[ rockbox-Patches-628509 ] Chip8 emulator

Patches item #628509, was opened at 2002-10-25 01:07
Message generated for change (Comment added) made by nobody
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Category: plugins
Group: None
Status: Closed
Resolution: Accepted
Priority: 3
Submitted By: Alex Wenger (blueloop)
Assigned to: Jörg Hohensohn (hohensoh)
Summary: Chip8 emulator

Initial Comment:
The Chip8-Emulator allows you to play many old chip8
games found on the Net....
It modifies rockbox, so fileendings *.ch8 wil be recognised
as chip8 games

ToDo:
- less Memory
- more speed
- load individual keymapping  for games
  (Chip8 Maschines have 16Keys, some games use
  unusual Key and ar not playable yet)
- Sound (more some sort of Beep)
- SCHIP Emulation for more Games (but the display is a
  bit small, but you can modifiy CHIP-Games, there are
  free Disassembler/Assembler)
- make library of tested Games and put some
  gamename.txt files with infos along it

Blueloop (a.wenger@xxxxxx)


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Comment By: Nobody/Anonymous (nobody)
Date: 2003-12-14 22:33

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for some reason i cant seem to get the chip8 games to work 
on my recorder. the game i select loads up and i get some 
text, then i see two vertical lines and nothing else. no 
buttons work but the off key. what am i doing wrong?

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Comment By: Jörg Hohensohn (hohensoh)
Date: 2003-10-31 04:38

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I ported the emulator to be a plugin, it's in cvs now. I leave 
this open for a while as a resource to get the .ch8 files and 
for the ToDo's.

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-10-30 05:35

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It works quite well on the recorder. the only issue is that the 
fast moving little objets are soooooooooo hard to follow.

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-10-11 09:52

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Can this work on the Recorder? 

I dont know anything in programming or all that stuff, and Im 
interested in the cool games, can anyone email me the chip8 
emulator to my email: golot@xxxxxx
Please send me it...

Thanks, Run

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Comment By: Lee Pilgrim (diddystar5)
Date: 2003-07-24 18:03

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I could see this  working like the viewer plugin. Would you 
change it to work like this please?

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Comment By: Blue Chip (bluechip)
Date: 2003-06-27 00:01

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Alex,
You wanted more speed, so I thought I would tweak your 
excellent code as such ...I have found a couple of interesting instruction 
implementations ...could you tell me what you used as a reference to the 
instruction set ...the only ref I have found 
is:
http://members.aol.com/autismuk/chip8/chip8def.htm
...and 
this disagrees with some of your code.
I would normally suspect your 
code (no disrespect) but the thing it that your code clearly seems to work 
(afaik), so I am baffled!
Cheers,
Bluechip

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-06-24 23:01

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does that only work with the fm recorder, or will it work with 
the regular recorder as well?

Thanks

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-06-15 22:05

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a nice person compiled and dcc'd it to me compiled
heres a link (fm recorder version)  

http://www.kitejumping.org/ch8ajbrec.ajz

<a 
href="http://www.kitejumping.org/ch8ajbrec.ajz";>linkified</a>
works really good, just have to squint to view the ball in 
breakout

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-06-15 21:26

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looks really nice, now if only i could get a compiled fm 
recorder version....

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-03-12 05:19

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jkou

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-02-28 18:27

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Hello

How add the three parts of the diff file in their respectively 
files?

thanx

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-02-04 16:10

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Yes, I second that request - it would be most appreciated!

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-01-28 19:10

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yes, could someoen please compile this?

Thanks

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Comment By: Nobody/Anonymous (nobody)
Date: 2003-01-18 13:24

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blueloop: could you please compile this patch for us? there 
have been many request for this, and linus said to ask you, 
becaue he doesnt want to do it. Can you?


Thanks

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Comment By: Huw Smith (huwsy)
Date: 2003-01-15 10:23

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No i found what i missed out. I missed part of the diff file when 
adding it.


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Comment By: Linus Nielsen Feltzing (linusnielsen)
Date: 2003-01-15 05:37

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For heaven's sake, STOP ASKING US TO COMPILE THIS PATCH FOR
YOU!!!

I repeat:

This patch is here for us developers to test and later on
include in Rockbox, if we feel it is interesting enough. It
is NOT intended for users. If you manage to use it, fine,
but don't bother us with support questions on some code that
WE DIDN*T EVEN WRITE.

Go ask the guy who wrote the patch.


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Comment By: Nobody/Anonymous (nobody)
Date: 2003-01-14 18:02

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Could you compile rockbox 1.4 and rockbox-daily-200301XX
with the 
chip8 mod and then post them?

becuz i gett the following error.  As 
the code is compileing
"lcd_framebuffer[24+x][y] = 
w;"
Too

Calen


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Comment By: Huw Smith (huwsy)
Date: 2003-01-14 07:05

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Has anyone got this to work, as I have tried compiling it in 
with rockbox but I get the following error.  As the code is 
trying to set


lcd_framebuffer[24+x][y] = w;


which fails as lcd_framebuffer apears to be a function which 
returns a value as aposed to being able to accept a sent 
value.




/home/rockbox/build -lrockbox -lgcc -L../firmware 
-T../firmware/app.lds 
-Wl,-Map,/home/rockbox/build/archos.map


/home/rockbox/build/recorder/chip8.o: In function 
`chip8_update_display':


/home/rockbox/build/recorder/chip8.o(.text+0x660): undefined 
reference to `lcd_framebuffer'


collect2: ld returned 1 exit status


make[1]: *** [/home/rockbox/build/archos.elf] Error 1


make[1]: Leaving directory `/home/rockbox/apps'


make: *** [apps] Error 2




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Comment By: Linus Nielsen Feltzing (linusnielsen)
Date: 2002-12-30 09:51

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Once and for all:

The patches in this patch tracker are source code changes
sent TO the Rockbox team FROM fellow developers. They are
not intended for end users.

If you don't understand how to apply this patch, then the
patch is not for you.


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Comment By: Nobody/Anonymous (nobody)
Date: 2002-12-29 23:45

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please tell me how to get this to work


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Comment By: Ronnie Duong (rdizzle3)
Date: 2002-12-23 21:04

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how did you get this to work? I don't understand what to do. 

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=439120&aid=628509&group_id=44306