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docs/interrupts/int-html/rb-0221.htm
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docs/interrupts/int-html/rb-0221.htm
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<HTML>
|
||||
<HEAD>
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||||
<TITLE>Int 10/AH=1Bh
|
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</TITLE>
|
||||
<META NAME="Description" CONTENT="
|
||||
Int 10/AH=1Bh - VIDEO - FUNCTIONALITY/STATE INFORMATION (PS,VGA/MCGA) -
|
||||
AH = 1Bh
|
||||
BX = implementation type
|
||||
0000h return funtionality/state information
|
||||
ES:DI - 64-byte buffer for state information (see #00040)
|
||||
Return: AL = 1Bh if function supported
|
||||
ES:DI buffer filled with state information
|
||||
BUG: Trident 8900 (BIOS D3.0 1991/11/12) and Trident 9000 (C3.0 1991/10/25)
|
||||
do not correctly set the fields at offsets 27h and 29h of the
|
||||
state information
|
||||
SeeAlso: AH=15h,AX=1A00h,AX=1F01h
|
||||
">
|
||||
<META NAME="robots" CONTENT="none">
|
||||
</HEAD>
|
||||
<BODY BGCOLOR="#FFD0A0">
|
||||
<center>
|
||||
<h2>Int 10/AH=1Bh
|
||||
</h2>
|
||||
</center><p>
|
||||
<table border=1 cellpadding=3 cellspacing=1>
|
||||
<td>
|
||||
<a href="rb-0220.htm" tppabs="http://www.ctyme.com/intr/rb-0220.htm">
|
||||
<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
|
||||
<a href="rb-0222.htm" tppabs="http://www.ctyme.com/intr/rb-0222.htm">
|
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<img src="ldown.gif" tppabs="http://graphics.ctyme.com/gif/ldown.gif" border=0 alt=Next></a>
|
||||
<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>
|
||||
<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
|
||||
<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
|
||||
</td></table><p>
|
||||
<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
|
||||
<h3><font color=#C00040>VIDEO - FUNCTIONALITY/STATE INFORMATION (PS,VGA/MCGA)</font></h3>
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<PRE>
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AH = 1Bh
|
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BX = implementation type
|
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0000h return funtionality/state information
|
||||
ES:DI -> 64-byte buffer for state information <a href="rb-0221.htm#Table40" tppabs="http://www.ctyme.com/intr/rb-0221.htm#Table40">(see #00040)</a><br>
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||||
<p><b>Return:</b><br>AL = 1Bh if function supported
|
||||
ES:DI buffer filled with state information
|
||||
</PRE>
|
||||
<p><b>BUG:</b>
|
||||
Trident 8900 (BIOS D3.0 1991/11/12) and Trident 9000 (C3.0 1991/10/25)
|
||||
do not correctly set the fields at offsets 27h and 29h of the
|
||||
state information
|
||||
<p><b>See Also:</b>
|
||||
<a href="rb-0215.htm" tppabs="http://www.ctyme.com/intr/rb-0215.htm">AH=15h</a> - <a href="rb-0219.htm" tppabs="http://www.ctyme.com/intr/rb-0219.htm">AX=1A00h</a> - <a href="rb-0238.htm" tppabs="http://www.ctyme.com/intr/rb-0238.htm">AX=1F01h</a>
|
||||
<PRE>
|
||||
<p>
|
||||
Format of MCGA+ state information:
|
||||
<a name=table40></a>
|
||||
Offset Size Description (Table 00040)
|
||||
00h DWORD address of static funtionality table <a href="rb-0221.htm#Table45" tppabs="http://www.ctyme.com/intr/rb-0221.htm#Table45">(see #00045)</a>
|
||||
04h BYTE video mode in effect
|
||||
05h WORD number of columns
|
||||
07h WORD length of regen buffer in bytes
|
||||
09h WORD starting address of regen buffer
|
||||
0Bh WORD cursor position for page 0
|
||||
0Dh WORD cursor position for page 1
|
||||
0Fh WORD cursor position for page 2
|
||||
11h WORD cursor position for page 3
|
||||
13h WORD cursor position for page 4
|
||||
15h WORD cursor position for page 5
|
||||
17h WORD cursor position for page 6
|
||||
19h WORD cursor position for page 7
|
||||
1Bh WORD cursor "type" (start/stop scan lines)
|
||||
1Dh BYTE active display page
|
||||
1Eh WORD CRTC port address
|
||||
20h BYTE current setting of PORT 03x8h
|
||||
21h BYTE current setting of PORT 03x9h
|
||||
22h BYTE number of rows - 1
|
||||
23h WORD bytes/character
|
||||
25h BYTE display combination code of active display
|
||||
26h BYTE DCC of alternate display
|
||||
27h WORD number of colors supported in current mode (0000h = mono)
|
||||
29h BYTE number of pages supported in current mode
|
||||
2Ah BYTE number of scan lines active
|
||||
(0,1,2,3) = (200,350,400,480)
|
||||
<p><b>Tseng ET3000:</b><br>(4,5,6 = 512,600,768)
|
||||
2Bh BYTE primary character block
|
||||
2Ch BYTE secondary character block
|
||||
2Dh BYTE miscellaneous flags <a href="rb-0221.htm#Table41" tppabs="http://www.ctyme.com/intr/rb-0221.htm#Table41">(see #00041)</a>
|
||||
2Eh BYTE non-VGA mode support <a href="rb-0221.htm#Table42" tppabs="http://www.ctyme.com/intr/rb-0221.htm#Table42">(see #00042)</a>
|
||||
2Fh 2 BYTEs reserved (00h)
|
||||
31h BYTE video memory available
|
||||
00h = 64K, 01h = 128K, 02h = 192K, 03h = 256K
|
||||
32h BYTE save pointer state flags <a href="rb-0221.htm#Table43" tppabs="http://www.ctyme.com/intr/rb-0221.htm#Table43">(see #00043)</a>
|
||||
33h BYTE display information and status <a href="rb-0221.htm#Table44" tppabs="http://www.ctyme.com/intr/rb-0221.htm#Table44">(see #00044)</a>
|
||||
34h 12 BYTEs reserved (00h)
|
||||
<p>
|
||||
Bitfields for miscellaneous flags:
|
||||
<a name=table41></a>
|
||||
Bit(s) Description (Table 00041)
|
||||
0 all modes on all displays on
|
||||
1 gray summing on
|
||||
2 monochrome display attached
|
||||
3 default palette loading disabled
|
||||
4 cursor emulation enabled
|
||||
5 0 = intensity; 1 = blinking
|
||||
6 flat-panel display is active
|
||||
7 unused (0)
|
||||
</PRE>
|
||||
<p><b>See Also:</b>
|
||||
#00040
|
||||
<PRE>
|
||||
<p>
|
||||
Bitfields for non-VGA mode support:
|
||||
<a name=table42></a>
|
||||
Bit(s) Description (Table 00042)
|
||||
7-5 reserved
|
||||
4 132-column mode supported
|
||||
3 =1 MFI attributes enabled (see AH=12h/BL=37h).
|
||||
=0 VGA attributes
|
||||
2 16-bit VGA graphics present
|
||||
1 adapter interface driver required
|
||||
0 BIOS supports information return for adapter interface
|
||||
</PRE>
|
||||
<p><b>See Also:</b>
|
||||
#00040
|
||||
<PRE>
|
||||
<p>
|
||||
Bitfields for save pointer state flags:
|
||||
<a name=table43></a>
|
||||
Bit(s) Description (Table 00043)
|
||||
0 512 character set active
|
||||
1 dynamic save area present
|
||||
2 alpha font override active
|
||||
3 graphics font override active
|
||||
4 palette override active
|
||||
5 DCC override active
|
||||
6-7 unused (0)
|
||||
</PRE>
|
||||
<p><b>See Also:</b>
|
||||
#00040
|
||||
<PRE>
|
||||
<p>
|
||||
Bitfields for display information and status:
|
||||
<a name=table44></a>
|
||||
Bit(s) Description (Table 00044)
|
||||
7 640x480 flat-panel can be used simultaneously with CRT controller
|
||||
6-3 reserved
|
||||
2 color display
|
||||
1 flat-panel display active
|
||||
0 flat-panel display attached
|
||||
</PRE>
|
||||
<p><b>See Also:</b>
|
||||
#00040
|
||||
<PRE>
|
||||
<p>
|
||||
Format of Static Functionality Table:
|
||||
<a name=table45></a>
|
||||
Offset Size Description (Table 00045)
|
||||
00h BYTE modes supported 1
|
||||
bit 0 to bit 7 = 1 modes 0,1,2,3,4,5,6,7 supported
|
||||
01h BYTE modes supported 2
|
||||
bit 0 to bit 7 = 1 modes 8,9,0Ah,0Bh,0Ch,0Dh,0Eh,0Fh supported
|
||||
02h BYTE modes supported 3
|
||||
bit 0 to bit 3 = 1 modes 10h,11h,12h,13h supported
|
||||
bit 4 to bit 7 unused (0)
|
||||
03h BYTE (IBM) reserved
|
||||
(Tseng ET3000/4000) modes supported 4
|
||||
bit 0 to bit 7 = modes 18h-1Fh supported
|
||||
04h BYTE (IBM) reserved
|
||||
(Tseng ET3000/4000) modes supported 5
|
||||
bit 0 to bit 7 = modes 20h-27h supported
|
||||
05h BYTE (IBM) reserved
|
||||
(Tseng ET3000/4000) modes supported 6
|
||||
bit 0 to bit 7 = modes 28h-2Fh supported
|
||||
06h BYTE (IBM) reserved
|
||||
(Tseng ET3000/4000) modes supported 7
|
||||
bit 0 to bit 7 = modes 30h-37h supported
|
||||
07h BYTE scan lines supported
|
||||
bit 0 to bit 2 = 1 if scan lines 200,350,400 supported
|
||||
bits 3-7 = unused (0)
|
||||
08h BYTE total number of character blocks available in text modes
|
||||
09h BYTE maximum number of active character blocks in text modes
|
||||
0Ah WORD miscellaneous function support flags <a href="rb-0221.htm#Table46" tppabs="http://www.ctyme.com/intr/rb-0221.htm#Table46">(see #00046)</a>
|
||||
0Ch WORD reserved
|
||||
0Eh BYTE save pointer function flags <a href="rb-0221.htm#Table47" tppabs="http://www.ctyme.com/intr/rb-0221.htm#Table47">(see #00047)</a>
|
||||
0Fh BYTE reserved
|
||||
</PRE>
|
||||
<p><b>See Also:</b>
|
||||
#00040
|
||||
<PRE>
|
||||
<p>
|
||||
Bitfields for miscellaneous function support flags:
|
||||
<a name=table46></a>
|
||||
Bit(s) Description (Table 00046)
|
||||
0 all modes on all displays function supported
|
||||
1 gray summing function supported
|
||||
2 character font loading function supported
|
||||
3 default palette loading enable/disable supported
|
||||
4 cursor emulation function supported
|
||||
5 EGA palette present
|
||||
6 color palette present
|
||||
7 color-register paging function supported
|
||||
8 light pen supported (see AH=04h)
|
||||
9 save/restore state function 1Ch supported
|
||||
10 intensity/blinking function supported (see AX=1003h)
|
||||
11 Display Combination Code supported <a href="rb-0219.htm#Table39" tppabs="http://www.ctyme.com/intr/rb-0219.htm#Table39">(see #00039)</a>
|
||||
12-15 unused (0)
|
||||
</PRE>
|
||||
<p><b>See Also:</b>
|
||||
#00040
|
||||
<PRE>
|
||||
<p>
|
||||
Bitfields for save pointer function flags:
|
||||
<a name=table47></a>
|
||||
Bit(s) Description (Table 00047)
|
||||
0 512 character set supported
|
||||
1 dynamic save area supported
|
||||
2 alpha font override supported
|
||||
3 graphics font override supported
|
||||
4 palette override supported
|
||||
5 DCC extension supported
|
||||
6-7 unused (0)
|
||||
</PRE>
|
||||
<p><b>See Also:</b>
|
||||
#00040
|
||||
<p>
|
||||
<b>Category: <a href="cat-046.htm" tppabs="http://www.ctyme.com/intr/cat-046.htm">
|
||||
Video</a>
|
||||
- <a href="int-10.htm" tppabs="http://www.ctyme.com/intr/int-10.htm">
|
||||
Int 10h</a>
|
||||
- <a href="alpha-v.htm" tppabs="http://www.ctyme.com/intr/alpha-v.htm">
|
||||
V</a>
|
||||
</b><p><p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
|
||||
<table border=1 cellpadding=3 cellspacing=1>
|
||||
<td>
|
||||
<a href="rb-0220.htm" tppabs="http://www.ctyme.com/intr/rb-0220.htm">
|
||||
<img src="lup.gif" tppabs="http://graphics.ctyme.com/gif/lup.gif" border=0 alt=Prev></a>
|
||||
<a href="rb-0222.htm" tppabs="http://www.ctyme.com/intr/rb-0222.htm">
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||||
<img src="ldown.gif" tppabs="http://graphics.ctyme.com/gif/ldown.gif" border=0 alt=Next></a>
|
||||
<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">
|
||||
<img src="lhome.gif" tppabs="http://graphics.ctyme.com/gif/lhome.gif" border=0 alt=Ralf Brown Page></a>
|
||||
<td><a href="int.htm" tppabs="http://www.ctyme.com/intr/int.htm">Interrups</a></td>
|
||||
<td><a href="cat.htm" tppabs="http://www.ctyme.com/intr/cat.htm">Categories</a></td>
|
||||
<td><a href="alpha.htm" tppabs="http://www.ctyme.com/intr/alpha.htm">Contents</a></td>
|
||||
</td></table><p>
|
||||
|
||||
<!-- Bottom Link Start -->
|
||||
|
||||
<center>
|
||||
|
||||
<p><table border=1 bgcolor="#ffff99"><tr><td>
|
||||
<table border=0 height=80>
|
||||
<tr align=center><td width="65">
|
||||
|
||||
<a href="javascript:if(confirm('http://www.ctyme.com/sponsor.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/sponsor.htm'" tppabs="http://www.ctyme.com/sponsor.htm">
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<img src="tip.gif" tppabs="http://graphics.ctyme.com/gif/tip.gif" ALT="Sponsors" height="40" width="40"></a>
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<br><a href="javascript:if(confirm('http://www.ctyme.com/sponsor.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/sponsor.htm'" tppabs="http://www.ctyme.com/sponsor.htm">Shopping</a>
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</td><td width="65">
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<a href="javascript:if(confirm('http://talk.ctyme.com/webx.cgi?13@@.ee6b2be \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://talk.ctyme.com/webx.cgi?13@@.ee6b2be'" tppabs="http://talk.ctyme.com/webx.cgi?13@@.ee6b2be">
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</td><td width="65">
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<a href="javascript:if(confirm('http://www.ctyme.com/map.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/map.htm'" tppabs="http://www.ctyme.com/map.htm">
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</td><td width="90">
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<center>
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<FORM ACTION="https://secure.paypal.com/cgi-bin/webscr" tppabs="https://secure.paypal.com/cgi-bin/webscr" METHOD="POST" traget="_blank">
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<INPUT TYPE="hidden" NAME="cmd" VALUE="_xclick">
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<INPUT TYPE="hidden" NAME="business" VALUE="marc@perkel.com">
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<INPUT TYPE="hidden" NAME="return" VALUE="http://www.perkel.com">
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<INPUT TYPE="hidden" NAME="item_name" VALUE="Donation To Support this Site">
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<INPUT TYPE="hidden" NAME="no_intl" VALUE="1">
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<INPUT TYPE="image" SRC="x-click-but7.gif" tppabs="http://images.paypal.com/images/x-click-but7.gif" vspace=9
|
||||
NAME="submit" ALT="Make payments with PayPal - it's fast, free and secure!">
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</FORM>
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</td></tr></table></td></tr></table><p>
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<center>
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<p>
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<a href="javascript:if(confirm('http://www.ctyme.com/hosting/index.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/hosting/index.htm'" tppabs="http://www.ctyme.com/hosting/index.htm" target="_blank">
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border=3 height=60 width=468></a>
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<p>
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<!-- Ad End --->
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</center>
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<FORM ACTION="http://service.bfast.com/bfast/click" target="_blank">
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<INPUT TYPE="hidden" NAME="siteid" VALUE="30472466" >
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<INPUT TYPE="hidden" NAME="bfpage" VALUE="horizontal">
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<INPUT TYPE="hidden" NAME="bfmid" VALUE="27253343" >
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<INPUT TYPE="hidden" NAME="num" VALUE="30">
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<table bgcolor=white border=3><tr><td>
|
||||
<table bgcolor=white border=0>
|
||||
<tr><td>
|
||||
<IMG SRC="serve-bfmid=27253343&siteid=30472466&bfpage=horizontal.gif" tppabs="http://service.bfast.com/bfast/serve?bfmid=27253343&siteid=30472466&bfpage=horizontal" BORDER="0" WIDTH="1" HEIGHT="1" align=right NOSAVE >
|
||||
<center><b>Search the web with Google</b></center>
|
||||
</td></tr><tr><td>
|
||||
<TABLE cellpadding=0 cellspacing=5 bgcolor="#FFFFFF">
|
||||
<tr><td bgcolor="#0000cc"><IMG SRC="cleardot.gif" tppabs="http://www.google.com/images/cleardot.gif" height=1 border="0" ALT="Google"></td></tr><tr><td>
|
||||
<IMG SRC="affiliate_logo.gif" tppabs="http://www.google.com/affiliates/affiliate_logo.gif" border="0" ALT="Google" align="center">
|
||||
<INPUT TYPE=text name=q size=30 maxlength=255 value="">
|
||||
<INPUT type=submit name=sa VALUE="Go">
|
||||
</td></tr>
|
||||
<tr><td bgcolor="#0000cc"><IMG SRC="cleardot.gif" tppabs="http://www.google.com/images/cleardot.gif" height=1 border="0" ALT="Google"></td></tr></TABLE>
|
||||
</td></tr></table>
|
||||
</tr></td></table>
|
||||
</FORM>
|
||||
|
||||
</center>
|
||||
|
||||
|
||||
<p><img src="rbline.gif" tppabs="http://graphics.ctyme.com/gif/rbline.gif" width="100%" alt="------"><p>
|
||||
|
||||
<!-- Bottom Link End -->
|
||||
|
||||
</BODY>
|
||||
</HTML>
|
||||
Reference in New Issue
Block a user