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MODE 4 - Revision history
2024-03-28T20:48:17Z
Revision history for this page on the wiki
MediaWiki 1.30.0-rc.0
http://beebwiki.mdfs.net/index.php?title=MODE_4&diff=2896&oldid=prev
Jgharston at 18:22, 12 October 2016
2016-10-12T18:22:40Z
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<td colspan="2" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: white; color:black; text-align: center;">Revision as of 18:22, 12 October 2016</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1" >Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Display]]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Starship Command gameplay screenshot.png|right|''Starship Command'' (Acornsoft, 1983)]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Starship Command gameplay screenshot.png|right|''Starship Command'' (Acornsoft, 1983)]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Vortex gameplay screenshot.png|right|''Vortex'' (Software Invasion, 1983)]]</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>[[Image:Vortex gameplay screenshot.png|right|''Vortex'' (Software Invasion, 1983)]]</div></td></tr>
<tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l53" >Line 53:</td>
<td colspan="2" class="diff-lineno">Line 54:</td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|- style="vertical-align:top"</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|- style="vertical-align:top"</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| Video ULA palette register file</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| Video ULA palette register file</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>| &07 &17 &27 &37<del class="diffchange diffchange-inline"><br> </del>&47 &57 &67 &77<br> &80 &90 &A0 &B0<del class="diffchange diffchange-inline"><br> </del>&C0 &D0 &E0 &F0</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| &07 &17 &27 &37 &47 &57 &67 &77<br> &80 &90 &A0 &B0 &C0 &D0 &E0 &F0</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|- style="vertical-align:top"</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|- style="vertical-align:top"</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| [[CRTC]] register file</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>| [[CRTC]] register file</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>| &3F &28 &31 &24<del class="diffchange diffchange-inline"><br> </del>&26 &00 &20 &22<del class="diffchange diffchange-inline"><br> </del>&01 &07 &67 &08<br> (from table in [[MOS 1.20]] at &C486..&C491)</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| &3F &28 &31 &24 &26 &00<ins class="diffchange diffchange-inline"><br> </ins>&20 &22 &01 &07 &67 &08<br> (from table in [[MOS 1.20]] at &C486..&C491)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|}</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>|}</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins class="diffchange diffchange-inline">{{MODE}}</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>-- [[User:Beardo|beardo]] 14:13, 16 September 2006 (BST)</div></td><td class='diff-marker'> </td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>-- [[User:Beardo|beardo]] 14:13, 16 September 2006 (BST)</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[Category:Display]]</del></div></td><td colspan="2"> </td></tr>
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Jgharston
http://beebwiki.mdfs.net/index.php?title=MODE_4&diff=1586&oldid=prev
WikiSysop: 1 revision
2015-03-08T18:12:43Z
<p>1 revision</p>
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<td colspan="1" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Revision as of 18:12, 8 March 2015</td>
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WikiSysop
http://beebwiki.mdfs.net/index.php?title=MODE_4&diff=352&oldid=prev
WikiSysop: 1 revision
2015-03-08T00:13:08Z
<p>1 revision</p>
<table class="diff diff-contentalign-left" data-mw="interface">
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<td colspan="1" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Revision as of 00:13, 8 March 2015</td>
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WikiSysop
http://beebwiki.mdfs.net/index.php?title=MODE_4&diff=1585&oldid=prev
WikiSysop: 1 revision
2013-08-28T22:58:17Z
<p>1 revision</p>
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<td colspan="1" style="background-color: white; color:black; text-align: center;">← Older revision</td>
<td colspan="1" style="background-color: white; color:black; text-align: center;">Revision as of 22:58, 28 August 2013</td>
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WikiSysop
http://beebwiki.mdfs.net/index.php?title=MODE_4&diff=351&oldid=prev
WikiStrator: Physical Colour > Actual Colour
2007-06-10T19:56:27Z
<p>Physical Colour > Actual Colour</p>
<p><b>New page</b></p><div>[[Image:Starship Command gameplay screenshot.png|right|''Starship Command'' (Acornsoft, 1983)]]<br />
[[Image:Vortex gameplay screenshot.png|right|''Vortex'' (Software Invasion, 1983)]]<br />
[[Image:Tomcat gameplay screenshot.png|right|''Tomcat'' (Players, 1989)]]<br />
'''MODE 4''' is a medium-resolution screen [[MODE]], introduced on the BBC Micro Model A and supported by the entire BBC series including the Archimedes. It allows detailed graphics to be shown while leaving 15 KB or more free for programs; however to achieve this the display is made monochrome.<br />
<br />
In [[Elite]] and Revs a custom interrupt routine splits the screen in two; the top half is configured as MODE 4 to show the exterior view in detail.<br />
<br />
{| class="wikitable" style="text-align:left"<br />
|+MODE 4<br />
| Type<br />
| colspan="2" | Graphical ('[[ASCII]]')<br />
|- style="vertical-align:top"<br />
| rowspan="2" | Resolution<br />
| Text<br />
| 40 &times; 32 characters<br />
|- style="vertical-align:top"[[Media:Example.ogg]]<br />
| Graphics<br />
| 320 &times; 256 pixels<br />
|- style="vertical-align:top"<br />
| Character size<br />
| colspan="2" | 8 &times; 8 pixels, user definable<br />
|- style="vertical-align:top"<br />
| Pixel aspect<br />
| colspan="2" | 1:1 (square)<br />
|- style="vertical-align:top"<br />
| Bits per pixel<br />
| 1<br />
|- style="vertical-align:top"<br />
| rowspan="3" | Default palette<br />
! Logical colour<br />
! Actual colour<br />
|- style="vertical-align:top"<br />
| 0<br />
| 0 (black)<br />
|- style="vertical-align:top"<br />
| 1<br />
| 7 (white)<br />
|- style="vertical-align:top"<br />
| rowspan="2" | Memory<br />
| allocated<br />
| 10240 bytes<br />
|- style="vertical-align:top"<br />
| on screen<br />
| 10240 bytes<br />
|- style="vertical-align:top"<br />
| rowspan="1" | Address range<br />
| Model B ''etc.''<br />
| &5800..&7FFF<br />
|- style="vertical-align:top"<br />
| rowspan="3" | Configuration<br />
| [[Video ULA]] control register<br />
| &88<br />
|- style="vertical-align:top"<br />
| Video ULA palette register file<br />
| &07 &17 &27 &37<br> &47 &57 &67 &77<br> &80 &90 &A0 &B0<br> &C0 &D0 &E0 &F0<br />
|- style="vertical-align:top"<br />
| [[CRTC]] register file<br />
| &3F &28 &31 &24<br> &26 &00 &20 &22<br> &01 &07 &67 &08<br> (from table in [[MOS 1.20]] at &C486..&C491)<br />
|}<br />
<br />
-- [[User:Beardo|beardo]] 14:13, 16 September 2006 (BST)<br />
[[Category:Display]]</div>
WikiStrator