Search found 780 matches

by Great Hierophant
Wed Aug 02, 2023 10:25 am
Forum: SNESdev
Topic: Mystery Weird Japanese SA-1 Game
Replies: 3
Views: 1683

Re: Mystery Weird Japanese SA-1 Game

Pachi-Slot Monogatari: PAL Kougyou Special is probably the game you're thinking of. If I remember right, the header does correctly indicate that the SA-1 is present but the game never actually does anything with it. Yes, I think this was it. Thank you! :beer: This game seems unique for the Super Fa...
by Great Hierophant
Sun Jul 30, 2023 10:38 am
Forum: SNESdev
Topic: Mystery Weird Japanese SA-1 Game
Replies: 3
Views: 1683

Mystery Weird Japanese SA-1 Game

Several years ago I remember hearing about a Japanese Super Famicom game that was discovered to contain an SA-1 chip inside it but it makes absolutely no use of the performance enhancing SA-1 features. I believe the game only used the SA-1 as a lockout chip and the internal header may not have indic...
by Great Hierophant
Sun Dec 05, 2021 8:10 pm
Forum: Other Retro Dev
Topic: Apple II dev
Replies: 3
Views: 872

Re: Apple II dev

Apple2Infinitum Slack is a relatively lively place.
by Great Hierophant
Mon Jun 21, 2021 11:58 am
Forum: NESemdev
Topic: Action 52 - does not work on **some** PPUs
Replies: 2
Views: 1546

Re: Action 52 - does not work on **some** PPUs

I tested Action 52, both the no-rev and the rev. A ROM (as no-intro identifies them), and every game I tried with the no-rev (CRC32=41EF44F6) crashed after the player select screen as Krzysiobal described in my Famicom with rev. E CPU and PPUs. The rev. A ROM (CRC32=0586448F) had no such issues in t...
by Great Hierophant
Tue Jun 15, 2021 11:36 pm
Forum: NES Hardware and Flash Equipment
Topic: Famicom AV Mod Situation in 2019
Replies: 148
Views: 150647

Re: Famicom AV Mod Situation in 2019

In a perfect world I imagine a cheaper NESRGB like FPGA board which only generates composite video and s-video but does it in the way the PPU originally did it or could have done it and replaces the Power Board so the Eject functionality of the Famicom is not lost. No custom palettes, no dejitter, j...
by Great Hierophant
Tue Jun 15, 2021 5:28 pm
Forum: NES Hardware and Flash Equipment
Topic: Famicom AV Mod Situation in 2019
Replies: 148
Views: 150647

Re: Famicom AV Mod Situation in 2019

I can salvage another 10uF tantalum from one of my IBM PC video cards, as IBM loved to use tantalums in the early days. That breaks my heart to something like that die for this. You should sell the video card on eBay and use the money to buy brand new tantalums. I tried it and it made no difference...
by Great Hierophant
Mon Jun 14, 2021 8:46 am
Forum: NES Hardware and Flash Equipment
Topic: Famicom AV Mod Situation in 2019
Replies: 148
Views: 150647

Re: Famicom AV Mod Situation in 2019

Glad to hear you have 10uF, that's perfect. Do you have more? You can try putting more than 1 in parallel, and additionally to pin 40. The tantalum cap was basically the only thing we found that gave any improvement to the jailbars. It is definitely worth tweaking with it. Pin 20 to pin 22 (the way...
by Great Hierophant
Sun Jun 13, 2021 8:54 pm
Forum: NES Hardware and Flash Equipment
Topic: Famicom AV Mod Situation in 2019
Replies: 148
Views: 150647

Re: Famicom AV Mod Situation in 2019

Sorry it didn't help but worth a try I guess. I had not intended for you to move your tantalum but apparently it didn't make a difference. What value is your tantalum (uF)? My experiments showed that it should be in the range 4.7uF to 47uF, and not larger or smaller than that range. 10uF is the val...
by Great Hierophant
Sun Jun 13, 2021 5:13 pm
Forum: NES Hardware and Flash Equipment
Topic: Famicom AV Mod Situation in 2019
Replies: 148
Views: 150647

Re: Famicom AV Mod Situation in 2019

One thing I notice is that you have a rather long wire between the PPU and the cathouse board. As an experiment, you might try removing the cathouse board and using 3 very short wires directly to the PPU pins, and connecting the 5V/GND wires directly to the tantalum capacitor. Not sure it will help...
by Great Hierophant
Sun Jun 13, 2021 1:53 pm
Forum: NES Hardware and Flash Equipment
Topic: Famicom AV Mod Situation in 2019
Replies: 148
Views: 150647

Re: Famicom AV Mod Situation in 2019

I was unsure whether there would be any difference between a long cable before the amplifier or after the amplifier. I figured that the video signal has to travel that distance at some point. I will move the CatHouse games board as close to the CPU as possible and see if there is any improvement.
by Great Hierophant
Sun Jun 13, 2021 10:53 am
Forum: NES Hardware and Flash Equipment
Topic: Famicom AV Mod Situation in 2019
Replies: 148
Views: 150647

Re: Famicom AV Mod Situation in 2019

I did my own jailbar removal mod, but I feel like I did not do something quite right. My Famicom is an HVC-CPU-07 with a rev. E PPU and CPU. I used this board from CatHouse Games https://console5.com/store/nes-toploader-nes-101-and-famicom-composite-av-mod-kit.html because it replicated almost all o...
by Great Hierophant
Mon Sep 07, 2020 10:03 am
Forum: NESemdev
Topic: NES 2.0 XML Database
Replies: 107
Views: 94415

Re: NES 2.0 XML Database

What's the benefits of sum16 ? That is the method Nintendo used to verify the file integrity of ROMs at its factory and included the sum16 values in its spreadsheet inventorying the Famicom and NES ROMs going through its assembly line. This spreadsheet does not include Japanese games from third par...
by Great Hierophant
Sat Aug 08, 2020 7:52 am
Forum: General Stuff
Topic: Nintendo "Gigaleak"
Replies: 65
Views: 59178

Re: Nintendo "Gigaleak"

These days Nintendo will patch out things like strobing effects on the Switch emulations of these games on the fly, they no longer modify ROMs or FDS/QD images, which is a good thing. Of course, try telling those know-nothings at No-intro that.
by Great Hierophant
Sun Jul 26, 2020 7:35 am
Forum: Homebrew Projects
Topic: Battlekid localized for japanese market
Replies: 34
Views: 28735

Re: Battlekid localized for japanese market

At least they have included through holes so the end user can "fix" the issue with their own flash chip or EEPROM.
by Great Hierophant
Tue Jun 09, 2020 7:50 am
Forum: NESemdev
Topic: NES 2.0 XML Database
Replies: 107
Views: 94415

Re: NES 2.0 XML Database

Lodan wrote: Tue Jun 09, 2020 6:22 am It's there any tool or script to add\updated headers to nes roms in batch mode based in this xml file?
Get the python script linked here and you should be satisfied :
http://forums.nesdev.com/viewtopic.php? ... 40#p248905