49 lines
1.3 KiB
C#
49 lines
1.3 KiB
C#
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namespace BizHawk.Emulation.Cores.Computers.SinclairSpectrum
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{
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/// <summary>
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/// 128K/+2 ULA
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/// </summary>
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class Screen128 : ULA
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{
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#region Construction
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public Screen128(SpectrumBase machine)
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: base(machine)
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{
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// interrupt
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InterruptStartTime = 3;
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InterruptLength = 36;
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// offsets
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RenderTableOffset = 58;
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ContentionOffset = 6;
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FloatingBusOffset = 1;
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// timing
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ClockSpeed = 3546900;
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FrameCycleLength = 70908;
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ScanlineTime = 228;
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BorderLeftTime = 24;
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BorderRightTime = 24;
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FirstPaperLine = 63;
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FirstPaperTState = 64;
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// screen layout
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Border4T = true;
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Border4TStage = 2;
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ScreenWidth = 256;
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ScreenHeight = 192;
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BorderTopHeight = 48; // 55; // 48;
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BorderBottomHeight = 48; // 56;
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BorderLeftWidth = 48;
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BorderRightWidth = 48;
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ScanLineWidth = BorderLeftWidth + ScreenWidth + BorderRightWidth;
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RenderingTable = new RenderTable(this,
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MachineType.ZXSpectrum128);
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SetupScreenSize();
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}
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#endregion
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}
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}
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