RockNES - NES emulator for Windows [5.54] 09/23/2017

Discuss emulation of the Nintendo Entertainment System and Famicom.

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Zepper
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RockNES - NES emulator for Windows [5.54] 09/23/2017

Post by Zepper »

Official topic for RockNES releases. ^_^;;
Website: http://rocknes.web.fc2.com/

Latest version is 5.54 September 23rd 2017.

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 What's new for version 5.54 (09/23/2017)
 ----------------------------------------
 - Improved Famicom Disk System PPU IRQ timing (thanks Sour).
 - Fixed "Skip Disk System license screen" option, working ok.
 - Fixed scanlines in NSF mode (while playing a tune & drawing circles).
 - Fixed version number in the file properties.
 - Minor fixes and improvements.
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Last edited by Zepper on Sat Sep 23, 2017 12:38 pm, edited 55 times in total.
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Re: RockNES - A NES emulator for Windows [5.20]

Post by Eugene.S »

1) Final version need these external libraries to run (again):
- libgcc_s_dw2-1.dll
- zlib1.dll
Old betas have same problems, but you've fixed it on RC4.
2) "misc -> videos resolution -> fullscreen options" not implemented yet? (this window hangs)
3) set vertical retrace GUI bug since RC4.
4) MMC3 hell again. Bucky O'Hare for example:

After demo-play, press start.
title screen glitches + lifebar shakes + text color wrong (i can show where is)
Image
On 5.20 RC4 this game work correct.

Kick Master, Monster in my Pocket crashes emulator due to unofficial opcode, first game also have graphical glitches
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Re: RockNES - A NES emulator for Windows [5.20]

Post by Zepper »

Thank you. Fixing them... 8-) 8-) 8-) 8-)
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Re: RockNES - A NES emulator for Windows [5.20]

Post by Zepper »

I don't know what's wrong with Bucky O'Hare... just that screen (mirroring error?) after the 1st gameplay demo.
With Kick Master, most unexpected. I traced the CPU code and I don't know either.

Yup, I fixed a couple of mistakes in the MMC3 IRQ - Mickey games (Letterland/Numberland) are working again, plus a problem with the IRQ logic in the PPU registers.
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Re: RockNES - A NES emulator for Windows [5.20]

Post by Eugene.S »

I don't know what's wrong with Bucky O'Hare... just that screen (mirroring error?) after the 1st gameplay demo.
1) Lifebar shakes
2) Press (and hold) "B" on intro to make fast text scrolling and you'll see a bug:
Image
blue text instead white. If you don't hold B, bug not appear. Strange behaviour.
3) ?-about (c) 1998-2015 need to update
4) all stretched blitters (2x, 4x, 4.5x) does some kind of software interpolation:
to stretch the image into 640 pixels, the 3rd pixel was being repeated (pattern AABBCCCAABBCCC..., A=1st, B=2nd, C=3rd pixel). Now, it's interpolated.
except 3x, which looks raw. I think interpolation need to be optionally
viewtopic.php?f=3&t=10108&start=15#p124260
because old raw stretch method that used in 5.061 to "2x", and used only for "3x" in 5.20, looks better on some machines.
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Re: RockNES - A NES emulator for Windows [5.20]

Post by Zepper »

@Eugene.S:
1. I don't know what's up with Kick Master or Bucky O'Hare. -_-;; Still looking for problems...
2. Fixed the color style selection in the GUI, the copyright year, disabled item "view palette ram" and the vertical retrace flag.
3. I couldn't reproduce the problem with misc->palette->set default palette, as you said to be black screen...??
4. About the pixel interpolation, well... I'll see what can be done.

Anything else?

EDIT: oh sh*t! Big thanks to ME for saving the sources of 5.20 RC4. ^_^;; A very obscure bug introduced in the MMC3 IRQ logic. HAHAHA, it's fixed and working like a charm!
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Re: RockNES - A NES emulator for Windows [5.20]

Post by Zepper »

New version.
There's more things to do... but I'm taking a short break. ^_^;;
Thanks Eugene.S for the feedback. Just wait for more changes, ok?
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Re: RockNES - A NES emulator for Windows [5.21]

Post by Zepper »

Fixed a few things, but I did not change the version number. Keep an eye in the 1st post. ^_^;;
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Re: RockNES - A NES emulator for Windows [5.22]

Post by Zepper »

up! :)

I'm aware of the MinGW dependancy, but it comes from zlib1.dll which I don't know how to remove such dependancy.

Fixed. ^_^;;
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Re: RockNES - A NES emulator for Windows [5.23]

Post by Zepper »

Fixed PPU IRQs. They were broken. :oops: :oops: :oops:
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Re: RockNES - A NES emulator for Windows [5.23]

Post by Eugene.S »

5.23 is good release, many mmc3 glitches are fixed. Sound volume is really better.

Games that have DPCM-channel sounds distorted on lastest version
(Zen Intergalactic Ninja, Bucky O'Hare, Journey to Silius) if option "use unsigned samples" = 1.
Sound stumbles very often if "Vertical Retrace" or "Triple Buffering" are enabled
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Re: RockNES - A NES emulator for Windows [5.23]

Post by Zepper »

Eugene.S wrote:5.23 is good release, many mmc3 glitches are fixed. Sound volume is really better.

Games that have DPCM-channel sounds distorted on lastest version
(Zen Intergalactic Ninja, Bucky O'Hare, Journey to Silius) if option "use unsigned samples" = 1.
Support for unsigned samples must be improved.
Regarding this:
Sound stumbles very often if "Vertical Retrace" or "Triple Buffering" are enabled
Does it occur with the signed waves (default)?
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Re: RockNES - A NES emulator for Windows [5.23]

Post by Eugene.S »

Does it occur with the signed waves?
Sorry for false alarm. It occur only on old laptop cpu (with signed / unsigned samples and even with games lacks DPCM). But on desktop core i7-2600k it works good.
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Re: RockNES - A NES emulator for Windows [5.24]

Post by Zepper »

Up! Version 5.24 fixes the unsigned samples, plus a few things.
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Re: RockNES - A NES emulator for Windows [5.25]

Post by Zepper »

New version available. :) Major news is the APU sound output remixer rewritten.
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