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How can I find the CHR on a Barcrest ROM


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#1 cardie

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Posted 22 December 2013 - 02:39 AM

I thought the emu automatically does it, it just fills the box with FFFFF :( !


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#2 Mavroz

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Posted 22 December 2013 - 06:41 AM

If you are trying to find the Chr from the Space Raiders .bin file, i think it has been tried and isn't there although i may be wrong...



#3 Dougsta

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Posted 22 December 2013 - 10:47 AM

You need a hex editor, and you need to load the ROM into the editor and find the CHR manually. It sits at a specific address, but I can't remember which one it is. One of the layout creators will know.


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#4 Guest_DAD_*

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Posted 22 December 2013 - 11:15 AM

Nope its not done automatically.  You need a HEX editor and search for the 'string' shown in the pic.  Backtrack to the first instance of 'B0' and that's the number you need.  In the pic, the HEX Addr would be - 14C44

 

Hope this helps :)

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#5 impact

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Posted 22 December 2013 - 01:49 PM

Who's the Daddy :)


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#6 cardie

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Posted 22 December 2013 - 02:20 PM

Tried that the 'B0' and the String are on opposite lines, tried a couple of addresses which seem perfect but its still not having it :(


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#7 Guest_DAD_*

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Posted 22 December 2013 - 03:56 PM

Tried that the 'B0' and the String are on opposite lines, tried a couple of addresses which seem perfect but its still not having it :(

Which rom are you trying?  Could you attach it here?

 

Normally MPU5 roms come as P1, P2, P3 & P4.  its when they're loaded into MFME they're merged together into one Hex file.

 

If it a Red Gamimg rom then forget it, they're different altogether and the info I gave earlier won't work.



#8 Mavroz

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Posted 22 December 2013 - 04:09 PM

I did say it wouldn't as i have tried before... That is why i asked why you wanted it?

 

That is If it is Space Raiders.

 

I have lots and lots of these .bin files/roms but i believe them to be flash card files that do not run in the emulator.



#9 cardie

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Posted 22 December 2013 - 05:55 PM

There must be 2 types of roms then, the machine Ive had a good look at uses the usual 4 chips, the flash card is empty and the machine works, so there must be a set of ROMs that run somwhere if these arent the ones :(


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#10 Mavroz

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Posted 22 December 2013 - 06:20 PM

There may be a set of roms that run somewhere, yes. But this file will not run in the current emulator... I did say.

#11 Mavroz

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Posted 22 December 2013 - 06:26 PM

If you have access to one of these machines feel free to borrow the roms, send them to me and I will willingly dump them to try...
Until then I am afraid all we have is the flash .bin which doesn't seem supported.

Edited by fevernova, 22 December 2013 - 06:48 PM.


#12 impact

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Posted 22 December 2013 - 06:55 PM

Sorry Cardie. If you stick the file onto a compact flash card then programme the surface mounted flash roms  (They are not normal proms) Then remove the flash card and then the machine would be programmed and there is no need to leave the cf card in the machine so it would be empty. As it would keep saying bootstrap Vx.xx every time you powered the machine up waiting to be programmed. This is if you have that machine. The only part ive ever got going is loading that XXXXXXX.bin file into the sound part of the emu to export the sound banks.

 

with mfme what different things where there with 9.4 / 10.1 and 11.6


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#13 cardie

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Posted 22 December 2013 - 10:19 PM

Ah so instead of programming loads of individual chips they just use a flash card to program the chips that are already in the card? Seems a better way to do it.

 

Just confuses me that the EMU will run the roms just wont 'accept' the correct address :(

 

Thanks anyway :)


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#14 impact

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Posted 22 December 2013 - 10:40 PM

Yep yep so its just one file for the machine. No burning p1 and p2 programme and p3 and the p4 for the sound. It worked out cheaper to  produce and quicker as some machines like bully4you used 6 proms p1 and p2 programme and p3,4,5,6 are the sound


Your always welcome fella


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#15 cardie

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Posted 22 December 2013 - 10:47 PM

Yep yep so its just one file for the machine. No burning p1 and p2 programme and p3 and the p4 for the sound. It worked out cheaper to  produce and quicker as some machines like bully4you used 6 proms p1 and p2 programme and p3,4,5,6 are the sound


Your always welcome fella

Yes i remeber about Bully 4 You, there was a spare gamecard in my addams family when I got that back in 2009 and that (for some reason) was a bully 4 u game card I remeber it had 2 extra ones!


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#16 cardie

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Posted 30 July 2014 - 03:14 PM

I know im being annoying bringing this up, so its there no way what so ever of working out the CHR off the ROM file I have?

 

Somewhere at some point the Emulator will read the rom and it will try to find the CHR at a specific point, so cant we see where the emulator is looking to find where the CHR is?

 

If the CHR is in all the other MPU5 ROMs then why isnt it in this one?


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#17 andy-1

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Posted 30 July 2014 - 04:42 PM

PM hitthesix and see if he can help.



#18 vectra666

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Posted 30 July 2014 - 06:25 PM

try this I got it from ht6 too but still can't bleeding work it all out lol.

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#19 Guest_DAD_*

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Posted 30 July 2014 - 06:35 PM

try this I got it from ht6 too but still can't bleeding work it all out lol.

Its not that kind of CHR he's on about. 

 

I know your only trying to help but TBH you really should know the difference by now.


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#20 vectra666

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Posted 30 July 2014 - 06:47 PM

what tech's it for isn,t it mpu4 I ain't got a clue don't know how to add chr's yet prob never will, but not all perfect


Edited by vectra666, 30 July 2014 - 06:48 PM.

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