Note to Chroniclers/Hackers about codes

[rimsky82]

I just spent some time editing the PC Engine/TurboGrafx 16 codes to the proper format. I know some emulator likes the values in decimal, but I think that's dumb, so to keep in line with the rest of the site, they should be entered in the database as a byte (2-digit hexidecimal format). So the format for this system is AAAAAA:VV.

Also in regards to this system, I noticed a lot of the ram codes are in the range of 0xF80000. The TG16's memory isn't even big enough to hold this range. I noticed the address for Visitntx's Bonk code for health (F82DB4), according to MESS for the TG16, actually resides at 102DB4. I'm not sure if the RAM range is different for the PCE, or the SuperGrafx, or some other NEC system that runs these HUCards, but it kind of makes life difficult when trying to do IPS patches for ROM hacks, and exporting for different emulators and such. We should figure this out.

Anyhoooo, let's make sure when we're adding codes that we're keeping everything uniform. There is a table on the add code page that has the formats for the various systems, so pay attention to that.

[lee4]

I notice some discrepancies start memory mapping

magicengine's address F80000 would be on mess 100000 and artmoney use 1F0000
http://mamedev.org/source/src/mess/drivers/pce.c.html

I'm guessing magicengine is doing reverse hex

[Helder]

If only MESS was more compatible with certain systems and everyone used it there wouldn't be any problems but we should all keep an eye open for this system since other hackers use other emulators.

[iddqd]

http://www.geocities.co.jp/SiliconVa...l#rom_emulator
Physical address is 1F0000, and logical address is F80000.
Whether to alter base address in ArtMoney from 1F0000 to F80000?
Is there a code input devices for PC-Engine?

[lee4]

http://www.geocities.co.jp/SiliconVa...l#rom_emulator
Physical address is 1F0000, and logical address is F80000.
Whether to alter base address in ArtMoney from 1F0000 to F80000?
Is there a code input devices for PC-Engine?

probably best change to MESS base address
seeming rimsky82 favors MESS emulator the most

[ReyVGM]

Well, I don't use MESS, I don't make codes for MESS either and since I'm pretty much the only one that hacks Turbografx CD, then they will stay on my format of choice!

*stomps foot, cracks whip*

Just kidding, about the foot and whip thing... anyway, how about just adding a convertor or something?

[rimsky82]

I'm not conforming to MESS because I'm trying to be difficult. It's because of their dedication to low level emulation and coding things in a way that it documents the hardware and is as accurate as possible.

Post in any way you want, but as far as how the system will see and interpret your codes when they are exported, it will be in the correct format for the emulator. That's the goal, anyway. But the system has to be able to parse the address and value to do so, which is why I'm being picky about how they are added.

[rimsky82]

http://www.geocities.co.jp/SiliconVa...l#rom_emulator
Physical address is 1F0000, and logical address is F80000.

... which one should be edited? I think they mirror either way.