Arcade mappers

[chmcarro]

Unsupport mapper error for the following ROMs:
VS. Excitebike
VS. The Goonies
VS. Ice Climbers
VS. Ladies Golf
PlayChoice-10 The Goonies

[hcs64]

I haven't thought much about the arcade hardware. Vs. System sounds like it has some significant differences from the NES, so this is probably out of scope. PlayChoice-10 sounds like it would be simpler, but there would be at least palette issues, DIP switches, coins, along with implementing a new mapper.

I don't have plans for either of these, but patches are welcome!

[hcs64]

Er, never mind, I hadn't read the PlayChoice-10 article carefully, there's a whole separate CPU and monitor involved. This is pretty unlikely to happen.

[chmcarro]

These are actually converted to NES roms playable on NES.

https://nes.goondocks.se/patches2.php

[hcs64]

I think they're still using mapper 99, though. Could you check? I'm not super enthusiastic about adding partial mapper 99 support for hacks.

[oRBIT2002]

Nice that you mentioned my website. :) I'm pretty sure I patched these to something else than mapper 99.

[hcs64]

The readme for Excitebike_(VS)_[NES-hack_v1.2].zip says "It's still mapper 99 and uses four-screen VRAM layout," I don't know about the others.

[chmcarro]

Ice climbers change log:
- Mapper 99 removed! Patched to use Mapper 1 (MMC1)

[hcs64]

Mapper 1 should work fine, thanks for the info. @chmcarro you may have an older version of the hack.

[chmcarro]

OK, interesting. I have the latest patch, but VS Ice climbers throws a different error, not the unsupported mapper error.

Bad opcode: $4b at PC=$c0a2, P=$27, A=$00, X=$00, Y=$00, S=$fd, cycle=216624

[hcs64]

I opened another bug for the VS Ice Climber issue.

[oRBIT2002]

Make sure you're patching the right ROM, patching the wrong/bad ROM can perhaps cause this. Does it work in Mesen for example?

[chmcarro]

Name: VS. Ice Climber (VS) NES Patched v2.0b [FIX] Morgan Johansson.nes
Size: 81936 bytes (80 KiB)
CRC32: D732018E

Runs great in Mesen v0.9.9

[chmcarro]

@oRBIT2002 please disregard the Ice Climbers issue. It's a non-issue. I was mistakenly using your previous patch from 2013 (v2.0b). You have a patch from 2017 v2.1 that works great on this emulator. Sorry for the trouble.

I suppose the others use the incompatible mapper 99?

[hcs64]

I'll leave this open, it may be feasible to add mapper 99 for hacks like this, but skip supporting the bits in the header that say the rest of the VS Unisystem or PlayChoice-10 is present.