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/>.

#include <gtest/gtest.h>

#include "EmulateFixture.h"

TEST_F(EmulateFixture, Lahf)

{

    set_instruction({0x9f});

    write_flags(0xd7);

    emulate();

    ASSERT_EQ(0xd7, read_reg(AH));

}

TEST_F(EmulateFixture, Sahf)

{

    set_instruction({0x9e});

    uint16_t old_flags = CF;

    write_flags(old_flags);

    write_reg(AH, CF | PF | AF);

    emulate();

    ASSERT_EQ(CF | PF | AF | FLAGS_STUCK_BITS, read_flags());

}

TEST_F(EmulateFixture, Pushf)

{

    write_flags(0x00d7);

    write_reg(SP, 0x0100);

    set_instruction({0x9c});

    emulate();

    ASSERT_EQ(read_reg(SP), 0x00fe);

    ASSERT_EQ(0xf0d7, read_mem16(0x00fe, SS));

}

TEST_F(EmulateFixture, Popf)

{

    write_reg(SP, 0x00fe);

    write_mem16(0x00fe, 0x00d7, SS);

    set_instruction({0x9d});

    emulate();

    ASSERT_EQ(read_reg(SP), 0x0100);

    ASSERT_EQ(0xf0d7, read_flags());

}

TEST_F(EmulateFixture, Setalc0)

{

    set_instruction({0xd6});

    emulate();

    ASSERT_EQ(0x0, read_reg(AL));

}

TEST_F(EmulateFixture, Setalc1)

{

    write_flags(CF);

    set_instruction({0xd6});

    emulate();

    ASSERT_EQ(0xff, read_reg(AL));

}