produced by the
Mullard SAA5050 series of Teletext Character Generators. The
SAA5050 is familiar to those of a certain age as the chip that
- produced the <code>MODE 7</code> display on the BBC
- Microcomputer. It generates characters from a 5 × 9 pixel
- matrix, smoothing diagonal lines to produce an interlaced 10 ×
- 18 matrix for each character. Bedstead extends that algorithm to
- continuity, converting a 5 × 9 pixel grid into an outline with
+ produced the <code>MODE 7</code> display on the BBC
+ Microcomputer. It generates characters from a 5 × 9 pixel
+ matrix, smoothing diagonal lines to produce an interlaced 10 × 18
+ matrix for each character. Bedstead extends that algorithm to
+ continuity, converting a 5 × 9 pixel grid into an outline with
smooth diagonals.</p>
<p>Bedstead includes all the character designs from the SAA5050
and its various sister chips, including Cyrillic and Hebrew
alphabets. It also has a large number of custom-designed glyphs,
- all of them of course based on the same 5 × 9 pixel grid.</p>
+ all of them of course based on the same 5 × 9 pixel grid.</p>
<p class="image-sample">
- <img alt="[ A sample of Bedstead’s characters ]" src="sample.png"/>
+ <img alt="[ A sample of Bedstead’s characters ]" src="sample.png"/>
</p>
<blockquote class="text-sample" style="text-align: center;">
<div>
<p>I believe that the original SAA5050 bitmap font is essentially
in the public domain in the United Kingdom as a result of
<a href="https://www.legislation.gov.uk/id/ukpga/1988/48/section/55"
- >Section 55 of the Copyright, Designs and Patents Act 1988</a>
+ >Section 55 of the Copyright, Designs and Patents Act 1988</a>
as applied by
<a href="https://www.legislation.gov.uk/id/ukpga/1988/48/schedule/1/paragraph/14/5"
- >subparagraph 14(5) of Schedule 1</a>. I’m not a lawyer, though,
+ >subparagraph 14(5) of Schedule 1</a>. I’m not a lawyer, though,
so this may well be wrong.
</p>
</li>
<li><a href="bedstead-10.bdf"><code>bedstead-10.bdf</code></a>,
<a href="bedstead-20.bdf"><code>bedstead-20.bdf</code></a> –
- Bitmap versions at 10 and 20 pixels high.</li>
+ Bitmap versions at 10 and 20 pixels high.</li>
<li><a href="bedstead-bold-20.bdf"><code>bedstead-bold-20.bdf</code></a>
- – Bold bitmap version at 20 pixels high.</li>
+ – Bold bitmap version at 20 pixels high.</li>
<li><a href="bedstead-10-df.png"><code>bedstead-10-df.png</code></a>,
<a href="bedstead-20-df.png"><code>bedstead-20-df.png</code></a>
– 10-pixel and 20-pixel tilesets for use with