lib/calculator/get_step.cc

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//
// canola - canon canola 1614p emulator
// Copyright (C) 2012 Peter Miller
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License, version 3, as
// published by the Free Software Foundation.
//
// 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 <lib/calculator.h>
#include <lib/sizeof.h>


bool
calculator::get_step(int addr, unsigned char &prog, location::pointer &where)
    const
{
    if (addr < 0 || (size_t)addr >= SIZEOF(programme))
        return false;
    prog = programme[addr];
    if (!prog)
        return false;
    where = programme_location[addr];
    return true;
}