Search found 1465 matches

by NewRisingSun
Sun Feb 05, 2023 4:10 pm
Forum: NESemdev
Topic: NES 2.0 XML Database
Replies: 107
Views: 84050

Re: NES 2.0 XML Database

Had you checked instead of recalling, you would have discovered that it does have the Mirroring write, at PC $F008.
by NewRisingSun
Sun Feb 05, 2023 12:26 pm
Forum: NESemdev
Topic: NES 2.0 XML Database
Replies: 107
Views: 84050

Re: NES 2.0 XML Database

The Tengen games have mapper 4 compatibility code in them, in particular the write to the mirroring register A000. So both variants are technically correct, though it's probably better to have the bootlegs use the same designation as the original games whenever possible.
by NewRisingSun
Tue Jan 31, 2023 9:31 am
Forum: NES Music
Topic: VT02 sound
Replies: 4
Views: 209

Re: VT02 sound

The implicit answer is "No, there is no explicit VT02 support in any current tracker, but you may be able to obtain similar capabilities from expansion sound chips, if that is enough for you." As for non-linear channel mixing, the actual mixing formula of the VT02+ on-a-chip systems is com...
by NewRisingSun
Mon Jan 23, 2023 3:27 pm
Forum: NESemdev
Topic: NES 2.0 XML Database
Replies: 107
Views: 84050

Re: NES 2.0 XML Database

The 6693BD20 PRG ROM has been moved into the Bad Dumps category, because it had a few bytes in a long FF section replaced with garbage.
by NewRisingSun
Mon Jan 23, 2023 1:56 am
Forum: NESemdev
Topic: NES 2.0 XML Database
Replies: 107
Views: 84050

Re: NES 2.0 XML Database

The directory names in the XML comments are subjective commentary and not part of the database content proper. ;)

That being said, so far there has been no evidence of the reproduction ROM content being modified in any way.
by NewRisingSun
Wed Jan 18, 2023 12:53 pm
Forum: NES Music
Topic: More NSF Requests
Replies: 3212
Views: 1482869

Re: More NSF Requests

NSF files of Blazing Rangers, a.k.a. Honoo no Rangerman.
Blazing Rangers.7z
(4.89 KiB) Downloaded 24 times
by NewRisingSun
Wed Jan 18, 2023 8:25 am
Forum: NES Hardware and Flash Equipment
Topic: Waixing mapper 249
Replies: 8
Views: 709

Re: Waixing mapper 249

I have added mapper 4 submapper 5 per my indicated intention. For nes20db, this deprecates the scrambled mapper 249 dumps, and makes the unscrambeld dumps, denoted as mapper 4 submapper 5, the "good" dumps, allowing them to run in emulators that do not emulate the address scrambling at all...
by NewRisingSun
Tue Jan 10, 2023 3:18 pm
Forum: NESemdev
Topic: Error in F-1 Race (1984)
Replies: 99
Views: 58298

Re: Error in F-1 Race (1984)

TakuikaNinja wrote: Tue Jan 10, 2023 2:07 pm I never thought to check for revisions since the NESdev wiki page on game bugs didn't mention any for this game.
I have corrected that omission on the wiki.
by NewRisingSun
Tue Jan 10, 2023 12:56 pm
Forum: NESemdev
Topic: Error in F-1 Race (1984)
Replies: 99
Views: 58298

Re: Error in F-1 Race (1984)

That is nice, though a bit superfluous, as an official PRG1 revision of the game has since been found and included in No-Intro that no longer has this requirement.

(Edit: spelling error corrected)
by NewRisingSun
Sun Jan 01, 2023 3:04 pm
Forum: NES Hardware and Flash Equipment
Topic: Waixing mapper 249
Replies: 8
Views: 709

Re: Waixing mapper 249

All right. So the only remaining question is: is it even worth allocating a submapper (5 would be the next) for mapper 4 just to denote the 43-319 PCB that powers on with scrambling enabled, even as the games immediately write to disable it?
by NewRisingSun
Sun Jan 01, 2023 8:01 am
Forum: NES Hardware and Flash Equipment
Topic: Waixing mapper 249
Replies: 8
Views: 709

Re: Waixing mapper 249

And here are the complete PRG and CHR scrambling patterns for all eight $5000 values. As before, I assume that $5000=$02 is the unscrambled bank order. Assume a different value as being the unscrambled bank order only requires resorting the rows in each table. For PRG banks, only $5000.0-1 are consi...
by NewRisingSun
Sat Dec 31, 2022 11:31 am
Forum: NES Hardware and Flash Equipment
Topic: Waixing mapper 249
Replies: 8
Views: 709

Re: Waixing mapper 249

Since lidnariq indicated that D2 is also connected to the mystery blob, I checked and found out that there are eight, not just four, scrambling patterns, all selected via $5000. Only one seems to have ever been used by any known game though.
by NewRisingSun
Fri Dec 30, 2022 6:27 am
Forum: NES Hardware and Flash Equipment
Topic: Waixing mapper 249
Replies: 8
Views: 709

Re: Waixing mapper 249

Yes, I can look at FCEUX source code myself. I think I would want to do the following: preserve mapper 249 ROM files as legacy dumps, but consider the 5000=02 bank order as the true unscrambled bank order, for the reasons stated above, and define the "good" dumps as mapper 4 with a new sub...
by NewRisingSun
Thu Dec 29, 2022 6:29 am
Forum: NES Hardware and Flash Equipment
Topic: Waixing mapper 249
Replies: 8
Views: 709

Waixing mapper 249

We finally obtained a circuit board of Mapper 249 , used on original Waixing games from 1996. It is basically TKROM/TLROM but with an additional register at $5000 taking values from 0-3 that select one of three patterns in which the PRG and CHR ROM address lines are scrambled. I am focusing only on ...
by NewRisingSun
Wed Dec 28, 2022 11:30 am
Forum: NES Hardware and Flash Equipment
Topic: Dumping a multigames 1050 in 1 NES Cartridge with INLretro
Replies: 46
Views: 2779

Re: Dumping a multigame 1000 in 1 NES Cartridge with INLretro

Yes, you have the 72-pin version, I have the 60-pin version.