view lwasm/insn_inh.c @ 354:433851a26794

Make base prefix sigils error out if no number following Prefix sigils (0x, %, &, @, $) were parsing to 0 if there was no number following the prefix. Make parsing fail if that is the case. Note that in a couple of obscure cases, it may give "undefined symbol" rather than "bad operand" due to some interactions with other unfortunate features of the source format.
author William Astle <lost@l-w.ca>
date Fri, 15 May 2015 15:47:26 -0600
parents 507f442dc71e
children 35d4213e6657
line wrap: on
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/*
insn_inh.c
Copyright © 2010 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/>.

*/

#include "lwasm.h"
#include "instab.h"

PARSEFUNC(insn_parse_inh)
{
	l -> len = OPLEN(instab[l -> insn].ops[0]);
	skip_operand(p);
}

EMITFUNC(insn_emit_inh)
{
	lwasm_emitop(l, instab[l -> insn].ops[0]);
}

PARSEFUNC(insn_parse_inh6800)
{
	// there may be two operations here so check for both
	l -> len = OPLEN(instab[l -> insn].ops[0]);
	if (instab[l -> insn].ops[1] >= 0)
		l -> len += OPLEN(instab[l -> insn].ops[1]);
}

EMITFUNC(insn_emit_inh6800)
{
	// there may be two operations here so check for both
	lwasm_emitop(l, instab[l -> insn].ops[0]);
	if (instab[l -> insn].ops[1] >= 0)
		lwasm_emitop(l, instab[l -> insn].ops[1]);
}