Difference between revisions of "Bucky bit"
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A '''bucky bit''' is a bit set to indicate a modifier key was pressed. The bucky bits are usually sent along with the key that was modified. | A '''bucky bit''' is a bit set to indicate a modifier key was pressed. The bucky bits are usually sent along with the key that was modified. | ||
| − | + | ==Examples== | |
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| + | Some text [[terminal]]s and some [[terminal emulator]]s, have a [[meta key]] to set the most significant bit of the key code that is sent to the host. | ||
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| + | [[X11]] has eight bucky bits: Shift, Lock, Control, Mod1, Mod2, Mod3, Mod4, and Mod5. | ||
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| + | On [[Incompatible Timesharing System|ITS]], a character read from a terminal open in %TOFCI mode has four bucky bits: control, meta, super, and top. The closely related [[SUPDUP]] protocol has a subset: the super bit is not included. | ||
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[[Category: Device Basics]] | [[Category: Device Basics]] | ||
Latest revision as of 13:38, 21 November 2025
A bucky bit is a bit set to indicate a modifier key was pressed. The bucky bits are usually sent along with the key that was modified.
Examples
Some text terminals and some terminal emulators, have a meta key to set the most significant bit of the key code that is sent to the host.
X11 has eight bucky bits: Shift, Lock, Control, Mod1, Mod2, Mod3, Mod4, and Mod5.
On ITS, a character read from a terminal open in %TOFCI mode has four bucky bits: control, meta, super, and top. The closely related SUPDUP protocol has a subset: the super bit is not included.
