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Replace invalid characters with HTML entities

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— with —
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+ with +
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ç with ç
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Fix C++
θ with θ
Yen symbol instead of times
Fix broken apos
Bullet again
E-circumflex
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James Gregory 2013-12-30 12:50:32 +11:00
commit 500e7f5654
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31-05.html
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@ -300,10 +300,10 @@ Codeends
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<P>When you run Listing 31.2, note the extremely smooth edges and fine gradations of color, especially in the screens with slanting color bars. The displays produced by Listing 31.2 make it clear that 320&#215;400 256-color mode can produce effects that are simply not possible in any 16-color mode.
<P>When you run Listing 31.2, note the extremely smooth edges and fine gradations of color, especially in the screens with slanting color bars. The displays produced by Listing 31.2 make it clear that 320x400 256-color mode can produce effects that are simply not possible in any 16-color mode.
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<H3><A NAME="Heading8"></A><FONT COLOR="#000077">Something to Think About</FONT></H3>
<P>You can, if you wish, use the display memory organization of 320&#215;400 mode in 320&#215;200 mode by modifying <B>Set320&#215;400Mode</B> to leave the maximum scan line setting at 1 in the mode set. (The version of <B>Set320&#215;400Mode</B> in Listings 31.1 and 31.2 forces the maximum scan line to 0, doubling the effective resolution of the screen.) Why would you want to do that? For one thing, you could then choose from not two but <I>four</I> 320&#215;200 256-color display pages, starting at offsets 0, 4000H, 8000H, and 0C000H in display memory. For another, having only half as many pixels per screen can as much as double drawing speeds; that&#146;s one reason that many games run at 320&#215;200, and even then often limit the active display drawing area to only a portion of the screen.</P><P><BR></P>
<P>You can, if you wish, use the display memory organization of 320x400 mode in 320x200 mode by modifying <B>Set320x400Mode</B> to leave the maximum scan line setting at 1 in the mode set. (The version of <B>Set320x400Mode</B> in Listings 31.1 and 31.2 forces the maximum scan line to 0, doubling the effective resolution of the screen.) Why would you want to do that? For one thing, you could then choose from not two but <I>four</I> 320x200 256-color display pages, starting at offsets 0, 4000H, 8000H, and 0C000H in display memory. For another, having only half as many pixels per screen can as much as double drawing speeds; that&rsquo;s one reason that many games run at 320x200, and even then often limit the active display drawing area to only a portion of the screen.</P><P><BR></P>
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