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view lwasm/insn_logicmem.c @ 229:59a138df0401
Fixed additional parsing problems with pseudo ops
author | lost |
---|---|
date | Fri, 12 Jun 2009 01:31:18 +0000 |
parents | bae1e3ecdce1 |
children |
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/* 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 <config.h> #include <ctype.h> #include <stdio.h> #include <string.h> #include "lwasm.h" #include "instab.h" #include "expr.h" extern void insn_gen_aux(asmstate_t *as, lwasm_line_t *l, char **optr, int opnum, int extra); // for aim, oim, eim, tim // the immediate operand must be constant on pass 2 OPFUNC(insn_logicmem) { int rval, v1; const char *p2; lwasm_expr_stack_t *s; if (**p == '#') (*p)++; rval = lwasm_expr_result2(as, l, p, 0, &v1, 1); if (rval != 0) v1 = 0; if (rval == 1 && as -> passnum == 2) register_error(as, l, 2, "Illegal external or intersegment reference"); if (v1 < -128 || v1 > 255) register_error(as, l, 2, "Byte overflow"); if (**p != ',' && **p != ';') { register_error(as, l, 1, "Bad operand"); return; } (*p)++; // now we have a general addressing mode - call for it insn_gen_aux(as, l, p, opnum, v1 & 0xff); }