Subversion Repositories s80186

// Copyright Jamie Iles, 2017

//

// This file is part of s80x86.

//

// s80x86 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.

//

// s80x86 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 s80x86.  If not, see <http://www.gnu.org/licenses/>.

void EmulatorPimpl::loopnze0()

{

    int16_t displacement = static_cast<int8_t>(fetch_byte());

    registers->set(CX, registers->get(CX) - 1);

    if (registers->get(CX) != 0 && !registers->get_flag(ZF)) {

        registers->set(IP, registers->get(IP) + instr_length + displacement);

        jump_taken = true;

    }

}