mirror of
https://github.com/libretro/scummvm.git
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106 lines
2.5 KiB
C++
106 lines
2.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "glk/frotz/processor.h"
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namespace Glk {
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namespace Frotz {
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void Processor::z_add() {
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store((zword)((short)zargs[0] + (short)zargs[1]));
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}
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void Processor::z_and() {
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store((zword)(zargs[0] & zargs[1]));
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}
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void Processor::z_art_shift() {
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if ((short)zargs[1] > 0)
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store((zword)((short)zargs[0] << (short)zargs[1]));
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else
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store((zword)((short)zargs[0] >> - (short)zargs[1]));
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}
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void Processor::z_div() {
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if (zargs[1] == 0)
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runtimeError(ERR_DIV_ZERO);
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store((zword)((short)zargs[0] / (short)zargs[1]));
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}
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void Processor::z_je() {
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branch(
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zargc > 1 && (zargs[0] == zargs[1] || (
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zargc > 2 && (zargs[0] == zargs[2] || (
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zargc > 3 && (zargs[0] == zargs[3])))))
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);
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}
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void Processor::z_jg() {
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branch((short)zargs[0] > (short)zargs[1]);
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}
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void Processor::z_jl() {
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branch((short)zargs[0] < (short)zargs[1]);
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}
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void Processor::z_jz() {
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branch((short)zargs[0] == 0);
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}
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void Processor::z_log_shift() {
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if ((short)zargs[1] > 0)
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store((zword)(zargs[0] << (short)zargs[1]));
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else
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store((zword)(zargs[0] >> - (short)zargs[1]));
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}
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void Processor::z_mod() {
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if (zargs[1] == 0)
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runtimeError(ERR_DIV_ZERO);
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store((zword)((short)zargs[0] % (short)zargs[1]));
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}
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void Processor::z_mul() {
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store((zword)((short)zargs[0] * (short)zargs[1]));
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}
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void Processor::z_not() {
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store((zword)~zargs[0]);
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}
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void Processor::z_or() {
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store((zword)(zargs[0] | zargs[1]));
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}
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void Processor::z_sub() {
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store((zword)((short)zargs[0] - (short)zargs[1]));
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}
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void Processor::z_test() {
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branch((zargs[0] & zargs[1]) == zargs[1]);
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}
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} // End of namespace Frotz
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} // End of namespace Glk
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