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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

160532 Views

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

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Proposal regarding mapper 30 submappers and NES 2.0 battery flag usage for self-flashing cartridges

Last post by NewRisingSun « Wed Jun 11, 2025 4:48 am

by NewRisingSun » Wed Jun 11, 2025 4:48 am

0 Replies

110 Views

Last post by NewRisingSun
Wed Jun 11, 2025 4:48 am
Mesen - Emulator

Last post by yeerk16 « Sun Jun 08, 2025 3:26 pm
Replies: 946
by Sour » Wed Jan 25, 2023 8:08 pm
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946 Replies

529999 Views

Last post by yeerk16
Sun Jun 08, 2025 3:26 pm
Introducing my emulator - nesm

Last post by khaos « Sat May 31, 2025 6:28 am

by khaos » Sat May 31, 2025 6:28 am

0 Replies

95 Views

Last post by khaos
Sat May 31, 2025 6:28 am
MMC3 big CHR RAM test

Last post by tepples « Thu May 29, 2025 11:09 am
Replies: 7
by tepples » Thu Feb 25, 2016 9:34 pm

7 Replies

11678 Views

Last post by tepples
Thu May 29, 2025 11:09 am
Idea of measuring opcode sizes

Last post by JRoatch « Thu May 29, 2025 10:34 am

by JRoatch » Thu May 29, 2025 10:34 am

0 Replies

65 Views

Last post by JRoatch
Thu May 29, 2025 10:34 am
MMC1 SUROM Emulation

Last post by creaothceann « Sat May 24, 2025 8:41 am
Replies: 5
by Tae » Fri May 23, 2025 2:45 pm

5 Replies

158 Views

Last post by creaothceann
Sat May 24, 2025 8:41 am
HDL Components?

Last post by segaloco « Tue May 20, 2025 12:38 am

by segaloco » Tue May 20, 2025 12:38 am

0 Replies

94 Views

Last post by segaloco
Tue May 20, 2025 12:38 am
Famicom Disk System emulation

Last post by TakuikaNinja « Fri May 16, 2025 6:51 am
Replies: 22
by Near » Thu Apr 04, 2019 6:52 am
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22 Replies

24132 Views

Last post by TakuikaNinja
Fri May 16, 2025 6:51 am
Writing a emulator as a fun project.

Last post by rev « Sun May 04, 2025 7:32 pm
Replies: 13
by rev » Thu Mar 06, 2025 5:28 am

13 Replies

6198 Views

Last post by rev
Sun May 04, 2025 7:32 pm
Mega Man 2 unexpectedly restarts (MMC1)

Last post by dragonwarrior « Wed Apr 30, 2025 7:26 am
Replies: 3
by dragonwarrior » Tue Apr 22, 2025 6:29 pm

3 Replies

1021 Views

Last post by dragonwarrior
Wed Apr 30, 2025 7:26 am
beginner-friendly tutorials

Last post by FARID « Sat May 10, 2025 11:53 am
Replies: 3
by losting » Tue Apr 29, 2025 12:28 am

3 Replies

1760 Views

Last post by FARID
Sat May 10, 2025 11:53 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

1091 Views

Last post by Fiskbit
Sun Apr 27, 2025 3:21 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

1353 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

545 Views

Last post by creaothceann
Thu Apr 10, 2025 11:03 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

1093 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

1297 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

1379355 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

5776 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

778 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

2033 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

1751 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

3960 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

2295 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

890 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

1318 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

14551 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

2802 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

19696 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

1322 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

3340 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

1239 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

889 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

22851 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

1056 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

2996 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

10643 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

800 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

1525 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

839 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

1639 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

993 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

733 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

7400 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

4603 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

2720 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

1854 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

4692 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

4331 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

4225 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

1915 Views

Last post by Quietust
Wed Jan 08, 2025 12:10 pm

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