Search found 768 matches

by Great Hierophant
Fri Jan 25, 2019 11:04 am
Forum: GBDev
Topic: Vaus-like controller planned for Alleyway?
Replies: 8
Views: 8597

Re: Vaus-like controller planned for Alleyway?

I recall that the Nt Mini's Game Boy core has a very similar bug to what you describe for Alleyway, it is probably the same bug but it has been a long time since I last tried it.
by Great Hierophant
Wed Jan 16, 2019 11:46 am
Forum: NESemdev
Topic: NES 2.0 Additions Proposal
Replies: 224
Views: 137387

Re: NES 2.0 Additions Proposal

I have taken very rough look at most of the games that hvcmic identified as mic-using candidates. "Code exists and is definitely called" means that I can set a breakpoint at the code that reads and checks the microphone bit, and will eventually find it triggered. Usually, that sets a memory locatio...
by Great Hierophant
Wed Jan 09, 2019 9:44 am
Forum: NES Hardware and Flash Equipment
Topic: HVC-SZROM
Replies: 11
Views: 5851

Re: HVC-SZROM

By Mappers, we are missing board shots from the the licensed Famicom releases : Mapper 0 - 9 Mapper 1 - 52 Mapper 2 - 18 Mapper 3 - 5 Mapper 4 - 66 Mapper 9 - 1 Mapper 18 - 1 Mapper 23 - 1 Mapper 32 - 1 Mapper 48 - 3 Mapper 66 - 1 Mapper 68 - 2 Mapper 70 - 2 Mapper 80 - 1 Mapper 92 - 1 Mapper 96 - 1...
by Great Hierophant
Wed Jan 09, 2019 9:01 am
Forum: NES Hardware and Flash Equipment
Topic: HVC-SZROM
Replies: 11
Views: 5851

Re: HVC-SZROM

Sorry, I miscounted. There are eight with highlights on my list where I could not find the board shot on NES Cart DB or elsewhere and have been indicated to use battery backed SRAM : Chaos World Cocoron Cosmo Police Galivan Famicom Shougi: Ryuuousen Jangou Kabushiki Doujou Meiji Ishin Nipponichi no ...
by Great Hierophant
Wed Jan 09, 2019 8:17 am
Forum: NES Hardware and Flash Equipment
Topic: HVC-SZROM
Replies: 11
Views: 5851

Re: HVC-SZROM

There are 51 Licensed Famicom games which are designated to use MMC1 and for which we do not have board shots, and five of them are designated to use SRAM. Until that they are all definitively known, we may still conceivably encounter obscure variants like SZROM. Could there be an SDROM, an SPROM, S...
by Great Hierophant
Tue Jan 08, 2019 11:23 pm
Forum: NESemdev
Topic: Taito TC0690 IRQs
Replies: 13
Views: 13466

Re: Taito TC0690 IRQs

A source whom I have no reason to doubt indicates that Famicom Jetsons does not show glitches on the title screen : https://www.famicomworld.com/forum/inde ... #msg183044 So I guess that it's behavior is a variant compared to Flintstones.
by Great Hierophant
Tue Jan 08, 2019 12:50 pm
Forum: NESemdev
Topic: List of NES and Famicom Cartridge Hardware
Replies: 11
Views: 14868

Re: List of NES and Famicom Cartridge Hardware

Updated with a tiny change for A Ressha de Ikou which uses the SOROM-like SZROM and to indicate that I have seen board shots of that game and Famicom Flintstones (highlighting removed).
by Great Hierophant
Sat Jan 05, 2019 3:27 pm
Forum: NESemdev
Topic: Nintendulator 0.980
Replies: 16
Views: 13400

Re: Nintendulator 0.980

Battletoads Level 2 does not freeze in Nintendulator-NRS.

However, common to both, The Jetsons, Cogswell Caper (J) has a shaky status bar and garbage on the Title screen.
by Great Hierophant
Sun Dec 23, 2018 6:47 pm
Forum: General Stuff
Topic: game boy kiosk picture generation
Replies: 8
Views: 4209

Re: game boy kiosk picture generation

I assume they are using monochrome CRTs for those kiosks, but are those CRTs black and white? In other words, is all the "color" coming from that pane of yellow plastic in front of the screen?
by Great Hierophant
Fri Dec 21, 2018 10:53 pm
Forum: NESemdev
Topic: Battle Fleet, Famista '90, Kaijuu Monogatari, Mindseeker
Replies: 20
Views: 21925

Re: Battle Fleet, Famista '90, Kaijuu Monogatari, Mindseeker

Maybe the battery bit should be set for SRAM and not be set for EEPROM. There is a field for "battery backed" WRAM in the NES 2.0 header and a field for the non-battery backed WRAM. Right now we distinguish between EEPROM and SRAM by size, SRAM generally being 1K or larger and EEPROM being smaller t...
by Great Hierophant
Mon Dec 10, 2018 7:52 am
Forum: NESdev
Topic: Messed Up Modulated Sounds on Balloon Fight and Clu-Clu Land
Replies: 3
Views: 3247

Re: Messed Up Modulated Sounds on Balloon Fight and Clu-Clu

I remember reading something online that stated that Vs. Balloon Fight and home console Balloon Fight were not developed by exactly the same team. Satoru Iwata did the programming for the home version, and if I remember rightly, the programmers for the Vs. Balloon Fight version had to come to him fo...
by Great Hierophant
Fri Dec 07, 2018 10:06 am
Forum: NESemdev
Topic: NES 2.0 Additions Proposal
Replies: 224
Views: 137387

Re: NES 2.0 Additions Proposal

For the controller byte, would it be a good idea to use the high bit to distinguish between games where the controller is required versus games where it is optional? That still gives you 128 possibilities for controller assignments. The idea is to allow emulators to notify the player of an option an...
by Great Hierophant
Fri Dec 07, 2018 7:11 am
Forum: Reproduction
Topic: FDS RAM Adapter - NES Version
Replies: 30
Views: 35234

Re: FDS RAM Adapter - NES Version

I've been thinking about this and finally have a little bit to show. https://twitter.com/muramasa_ninja/status/1069024814709395456 Too modest! This is great work and rather gratifying for me as it goes a long way to confirming my original theory of how a(n) NES Disk System would have worked. I see ...
by Great Hierophant
Thu Dec 06, 2018 5:20 pm
Forum: NESemdev
Topic: NES 2.0 Additions Proposal
Replies: 224
Views: 137387

Re: NES 2.0 Additions Proposal

For 144 KiB, you just denote 9 16 KiB banks. The exponent-multiplier system is only used for sizes that could not be expressed before. I was trying to get the number using the exponent-multiplier system, but it only went up to seven. I forgot that original system is 16K * 2^(Byte 4). I am pleased w...
by Great Hierophant
Thu Dec 06, 2018 3:09 pm
Forum: NESemdev
Topic: NES 2.0 Additions Proposal
Replies: 224
Views: 137387

Re: NES 2.0 Additions Proposal

Regarding the exponent * multiplier way of determining ROM size, I think this is how it works : Galaxian 8KB PRG-ROM = 2^13 * 1 = #00110100 = $34 Here are some non-power of 2 PRG-ROM sizes I know of that can be represented by this system : Vs. Tetris 24 = 2^13 * 3 Vs. Gumshoe 40 = 2^13 * 5 Vs. Raid ...