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Include undefined symbols in the symbol table for listing purposes.

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MACRO11 V05.05 does this:

```
.MAIN.  MACRO V05.05  Sunday 18-APR-2021 16:29  Page 1

      1
      2 000000  012700  000000G                 mov #lab1,r0
      3
      4                                         .dsabl gbl
      5
U     6 000004  012700  000000                  mov #lab2,r0
      7
      8         000001                          .end

.MAIN.  MACRO V05.05  Sunday 18-APR-2021 16:29  Page 1-1
Symbol table

LAB1  = ****** GX       LAB2  = ******

. ABS.  000000    000   (RW,I,GBL,ABS,OVR)
        000010    001   (RW,I,LCL,REL,CON)
Errors detected:  1

*** Assembler statistics

Work  file  reads: 0
Work  file writes: 0
Size of work file: 34 Words  ( 1 Pages)
Size of core pool: 9260 Words  ( 35 Pages)
Operating  system: RSX-11M/M-PLUS

Elapsed time: 00:00:00.01
GBL,GBL/-SP=GBL
```
This commit is contained in:
Olaf Seibert
2021-04-18 18:31:35 +02:00
parent d0445ef8f4
commit 7bbcbba5f5
10 changed files with 73 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
parse.c
View File

@@ -1133,7 +1133,7 @@ EX_TREE *parse_unary(
sym = lookup_sym(label, &system_st);
}
if (sym != NULL) {
if (sym != NULL && !(sym->flags & SYMBOLFLAG_UNDEFINED)) {
tp = new_ex_tree();
tp->cp = cp;
tp->type = EX_SYM;
@@ -1144,7 +1144,11 @@ EX_TREE *parse_unary(
}
/* The symbol was not found. Create an "undefined symbol"
reference. */
reference. These symbols are freed in free_tree(),
in contrast to the symbol used in EX_SYM.
implicit_gbl() will either make it an implicit global,
or an undefined non-global symbol.
*/
sym = memcheck(malloc(sizeof(SYMBOL)));
sym->label = label;
sym->flags = SYMBOLFLAG_UNDEFINED | local;