Mercurial > hg > index.cgi
view lwasm/insn_logicmem.c @ 265:6f4c4d59666f
Make lwar use the "b" flag when opening files.
Due to the dumbness on Windows systems related to text vs. binary file
distinctions, one needs to add 'b' to fopen() calls when dealing with binary
files.
author | William Astle <lost@l-w.ca> |
---|---|
date | Sun, 10 Feb 2013 19:22:24 -0700 |
parents | b78b2f1e011e |
children | 8764142b3192 |
line wrap: on
line source
/* insn_logicmem.c Copyright © 2009 William Astle This file is part of LWASM. LWASM 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/>. Contains code for handling logic/mem instructions */ #include <ctype.h> #include <stdio.h> #include <string.h> #include <lw_expr.h> #include "lwasm.h" #include "instab.h" extern void insn_parse_gen_aux(asmstate_t *as, line_t *l, char **optr, int elen); extern void insn_resolve_gen_aux(asmstate_t *as, line_t *l, int force, int elen); extern void insn_emit_gen_aux(asmstate_t *as, line_t *l, int extra); // for aim, oim, eim, tim PARSEFUNC(insn_parse_logicmem) { // const char *p2; lw_expr_t s; if (**p == '#') (*p)++; s = lwasm_parse_expr(as, p); if (!s) { lwasm_register_error(as, l, "Bad operand"); return; } lwasm_save_expr(l, 100, s); if (**p != ',' && **p != ';') { lwasm_register_error(as, l, "Bad operand"); return; } (*p)++; // now we have a general addressing mode - call for it insn_parse_gen_aux(as, l, p, 1); } RESOLVEFUNC(insn_resolve_logicmem) { if (l -> len != -1) return; insn_resolve_gen_aux(as, l, force, 1); } EMITFUNC(insn_emit_logicmem) { lw_expr_t e; int v; e = lwasm_fetch_expr(l, 100); if (!lw_expr_istype(e, lw_expr_type_int)) { lwasm_register_error(as, l, "Immediate byte must be fully resolved"); return; } v = lw_expr_intval(e); /* if (v < -128 || v > 255) { fprintf(stderr, "BYTE: %d\n", v); lwasm_register_error(as, l, "Byte overflow"); return; } */ insn_emit_gen_aux(as, l, v & 0xff); }