51 lines
2.2 KiB
HTML
51 lines
2.2 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<title>Full-speed mode</title>
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<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
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</head>
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<body style="FONT-FAMILY: verdana; BACKGROUND-COLOR: rgb(255,255,255)" alink="#008000"
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link="#008000" vlink="#008000">
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<h2 style="COLOR: rgb(0,128,0)">Full-speed mode</h2>
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<hr size="4">
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<p style="FONT-WEIGHT: bold">Overview:</p>
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<p>Emulation can be run in full-speed (aka unthrottled) mode.</p>
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<p style="FONT-WEIGHT: bold">Details:</p>
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<p>This can be enabled manually or automatically in a variety of ways:</p>
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<ul>
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<li>Permanently enabled by the AppleWin <a href="cfg-config.html">Configuration</a> tab's 'Emulation Speed Control', and setting 'Custom Speed (in MHz)' to 'Fastest'.
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<li>Scroll Lock key: can be configured to toggle normal/full-speed mode, or only enable full-speed when pressed.
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<ul>
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<li>See <a href="cfg-input.html">Input</a> for configuring how Scroll Lock behaves.
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</ul>
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<li>Ctrl-0 & Ctrl-3: can be used to toggle custom/full-speed mode, or set full-speed mode respectively.
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<ul>
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<li>See <a href="keyboard.html">Using the Keyboard</a> for more information.
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</ul>
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<li>When 'Disk access speed' is set to 'Enhanced Speed' (the default), then whenever the Disk][ drive motor is on, the emulator will automatically switch to full-speed (and when the motor is switched off, then the emulator will automatically revert to what the 'Emulation Speed Control' has been set to).
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<ul>
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<li>See <a href="cfg-disk.html">Disk</a> for configuring 'Disk access speed'.
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</ul>
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<li>From the built-in debugger, single-stepping via the 'gg' command.
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</ul>
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<p style="FONT-WEIGHT: bold">Limitations and things to bear in mind:</p>
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<ul>
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<li>Full-speed mode favours speed over video accuracy:
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<ul>
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<li>The Apple II's video is only updated periodically (once a wall-clock 60Hz frame) instead of each opcode.
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<li>Split-mode video (eg. French Touch demos) won't render correctly.
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</ul>
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<li>All sound (speaker, Mockingboard, etc) is muted.
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<li>One of your PC's CPU cores will run at 100%.
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<ul>
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<li>EG. Simply boot the Apple II (or //e) without a disk in drive-1.
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</ul>
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</ul>
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</body>
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</html>
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