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1.1     ! root        1: .\"$Header: ibm5151.4,v 10.1 86/11/19 10:55:38 jg Exp $
        !             2: .\"$Source: /u1/X/libibm/doc/man/RCS/ibm5151.4,v $
        !             3: .\" This file uses -man macros.
        !             4: .TH IBM5151 4 "31 Mar 1986" "Space overwritten by .AC macro" " "
        !             5: .UC 4
        !             6: .AC 1 0 
        !             7: .SH NAME
        !             8: ibm5151, mono \- IBM 5151 Monochrome Display interface
        !             9: .SH SYNOPSIS
        !            10: .B "pseudo-device mono"
        !            11: .SH DESCRIPTION
        !            12: The monochrome display is a standard IBM Personal Computer AT 
        !            13: Monochrome Display and
        !            14: display adapter.
        !            15: The display adapter is accessed through a memory-mapped I/O address space.
        !            16: The display buffer is at address 0xf40b0000.
        !            17: Opening 
        !            18: .I /dev/mono
        !            19: grants direct access to the display buffer and the 
        !            20: monochrome registers in the I/O map.
        !            21: The registers are at the addresses
        !            22: given in the IBM PC/AT Technical Reference Manual, offset by 0xf0000000.
        !            23: .PP
        !            24: Each character on the display has two bytes in the buffer; one contains the
        !            25: character, the other the attributes. The attributes available are reverse
        !            26: video, intense mode, blink mode and underline mode. These are available
        !            27: through escape sequences sent to the display (see below).
        !            28: All other functions are provided through software terminal emulation, 
        !            29: including either 24-line (plus status) mode or 25-line mode, 
        !            30: forward and reverse
        !            31: scrolling and cursor positioning.
        !            32: .PP
        !            33: The escape sequences recognized by the display software, from
        !            34: the termcap entry (in 
        !            35: .IR /etc/termcap ) 
        !            36: for ``ibmmono'', are as follows:
        !            37: .nf
        !            38:        <Esc>-<A>               Cursor up
        !            39:        <Esc>-<C>               Non-destructive space
        !            40:        <Esc>-<H>               Home cursor
        !            41:        <Esc>-<I>               Clear to end of line
        !            42:        <Esc>-<J>               Clear to end of screen
        !            43:        <Esc>-<K>               Clear screen
        !            44:        <Esc>-<L>               Insert line
        !            45:        <Esc>-<M>               Delete line
        !            46:        <Esc>-<W>               Start underline
        !            47:        <Esc>-<Y>               X Y position cursor
        !            48:        <Esc>-<Z>               High intensity
        !            49:        <Esc>-<j>               Save cursor position
        !            50:        <Esc>-<k>               Restore cursor position
        !            51:        <Esc>-<p>               Stand out
        !            52:        <Esc>-<q>               Stand out end
        !            53:        <Esc>-<s>               Status line on/off
        !            54:        <Esc>-<w>               Stop underline
        !            55:        <Esc>-<z>               Low intensity
        !            56: .fi
        !            57: .PP
        !            58: These escape sequences are a superset of the ones recognized by IBM 3101
        !            59: display.
        !            60: .SH FILES
        !            61: /dev/console
        !            62: .br
        !            63: /dev/mono
        !            64: .SH "SEE ALSO"
        !            65: cons(4), ibm6153(4), ibm6155(4), ibmaed(4), keyboard(4), tty(4)
        !            66: .br
        !            67: .SH DIAGNOSTICS
        !            68: None.
        !            69: .SH BUGS
        !            70: Access to the PC/AT I/O and memory busses through 
        !            71: .I /dev/mono
        !            72: is not limited to the monochrome addresses.
        !            73: .PP
        !            74: There should be separate escape sequences to turn the status line on
        !            75: and off.

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