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Important screensaver tip for Windows emulator authors

Last post by Nax « Sun Apr 19, 2020 6:49 am
Replies: 31
by koitsu » Sat Sep 21, 2013 4:34 pm
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31 Replies

158679 Views

Last post by Nax
Sun Apr 19, 2020 6:49 am

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beginner-friendly tutorials

Last post by losting « Tue Apr 29, 2025 2:14 am
Replies: 2
by losting » Tue Apr 29, 2025 12:28 am

2 Replies

106 Views

Last post by losting
Tue Apr 29, 2025 2:14 am
How to use nestest

Last post by Fiskbit « Sun Apr 27, 2025 3:21 pm
Replies: 3
by plearn » Fri Apr 25, 2025 8:11 am

3 Replies

419 Views

Last post by Fiskbit
Sun Apr 27, 2025 3:21 pm
Mesen - Emulator

Last post by 93143 « Wed Apr 23, 2025 8:28 pm
Replies: 886
by Sour » Wed Jan 25, 2023 8:08 pm
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886 Replies

505109 Views

Last post by 93143
Wed Apr 23, 2025 8:28 pm
Mega Man 2 unexpectedly restarts (MMC1)

Last post by dragonwarrior « Wed Apr 23, 2025 6:01 pm
Replies: 2
by dragonwarrior » Tue Apr 22, 2025 6:29 pm

2 Replies

257 Views

Last post by dragonwarrior
Wed Apr 23, 2025 6:01 pm
Writing a emulator as a fun project.

Last post by rev « Sat Apr 12, 2025 4:41 pm
Replies: 12
by rev » Thu Mar 06, 2025 5:28 am

12 Replies

5334 Views

Last post by rev
Sat Apr 12, 2025 4:41 pm
Interrupt Hijacking

Last post by stan423321 « Fri Apr 11, 2025 2:19 pm
Replies: 10
by plearn » Wed Apr 09, 2025 8:19 pm

10 Replies

1039 Views

Last post by stan423321
Fri Apr 11, 2025 2:19 pm
Does PC increment occur at end of cycle or beginning of next??

Last post by creaothceann « Thu Apr 10, 2025 11:03 pm
Replies: 1
by plearn » Thu Apr 10, 2025 6:44 pm

1 Replies

290 Views

Last post by creaothceann
Thu Apr 10, 2025 11:03 pm
Famicom Disk System emulation

Last post by TakuikaNinja « Tue Apr 08, 2025 4:39 pm
Replies: 21
by Near » Thu Apr 04, 2019 6:52 am
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21 Replies

23447 Views

Last post by TakuikaNinja
Tue Apr 08, 2025 4:39 pm
Ares - Emulator (NES core)

Last post by FitzRoy « Sat Apr 05, 2025 7:14 pm

by FitzRoy » Sat Apr 05, 2025 7:14 pm

0 Replies

296 Views

Last post by FitzRoy
Sat Apr 05, 2025 7:14 pm
PAL DMA behavior

Last post by creaothceann « Fri Apr 04, 2025 5:12 pm
Replies: 3
by Fiskbit » Thu Apr 03, 2025 12:23 pm

3 Replies

1045 Views

Last post by creaothceann
Fri Apr 04, 2025 5:12 pm
puNES Emulator

Last post by dink « Thu Apr 03, 2025 6:34 am
Replies: 773
by FHorse » Wed Sep 01, 2010 5:26 pm
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773 Replies

1376145 Views

Last post by dink
Thu Apr 03, 2025 6:34 am
Aligning CPU and PPU clock cycles and actions

Last post by merehap « Fri Mar 21, 2025 4:18 pm
Replies: 5
by UpDog » Sun Apr 23, 2023 12:11 pm

5 Replies

5567 Views

Last post by merehap
Fri Mar 21, 2025 4:18 pm
Various APU/Controller questions

Last post by Quietust « Fri Mar 14, 2025 10:22 am
Replies: 2
by WedNESday » Fri Mar 07, 2025 3:11 pm

2 Replies

587 Views

Last post by Quietust
Fri Mar 14, 2025 10:22 am
SMB skipping frames

Last post by Quietust « Tue Mar 11, 2025 7:26 pm
Replies: 3
by dragonwarrior » Tue Mar 11, 2025 4:12 pm

3 Replies

1840 Views

Last post by Quietust
Tue Mar 11, 2025 7:26 pm
Question about sprite evaluation.

Last post by dragonwarrior « Tue Mar 11, 2025 3:59 pm
Replies: 4
by yangsiyu » Mon Feb 10, 2025 12:16 am

4 Replies

1554 Views

Last post by dragonwarrior
Tue Mar 11, 2025 3:59 pm
OAM increment and sprite 0 test ROMs

Last post by Alyosha_TAS « Tue Mar 11, 2025 7:52 am
Replies: 6
by Fiskbit » Fri Nov 01, 2024 6:25 pm

6 Replies

3487 Views

Last post by Alyosha_TAS
Tue Mar 11, 2025 7:52 am
"Retro Imitator" now runs in web-browser

Last post by JRoatch « Fri Mar 07, 2025 8:37 pm
Replies: 2
by JRoatch » Wed Dec 04, 2024 1:15 pm

2 Replies

1864 Views

Last post by JRoatch
Fri Mar 07, 2025 8:37 pm
Various PPU questions

Last post by Fiskbit « Fri Mar 07, 2025 5:43 pm
Replies: 3
by WedNESday » Fri Mar 07, 2025 4:34 pm

3 Replies

665 Views

Last post by Fiskbit
Fri Mar 07, 2025 5:43 pm
Some interesting Famicom test results

Last post by WedNESday « Fri Mar 07, 2025 1:46 pm
Replies: 3
by WedNESday » Mon Mar 03, 2025 6:03 pm

3 Replies

1039 Views

Last post by WedNESday
Fri Mar 07, 2025 1:46 pm
Copy protection methods on FDS disks

Last post by TakuikaNinja « Thu Mar 06, 2025 6:26 am
Replies: 3
by NewRisingSun » Sat May 04, 2019 11:35 am

3 Replies

14326 Views

Last post by TakuikaNinja
Thu Mar 06, 2025 6:26 am
Lots of glitches with scanline.nes

Last post by Fiskbit « Wed Mar 05, 2025 12:11 pm
Replies: 20
by dragonwarrior » Sun Mar 02, 2025 10:56 am
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20 Replies

2474 Views

Last post by Fiskbit
Wed Mar 05, 2025 12:11 pm
Super Mario Bros 1 Menu not working

Last post by joncol « Sun Mar 02, 2025 6:45 am
Replies: 31
by miguelfsp » Sun Jan 27, 2013 8:17 am
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31 Replies

19291 Views

Last post by joncol
Sun Mar 02, 2025 6:45 am
Donkey Kong startup sequence

Last post by dragonwarrior « Sat Mar 01, 2025 8:51 am
Replies: 7
by dragonwarrior » Fri Feb 28, 2025 6:36 pm

7 Replies

1063 Views

Last post by dragonwarrior
Sat Mar 01, 2025 8:51 am
Some games actually enable bit 6 (PPU slave) of PPUCTRL ($2000). Why?

Last post by Quietust « Thu Feb 27, 2025 3:53 pm
Replies: 8
by WedNESday » Wed Feb 26, 2025 4:12 pm

8 Replies

3109 Views

Last post by Quietust
Thu Feb 27, 2025 3:53 pm
My background palette is off by 1 tile

Last post by JerryLong « Wed Feb 26, 2025 4:56 pm

by JerryLong » Wed Feb 26, 2025 4:56 pm

0 Replies

477 Views

Last post by JerryLong
Wed Feb 26, 2025 4:56 pm
Mesen PPU skips from dot 338 to dot 340. Why?

Last post by Fiskbit « Tue Feb 25, 2025 7:19 pm
Replies: 4
by hurry-civic-elixir » Tue Feb 25, 2025 2:32 pm

4 Replies

664 Views

Last post by Fiskbit
Tue Feb 25, 2025 7:19 pm
Count Errors Test ROM and some new DMC glitch info

Last post by Alyosha_TAS « Tue Feb 25, 2025 4:12 pm
Replies: 80
by Alyosha_TAS » Sat Dec 04, 2021 4:16 pm
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80 Replies

21141 Views

Last post by Alyosha_TAS
Tue Feb 25, 2025 4:12 pm
If CPU runs at the same cycle as PPU triggers NMI, does the CPU handle NMI or run instruction?

Last post by creaothceann « Mon Feb 24, 2025 5:25 pm
Replies: 3
by hurry-civic-elixir » Mon Feb 24, 2025 1:52 pm

3 Replies

901 Views

Last post by creaothceann
Mon Feb 24, 2025 5:25 pm
MMC3 Timing issues

Last post by Dwedit « Sat Feb 22, 2025 11:54 pm
Replies: 4
by Anes » Mon Jan 27, 2025 6:18 pm

4 Replies

2225 Views

Last post by Dwedit
Sat Feb 22, 2025 11:54 pm
Oeka Kids Tablet

Last post by Zorchenhimer « Sat Feb 22, 2025 12:24 pm
Replies: 8
by Disch » Tue Nov 14, 2006 12:00 pm

8 Replies

10415 Views

Last post by Zorchenhimer
Sat Feb 22, 2025 12:24 pm
PPU VRAM address outside of rendering

Last post by Alyosha_TAS « Sat Feb 22, 2025 5:46 am
Replies: 3
by Alyosha_TAS » Fri Feb 21, 2025 1:52 pm

3 Replies

634 Views

Last post by Alyosha_TAS
Sat Feb 22, 2025 5:46 am
Incorrect drawing sprite in my Emulator

Last post by TakuikaNinja « Fri Feb 21, 2025 3:30 pm
Replies: 5
by xverizex » Fri Feb 07, 2025 12:59 pm

5 Replies

1150 Views

Last post by TakuikaNinja
Fri Feb 21, 2025 3:30 pm
Help identify potential issues with scanline test?

Last post by hurry-civic-elixir « Thu Feb 20, 2025 8:40 pm
Replies: 2
by hurry-civic-elixir » Thu Feb 20, 2025 12:49 pm

2 Replies

690 Views

Last post by hurry-civic-elixir
Thu Feb 20, 2025 8:40 pm
a good crossplatorm video lib?

Last post by JRoatch « Thu Feb 20, 2025 6:02 pm
Replies: 4
by Anes » Tue Feb 18, 2025 11:24 am

4 Replies

1453 Views

Last post by JRoatch
Thu Feb 20, 2025 6:02 pm
Donkey Kong flame not moving

Last post by dragonwarrior « Mon Feb 17, 2025 2:30 pm
Replies: 2
by dragonwarrior » Sun Feb 16, 2025 9:52 pm

2 Replies

782 Views

Last post by dragonwarrior
Mon Feb 17, 2025 2:30 pm
Sprites glitchy rendering

Last post by dragonwarrior « Sat Feb 15, 2025 12:10 pm
Replies: 1
by dragonwarrior » Sat Feb 15, 2025 11:43 am

1 Replies

588 Views

Last post by dragonwarrior
Sat Feb 15, 2025 12:10 pm
NES Emulation - DK infinite Loop

Last post by dragonwarrior « Mon Feb 03, 2025 5:30 am
Replies: 5
by dragonwarrior » Sat Feb 01, 2025 3:32 pm

5 Replies

6609 Views

Last post by dragonwarrior
Mon Feb 03, 2025 5:30 am
Artifacts when switching games with the power on

Last post by kozoo « Fri Jan 31, 2025 5:06 pm
Replies: 8
by kozoo » Fri Jan 31, 2025 3:35 am

8 Replies

3634 Views

Last post by kozoo
Fri Jan 31, 2025 5:06 pm
sbc produce carry flag

Last post by xverizex « Thu Jan 30, 2025 1:44 pm
Replies: 3
by xverizex » Thu Jan 30, 2025 12:15 pm

3 Replies

2187 Views

Last post by xverizex
Thu Jan 30, 2025 1:44 pm
breakscore

Last post by org « Sun Jan 26, 2025 12:15 pm
Replies: 2
by org » Wed Jan 22, 2025 1:38 am

2 Replies

1473 Views

Last post by org
Sun Jan 26, 2025 12:15 pm
Badnes 1.20

Last post by Anes « Fri Jan 24, 2025 4:32 pm
Replies: 4
by Anes » Thu Aug 29, 2024 6:23 pm

4 Replies

4232 Views

Last post by Anes
Fri Jan 24, 2025 4:32 pm
APU Frame Counter write jitter is causing 3-nmi_and_irq.nes and 08-irq_timing.nes to fail

Last post by merehap « Fri Jan 17, 2025 11:13 pm
Replies: 4
by merehap » Sat Apr 20, 2024 9:47 pm

4 Replies

3900 Views

Last post by merehap
Fri Jan 17, 2025 11:13 pm
Book Chapter on Writing NES Emulator in Python

Last post by davecom « Fri Jan 10, 2025 6:08 pm

by davecom » Fri Jan 10, 2025 6:08 pm

0 Replies

2774 Views

Last post by davecom
Fri Jan 10, 2025 6:08 pm
(SOLVED) Question regarding the sprite 0 flag handling in SMB

Last post by Quietust « Wed Jan 08, 2025 12:10 pm
Replies: 3
by wahffle » Wed Jan 08, 2025 9:10 am

3 Replies

1527 Views

Last post by Quietust
Wed Jan 08, 2025 12:10 pm
Need help with my emulator.

Last post by CT5 « Fri Jan 03, 2025 6:45 pm
Replies: 2
by CT5 » Thu Dec 19, 2024 1:36 am

2 Replies

1905 Views

Last post by CT5
Fri Jan 03, 2025 6:45 pm
Issues while running demo_ntsc.nes

Last post by kotambail_hegde « Tue Dec 31, 2024 8:07 am
Replies: 4
by kotambail_hegde » Tue Dec 31, 2024 1:30 am

4 Replies

1645 Views

Last post by kotambail_hegde
Tue Dec 31, 2024 8:07 am
Issue seen in third area when running scanline.nes

Last post by kotambail_hegde « Mon Dec 30, 2024 7:55 am

by kotambail_hegde » Mon Dec 30, 2024 7:55 am

0 Replies

2585 Views

Last post by kotambail_hegde
Mon Dec 30, 2024 7:55 am
ZebraNES [C#]

Last post by Fiskbit « Thu Dec 26, 2024 4:08 pm
Replies: 2
by Monokeros » Thu Dec 26, 2024 3:33 pm

2 Replies

1535 Views

Last post by Fiskbit
Thu Dec 26, 2024 4:08 pm
Test ROMs for SHX/SXA and the other four "Unstable address high byte" instructions

Last post by Alyosha_TAS « Thu Dec 12, 2024 4:54 pm
Replies: 1
by lidnariq » Tue Dec 10, 2024 6:15 am

1 Replies

1651 Views

Last post by Alyosha_TAS
Thu Dec 12, 2024 4:54 pm
[Emu] Portable - Denver.

Last post by nIghtorius « Thu Dec 12, 2024 12:20 pm
Replies: 11
by nIghtorius » Tue Oct 10, 2023 4:32 pm

11 Replies

8888 Views

Last post by nIghtorius
Thu Dec 12, 2024 12:20 pm

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