Strip comments and inline ids onto h*

45-05.html

@@ -10,16 +10,9 @@
   <meta name="vspubdate" content="07/01/97" />
   <meta name="vscategory" content="Web and Software Development: Game Development,Web and Software Development: Graphics and Multimedia Development" />
 
-  <title>Michael Abrash's Graphics Programming Black Book Special Edition: Dog Hair and Dirty Rectangles</title><!-- HEADER -->
-  <!-- Empty Reference Subhead -->
-  <!--ISBN=1576101746//-->
-  <!--TITLE=Michael Abrash's Graphics Programming Black Book Special Edition//-->
-  <!--AUTHOR=Michael Abrash//-->
-  <!--PUBLISHER=The Coriolis Group, Inc.//-->
+  <title>Michael Abrash's Graphics Programming Black Book Special Edition: Dog Hair and Dirty Rectangles</title>
   <meta name="chapter" content="45" />
   <meta name="pages" content="853-855" />
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@@ -39,7 +32,7 @@
 
   <p>In 640x400, 16-color mode, page 0 runs from offset 0 to offset 31,999 (7CFFH), and page 1 runs from offset 32,000 (7D00H) to 63,999 (0F9FFH). Page 1 is selected by programming the Start Address registers (CRTC registers 0CH, the high 8 bits, and 0DH, the low 8 bits) to 7D00H. Actually, because the low byte of the start address is 0 for both pages, you can page flip simply by writing 0 or 7DH to the Start Address High register (CRTC register 0CH); this has the benefit of eliminating a nasty class of potential synchronization bugs that can arise when both registers must be set. Listing 45.3 illustrates simple 640x400 page flipping.</p>
 
-  <p><b>LISTING 45.3 L45-3.C</b></p><!-- CODE //-->
+  <p><b>LISTING 45.3 L45-3.C</b></p>
   <pre>
 /* Sample program to exercise VGA 640x400 16-color mode page flipping, by
    drawing a horizontal line at the top of page 0 and another at bottom of page 1,
@@ -112,11 +105,11 @@ void Wait30Frames()
       while ((inp(INPUT_STATUS_1) &amp; 0x08) == 0) ;
    }
 }
-</pre><!-- END CODE //-->
+</pre>
 
   <p>After I described 640x400 mode in a magazine article, Bill Lindley, of Mesa, Arizona, wrote me to suggest that when programming the VGA to a nonstandard mode of this sort, it&rsquo;s a good idea to tell the BIOS about the new screen size, for a couple of reasons. For one thing, pop-up utilities often use the BIOS variables; Bill&rsquo;s memory-resident screen printer, EGAD Screen Print, determines the number of scan lines to print by multiplying the BIOS &ldquo;number of text rows&rdquo; variable times the &ldquo;character height&rdquo; variable. For another, the BIOS itself may do a poor job of displaying text if not given proper information; the active text area may not match the screen dimensions, or an inappropriate graphics font may be used. (Of course, the BIOS isn&rsquo;t going to be able to display text anyway in highly nonstandard modes such as Mode X, but it will do fine in slightly nonstandard modes such as 640x400 16-color mode.) In the case of the 640x400 16-color model described a little earlier, Bill suggests that the code in Listing 45.4 be called immediately after putting the VGA into that mode to tell the BIOS that we&rsquo;re working with 25 rows of 16-pixel-high text. I think this is an excellent suggestion; it can&rsquo;t hurt, and may save you from getting aggravating tech support calls down the road.</p>
 
-  <p><b>LISTING 45.4 L45-4.C</b></p><!-- CODE //-->
+  <p><b>LISTING 45.4 L45-4.C</b></p>
   <pre>
 /* Function to tell the BIOS to set up properly sized characters for 25 rows of
    16 pixel high text in 640x400 graphics mode. Call immediately after mode set.
@@ -134,7 +127,7 @@ void Set640x400()
    int86(0x10, &amp;regs, &amp;regs);           /* invoke the BIOS video interrupt
                                            to set up the text */
 }
-</pre><!-- END CODE //-->
+</pre>
 
   <p><br /></p>
 
@@ -153,10 +146,6 @@ void Set640x400()
 
   <div align="center">
     Graphics Programming Black Book &copy; 2001 Michael Abrash
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