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Annotation of 43BSDReno/share/man/man4/man4.hp300/ite.4, revision 1.1

1.1     ! root        1: .\" Copyright (c) 1990 The Regents of the University of California.
        !             2: .\" All rights reserved.
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        !             4: .\" This code is derived from software contributed to Berkeley by
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        !             6: .\" Science Department.
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        !            22: .\"    @(#)ite.4       5.1 (Berkeley) 6/29/90
        !            23: .\"
        !            24: .TH ITE 4 "June 29, 1990"
        !            25: .UC 7
        !            26: .SH NAME
        !            27: ite \- HP Internal Terminal Emulator
        !            28: .SH DESCRIPTION
        !            29: TTY special files of the form ``ttye?''
        !            30: are interfaces to the HP ITE for bit-mapped displays as implemented under BSD.
        !            31: An ITE is the main system console on most HP300 workstations and
        !            32: is the mechanism through which a user communicates with the machine.
        !            33: If more than one display exists on a system,
        !            34: any or all can be used as ITEs with the limitation that only the first
        !            35: one opened will have a keyboard (since only one keyboard is supported).
        !            36: .PP
        !            37: ITE devices use the HP-UX ``300h''
        !            38: .IR termcap (5)
        !            39: or
        !            40: .I terminfo
        !            41: entries.
        !            42: However, as currently implemented,
        !            43: the ITE does not support the full range of HP-UX capabilities for this device.
        !            44: Missing are multiple colors, underlining, blinking, softkeys,
        !            45: programmable tabs, scrolling memory and keyboard arrow keys.
        !            46: The keyboard does not have any of the international character
        !            47: support of HP's NLS system.
        !            48: It does use the left and right
        !            49: .I "extend char"
        !            50: keys as meta keys, in that it will set the eighth bit of the character code.
        !            51: .PP
        !            52: Upon booting, the kernel will first look for an ITE device
        !            53: to use as the system console (/dev/console).
        !            54: If a display exists at any hardware address, it will be the console.
        !            55: The kernel looks for, in order:
        !            56: a 98544, 98545, or 98547 Topcat display,
        !            57: a 98700 Gatorbox at a supported address (see
        !            58: .IR gb (4)),
        !            59: or a 98720 Renaissance at a supported address (see
        !            60: .IR rb (4)).
        !            61: Currently there is no ITE support for the
        !            62: 98548, 98549, 98550 and 98556 boards.
        !            63: .PP
        !            64: When activated as an ITE (special file opened),
        !            65: all displays go through a standard initialization sequence.
        !            66: The frame buffer is cleared,
        !            67: the ROM fonts are unpacked and loaded into off-screen storage and
        !            68: a cursor appears.
        !            69: The ITE initialization routine also sets the colormap entry used to white.
        !            70: Variable colors are not used, mainly for reasons of simplicity.
        !            71: The font pixels are all set to 0xff and the colormap entry corresponding
        !            72: to all planes is set to R=255, G=255 and B=255.
        !            73: The actual number of planes used to display the characters depends
        !            74: on the hardware installed.
        !            75: Finally, if the keyboard HIL device is not already assigned to another
        !            76: ITE device, it is placed in ``cooked'' mode and assigned to this ITE.
        !            77: .PP
        !            78: On most systems,
        !            79: a display is used both as an ITE (/dev/ttye? aka /dev/console)
        !            80: and as a graphics device (/dev/grf?).
        !            81: In this environment,
        !            82: there is some interaction between the two uses that should be noted.
        !            83: For example, opening /dev/grf0 will deactivate the ITE,
        !            84: that is, write over whatever may be on the ITE display.
        !            85: When the graphics application is finished and /dev/grf0 closed,
        !            86: the ITE will be reinitialized with the frame buffer cleared
        !            87: and the ITE colormap installed.
        !            88: .SH SEE ALSO
        !            89: grf(4), hil(4), gb(4), rb(4), tc(4)
        !            90: .SH DIAGNOSTICS
        !            91: None under BSD.

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