public void FirstSyncPulseGenerationWorksAsExpected()
        {
            // --- Arrange
            const int  PILOT_PL           = TapeDataBlockPlayer.PILOT_PL;
            const int  HEADER_PILOT_COUNT = TapeDataBlockPlayer.HEADER_PILOT_COUNT;
            const int  SYNC_1_PL          = TapeDataBlockPlayer.SYNC_1_PL;
            const long PILOT_END          = PILOT_PL * HEADER_PILOT_COUNT;
            const long START = 123456789L;

            var player = TzxPlayerHelper.CreatePlayer("JetSetWilly.tzx");

            player.InitPlay(START);

            // --- This is a standard ROM header data block
            var block = player.CurrentBlock as TzxStandardSpeedDataBlock;

            // --- Skip all pilot pulses
            for (long pos = 0; pos < PILOT_END; pos += 50)
            {
                block.GetEarBit(START + pos);
            }

            // --- Act/Assert
            for (var pos = PILOT_END + 50; pos < PILOT_END + SYNC_1_PL; pos += 50)
            {
                var earBit = block.GetEarBit(START + pos);
                earBit.ShouldBeFalse();
                block.PlayPhase.ShouldBe(PlayPhase.Sync);
            }
        }
Esempio n. 2
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        public void PlayMovesToNextBlock()
        {
            // --- Arrange
            var player = TzxPlayerHelper.CreatePlayer(TAPESET);

            player.InitPlay(100);
            var currentBlock = player.CurrentBlock as TzxStandardSpeedDataBlock;

            // --- Act
            var indexBefore = player.CurrentBlockIndex;

            currentBlock.CompleteBlock();
            var lastTact = currentBlock.LastTact;

            player.GetEarBit(lastTact);
            var indexAfter = player.CurrentBlockIndex;

            // --- Assert
            indexBefore.ShouldBe(0);
            indexAfter.ShouldBe(1);
            currentBlock = player.CurrentBlock as TzxStandardSpeedDataBlock;
            currentBlock.ShouldNotBeNull();
            currentBlock.PlayPhase.ShouldBe(PlayPhase.Pilot);
            currentBlock.StartTact.ShouldBe(lastTact);
            currentBlock.ByteIndex.ShouldBe(0);
            currentBlock.BitMask.ShouldBe((byte)0x80);
        }
        public void SecondPilotPulseGenerationWorks()
        {
            // --- Arrange
            const int PILOT_PL = TapeDataBlockPlayer.PILOT_PL;

            const long START  = 123456789L;
            var        player = TzxPlayerHelper.CreatePlayer("JetSetWilly.tzx");

            player.InitPlay(START);

            // --- This is a standard ROM header data block
            var block = player.CurrentBlock as TzxStandardSpeedDataBlock;

            // --- Skip EAR bits of the first pluse
            for (long pos = 0; pos < PILOT_PL; pos += 50)
            {
                block.GetEarBit(START + pos);
            }

            // --- Act/Assert
            for (long pos = PILOT_PL; pos < 2 * PILOT_PL; pos += 50)
            {
                var earBit = block.GetEarBit(START + pos);
                earBit.ShouldBeFalse();
                block.PlayPhase.ShouldBe(PlayPhase.Pilot);
            }
        }
        /// <summary>
        /// Reads nad positions a standard speed data block to its data area
        /// </summary>
        /// <returns>Standard speed data block</returns>
        private static TzxStandardSpeedDataBlock ReadAndPositionToDataSection()
        {
            const int  PILOT_PL           = TapeDataBlockPlayer.PILOT_PL;
            const int  HEADER_PILOT_COUNT = TapeDataBlockPlayer.HEADER_PILOT_COUNT;
            const int  SYNC_1_PL          = TapeDataBlockPlayer.SYNC_1_PL;
            const int  SYNC_2_PL          = TapeDataBlockPlayer.SYNC_2_PL;
            const long PILOT_END          = PILOT_PL * HEADER_PILOT_COUNT;
            const long START = 123456789L;

            var player = TzxPlayerHelper.CreatePlayer("JetSetWilly.tzx");

            player.InitPlay(START);

            // --- This is a standard ROM header data block
            var block = player.CurrentBlock as TzxStandardSpeedDataBlock;

            // --- Skip all pilot pulses + the first sync pulse
            for (long pos = 0; pos < PILOT_END + SYNC_1_PL; pos += 50)
            {
                block.GetEarBit(START + pos);
            }
            // --- Skip the second sync pulse
            for (var pos = PILOT_END + SYNC_1_PL + 50; pos < PILOT_END + SYNC_1_PL + SYNC_2_PL; pos += 50)
            {
                block.GetEarBit(START + pos);
            }
            return(block);
        }
        /// <summary>
        /// Tests a pilot pulse
        /// </summary>
        /// <param name="pulseIndex">The index of the pilor pulse</param>
        private void TestPilotPulsePlayback(int pulseIndex)
        {
            // --- Arrange
            const int  PILOT_PL = TapeDataBlockPlayer.PILOT_PL;
            const long START    = 123456789L;

            var player = TzxPlayerHelper.CreatePlayer("JetSetWilly.tzx");

            player.InitPlay(START);

            // --- This is a standard ROM header data block
            var block        = player.CurrentBlock as TzxStandardSpeedDataBlock;
            var prevPulseEnd = PILOT_PL * (pulseIndex - 1);

            // --- Skip EAR bits of the previous pulses
            for (long pos = 0; pos < prevPulseEnd; pos += 50)
            {
                block.GetEarBit(START + pos);
            }

            // --- Act/Assert
            for (var pos = prevPulseEnd + 50; pos < prevPulseEnd + PILOT_PL; pos += 50)
            {
                var earBit = block.GetEarBit(START + pos);
                earBit.ShouldBe(pulseIndex % 2 == 1);
                block.PlayPhase.ShouldBe(PlayPhase.Pilot);
            }
        }
Esempio n. 6
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        public void InitPlayWorksAsExpected()
        {
            // --- Arrange
            var player = TzxPlayerHelper.CreatePlayer(TAPESET);

            // --- Act
            player.InitPlay(100);

            // --- Assert
            player.PlayPhase.ShouldBe(PlayPhase.None);
            player.StartTact.ShouldBe(100);
            player.CurrentBlockIndex.ShouldBe(0);
            player.CurrentBlock.ShouldBeOfType <TzxStandardSpeedDataBlock>();
        }
Esempio n. 7
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        public void TzxFileCanBeReadSuccessfully()
        {
            // --- Act
            var player = TzxPlayerHelper.CreatePlayer(TAPESET);

            // --- Assert
            player.DataBlocks.Count.ShouldBe(9);
            player.DataBlocks[0].ShouldBeOfType <TzxTextDescriptionDataBlock>();
            for (var i = 1; i < 9; i++)
            {
                player.DataBlocks[i].ShouldBeOfType <TzxStandardSpeedDataBlock>();
            }
            player.Eof.ShouldBeFalse();
        }
Esempio n. 8
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        public void InitPlayInitializesTheFirstDataBlock()
        {
            // --- Arrange
            var player = TzxPlayerHelper.CreatePlayer(TAPESET);

            // --- Act
            player.InitPlay(100);

            // --- Assert
            var currentBlock = player.CurrentBlock as TzxStandardSpeedDataBlock;

            currentBlock.ShouldNotBeNull();
            currentBlock.PlayPhase.ShouldBe(PlayPhase.Pilot);
            currentBlock.StartTact.ShouldBe(player.StartTact);
            currentBlock.ByteIndex.ShouldBe(0);
            currentBlock.BitMask.ShouldBe((byte)0x80);
        }
Esempio n. 9
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        public void PlayDoesNotSetEofUntilEnd()
        {
            // --- Arrange
            var player = TzxPlayerHelper.CreatePlayer(TAPESET);

            player.InitPlay(100);
            while (player.CurrentBlockIndex < 6) // Block 6 is a middle block
            {
                var currentBlock = player.CurrentBlock as TzxStandardSpeedDataBlock;
                currentBlock.CompleteBlock();
                var lastTact = currentBlock.LastTact;
                player.GetEarBit(lastTact);
            }

            // --- Act
            var lastBlock = player.CurrentBlock as TzxStandardSpeedDataBlock;

            lastBlock.ReadUntilPause();

            // --- Assert
            player.Eof.ShouldBeFalse();
        }
Esempio n. 10
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        public void PlaySetsEofAtTheLastPlayableBlock()
        {
            // --- Arrange
            var player = TzxPlayerHelper.CreatePlayer(TAPESET);

            player.InitPlay(100);
            for (var i = 0; i < 8; i++) // Block 7 is the last
            {
                var currentBlock = player.CurrentBlock as TzxStandardSpeedDataBlock;
                currentBlock.CompleteBlock();
                var lastTact = currentBlock.LastTact;
                player.GetEarBit(lastTact);
            }

            // --- Act
            var lastBlock = player.CurrentBlock as TzxStandardSpeedDataBlock;
            var lastPos   = lastBlock.ReadUntilPause();

            player.GetEarBit(lastPos);

            // --- Assert
            player.Eof.ShouldBeTrue();
        }