Recent content by l_oliveira

Power the unit on with the AES Multi connected and measure the voltage across that capacitor. Measuring the resistance between the cap pins on this context is meaningless.

Not really, some of the newer hacks are patches made on top of encrypted sets so they can be used on original protected boards by just swapping EPROMs out. Beware of that. Only the CPS1Q conversions are 100% sure to be decrypted.

it was ack who posted a quick set of linux commands to scramble the rom using the same scramble as samsho5sp.

We had to scramble it to run in MAME, nothing more, nothing less. Samsho 5 and Samsho5 SP use different scrambles each.

That does not exist in the form you are expecting because it's the result of applying patches to the ROMs we're playing with right now and we're quite not sure how to get these patches out of the emulator right now... :)

It does not, we already know that. It matches a location test photo from circa 2004 (check thread backlog).

Yep, that is why I put screenshots with both japanese and english logos. Well we need to figure out how to patch the CROM and SROM then...

Okay, I just made this work on the MVS multi. I was assuming the P ROM from the release was scrambled, which is not the case. You only need it scrambled to make it work with MAME. Because of the C-ROMs not being CMC encrypted it might not even be a good idea run it on MAME with the Samsho5sp...

it works better if you change the banks at the second chip like this: cat prom.ak prom.ad prom.ac prom.af prom.ae prom.aj prom.ag prom.al > 272-p2.sp2 Thank you for figuring out how to convert the scramble. Unfortunately you swapped out a single bank pair on wrong positions. Now it works...

Guys, focus on de-scrambling the program roms first. old MAME release neocrypt.c, this code de-scramble the released samsho 5 Special, This ROM has a different scramble which is why it tosses a bank error when you try to boot it on mame while using the scramble from another game. void...

SSVSP has PCM2 with P-ROM scramble. The right way of going about with this (if the goal is run this as SSVSP on mame) is figure out this particular rom scramble first, unscramble it and finally scramble it with the correct scramble for the old SSVSP ROM.

You don't need to remove the wires to update when using a SD card. Only if you're updating the bootloader using the discovery board (because the testpoint pins are the same ones used by the discovery to connect to the STM32).

If you update the firmware you have to update the wiring too because the pin assignments changed. If the wires are connected wrong the CPS2 board may not reset during flash load or key programming. If the key wires are not set up correctly the encrypted roms also won't boot since the CPU won't...

Actually some games you can just change a byte somewhere on the rom to change the region. I suggest you instead write all brazilian roms because if you don't do that the memory test may fail.

Nothing is inserted. The USA/JPN/EURO ROMs have the code to access the card dispenser, they just don't use it. Change the ROM region to BRAZIL and the card dispenser function will become available.