Bucky bit: Difference between revisions
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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== | |||
Some text [[terminal]]s, and some [[terminal emulator]]s, has 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 [[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]] | ||
Revision as of 11:52, 20 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, has 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.
