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<!DOCTYPE html>
<html dir="ltr" lang="en">
    <head>
        <meta charset='utf-8'>
        <title>X</title>
    </head>
    <body>

        <a href="index.html">Tools Index</a>

        <h1>X</h1>


        <h2>Install</h2>


        <h3>Xorg</h3>

        <pre>
        $ sudo prt-get depinst xorg-server \
             xorg-xinit \
             xorg-xrdb \
             xorg-xdpyinfo \
             xorg-xauth \
             xorg-xmodmap \
             xorg-xrandr \
             xorg-xgamma \
             xorg-xf86-input-evdev \
             xorg-xf86-input-synaptics \
             xsel \
             xkeyboard-config
        </pre>

        <h3>Fonts</h3>

        <pre>
        $ sudo prt-get depinst xorg-font-util \
             xorg-font-alias \
             xorg-font-dejavu-ttf \
             xorg-font-cursor-misc \
             xorg-font-misc-misc \
             console-font-terminus \
             xorg-font-terminus \
             xorg-font-mutt-misc

        $ prt-get search xorg-font-bitstream | xargs sudo prt-get depinst
        $ prt-get search xorg-font-bh | xargs sudo prt-get depinst
        </pre>


        <pre>
        $ prt-get search otf- | xargs sudo prt-get depinst
        $ prt-get depinst otf-sourcecode
        </pre>

        <h3>Utilities</h3>

        <pre>
        $ sudo prt-get depinst \
            alsa-utils \
            libdrm \
            mesa3d \
            ffmpeg \
            gstreamer \
            gstreamer-vaapi \
            gst-plugins-base \
            gst-plugins-good \
            gst-plugins-bad \
            gst-plugins-ugly \
            cmus \
            dmenu \
            st \
            gparted \
            gimp \
            libreoffice \
            ca-certificates \
	    linux-pam \
	    gstreamer \
	    libgd \
            icu \
	    syndaemon \
	    firefox
        </pre>

        <h3>Window Managers</h3>

	<pre>
        $ sudo prt-get depinst \
		openbox \
		dwm \
         	spectrwm \
	 	mate
	</pre>

        <h2>Configure</h2>

        <h3>Local xinitrc</h3>

        <p>Local xinitrc configuration: <a href="conf/etc/skel/.xinitrc">/etc/skel/.xinitrc</a>;</p>

        <pre>
	## Start the window manager

	xrandr -s 1366x768
	#xrandr --dpi 100
	#xrandr --output eDP1 --mode 1366x768
	#xgamma -gamma 0.8
	#syndaemon -d
	setxkbmap dvorak

	#exec openbox-session
	#exec dwm
	exec spectrwm
	#exec start-mate
        </pre>

        <h3>Global xinitrc</h3>
        <p>Global xinitrc configuration: <a href="conf/etc/X11/xinit/xinitrc">/usr/etc/X11/xinit/xinitrc</a>;</p>

        <pre>
        #!/bin/sh

        userresources=$HOME/.Xresources
        usermodmap=$HOME/.Xmodmap
        sysresources=/etc/X11/xinit/.Xresources
        sysmodmap=/etc/X11/xinit/.Xmodmap

        # merge in defaults and keymaps

        if [ -f $sysresources ]; then
            xrdb -merge $sysresources

        fi

        if [ -f $sysmodmap ]; then
            xmodmap $sysmodmap
        fi

        if [ -f "$userresources" ]; then
            xrdb -merge "$userresources"

        fi

        if [ -f "$usermodmap" ]; then
            xmodmap "$usermodmap"
        fi

        # start some nice programs

        if [ -d /etc/X11/xinit/xinitrc.d ] ; then
         for f in /etc/X11/xinit/xinitrc.d/?*.sh ; do
          [ -x "$f" ] && . "$f"
         done
         unset f
        fi
        </pre>

        <h3 id="confkeyboard">Global keyboard config </h3>

	<p>Xorg global default keyboard configuration; <a href="conf/etc/X11/xorg.conf.d/10-keyboard.conf">/etc/X11/xorg.conf.d/10-keyboard.conf</a></p>

        <pre>
         Section "InputClass"
             Identifier             "Keyboard Defaults"
             MatchIsKeyboard       "yes"
             Option               "XkbLayout" "dvorak"
         EndSection
        </pre>

	<p>Xorg synaptics configuration; <a href="/etc/X11/xorg.conf.d/50-synaptics.conf">/etc/X11/xorg.conf.d/50-synaptics.conf</a></p>

        <pre>
        # Example xorg.conf.d snippet that assigns the touchpad driver
        # to all touchpads. See xorg.conf.d(5) for more information on
        # InputClass.
        # DO NOT EDIT THIS FILE, your distribution will likely overwrite
        # it when updating. Copy (and rename) this file into
        # /etc/X11/xorg.conf.d first.
        # Additional options may be added in the form of
        #   Option "OptionName" "value"
        #
        Section "InputClass"
                Identifier "touchpad catchall"
                Driver "synaptics"
                MatchIsTouchpad "on"
        # This option is recommend on all Linux systems using evdev, but cannot be
        # enabled by default. See the following link for details:
        # http://who-t.blogspot.com/2010/11/how-to-ignore-configuration-errors.html
        #       MatchDevicePath "/dev/input/event*"
                Option "TapButton1" "1"
                Option "TapButton2" "3"
                Option "TapButton3" "2"
                Option "VertEdgeScroll" "on"
                Option "VertTwoFingerScroll" "on"
                Option "HorizEdgeScroll" "on"
                Option "HorizTwoFingerScroll" "on"
        EndSection

        Section "InputClass"
                Identifier "touchpad ignore duplicates"
                MatchIsTouchpad "on"
                MatchOS "Linux"
                MatchDevicePath "/dev/input/mouse*"
                Option "Ignore" "on"
        EndSection

        # This option enables the bottom right corner to be a right button on clickpads
        # and the right and middle top areas to be right / middle buttons on clickpads
        # with a top button area.
        # This option is only interpreted by clickpads.
        Section "InputClass"
                Identifier "Default clickpad buttons"
                MatchDriver "synaptics"
                Option "SoftButtonAreas" "50% 0 82% 0 0 0 0 0"
                Option "SecondarySoftButtonAreas" "58% 0 0 15% 42% 58% 0 15%"
        EndSection

        # This option disables software buttons on Apple touchpads.
        # This option is only interpreted by clickpads.
        Section "InputClass"
                Identifier "Disable clickpad buttons on Apple touchpads"
                MatchProduct "Apple|bcm5974"
                MatchDriver "synaptics"
                Option "SoftButtonAreas" "0 0 0 0 0 0 0 0"
        EndSection
        </pre>

        <h2>Window Managers</h2>

        <h3>Spectrwm</h3>

        <p>Edit ~/.spectrwm.conf</p>

        <pre>
        program[term] = st
        bar_enabled = 1
        bar_action = conky
        </pre>

        <p>Edit ~/.conkyrc</p>

        <pre>
        out_to_x no
        out_to_console yes
        update_interval 1.0
        total_run_times 0
        use_spacer none
        TEXT
        </pre>

        <a href="index.html">Tools Index</a>

        <p>
        This is part of the Hive System Documentation.
        Copyright (C) 2018
        Hive Team.
        See the file <a href="../fdl-1.3-standalone.html">Gnu Free Documentation License</a> for copying conditions.</p>
    </body>
</html>
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                             
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Mu - linux/304screen.subx</title>
<meta name="Generator" content="Vim/8.2">
<meta name="plugin-version" content="vim8.1_v2">
<meta name="syntax" content="none">
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a { color:inherit; }
* { font-size:12pt; font-size: 1em; }
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<body onload='JumpToLine();'>
<a href='https://github.com/akkartik/mu/blob/main/linux/304screen.subx'>https://github.com/akkartik/mu/blob/main/linux/304screen.subx</a>
<pre id='vimCodeElement'>
<span id="L1" class="LineNr">  1 </span><span class="subxComment"># Primitives for screen control.</span>
<span id="L2" class="LineNr">  2 </span><span class="subxComment"># Require Linux and a modern terminal.</span>
<span id="L3" class="LineNr">  3 </span>
<span id="L4" class="LineNr">  4 </span>== code
<span id="L5" class="LineNr">  5 </span>
<span id="L6" class="LineNr">  6 </span><span class="subxFunction">enable-screen-grid-mode</span>:
<span id="L7" class="LineNr">  7 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L8" class="LineNr">  8 </span>    55/push-ebp
<span id="L9" class="LineNr">  9 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L10" class="LineNr"> 10 </span>    <span class="subxComment">#</span>
<span id="L11" class="LineNr"> 11 </span>    (<a href='115write-byte.subx.html#L81'>flush</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span>)
<span id="L12" class="LineNr"> 12 </span>    (<a href='115write-byte.subx.html#L81'>flush</a> <span class="SpecialChar"><a href='116write-buffered.subx.html#L209'>Stderr</a></span>)
<span id="L13" class="LineNr"> 13 </span>    <span class="subxComment"># switch to second screen buffer</span>
<span id="L14" class="LineNr"> 14 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L15" class="LineNr"> 15 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[?1049h&quot;</span>)
<span id="L16" class="LineNr"> 16 </span>    <span class="subxComment">#</span>
<span id="L17" class="LineNr"> 17 </span>    (<a href='304screen.subx.html#L75'>clear-real-screen</a>)
<span id="L18" class="LineNr"> 18 </span><span class="Constant">$enable-screen-grid-mode:end</span>:
<span id="L19" class="LineNr"> 19 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L20" class="LineNr"> 20 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L21" class="LineNr"> 21 </span>    5d/pop-to-ebp
<span id="L22" class="LineNr"> 22 </span>    c3/return
<span id="L23" class="LineNr"> 23 </span>
<span id="L24" class="LineNr"> 24 </span><span class="subxFunction">enable-screen-type-mode</span>:
<span id="L25" class="LineNr"> 25 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L26" class="LineNr"> 26 </span>    55/push-ebp
<span id="L27" class="LineNr"> 27 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L28" class="LineNr"> 28 </span>    <span class="subxComment"># switch to first screen buffer</span>
<span id="L29" class="LineNr"> 29 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L30" class="LineNr"> 30 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[?1049l&quot;</span>)
<span id="L31" class="LineNr"> 31 </span><span class="Constant">$enable-screen-type-mode:end</span>:
<span id="L32" class="LineNr"> 32 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L33" class="LineNr"> 33 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L34" class="LineNr"> 34 </span>    5d/pop-to-ebp
<span id="L35" class="LineNr"> 35 </span>    c3/return
<span id="L36" class="LineNr"> 36 </span>
<span id="L37" class="LineNr"> 37 </span><span class="subxFunction">real-screen-size</span>:  <span class="subxComment"># -&gt; nrows/eax: int, ncols/ecx: int</span>
<span id="L38" class="LineNr"> 38 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L39" class="LineNr"> 39 </span>    55/push-ebp
<span id="L40" class="LineNr"> 40 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L41" class="LineNr"> 41 </span>    <span class="subxS1Comment"># . save registers</span>
<span id="L42" class="LineNr"> 42 </span>    52/push-edx
<span id="L43" class="LineNr"> 43 </span>    53/push-ebx
<span id="L44" class="LineNr"> 44 </span>    56/push-esi
<span id="L45" class="LineNr"> 45 </span>    57/push-edi
<span id="L46" class="LineNr"> 46 </span>    <span class="subxComment">#</span>
<span id="L47" class="LineNr"> 47 </span>    (<a href='304screen.subx.html#L424'>_maybe-open-terminal</a>)
<span id="L48" class="LineNr"> 48 </span>    <span class="subxComment"># var window-size-info/esi: (addr winsize)</span>
<span id="L49" class="LineNr"> 49 </span>    <span class="subxComment"># winsize is a type from the Linux kernel. We don't care how large it is.</span>
<span id="L50" class="LineNr"> 50 </span>    81 5/subop/subtract %esp 0x40/imm32
<span id="L51" class="LineNr"> 51 </span>    89/&lt;- %esi 4/r32/esp
<span id="L52" class="LineNr"> 52 </span>    <span class="subxComment"># ioctl(*Terminal-file-descriptor, TIOCGWINSZ, window-size-info)</span>
<span id="L53" class="LineNr"> 53 </span>    89/&lt;- %edx 6/r32/esi
<span id="L54" class="LineNr"> 54 </span>    b9/copy-to-ecx 0x5413/imm32/TIOCGWINSZ
<span id="L55" class="LineNr"> 55 </span>    8b/-&gt; *<span class="SpecialChar"><a href='304screen.subx.html#L446'>Terminal-file-descriptor</a></span> 3/r32/ebx
<span id="L56" class="LineNr"> 56 </span>    e8/call <a href='000init.subx.html#L77'>syscall_ioctl</a>/disp32
<span id="L57" class="LineNr"> 57 </span>    <span class="subxComment"># some bitworking to extract 2 16-bit shorts</span>
<span id="L58" class="LineNr"> 58 </span>    8b/-&gt; *esi 0/r32/eax
<span id="L59" class="LineNr"> 59 </span>    25/and-eax-with 0xffff/imm32
<span id="L60" class="LineNr"> 60 </span>    8b/-&gt; *esi 1/r32/ecx
<span id="L61" class="LineNr"> 61 </span>    c1/shift 5/subop/logical-right %ecx 0x10/imm8
<span id="L62" class="LineNr"> 62 </span><span class="Constant">$real-screen-size:end</span>:
<span id="L63" class="LineNr"> 63 </span>    <span class="subxS1Comment"># . reclaim locals</span>
<span id="L64" class="LineNr"> 64 </span>    81 0/subop/add %esp 0x40/imm32
<span id="L65" class="LineNr"> 65 </span>    <span class="subxS1Comment"># . restore registers</span>
<span id="L66" class="LineNr"> 66 </span>    5f/pop-to-edi
<span id="L67" class="LineNr"> 67 </span>    5e/pop-to-esi
<span id="L68" class="LineNr"> 68 </span>    5b/pop-to-ebx
<span id="L69" class="LineNr"> 69 </span>    5a/pop-to-edx
<span id="L70" class="LineNr"> 70 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L71" class="LineNr"> 71 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L72" class="LineNr"> 72 </span>    5d/pop-to-ebp
<span id="L73" class="LineNr"> 73 </span>    c3/return
<span id="L74" class="LineNr"> 74 </span>
<span id="L75" class="LineNr"> 75 </span><span class="subxFunction">clear-real-screen</span>:
<span id="L76" class="LineNr"> 76 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L77" class="LineNr"> 77 </span>    55/push-ebp
<span id="L78" class="LineNr"> 78 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L79" class="LineNr"> 79 </span>    <span class="subxComment">#</span>
<span id="L80" class="LineNr"> 80 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L81" class="LineNr"> 81 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[H&quot;</span>)
<span id="L82" class="LineNr"> 82 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L83" class="LineNr"> 83 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[2J&quot;</span>)
<span id="L84" class="LineNr"> 84 </span><span class="Constant">$clear-real-screen:end</span>:
<span id="L85" class="LineNr"> 85 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L86" class="LineNr"> 86 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L87" class="LineNr"> 87 </span>    5d/pop-to-ebp
<span id="L88" class="LineNr"> 88 </span>    c3/return
<span id="L89" class="LineNr"> 89 </span>
<span id="L90" class="LineNr"> 90 </span><span class="subxComment"># row and col count from the top-left as (1, 1)</span>
<span id="L91" class="LineNr"> 91 </span><span class="subxFunction">move-cursor-on-real-screen</span>:  <span class="subxComment"># row: int, column: int</span>
<span id="L92" class="LineNr"> 92 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L93" class="LineNr"> 93 </span>    55/push-ebp
<span id="L94" class="LineNr"> 94 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L95" class="LineNr"> 95 </span>    <span class="subxS1Comment"># . save registers</span>
<span id="L96" class="LineNr"> 96 </span>    51/push-ecx
<span id="L97" class="LineNr"> 97 </span>    <span class="subxComment"># var buf/ecx: (stream byte 32)</span>
<span id="L98" class="LineNr"> 98 </span>    81 5/subop/subtract %esp 0x20/imm32
<span id="L99" class="LineNr"> 99 </span>    68/push 0x20/imm32/size
<span id="L100" class="LineNr">100 </span>    68/push 0/imm32/read
<span id="L101" class="LineNr">101 </span>    68/push 0/imm32/write
<span id="L102" class="LineNr">102 </span>    89/&lt;- %ecx 4/r32/esp
<span id="L103" class="LineNr">103 </span>    <span class="subxComment"># construct directive in buf</span>
<span id="L104" class="LineNr">104 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L105" class="LineNr">105 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="Constant">&quot;[&quot;</span>)
<span id="L106" class="LineNr">106 </span>    (<a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a> %ecx *(ebp+8))
<span id="L107" class="LineNr">107 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="Constant">&quot;;&quot;</span>)
<span id="L108" class="LineNr">108 </span>    (<a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a> %ecx *(ebp+0xc))
<span id="L109" class="LineNr">109 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="Constant">&quot;H&quot;</span>)
<span id="L110" class="LineNr">110 </span>    <span class="subxComment"># flush</span>
<span id="L111" class="LineNr">111 </span>    (<a href='113write-stream.subx.html#L17'>write-stream</a> 2 %ecx)
<span id="L112" class="LineNr">112 </span><span class="Constant">$move-cursor-on-real-screen:end</span>:
<span id="L113" class="LineNr">113 </span>    <span class="subxS1Comment"># . reclaim locals</span>
<span id="L114" class="LineNr">114 </span>    81 0/subop/add %esp 0x2c/imm32
<span id="L115" class="LineNr">115 </span>    <span class="subxS1Comment"># . restore registers</span>
<span id="L116" class="LineNr">116 </span>    59/pop-to-ecx
<span id="L117" class="LineNr">117 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L118" class="LineNr">118 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L119" class="LineNr">119 </span>    5d/pop-to-ebp
<span id="L120" class="LineNr">120 </span>    c3/return
<span id="L121" class="LineNr">121 </span>
<span id="L122" class="LineNr">122 </span><span class="subxFunction">print-string-to-real-screen</span>:  <span class="subxComment"># s: (addr array byte)</span>
<span id="L123" class="LineNr">123 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L124" class="LineNr">124 </span>    55/push-ebp
<span id="L125" class="LineNr">125 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L126" class="LineNr">126 </span>    <span class="subxComment">#</span>
<span id="L127" class="LineNr">127 </span>    (<a href='108write.subx.html#L24'>write</a> 1 *(ebp+8))
<span id="L128" class="LineNr">128 </span><span class="Constant">$print-string-to-real-screen:end</span>:
<span id="L129" class="LineNr">129 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L130" class="LineNr">130 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L131" class="LineNr">131 </span>    5d/pop-to-ebp
<span id="L132" class="LineNr">132 </span>    c3/return
<span id="L133" class="LineNr">133 </span>
<span id="L134" class="LineNr">134 </span><span class="subxFunction">print-slice-to-real-screen</span>:  <span class="subxComment"># s: (addr slice)</span>
<span id="L135" class="LineNr">135 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L136" class="LineNr">136 </span>    55/push-ebp
<span id="L137" class="LineNr">137 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L138" class="LineNr">138 </span>    <span class="subxComment">#</span>
<span id="L139" class="LineNr">139 </span>    (<a href='123slice.subx.html#L908'>write-slice-buffered</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span> *(ebp+8))
<span id="L140" class="LineNr">140 </span>    (<a href='115write-byte.subx.html#L81'>flush</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span>)
<span id="L141" class="LineNr">141 </span><span class="Constant">$print-slice-to-real-screen:end</span>:
<span id="L142" class="LineNr">142 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L143" class="LineNr">143 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L144" class="LineNr">144 </span>    5d/pop-to-ebp
<span id="L145" class="LineNr">145 </span>    c3/return
<span id="L146" class="LineNr">146 </span>
<span id="L147" class="LineNr">147 </span><span class="subxFunction">print-stream-to-real-screen</span>:  <span class="subxComment"># s: (addr stream byte)</span>
<span id="L148" class="LineNr">148 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L149" class="LineNr">149 </span>    55/push-ebp
<span id="L150" class="LineNr">150 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L151" class="LineNr">151 </span>    <span class="subxComment">#</span>
<span id="L152" class="LineNr">152 </span>    (<a href='125write-stream-data.subx.html#L11'>write-stream-data</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span> *(ebp+8))
<span id="L153" class="LineNr">153 </span>    (<a href='115write-byte.subx.html#L81'>flush</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span>)
<span id="L154" class="LineNr">154 </span><span class="Constant">$print-stream-to-real-screen:end</span>:
<span id="L155" class="LineNr">155 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L156" class="LineNr">156 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L157" class="LineNr">157 </span>    5d/pop-to-ebp
<span id="L158" class="LineNr">158 </span>    c3/return
<span id="L159" class="LineNr">159 </span>
<span id="L160" class="LineNr">160 </span><span class="subxComment"># print a grapheme in utf-8 (only up to 4 bytes so far)</span>
<span id="L161" class="LineNr">161 </span><span class="subxFunction">print-grapheme-to-real-screen</span>:  <span class="subxComment"># c: grapheme</span>
<span id="L162" class="LineNr">162 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L163" class="LineNr">163 </span>    55/push-ebp
<span id="L164" class="LineNr">164 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L165" class="LineNr">165 </span>    <span class="subxS1Comment"># . save registers</span>
<span id="L166" class="LineNr">166 </span>    50/push-eax
<span id="L167" class="LineNr">167 </span>    <span class="subxComment"># var curr/eax: byte = 0</span>
<span id="L168" class="LineNr">168 </span>    b8/copy-to-eax 0/imm32
<span id="L169" class="LineNr">169 </span>    <span class="subxComment"># curr = *(ebp+8)</span>
<span id="L170" class="LineNr">170 </span>    8a/byte-&gt; *(ebp+8) 0/r32/al
<span id="L171" class="LineNr">171 </span>    <span class="subxComment"># if (curr == 0) return</span>
<span id="L172" class="LineNr">172 </span>    3d/compare-eax-and 0/imm32
<span id="L173" class="LineNr">173 </span>    74/jump-if-= $print-grapheme-to-real-screen:end/disp8
<span id="L174" class="LineNr">174 </span>    <span class="subxComment">#</span>
<span id="L175" class="LineNr">175 </span>    (<a href='304screen.subx.html#L205'>print-byte-to-real-screen</a> %eax)
<span id="L176" class="LineNr">176 </span>    <span class="subxComment"># curr = *(ebp+9)</span>
<span id="L177" class="LineNr">177 </span>    8a/byte-&gt; *(ebp+9) 0/r32/al
<span id="L178" class="LineNr">178 </span>    <span class="subxComment"># if (curr == 0) return</span>
<span id="L179" class="LineNr">179 </span>    3d/compare-eax-and 0/imm32
<span id="L180" class="LineNr">180 </span>    74/jump-if-= $print-grapheme-to-real-screen:end/disp8
<span id="L181" class="LineNr">181 </span>    <span class="subxComment">#</span>
<span id="L182" class="LineNr">182 </span>    (<a href='304screen.subx.html#L205'>print-byte-to-real-screen</a> %eax)
<span id="L183" class="LineNr">183 </span>    <span class="subxComment"># curr = *(ebp+10)</span>
<span id="L184" class="LineNr">184 </span>    8a/byte-&gt; *(ebp+0xa) 0/r32/al
<span id="L185" class="LineNr">185 </span>    <span class="subxComment"># if (curr == 0) return</span>
<span id="L186" class="LineNr">186 </span>    3d/compare-eax-and 0/imm32
<span id="L187" class="LineNr">187 </span>    74/jump-if-= $print-grapheme-to-real-screen:end/disp8
<span id="L188" class="LineNr">188 </span>    <span class="subxComment">#</span>
<span id="L189" class="LineNr">189 </span>    (<a href='304screen.subx.html#L205'>print-byte-to-real-screen</a> %eax)
<span id="L190" class="LineNr">190 </span>    <span class="subxComment"># curr = *(ebp+11)</span>
<span id="L191" class="LineNr">191 </span>    8a/byte-&gt; *(ebp+0xb) 0/r32/al
<span id="L192" class="LineNr">192 </span>    <span class="subxComment"># if (curr == 0) return</span>
<span id="L193" class="LineNr">193 </span>    3d/compare-eax-and 0/imm32
<span id="L194" class="LineNr">194 </span>    74/jump-if-= $print-grapheme-to-real-screen:end/disp8
<span id="L195" class="LineNr">195 </span>    <span class="subxComment">#</span>
<span id="L196" class="LineNr">196 </span>    (<a href='304screen.subx.html#L205'>print-byte-to-real-screen</a> %eax)
<span id="L197" class="LineNr">197 </span><span class="Constant">$print-grapheme-to-real-screen:end</span>:
<span id="L198" class="LineNr">198 </span>    <span class="subxS1Comment"># . restore registers</span>
<span id="L199" class="LineNr">199 </span>    58/pop-to-eax
<span id="L200" class="LineNr">200 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L201" class="LineNr">201 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L202" class="LineNr">202 </span>    5d/pop-to-ebp
<span id="L203" class="LineNr">203 </span>    c3/return
<span id="L204" class="LineNr">204 </span>
<span id="L205" class="LineNr">205 </span><span class="subxFunction">print-byte-to-real-screen</span>:  <span class="subxComment"># c: byte</span>
<span id="L206" class="LineNr">206 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L207" class="LineNr">207 </span>    55/push-ebp
<span id="L208" class="LineNr">208 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L209" class="LineNr">209 </span>    <span class="subxS1Comment"># . save registers</span>
<span id="L210" class="LineNr">210 </span>    51/push-ecx
<span id="L211" class="LineNr">211 </span>    <span class="subxComment"># var s/ecx: (addr array byte)</span>
<span id="L212" class="LineNr">212 </span>    ff 6/subop/push *(ebp+8)
<span id="L213" class="LineNr">213 </span>    68/push 1/imm32/size
<span id="L214" class="LineNr">214 </span>    89/&lt;- %ecx 4/r32/esp
<span id="L215" class="LineNr">215 </span>    (<a href='108write.subx.html#L24'>write</a> 1 %ecx)
<span id="L216" class="LineNr">216 </span><span class="Constant">$print-byte-to-real-screen:end</span>:
<span id="L217" class="LineNr">217 </span>    <span class="subxS1Comment"># . reclaim locals</span>
<span id="L218" class="LineNr">218 </span>    81 0/subop/add %esp 8/imm32
<span id="L219" class="LineNr">219 </span>    <span class="subxS1Comment"># . restore registers</span>
<span id="L220" class="LineNr">220 </span>    59/pop-to-ecx
<span id="L221" class="LineNr">221 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L222" class="LineNr">222 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L223" class="LineNr">223 </span>    5d/pop-to-ebp
<span id="L224" class="LineNr">224 </span>    c3/return
<span id="L225" class="LineNr">225 </span>
<span id="L226" class="LineNr">226 </span><span class="subxFunction">print-int32-hex-to-real-screen</span>:  <span class="subxComment"># n: int</span>
<span id="L227" class="LineNr">227 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L228" class="LineNr">228 </span>    55/push-ebp
<span id="L229" class="LineNr">229 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L230" class="LineNr">230 </span>    <span class="subxComment">#</span>
<span id="L231" class="LineNr">231 </span>    (<a href='117write-int-hex.subx.html#L288'>write-int32-hex-buffered</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span> *(ebp+8))
<span id="L232" class="LineNr">232 </span>    (<a href='115write-byte.subx.html#L81'>flush</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span>)
<span id="L233" class="LineNr">233 </span><span class="Constant">$print-int32-hex-to-real-screen:end</span>:
<span id="L234" class="LineNr">234 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L235" class="LineNr">235 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L236" class="LineNr">236 </span>    5d/pop-to-ebp
<span id="L237" class="LineNr">237 </span>    c3/return
<span id="L238" class="LineNr">238 </span>
<span id="L239" class="LineNr">239 </span><span class="subxFunction">print-int32-hex-bits-to-real-screen</span>:  <span class="subxComment"># n: int, bits: int</span>
<span id="L240" class="LineNr">240 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L241" class="LineNr">241 </span>    55/push-ebp
<span id="L242" class="LineNr">242 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L243" class="LineNr">243 </span>    <span class="subxComment">#</span>
<span id="L244" class="LineNr">244 </span>    (<a href='117write-int-hex.subx.html#L319'>write-int32-hex-bits-buffered</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span> *(ebp+8) *(ebp+0xc) *(ebp+0x10))
<span id="L245" class="LineNr">245 </span>    (<a href='115write-byte.subx.html#L81'>flush</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span>)
<span id="L246" class="LineNr">246 </span><span class="Constant">$print-int32-hex-bits-to-real-screen:end</span>:
<span id="L247" class="LineNr">247 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L248" class="LineNr">248 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L249" class="LineNr">249 </span>    5d/pop-to-ebp
<span id="L250" class="LineNr">250 </span>    c3/return
<span id="L251" class="LineNr">251 </span>
<span id="L252" class="LineNr">252 </span><span class="subxFunction">print-int32-decimal-to-real-screen</span>:  <span class="subxComment"># n: int</span>
<span id="L253" class="LineNr">253 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L254" class="LineNr">254 </span>    55/push-ebp
<span id="L255" class="LineNr">255 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L256" class="LineNr">256 </span>    <span class="subxComment">#</span>
<span id="L257" class="LineNr">257 </span>    (<a href='304screen.subx.html#L265'>write-int32-decimal-buffered</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span> *(ebp+8))
<span id="L258" class="LineNr">258 </span>    (<a href='115write-byte.subx.html#L81'>flush</a> <span class="SpecialChar"><a href='115write-byte.subx.html#L10'>Stdout</a></span>)
<span id="L259" class="LineNr">259 </span><span class="Constant">$print-int32-decimal-to-real-screen:end</span>:
<span id="L260" class="LineNr">260 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L261" class="LineNr">261 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L262" class="LineNr">262 </span>    5d/pop-to-ebp
<span id="L263" class="LineNr">263 </span>    c3/return
<span id="L264" class="LineNr">264 </span>
<span id="L265" class="LineNr">265 </span><span class="subxFunction">write-int32-decimal-buffered</span>:  <span class="subxComment"># f: (addr buffered-file), n: int</span>
<span id="L266" class="LineNr">266 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L267" class="LineNr">267 </span>    55/push-ebp
<span id="L268" class="LineNr">268 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L269" class="LineNr">269 </span>    <span class="subxS1Comment"># . save registers</span>
<span id="L270" class="LineNr">270 </span>    51/push-ecx
<span id="L271" class="LineNr">271 </span>    <span class="subxComment"># var ecx: (stream byte 16)</span>
<span id="L272" class="LineNr">272 </span>    81 5/subop/subtract %esp 0x10/imm32
<span id="L273" class="LineNr">273 </span>    68/push 0x10/imm32/size
<span id="L274" class="LineNr">274 </span>    68/push 0/imm32/read
<span id="L275" class="LineNr">275 </span>    68/push 0/imm32/write
<span id="L276" class="LineNr">276 </span>    89/&lt;- %ecx 4/r32/esp
<span id="L277" class="LineNr">277 </span>    (<a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a> %ecx *(ebp+0xc))
<span id="L278" class="LineNr">278 </span>    (<a href='125write-stream-data.subx.html#L11'>write-stream-data</a> *(ebp+8) %ecx)
<span id="L279" class="LineNr">279 </span><span class="Constant">$write-int32-decimal-buffered:end</span>:
<span id="L280" class="LineNr">280 </span>    <span class="subxS1Comment"># . reclaim locals</span>
<span id="L281" class="LineNr">281 </span>    81 0/subop/add %esp 0x1c/imm32
<span id="L282" class="LineNr">282 </span>    <span class="subxS1Comment"># . restore registers</span>
<span id="L283" class="LineNr">283 </span>    59/pop-to-ecx
<span id="L284" class="LineNr">284 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L285" class="LineNr">285 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L286" class="LineNr">286 </span>    5d/pop-to-ebp
<span id="L287" class="LineNr">287 </span>    c3/return
<span id="L288" class="LineNr">288 </span>
<span id="L289" class="LineNr">289 </span><span class="subxFunction">reset-formatting-on-real-screen</span>:
<span id="L290" class="LineNr">290 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L291" class="LineNr">291 </span>    55/push-ebp
<span id="L292" class="LineNr">292 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L293" class="LineNr">293 </span>    <span class="subxComment">#</span>
<span id="L294" class="LineNr">294 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L295" class="LineNr">295 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;(B&quot;</span>)
<span id="L296" class="LineNr">296 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L297" class="LineNr">297 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[m&quot;</span>)
<span id="L298" class="LineNr">298 </span><span class="Constant">$reset-formatting-on-real-screen:end</span>:
<span id="L299" class="LineNr">299 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L300" class="LineNr">300 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L301" class="LineNr">301 </span>    5d/pop-to-ebp
<span id="L302" class="LineNr">302 </span>    c3/return
<span id="L303" class="LineNr">303 </span>
<span id="L304" class="LineNr">304 </span><span class="subxFunction">start-color-on-real-screen</span>:  <span class="subxComment"># fg: int, bg: int</span>
<span id="L305" class="LineNr">305 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L306" class="LineNr">306 </span>    55/push-ebp
<span id="L307" class="LineNr">307 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L308" class="LineNr">308 </span>    <span class="subxS1Comment"># . save registers</span>
<span id="L309" class="LineNr">309 </span>    51/push-ecx
<span id="L310" class="LineNr">310 </span>    <span class="subxComment"># var buf/ecx: (stream byte 32)</span>
<span id="L311" class="LineNr">311 </span>    81 5/subop/subtract %esp 0x20/imm32
<span id="L312" class="LineNr">312 </span>    68/push 0x20/imm32/size
<span id="L313" class="LineNr">313 </span>    68/push 0/imm32/read
<span id="L314" class="LineNr">314 </span>    68/push 0/imm32/write
<span id="L315" class="LineNr">315 </span>    89/&lt;- %ecx 4/r32/esp
<span id="L316" class="LineNr">316 </span>    <span class="subxComment"># construct directive in buf</span>
<span id="L317" class="LineNr">317 </span>    <span class="subxS1Comment"># . set fg</span>
<span id="L318" class="LineNr">318 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L319" class="LineNr">319 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="Constant">&quot;[38;5;&quot;</span>)
<span id="L320" class="LineNr">320 </span>    (<a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a> %ecx *(ebp+8))
<span id="L321" class="LineNr">321 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="Constant">&quot;m&quot;</span>)
<span id="L322" class="LineNr">322 </span>    <span class="subxS1Comment"># . set bg</span>
<span id="L323" class="LineNr">323 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L324" class="LineNr">324 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="Constant">&quot;[48;5;&quot;</span>)
<span id="L325" class="LineNr">325 </span>    (<a href='126write-int-decimal.subx.html#L8'>write-int32-decimal</a> %ecx *(ebp+0xc))
<span id="L326" class="LineNr">326 </span>    (<a href='108write.subx.html#L24'>write</a> %ecx <span class="Constant">&quot;m&quot;</span>)
<span id="L327" class="LineNr">327 </span>    <span class="subxComment"># flush</span>
<span id="L328" class="LineNr">328 </span>    (<a href='113write-stream.subx.html#L17'>write-stream</a> 2 %ecx)
<span id="L329" class="LineNr">329 </span><span class="Constant">$start-color-on-real-screen:end</span>:
<span id="L330" class="LineNr">330 </span>    <span class="subxS1Comment"># . reclaim locals</span>
<span id="L331" class="LineNr">331 </span>    81 0/subop/add %esp 0x2c/imm32
<span id="L332" class="LineNr">332 </span>    <span class="subxS1Comment"># . restore registers</span>
<span id="L333" class="LineNr">333 </span>    59/pop-to-ecx
<span id="L334" class="LineNr">334 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L335" class="LineNr">335 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L336" class="LineNr">336 </span>    5d/pop-to-ebp
<span id="L337" class="LineNr">337 </span>    c3/return
<span id="L338" class="LineNr">338 </span>
<span id="L339" class="LineNr">339 </span><span class="subxFunction">start-bold-on-real-screen</span>:
<span id="L340" class="LineNr">340 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L341" class="LineNr">341 </span>    55/push-ebp
<span id="L342" class="LineNr">342 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L343" class="LineNr">343 </span>    <span class="subxComment">#</span>
<span id="L344" class="LineNr">344 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L345" class="LineNr">345 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[1m&quot;</span>)
<span id="L346" class="LineNr">346 </span><span class="Constant">$start-bold-on-real-screen:end</span>:
<span id="L347" class="LineNr">347 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L348" class="LineNr">348 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L349" class="LineNr">349 </span>    5d/pop-to-ebp
<span id="L350" class="LineNr">350 </span>    c3/return
<span id="L351" class="LineNr">351 </span>
<span id="L352" class="LineNr">352 </span><span class="subxFunction">start-underline-on-real-screen</span>:
<span id="L353" class="LineNr">353 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L354" class="LineNr">354 </span>    55/push-ebp
<span id="L355" class="LineNr">355 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L356" class="LineNr">356 </span>    <span class="subxComment">#</span>
<span id="L357" class="LineNr">357 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L358" class="LineNr">358 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[4m&quot;</span>)
<span id="L359" class="LineNr">359 </span><span class="Constant">$start-underline-on-real-screen:end</span>:
<span id="L360" class="LineNr">360 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L361" class="LineNr">361 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L362" class="LineNr">362 </span>    5d/pop-to-ebp
<span id="L363" class="LineNr">363 </span>    c3/return
<span id="L364" class="LineNr">364 </span>
<span id="L365" class="LineNr">365 </span><span class="subxFunction">start-reverse-video-on-real-screen</span>:
<span id="L366" class="LineNr">366 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L367" class="LineNr">367 </span>    55/push-ebp
<span id="L368" class="LineNr">368 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L369" class="LineNr">369 </span>    <span class="subxComment">#</span>
<span id="L370" class="LineNr">370 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L371" class="LineNr">371 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[7m&quot;</span>)
<span id="L372" class="LineNr">372 </span><span class="Constant">$start-reverse-video-on-real-screen:end</span>:
<span id="L373" class="LineNr">373 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L374" class="LineNr">374 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L375" class="LineNr">375 </span>    5d/pop-to-ebp
<span id="L376" class="LineNr">376 </span>    c3/return
<span id="L377" class="LineNr">377 </span>
<span id="L378" class="LineNr">378 </span><span class="subxComment"># might require enabling blinking in your terminal program</span>
<span id="L379" class="LineNr">379 </span><span class="subxFunction">start-blinking-on-real-screen</span>:
<span id="L380" class="LineNr">380 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L381" class="LineNr">381 </span>    55/push-ebp
<span id="L382" class="LineNr">382 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L383" class="LineNr">383 </span>    <span class="subxComment">#</span>
<span id="L384" class="LineNr">384 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L385" class="LineNr">385 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[5m&quot;</span>)
<span id="L386" class="LineNr">386 </span><span class="Constant">$start-blinking-on-real-screen:end</span>:
<span id="L387" class="LineNr">387 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L388" class="LineNr">388 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L389" class="LineNr">389 </span>    5d/pop-to-ebp
<span id="L390" class="LineNr">390 </span>    c3/return
<span id="L391" class="LineNr">391 </span>
<span id="L392" class="LineNr">392 </span><span class="subxFunction">hide-cursor-on-real-screen</span>:
<span id="L393" class="LineNr">393 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L394" class="LineNr">394 </span>    55/push-ebp
<span id="L395" class="LineNr">395 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L396" class="LineNr">396 </span>    <span class="subxComment">#</span>
<span id="L397" class="LineNr">397 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L398" class="LineNr">398 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[?25l&quot;</span>)
<span id="L399" class="LineNr">399 </span><span class="Constant">$hide-cursor-on-real-screen:end</span>:
<span id="L400" class="LineNr">400 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L401" class="LineNr">401 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L402" class="LineNr">402 </span>    5d/pop-to-ebp
<span id="L403" class="LineNr">403 </span>    c3/return
<span id="L404" class="LineNr">404 </span>
<span id="L405" class="LineNr">405 </span><span class="subxFunction">show-cursor-on-real-screen</span>:
<span id="L406" class="LineNr">406 </span>    <span class="subxS1Comment"># . prologue</span>
<span id="L407" class="LineNr">407 </span>    55/push-ebp
<span id="L408" class="LineNr">408 </span>    89/&lt;- %ebp 4/r32/esp
<span id="L409" class="LineNr">409 </span>    <span class="subxComment">#</span>
<span id="L410" class="LineNr">410 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L411" class="LineNr">411 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[?12l&quot;</span>)
<span id="L412" class="LineNr">412 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="SpecialChar"><a href='304screen.subx.html#L449'>Esc</a></span>)
<span id="L413" class="LineNr">413 </span>    (<a href='108write.subx.html#L24'>write</a> 1 <span class="Constant">&quot;[?25h&quot;</span>)
<span id="L414" class="LineNr">414 </span><span class="Constant">$show-cursor-on-real-screen:end</span>:
<span id="L415" class="LineNr">415 </span>    <span class="subxS1Comment"># . epilogue</span>
<span id="L416" class="LineNr">416 </span>    89/&lt;- %esp 5/r32/ebp
<span id="L417" class="LineNr">417 </span>    5d/pop-to-ebp
<span id="L418" class="LineNr">418 </span>    c3/return
<span id="L419" class="LineNr">419 </span>
<span id="L420" class="LineNr">420 </span><span class="subxComment"># This is a low-level detail; I don't think everything should be a file.</span>
<span id="L421" class="LineNr">421 </span><span class="subxComment">#</span>
<span id="L422" class="LineNr">422 </span><span class="subxComment"># Open &quot;/dev/tty&quot; if necessary and cache its file descriptor in Terminal-file-descriptor</span>
<span id="L423" class="LineNr">423 </span><span class="subxComment"># where later primitives can use it.</span>
<span id="L424" class="LineNr">424 </span><span class="subxMinorFunction">_maybe-open-terminal</span>:
<span id="L425" class="LineNr">425 </span>    81 7/subop/compare *<span class="SpecialChar"><a href='304screen.subx.html#L446'>Terminal-file-descriptor</a></span> -1/imm32
<span id="L426" class="LineNr">426 </span>    75/jump-if-!= $_maybe-open-terminal:epilogue/disp8
<span id="L427" class="LineNr">427 </span>    <span class="subxS1Comment"># . save registers</span>
<span id="L428" class="LineNr">428 </span>    50/push-eax
<span id="L429" class="LineNr">429 </span>    51/push-ecx
<span id="L430" class="LineNr">430 </span>    53/push-ebx
<span id="L431" class="LineNr">431 </span>    <span class="subxComment"># open(&quot;/dev/tty&quot;, O_RDWR)</span>
<span id="L432" class="LineNr">432 </span>    bb/copy-to-ebx <span class="SpecialChar"><a href='304screen.subx.html#L455'>Terminal-filename</a></span>/imm32
<span id="L433" class="LineNr">433 </span>    b9/copy-to-ecx 2/imm32/O_RDWR
<span id="L434" class="LineNr">434 </span>    e8/call <a href='000init.subx.html#L35'>syscall_open</a>/disp32
<span id="L435" class="LineNr">435 </span>    89/&lt;- *<span class="SpecialChar"><a href='304screen.subx.html#L446'>Terminal-file-descriptor</a></span> 0/r32/eax
<span id="L436" class="LineNr">436 </span><span class="Constant">$_maybe-open-terminal:end</span>:
<span id="L437" class="LineNr">437 </span>    <span class="subxS1Comment"># . restore registers</span>
<span id="L438" class="LineNr">438 </span>    5b/pop-to-ebx
<span id="L439" class="LineNr">439 </span>    59/pop-to-ecx
<span id="L440" class="LineNr">440 </span>    58/pop-to-eax
<span id="L441" class="LineNr">441 </span><span class="Constant">$_maybe-open-terminal:epilogue</span>:
<span id="L442" class="LineNr">442 </span>    c3/return
<span id="L443" class="LineNr">443 </span>
<span id="L444" class="LineNr">444 </span>== data
<span id="L445" class="LineNr">445 </span>
<span id="L446" class="LineNr">446 </span><span class="SpecialChar">Terminal-file-descriptor</span>:  <span class="subxComment"># (addr int)</span>
<span id="L447" class="LineNr">447 </span>  -1/imm32
<span id="L448" class="LineNr">448 </span>
<span id="L449" class="LineNr">449 </span><span class="SpecialChar">Esc</span>:  <span class="subxComment"># (addr array byte)</span>
<span id="L450" class="LineNr">450 </span>  <span class="subxComment"># size</span>
<span id="L451" class="LineNr">451 </span>  1/imm32
<span id="L452" class="LineNr">452 </span>  <span class="subxComment"># data</span>
<span id="L453" class="LineNr">453 </span>  0x1b
<span id="L454" class="LineNr">454 </span>
<span id="L455" class="LineNr">455 </span><span class="SpecialChar">Terminal-filename</span>:  <span class="subxComment"># (addr kernel-string)</span>
<span id="L456" class="LineNr">456 </span>  <span class="subxComment"># &quot;/dev/tty&quot;</span>
<span id="L457" class="LineNr">457 </span>  2f/slash 64/d 65/e 76/v 2f/slash 74/t 74/t 79/y 0/nul
<span id="L458" class="LineNr">458 </span>  <span class="subxComment"># on Linux console</span>
<span id="L459" class="LineNr">459 </span><span class="CommentedCode">#?   # &quot;/dev/console&quot;</span>
<span id="L460" class="LineNr">460 </span><span class="CommentedCode">#?   2f/slash 64/d 65/e 76/v 2f/slash 63/c 6f/o 6e/n 73/s 6f/o 6c/l 65/e 0/nul</span>
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