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authorMartin Arver <martin.arver@gmail.com>2006-03-11 07:52:11 +0000
committerMartin Arver <martin.arver@gmail.com>2006-03-11 07:52:11 +0000
commitcc4dc39dded647a5c3e62eae0c5577b69693b289 (patch)
treed436ab4ac6d5838de94b2957880d30d0134fe6a8 /manual
parentf9765d3f5c503d1ea2ef7467294eeac275643ce5 (diff)
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Patch #4813 by Nils Wallménius. Fixes to the Chip-8 section of the manual
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8993 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'manual')
-rw-r--r--manual/plugins/chip8emulator.tex49
-rw-r--r--manual/plugins/main.tex5
2 files changed, 40 insertions, 14 deletions
diff --git a/manual/plugins/chip8emulator.tex b/manual/plugins/chip8emulator.tex
index 1c8575b687..dee286d06c 100644
--- a/manual/plugins/chip8emulator.tex
+++ b/manual/plugins/chip8emulator.tex
@@ -1,28 +1,53 @@
\subsection{\label{ref:Chip8emulator}Chip{}-8 Emulator}
-The Chip{}-8 Emulator allows you to play many old chip8 games found on
-the Net. It modifies Rockbox, so file extensions .ch8 will be
-recognised as chip8 games. Just press PLAY on a .ch8 file to start a
-game.
+Chip8 is a kind of assembly language for a long-gone architecture.
+This plugin runs games written using the chip8 instructions.
+Just press PLAY on a .ch8 file to start a game.
There are lots of tiny Chip8 games (usually only about 256 bytes to a
couple of KB) which were made popular by the HP48
calculator's emulator for them. The original Chip8 had
64x32 pixel graphics, and the new superchip emulator supports 128x64
-graphics, which almost fits on the Recorder's display.
-The only problem is they are based on a 4x4 keyboard, but since most
+graphics.
+
+The only problem is that they are based on a 4x4 keyboard, but since most
games do not use all of the buttons, this can easily be worked around.
-Some places where can you can find .ch8 files:
+To do this, one may put a ".c8k" file with the same name as the
+original program which contains new key mappings (for BLINKY.ch8, one
+writes a BLINKY.c8k file).
+That c8k file contains 16 characters
+describing the mapping from the Chip8 keyboard to the default key
+mapping (that way, several Chip8 keys can be pressed using only one
+Rockbox key). For example, a file containing the single line:\\\\
+\textbf{0122458469ABCDEF}\\\\
+would correspond to the following non-default mappings:\\\\
+3-\textgreater 2\hspace{1cm} 6-\textgreater 8\hspace{1cm} 7-\textgreater 4\hspace{1cm} 8-\textgreater 6\\\\
+Default keymappings:
+\begin{table}[ht!]
+ \begin{center}
+ \begin{footnotesize}
+ \begin{tabular}{@{}*{16}{@{\hspace{1mm}}c@{\hspace{1mm}}|}@{\hspace{1mm}}c@{}}\toprule
+ \textbf{Chip8 key} & 0 & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & A & B & C & D & E & F\\
+ \textbf{Key} &
+ \opt{recorder,recorderv2fm}{& F1 & UP & F3 & LEFT & PLAY & RIGHT & F2 & DOWN & ON & & & & & &}
+ \opt{ondio}{& & UP & & LEFT & MODE & RIGHT & & DOWN & & & & & & &}
+ \opt{h1xx}{& & UP & & LEFT & SELECT & RIGHT & & DOWN & & & & & & &}
+ \opt{h300}{& & UP & & LEFT & NAVI & RIGHT & & DOWN & & & & & & &}
+ \opt{ipodcolor,ipodnano}{& & Scroll back & & LEFT & PLAY & RIGHT & & Scroll forward& & & & & & &}
+ \\\bottomrule
+ \end{tabular}
+ \end{footnotesize}
+ \end{center}
+\end{table}
+Some places where can you can find .ch8 files:
\begin{itemize}
-\item The original chip8 patch had several attached:
-\url{http://sourceforge.net/tracker/index.php?func=detail&aid=628509&group_id=44306&atid=439120}
+\item The PluginChip8 page on www.rockbox.org has several attached:
+\url{http://www.rockbox.org/twiki/bin/view/Main/PluginChip8}
\item Check out the HP48 chip games section:
\url{http://www.hpcalc.org/hp48/games/chip/}
-\item Check out the PC emulator by the guy who wrote the HP48 emulator:
+\item PC emulator by the guy who wrote the HP48 emulator:
\url{http://www.pdc.kth.se/~lfo/chip8/CHIP8.htm}
\item Links to other chip8 emulators:
\url{http://www.zophar.net/chip8.html}
\end{itemize}
-
-
diff --git a/manual/plugins/main.tex b/manual/plugins/main.tex
index 6eb57c0cd3..be5c92879c 100644
--- a/manual/plugins/main.tex
+++ b/manual/plugins/main.tex
@@ -16,7 +16,8 @@ loaded, run and then exited, which returns control to Rockbox. Music
will carry on playing whilst plugins are being run.
\section{Games}
-See also the Chip{}-8 emulator on page \pageref{ref:Chip8emulator}.
+\opt{recorder,recorderv2fm,ondio,h1xx,h300,ipodcolor,ipodnano}
+ {See also the Chip{}-8 emulator on page \pageref{ref:Chip8emulator}.}
\opt{recorder,recorderv2fm,ondio,h1xx,h300,ipodcolor,ipodnano}{\input{plugins/bejeweled.tex}}
@@ -71,7 +72,7 @@ They cannot be run directly but are started by ``playing''
the associated file. Viewers are stored in the
\textbf{/.rockbox/viewers/ }directory.
-\opt{recorder,recorderv2fm,ondio}{\input{plugins/chip8emulator.tex}}
+\opt{recorder,recorderv2fm,ondio,h1xx,h300,ipodcolor,ipodnano}{\input{plugins/chip8emulator.tex}}
\opt{recorder,recorderv2fm,ondio,h1xx,h300}{\input{plugins/jpegviewer.tex}}