Arcade Rom Patcher (V14)

[cps_goodbuy]

I'd like to do a M82 Major Title to R-Type conversion. I read the old guides and I'm working out what to do using this fabulous patcher. Can someone help me, I need to confirm which eproms I need for a new complete set and which inexpensive programmer would be recommended? I started checking eBay for a programmer and new eproms but a bit lost as to which are the correct versions.

This is the Patch Info from the program:
PATCH INFO "R-Type"
CUSTOMA (M82): This modifies the M72 version of the game to work on the Major Title M82 board.
This patch also adds high score saving if you replace the ram chip as listed in the HSS-NV RAM notes.
Program roms (4 x 1Mb), Sprite roms (4 x 1Mb), GFX roms (4 x 1Mb), Sound rom (1 x 512Kb).
A new "Burn" sub folder will be created with correctly combined roms, named with the M82 socket location.
JUMPERS (M82): J5 near IC48(C1) needs to be changed from '1MM' to 'OT', leave J4 near IC48(C1) as 'OT'.

You will see by looking at the board that the N0-3 and the C0-3 roms are mask type and will need to be removed from the board. This must be done carefully as there are fine tracks that run between the pins. The safest way is to cut each pin next to the chip casing itself then remove each pin separately and suck the solder from each hole.
For these 8 locations you will need to use a 32 pin socket and a 27C010 eprom. The Winbond W27c010 electrically eraseable chips also work well.
For the program (4 x 27c010) & sound (1 x 27c512) roms it is possible to erase the existing eproms and reprogram them if you have an eprom eraser.
Just about any eprom programmer will be able to handle this size of eprom as they are only 32 pins.
To attempt this conversion you must be capable with a soldering iron or you could damage the board.

Thank you so much for this rundown! I agree with your suggestion, cutting each pin would be the safest approach. I have some experience soldering but need to read more about eprom programming. Perhaps I should start with r-type 2.

 

[GadgetFreak]

Thank you so much for this rundown! I agree with your suggestion, cutting each pin would be the safest approach. I have some experience soldering but need to read more about eprom programming. Perhaps I should start with r-type 2.

I think you are mixing my patches up with the original ones.
The amount of work needed for R-Type / R-Type II using my patches is the same. No circuit modifications are needed for my patches.
The only thing you need to do for my patches is replace roms. Unfortunately this means you still have to cut out the 8 mask roms and change jumpers but you do not need to cut tracks or add extra TTL chips and wires.

 

[cps_goodbuy]

Thank you so much for this rundown! I agree with your suggestion, cutting each pin would be the safest approach. I have some experience soldering but need to read more about eprom programming. Perhaps I should start with r-type 2.

I think you are mixing my patches up with the original ones.
The amount of work needed for R-Type / R-Type II using my patches is the same. No circuit modifications are needed for my patches.
The only thing you need to do for my patches is replace roms. Unfortunately this means you still have to cut out the 8 mask roms and change jumpers but you do not need to cut tracks or add extra TTL chips and wires.

Ah I see, I read everything from the 2011 Swan conversions up to your patches and I did mix up some information. Thanks

 

[golani]

Namco System 2 - Four Trax

im wondering if there are playable other games like Rolling Thunder 2 or Cosmo Gang - The Video on this DERIVATIVE HARDWARE?

 

[VectorGlow]

This is AMAZING work. How did I miss this?

I was just thinking the same thing as I've only just been made aware of it. Some amazing work by GadgetFreak. Well done indeed.

I was made aware of Arcade ROM Patcher (ARP) by grobda as I was asking about making a dual boot R-Type / R-Type II in this new thread:

http://ukvac.com/forum/topic368439_post1078051.html

grobda mentioned ARP and suggested how it could be done in the above thread.

If that is feasible then would it also be relatively easy to also add a high score save that would handle both games? Or would that only work for one of them?

 

[John Bennett]

Namco System 2 - Four Trax

im wondering if there are playable other games like Rolling Thunder 2 or Cosmo Gang - The Video on this DERIVATIVE HARDWARE?

System 2 special games like Four Trax and Final Lap have very different video PCBs with different functions (i.e customs) to the ‘generic’ System 2 games, so I think that’s beyond a patch. Happy to be wrong though.

 

[grobda]

If that is feasible then would it also be relatively easy to also add a high score save that would handle both games? Or would that only work for one of them?

The RAM would be overwritten and/or corrupted each time you swapped games. You'd need to rewrite the patches to share the RAM but that's not likely to be possible as I doubt the RAM has half of it's capacity free for a second game to use.

Hardware-wise you could piggyback another RAM chip and tie it and the original chips CS lines to the toggle switch, but you'd need a dpdt switch wired to supply opposite signals or an inverter on one line.

Or you could use a ram chip with double the capacity and toggle the highest address pin same as the ROMS, but not sure off the top of my head what's available in that size.

 

[VectorGlow]

Thanks again grobda. Appreciate your help.

 

[kravex]

Has anyone had issues converting to a Strider?
The board boots, shows everything ok on the tests but then the game doesn't boot, the screen stays black.

Checked and the ICs all seem correctly burned.

ps: Ghost and Ghouls and 1941 work fine on the same board.

kravex2019-07-08 22:53:04

 

[GadgetFreak]

I have a converted Strider and it does work fine for me.
First thing that comes to mind is eprom speed!
Just checked my board and the 27C4096's are 85ns.
Certainly when I was working out the conversion I originally left the Pang3 protection chip in place and encoded the eprom data. This worked fine for GnG but Strider kept crashing which I put down to the delay being put onto the data lines from the eproms.

 

[kravex]

I think you might be right, i went and check and i used some MSM27C402K-15 instead of the 27C4096's. I used them because they were on the PANG 3 B board on the slot were the 27C4096 usted to be.
I check the datasheet for the MSM27C402K-15 and it says the access time is 150ns max.

Gonna try and burn on some 27C4096 instead and see if it works.

ps: thanks for the patcher, really great work

 

[AlxUnderBase]

Thank you, Chris & Hammy !
AlxUnderBase2019-11-06 17:50:25

 

[GadgetFreak]

Thank you, Chris & Hammy !

For what?

 

[backflipper]

Love your work on this!

I was wondering if you have given thought to the Konami GX system? I have a few run and guns that would be awesome with Sexy parodius or Salamander 2 on them..

[EDIT] -Nemesis +Salamander 2

backflipper2019-11-07 11:59:15

 

[glstar]

Thanks for the great work.



Do you know where/if Dragon Spirit it could be converted?

I know there are unprotect romset to convert system1 boards to Dragon Spirit, but i cannot find it.

It's somewhere in your patcher?

 

[GadgetFreak]

Have a look here
http://arcarc.xmission.com/Kits%20and%20Hacks/Namco%20System%201%20Roms%20Patched/

 

[glstar]

Have a look here

http://arcarc.xmission.com/Kits%20and%20Hacks/Namco%20System%201%20Roms%20Patched/

Thanks for the info

 

[jizzfu]

Hi! I have a problem with a Double Dragon pcb (bootleg with 6803), it looks almost identical to original one.
My issue is image always upside down, i have already changed the dipswitch and the 74ls244... not resolving the problem.

I was thinking if it is possibile to flip image via rom hack, then i found this awesome tool! Unluckly Double Dragon in not in list, someone know how to mod the rom (maybe in hex) to fix the image?

Merry Xmas to All and Thank you for help and this great tool!

 

[GadgetFreak]

I have often found just 1 or 2 of the DIP switches in an 8 way to be broken. Did you check to see if that individual switch would pull the line to ground when the switch was on?

 

[jizzfu]

yes, the dip switch works i have noticed the trace of the n.8 of the dip was cutted (intentionally), i recovered the broken trace and if i turn on the n.8 the image is corrupted, i think that was removed for that.