Mercurial > hg > index.cgi
view lwasm/list.c @ 389:2d9b7ae6c329
Throw error if address overflows in extended mode
This may or may not cause extra problems due to sloppiness in dealing with
calculations that overflow in 16 bits. However, presumably it is a good idea
so unless something major pops up, it seems like a good idea.
Thanks to Erik G <erik@6809.org> for the patch.
author | William Astle <lost@l-w.ca> |
---|---|
date | Mon, 13 Jul 2015 21:37:49 -0600 |
parents | 35d4213e6657 |
children | 1ebb5a0b2874 |
line wrap: on
line source
/* list.c Copyright © 2010 William Astle This file is part of LWTOOLS. LWTOOLS is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include <stdio.h> #include <string.h> #include <lw_alloc.h> #include <lw_string.h> #include "lwasm.h" #include "instab.h" void list_symbols(asmstate_t *as, FILE *of); /* Do listing */ void do_list(asmstate_t *as) { line_t *cl, *nl, *nl2; FILE *of = NULL; int i; unsigned char *obytes = NULL; int obytelen = 0; char *tc; if (!(as -> flags & FLAG_LIST)) return; if (as -> list_file) { if (strcmp(as -> list_file, "-") == 0) { of = stdout; } else of = fopen(as -> list_file, "w"); } else of = stdout; if (!of) { fprintf(stderr, "Cannot open list file; list not generated\n"); return; } for (cl = as -> line_head; cl; cl = nl) { char *linespec; nl = cl -> next; if (CURPRAGMA(cl, PRAGMA_NOLIST)) { if (cl -> outputl <= 0) continue; } if (cl -> noexpand_start) { obytelen = 0; int nc = 0; for (nl = cl; nl; nl = nl -> next) { if (nl -> noexpand_start) nc += nl -> noexpand_start; if (nl -> noexpand_end) nc -= nl -> noexpand_end; if (nl -> outputl > 0) obytelen += nl -> outputl; if (nl -> warn) { lwasm_error_t *e; for (e = nl -> warn; e; e = e -> next) { printf("Warning: %s\n", e -> mess); } } if (nc == 0) break; } obytes = lw_alloc(obytelen); nc = 0; for (nl2 = cl; ; nl2 = nl2 -> next) { int i; for (i = 0; i < nl2 -> outputl; i++) { obytes[nc++] = nl2 -> output[i]; } if (nc >= obytelen) break; } if (nl) nl = nl -> next; } else { if (cl -> warn) { lwasm_error_t *e; for (e = cl -> warn; e; e = e -> next) { printf("Warning: %s\n", e -> mess); } } obytelen = cl -> outputl; if (obytelen > 0) { obytes = lw_alloc(obytelen); memmove(obytes, cl -> output, cl -> outputl); } } if ((cl -> len < 1 && cl -> dlen < 1) && obytelen < 1 && (cl -> symset == 1 || cl -> sym == NULL) ) { if (cl -> soff >= 0) { fprintf(of, "%04Xs ", cl -> soff & 0xffff); } else if (cl -> dshow >= 0) { if (cl -> dsize == 1) { fprintf(of, " %02X ", cl -> dshow & 0xff); } else { fprintf(of, " %04X ", cl -> dshow & 0xff); } } else if (cl -> dptr) { lw_expr_t te; te = lw_expr_copy(cl -> dptr -> value); as -> exportcheck = 1; as -> csect = cl -> csect; lwasm_reduce_expr(as, te); as -> exportcheck = 0; if (lw_expr_istype(te, lw_expr_type_int)) { fprintf(of, " %04X ", lw_expr_intval(te) & 0xffff); } else { fprintf(of, " ???? "); } lw_expr_destroy(te); } else { fprintf(of, " "); } } else { lw_expr_t te; if (instab[cl -> insn].flags & lwasm_insn_setdata) te = lw_expr_copy(cl -> daddr); else te = lw_expr_copy(cl -> addr); as -> exportcheck = 1; as -> csect = cl -> csect; lwasm_reduce_expr(as, te); as -> exportcheck = 0; // fprintf(of, "%s\n", lw_expr_print(te)); fprintf(of, "%04X%c", lw_expr_intval(te) & 0xffff, ((cl -> inmod || (cl -> dlen != cl -> len)) && instab[cl -> insn].flags & lwasm_insn_setdata) ? '.' : ' '); lw_expr_destroy(te); for (i = 0; i < obytelen && i < 8; i++) { fprintf(of, "%02X", obytes[i]); } for (; i < 8; i++) { fprintf(of, " "); } fprintf(of, " "); } /* the format specifier below is deliberately chosen so that the start of the line text is at a multiple of 8 from the start of the list line */ #define max_linespec_len 17 // trim "include:" if it appears linespec = cl -> linespec; if ((strlen(linespec) > 8) && (linespec[7] == ':')) linespec += 8; while (*linespec == ' ') linespec++; fprintf(of, "(%*.*s):%05d ", max_linespec_len, max_linespec_len, linespec, cl->lineno); if (CURPRAGMA(cl, PRAGMA_CC)) { as->cycle_total = 0; } /* display cycle counts */ char s[64] = ""; if (CURPRAGMA(cl, PRAGMA_C) || CURPRAGMA(cl, PRAGMA_CD)) { if (cl->cycle_base != 0) { char ch = '('; if (CURPRAGMA(cl, PRAGMA_6809)) ch = '['; if (CURPRAGMA(cl, PRAGMA_CD) && cl->cycle_flags & CYCLE_ADJ) { sprintf(s, "%c%d+%d", ch, cl->cycle_base, cl->cycle_adj); /* detailed cycle count */ } else { sprintf(s, "%c%d", ch, cl->cycle_base + cl->cycle_adj); /* normal cycle count*/ } if (cl->cycle_flags & CYCLE_ESTIMATED) strcat(s, "+?"); as->cycle_total += cl->cycle_base + cl->cycle_adj; ch = ')'; if (CURPRAGMA(cl, PRAGMA_6809)) ch = ']'; sprintf(s, "%s%c", s, ch); } } fprintf(of, "%-8s", s); if (CURPRAGMA(cl, PRAGMA_CT)) { if (cl->cycle_base != 0) { fprintf(of, "%-8d", as->cycle_total); } else { fprintf(of, " "); } } i = 0; for (tc = cl -> ltext; *tc; tc++) { if ((*tc) == '\t') { if (i % 8 == 0) { i += 8; fprintf(of, " "); } else { while (i % 8) { fputc(' ', of); i++; } } } else { fputc(*tc, of); i++; } } fputc('\n', of); if (obytelen > 8) { for (i = 8; i < obytelen; i++) { if (i % 8 == 0) { if (i != 8) fprintf(of, "\n "); else fprintf(of, " "); } fprintf(of, "%02X", obytes[i]); } if (i > 8) fprintf(of, "\n"); } lw_free(obytes); obytes = NULL; } if ((as -> flags & FLAG_SYMBOLS)) list_symbols(as, of); }