SpritesMind.Net

This reminds me I need to post a thread "What I Learned from Porting YM2612 and SN76489 to JavaScript" soon ;) For some of the practical aspects of sound playback, the following should be useful: Remember that Total Level in YM2612 operators and Attenuation in PSG channels is the inverse of "volume;...

Also, my VGM2Pre program can extract YM2612 FM presets from VGMs to Echo Instrument Format and is open-source. I want more people to use the EIF conversion it offers and let me know if there's something I need to fix about it, too. http://www.luxatom.com/fk/vgm2pre-64.7z (prebuilt Win64 binary) http...

I've had some success using the phoenix GUI toolkit wrapper by byuu, the author of bsnes/higan. It uses one API and essentially ifdefs to the native GUI toolkit of the current OS (supports Win32, OS X Cocoa, GTK, Qt). byuu himself runs FreeBSD 10 and expands from there, so you know that it'll work o...

Try the Sonic Physics Guide at Sonic Retro. I haven't looked at it in a couple of months, but it might have info on scrolling planes.

ValleyBell might have some first-hand info as well, so maybe look for him too?

Fixed a bunch of fundamental porting errors. The sound generated is now essentially identical to the C version of Genesis Plus GX

I need help optimizing it and for the VGM player fixing buffering issues. Any volunteers?

I've finally successfully implemented gzcompressed VGM handling in the VGM player using zlib.js , officially bringing the player's capability to VGM v1.50 spec. The "public beta" PSG.js GitHub repo YM2413.js GitHub repo YM2612.js GitHub repo Updated VGM.js repo coming soon! SN76489, YM2413, and YM26...

Update: IT NOW WORKS!!! ^____^ The problem was porting YM2413Write. It seems writing to a register was originally done in two separate steps: latch the register's address OR set the chip's status, THEN write the value to the register. Status wasn't being set to 1 until after certain writes because I...

@Gigasoft - the VGM file parsing doesn't show problems, and the actual sample generation is all in the chip's code. I'm looking at calculation right now to make sure I didn't mistype something. @Nemesis - (I think you meant YM2413 ;) ) I really wish I could simplify the thing at this stage (especial...

Ok, so I know the YM2413 isn't strictly Genesis, being a Japanese SMS-only chip for the most part. I asked this question on SMS Power but so far have gotten no response, probably due to a huge likelihood that the intersection of devs with any YM2413 knowledge, devs with C/C++ knowledge, and devs wit...

Update: did a visual refresh a couple months back, and re-enabled YM2612 just now because IT FINALLY WORKS!!!!

IT FINALLY WORKS!!!!! ^________________^

Get it from the GitHub.

The YM2612 registers $A4 through $A6 used for setting the MSB of a channel's FNUM currently store (at least in MAME/Genesis Plus GX-based implementations) in (YM2612_instance).OPN.ST.fn_h instead of in a per-channel fn_h . On actual hardware, if one channel's MSB is latched but another channel latch...

I...I think I want one now

Stef wrote:i never realized that stricmp was not standard method

For some weird reason, it's stricmp in some places and strcasecmp in others :/

Mask of Destiny wrote:getting a 64-bit MinGW setup is a pain

Get the one the RetroArch team prepackaged if that's the case: http://themaister.net/retroarch-dl/MinG ... pthread.7z

Run the included Git Bash.vbs to open a shell.