Misc/abrash-black-book
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Change bold code snippets to inline code blocks

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James Gregory 2013-12-31 17:12:29 +11:00
commit 3c76d884ef
185 changed files with 1772 additions and 1772 deletions
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35-07.md
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@ -396,12 +396,12 @@ One point I do want to make is that Listing 35.3 incorporates a clever
notion for which credit is due Jim Mackraz, who described the notion in
a letter written in response to an article I wrote long ago in the late
and lamented *Programmer's Journal*. Jim's suggestion was that when
drawing lines for which |**DeltaX**| is greater than |**DeltaY**|, bits
drawing lines for which |`DeltaX`| is greater than |`DeltaY`|, bits
set to 1 for each of the pixels controlled by a given byte can be
accumulated in a register, rather than drawing each pixel individually.
All the pixels controlled by that byte can then be drawn at once, with a
single access to display memory, when all pixel processing associated
with that byte has been completed. This approach can save many **OUT**s
with that byte has been completed. This approach can save many `OUT`s
and many display memory reads and writes when drawing nearly-horizontal
lines, and that's important because EGAs and VGAs hold the CPU up for a
considerable period of time on each I/O operation and display memory