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Irem M82 conversions

Hammy said:
For the sound rom I also had some issues. Can't remember exactly what it was.
The instructions in the patcher are correct, but it's easy to make a mistake.

Attached is what got mine working.

For the graphics glitch, not seen that before. could be a board issue, rom issue (speed, wrong data, sockets can also be shit on irem as you know)
And for Gadget's conversions remove the wire hack from the video ram and restore the original trace.
Click to expand...
Thanks hammy, that got the audio working again. I used the original roms before, why is your rom working? :)
 
Flexing the board didnt do any good. I wonder if it has something to do with the eproms. i'm using TC571000D-20 (200ns). The only ones i could find in my boxes. i will mess with it tomorrow :)
 
-150 max as far as my tests have shown, Intel, ST, AMD all working well.
Those toshiba roms are strange beasts too as far as programming / reading goes.
 
Just to confirm the sprite rom layout as it can be a bit confusing at you have a 64k and 32k file to combine into the 1Mb eproms.
N0 = "rt_r-00.1h" ($00000-$0FFFF) + "rt_r-01.1j" ($10000-$17FFF) + empty ($18000-$1FFFF)
N1 = "rt_r-10.1k" ($00000-$0FFFF) + "rt_r-11.1l" ($10000-$17FFF) + empty ($18000-$1FFFF)
N2 = "rt_r-20.3h"($00000-$0FFFF) + "rt_r-21.3j" ($10000-$17FFF) + empty ($18000-$1FFFF)
N3 = "rt_r-30.3k"($00000-$0FFFF) + "rt_r-31.3l" ($10000-$17FFF) + empty ($18000-$1FFFF)

The GFX rom files are both 32K and will only fill the first half of a 1Mb eprom.
1st file ($00000-$07FFF) + 2nd File ($08000-$0FFFF)

BTW I have just finished getting this running perfectly on an M85(Pound for Pound) with no hardware mods.
 
GadgetFreak said:
Just to confirm the sprite rom layout as it can be a bit confusing at you have a 64k and 32k file to combine into the 1Mb eproms.
N0 = "rt_r-00.1h" ($00000-$0FFFF) + "rt_r-01.1j" ($10000-$17FFF) + empty ($18000-$1FFFF)
N1 = "rt_r-10.1k" ($00000-$0FFFF) + "rt_r-11.1l" ($10000-$17FFF) + empty ($18000-$1FFFF)
N2 = "rt_r-20.3h"($00000-$0FFFF) + "rt_r-21.3j" ($10000-$17FFF) + empty ($18000-$1FFFF)
N3 = "rt_r-30.3k"($00000-$0FFFF) + "rt_r-31.3l" ($10000-$17FFF) + empty ($18000-$1FFFF)

The GFX rom files are both 32K and will only fill the first half of a 1Mb eprom.
1st file ($00000-$07FFF) + 2nd File ($08000-$0FFFF)

BTW I have just finished getting this running perfectly on an M85(Pound for Pound) with no hardware mods.
Click to expand...
Yes i think i nailed it in regards of the Nx files. But just to point out, they are only at 96kB after have been concatenated.

Sweet job on that PfP conversion :)
 
frsj8112 said:
Yes i think i nailed it in regards of the Nx files. But just to point out, they are only at 96kB after have been concatenated.
Sweet job on that PfP conversion :)
Click to expand...
Thanks :)

The problem you have with the sprites is definitely related to the second half of the eprom, the 32k file.
If I only use the first file to fill the first half of the 1Mb eprom I get similar missing/corrupt sprites.
PM me your email address.
 
Can't it simply be you used JEDEC EPROMs when the boards expect non-JEDEC?
 
Problem solved. It was due to the lack of the last empty ($18000-$1FFFF) on the Nx roms. Thanks gadget :)
 
frsj8112 said:
Problem solved. It was due to the lack of the last empty ($18000-$1FFFF) on the Nx roms. Thanks gadget :)
Click to expand...
I have just updated the Arcade Rom Patcher to V4. It will now create full, socket named, rom sets for the M82 conversions, so in future it will just be a case of loading a single file to burn to each chip. A few people had issues with combining the files, not all burner software makes this very easy.
 
GadgetFreak said:
I have just updated the Arcade Rom Patcher to V4. It will now create full, socket named, rom sets for the M82 conversions, so in future it will just be a case of loading a single file to burn to each chip. A few people had issues with combining the files, not all burner software makes this very easy.
Click to expand...
Yeah I always try to make it the simplest for people.
 
hi guys

im just about to convery a major title 1 into a dual boot rtye 1 and 2

ive created my "burn" roms with arcade rom patcher v8

rtype 2 has 1 extra rom with i belive is a sound samples rom
is this correct ?
i thougth there would be the same ammount of roms for each game
just puzling me a little there

and do i just combine each rom with the same name
rtype 1 at the top and rtype2 straight under it

hope im making sence here lol

thanks

dave
 
You are correct about R-Type two having an extra EPROM for the audio samples. The original R-Type 1 PCB didn't have the sample hardware.

Yes, you'll want to combine each ROM with the same name. With Windows, the command would be similar to:

copy /b rtype-ROM1.bin + rtypeII-ROM1.bin rtype-combo-ROM1.bin

There's detailed instructions on how to setup your ROMs and wire up the switch to toggle between the two games on this thread here:
http://www.ukvac.com/forum/dual-boot-rtype-and-rtype-ii_topic368439.html
 
Thanks for the reply

Ive done all the work just having minor issues

Ive posted in this forum section
Hopefully someone can help me there

dave
 
dave11674 said:
Thanks for the reply

Ive done all the work just having minor issues

Ive posted in this forum section
Hopefully someone can help me there

dave
Click to expand...
Here is @Ace` ’s conversion ✌🏻

B4328CDF-16DA-40CC-A124-BA26554427A8.jpeg
E7478B25-B970-4290-BF1A-3FA1D60E83AF.jpeg
 
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