_tok_ptr=tok_mem+1; max_text_ptr=tok_start+1; @z @x Section 32. p->xref=(void *)xmem; @y p->xref=(void huge*)xmem; @z @x Section 78. if (unindexed(lhs)) { /* retain only underlined entries */ xref_pointer q,r=NULL; for (q=(xref_pointer)lhs->xref;q>xmem;q=q->xlink) if (q->numxlink=q->xlink; else lhs->xref=(void *)q->xlink; else r=q; } @y if (unindexed(lhs)) { /* retain only underlined entries */ xref_pointer q,r=NULL; for (q=(xref_pointer)lhs->xref;q>xmem;q=q->xlink) if (q->numxlink=q->xlink; else lhs->xref=(void huge*)q->xlink; else r=q; } @z @x Section 97. char *k; /* pointer into |byte_mem| */ @y char huge* *k; /* pointer into |byte_mem| */ @z @x Section 217. char *p; /* index into |byte_mem| */ @y char huge *p; /* index into |byte_mem| */ @z @x Section 252. if (cur_name->xref!=(void *)xmem) { @y if (cur_name->xref!=(void huge*)xmem) { @z @x Section 254. static char *cur_byte; /* index into |byte_mem| */ @y static char huge* cur_byte; /* index into |byte_mem| */ @z @x Section 263. switch (cur_name->ilk) {@+char *p; /* index into |byte_mem| */@+@t}\6{\4@> @y switch (cur_name->ilk) {@+char huge* p; /* index into |byte_mem| */@+@t}\6{\4@> @z