190 lines
12 KiB
HTML
190 lines
12 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>Int 10/AH=01h
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</TITLE>
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<META NAME="Description" CONTENT="
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Int 10/AH=01h - VIDEO - SET TEXT-MODE CURSOR SHAPE -
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AH = 01h
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CH = cursor start and options (see #00013)
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CL = bottom scan line containing cursor (bits 0-4)
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Return: nothing
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Desc: specify the starting and ending scan lines to be occupied by the
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hardware cursor in text modes
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Notes: buggy on EGA systems--BIOS remaps cursor shape in 43 line modes, but
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returns unmapped cursor shape
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UltraVision scales size to the current font height by assuming 14-line
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monochrome and 8-line color fonts; this call is not valid if cursor
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">
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<META NAME="robots" CONTENT="none">
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</HEAD>
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<BODY BGCOLOR="#FFD0A0">
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<center>
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<h2>Int 10/AH=01h
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</h2>
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</center><p>
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<table border=1 cellpadding=3 cellspacing=1>
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<td>
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<a href="rb-0085.htm" tppabs="http://www.ctyme.com/intr/rb-0085.htm">
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<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
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<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
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<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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</td></table><p>
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<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<h3><font color=#C00040>VIDEO - SET TEXT-MODE CURSOR SHAPE</font></h3>
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<PRE>
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AH = 01h
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CH = cursor start and options <a href="rb-0086.htm#Table13" tppabs="http://www.ctyme.com/intr/rb-0086.htm#Table13">(see #00013)</a>
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CL = bottom scan line containing cursor (bits 0-4)<br>
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<p><b>Return:</b><br>Nothing
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</PRE>
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<p><b>Desc:</b>
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Specify the starting and ending scan lines to be occupied by the
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hardware cursor in text modes
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<p><b>Notes:</b>
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Buggy on EGA systems--BIOS remaps cursor shape in 43 line modes, but
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returns unmapped cursor shape.
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UltraVision scales size to the current font height by assuming 14-line
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monochrome and 8-line color fonts; this call is not valid if cursor
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emulation has been disabled.
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Applications which wish to change the cursor by programming the
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hardware directly on EGA or above should call INT 10/AX=1130h or
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read 0040h:0085h first to determine the current font height.
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On some adapters, setting the end line greater than the number of lines
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in the font will result in the cursor extending to the top of the
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next character cell on the right
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<p><b>BUG:</b>
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AMI 386 BIOS and AST Premier 386 BIOS will lock up the system if AL
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is not equal to the current video mode
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<p><b>See Also:</b>
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<a href="rb-0088.htm" tppabs="http://www.ctyme.com/intr/rb-0088.htm">AH=03h</a> - <a href="rb-0528.htm" tppabs="http://www.ctyme.com/intr/rb-0528.htm">AX=CD05h</a> - <a href="rb-0171.htm" tppabs="http://www.ctyme.com/intr/rb-0171.htm">AH=12h/BL=34h</a> - #03885
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<PRE>
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<p>
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Bitfields for cursor start and options:
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<a name=table13></a>
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Bit(s) Description (Table 00013)
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7 should be zero
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6,5 cursor blink.
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(00=normal, 01=invisible, 10=erratic, 11=slow).
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(00=normal, other=invisible on EGA/VGA)
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4-0 topmost scan line containing cursor
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</PRE>
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<p>
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<b>Category: <a href="cat-046.htm" tppabs="http://www.ctyme.com/intr/cat-046.htm">
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Video</a>
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- <a href="int-10.htm" tppabs="http://www.ctyme.com/intr/int-10.htm">
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Int 10h</a>
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- <a href="alpha-v.htm" tppabs="http://www.ctyme.com/intr/alpha-v.htm">
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V</a>
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</b><p><p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
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<table border=1 cellpadding=3 cellspacing=1>
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<td>
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<a href="rb-0085.htm" tppabs="http://www.ctyme.com/intr/rb-0085.htm">
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<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
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<a href="rb-0087.htm" tppabs="http://www.ctyme.com/intr/rb-0087.htm">
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<img src="ldown.gif" tppabs="http://graphics.ctyme.com/gif/ldown.gif" border=0 alt=Next></a>
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<a href="javascript:if(confirm('http://www.ctyme.com/rbrown.htm \n\nThis file was not retrieved by Teleport Pro, because it is addressed on a domain or path outside the boundaries set for its Starting Address. \n\nDo you want to open it from the server?'))window.location='http://www.ctyme.com/rbrown.htm'" tppabs="http://www.ctyme.com/rbrown.htm">
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<img src="lhome.gif" tppabs="http://graphics.ctyme.com/gif/lhome.gif" border=0 alt=Ralf Brown Page></a>
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<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
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<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
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<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
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</td></table><p>
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