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Symbol is already defined error - MMC1

Last post by dasefx « Mon Mar 24, 2025 5:51 am
Posted in NESdev
Replies: 14
by dasefx » Sat Mar 15, 2025 8:59 am » in NESdev

14 Replies

2384 Views

Last post by dasefx
Mon Mar 24, 2025 5:51 am
Any mask ROM games since 1997?

Last post by aquasnake « Mon Mar 24, 2025 5:46 am
Posted in NES Hardware and Flash Equipment
Replies: 7
by tepples » Sun Mar 23, 2025 2:51 pm » in NES Hardware and Flash Equipment

7 Replies

410 Views

Last post by aquasnake
Mon Mar 24, 2025 5:46 am
Using PRG-RAM as PRG-ROM

Last post by dasefx « Mon Mar 24, 2025 4:51 am
Posted in NESdev
Replies: 7
by dasefx » Fri Mar 21, 2025 3:15 pm » in NESdev

7 Replies

418 Views

Last post by dasefx
Mon Mar 24, 2025 4:51 am
Flashing UNROM with INLretro programmer

Last post by sav « Mon Mar 24, 2025 1:22 am
Posted in NES Hardware and Flash Equipment
Replies: 4
by sav » Sun Mar 16, 2025 10:05 pm » in NES Hardware and Flash Equipment

4 Replies

723 Views

Last post by sav
Mon Mar 24, 2025 1:22 am
UNROM 512/mapper 30 - flash save support in emulation?

Last post by Fiskbit « Sun Mar 23, 2025 10:43 pm
Posted in NESdev
Replies: 1
by sav » Sun Mar 23, 2025 2:47 pm » in NESdev

1 Replies

149 Views

Last post by Fiskbit
Sun Mar 23, 2025 10:43 pm
Why is Mario's shirt brown?

Last post by DRW « Sun Mar 23, 2025 5:32 pm
Posted in NES Graphics
Replies: 32
by psycopathicteen » Fri Oct 30, 2020 6:30 am » in NES Graphics
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32 Replies

29071 Views

Last post by DRW
Sun Mar 23, 2025 5:32 pm
Magnavox Odyssey 2 Programming Experiences?

Last post by segaloco « Sun Mar 23, 2025 4:45 pm
Posted in Other Retro Dev
Replies: 12
by segaloco » Thu Mar 13, 2025 10:10 am » in Other Retro Dev

12 Replies

3871 Views

Last post by segaloco
Sun Mar 23, 2025 4:45 pm
Mesen - Emulator

Last post by infval « Sun Mar 23, 2025 7:07 am
Posted in NESemdev
Replies: 837
by Sour » Wed Jan 25, 2023 8:08 pm » in NESemdev
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837 Replies

460399 Views

Last post by infval
Sun Mar 23, 2025 7:07 am
macro

Last post by Ben Boldt « Sat Mar 22, 2025 7:42 pm
Posted in NESdev
Replies: 6
by v.depatie » Tue Mar 18, 2025 2:12 pm » in NESdev

6 Replies

1436 Views

Last post by Ben Boldt
Sat Mar 22, 2025 7:42 pm
Anyone have experience with the Atari 7800?

Last post by tokumaru « Sat Mar 22, 2025 2:43 pm
Posted in Other Retro Dev
Replies: 64
by Alex_the_Brave90 » Sun Apr 28, 2024 6:44 pm » in Other Retro Dev
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64 Replies

18011 Views

Last post by tokumaru
Sat Mar 22, 2025 2:43 pm
Trying to figure out why this NES-101 doesn't power ON

Last post by warm_meteor « Sat Mar 22, 2025 2:16 pm
Posted in NES Hardware and Flash Equipment
Replies: 7
by warm_meteor » Sat Mar 22, 2025 7:12 am » in NES Hardware and Flash Equipment

7 Replies

808 Views

Last post by warm_meteor
Sat Mar 22, 2025 2:16 pm
What is the most popular assembler used for NES?

Last post by Pokun « Sat Mar 22, 2025 2:11 pm
Posted in NESdev
Replies: 16
by greatkreator » Sat Oct 26, 2019 2:19 pm » in NESdev
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16 Replies

13564 Views

Last post by Pokun
Sat Mar 22, 2025 2:11 pm
Modern Rationale on NDA'd SDKs

Last post by Oziphantom « Sat Mar 22, 2025 12:41 am
Posted in General Stuff
Replies: 11
by segaloco » Sun Mar 16, 2025 7:48 pm » in General Stuff

11 Replies

3599 Views

Last post by Oziphantom
Sat Mar 22, 2025 12:41 am
How were sprites like the characters from Double Dragon II done? (Palette)

Last post by Anna_TeamRocket « Fri Mar 21, 2025 9:10 pm
Posted in Newbie Help Center
Replies: 9
by ImperialWalker » Thu Mar 20, 2025 10:48 pm » in Newbie Help Center

9 Replies

1864 Views

Last post by Anna_TeamRocket
Fri Mar 21, 2025 9:10 pm
Aligning CPU and PPU clock cycles and actions

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

5 Replies

5243 Views

Last post by merehap
Fri Mar 21, 2025 4:18 pm
THE HUNS: LEVEL 2 LOADED 03 - 21

Last post by v.depatie « Fri Mar 21, 2025 2:42 pm
Posted in Homebrew Projects
Replies: 79
by v.depatie » Wed Dec 04, 2024 11:33 pm » in Homebrew Projects
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79 Replies

23297 Views

Last post by v.depatie
Fri Mar 21, 2025 2:42 pm
Dumping scripts for mapper 15 and mapper 235

Last post by nes356 « Fri Mar 21, 2025 10:12 am
Posted in NES Hardware and Flash Equipment
Replies: 4
by nes356 » Tue Feb 18, 2025 8:10 am » in NES Hardware and Flash Equipment

4 Replies

979 Views

Last post by nes356
Fri Mar 21, 2025 10:12 am
I2 ILine-PC: FDS development on PC-88/98

Last post by TakuikaNinja « Thu Mar 20, 2025 11:47 pm
Posted in NESdev
Replies: 1
by TakuikaNinja » Mon Mar 03, 2025 11:08 pm » in NESdev

1 Replies

668 Views

Last post by TakuikaNinja
Thu Mar 20, 2025 11:47 pm
"City Trouble" ROM now available for free

Last post by Pineapplefish « Thu Mar 20, 2025 10:37 pm
Posted in Homebrew Projects
Replies: 28
by DRW » Mon Dec 31, 2018 3:05 pm » in Homebrew Projects
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28 Replies

24957 Views

Last post by Pineapplefish
Thu Mar 20, 2025 10:37 pm
Pro Action Rocky cheat device for Famicom - reverse engineering

Last post by pitchblackice « Thu Mar 20, 2025 8:39 pm
Posted in NES Hardware and Flash Equipment
Replies: 4
by krzysiobal » Fri Sep 04, 2020 10:22 am » in NES Hardware and Flash Equipment

4 Replies

4192 Views

Last post by pitchblackice
Thu Mar 20, 2025 8:39 pm
Thoughts on Supply Voltage Symbols in Diagrams

Last post by segaloco « Thu Mar 20, 2025 7:59 pm
Posted in General Stuff
Replies: 3
by segaloco » Tue Mar 18, 2025 11:53 am » in General Stuff

3 Replies

579 Views

Last post by segaloco
Thu Mar 20, 2025 7:59 pm
NES Pro Action Replay - DIY

Last post by Modman « Thu Mar 20, 2025 7:52 pm
Posted in NES Hardware and Flash Equipment
Replies: 15
by Modman » Sat Feb 15, 2025 2:27 am » in NES Hardware and Flash Equipment
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15 Replies

4435 Views

Last post by Modman
Thu Mar 20, 2025 7:52 pm
Avoiding certain LLMs' output

Last post by aa-dav « Thu Mar 20, 2025 5:46 pm
Posted in General Stuff
Replies: 8
by tepples » Thu Feb 27, 2025 10:35 pm » in General Stuff

8 Replies

3317 Views

Last post by aa-dav
Thu Mar 20, 2025 5:46 pm
Famicom Network System (aka Famicom Modem) Investigations

Last post by scyther « Thu Mar 20, 2025 10:58 am
Posted in NES Hardware and Flash Equipment
Replies: 177
by Ben Boldt » Sun Feb 24, 2019 8:06 pm » in NES Hardware and Flash Equipment
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177 Replies

166253 Views

Last post by scyther
Thu Mar 20, 2025 10:58 am
PC-Engine: Changing map size mid frame

Last post by tokumaru « Wed Mar 19, 2025 8:06 pm
Posted in Other Retro Dev
Replies: 8
by olddb » Fri Feb 21, 2025 4:38 pm » in Other Retro Dev

8 Replies

1891 Views

Last post by tokumaru
Wed Mar 19, 2025 8:06 pm
Space Mutants 2

Last post by timbone632 « Wed Mar 19, 2025 4:07 am
Posted in Homebrew Projects
Replies: 47
by timbone632 » Tue Oct 29, 2024 11:11 pm » in Homebrew Projects
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47 Replies

20449 Views

Last post by timbone632
Wed Mar 19, 2025 4:07 am
My Highly-modified, Unmodified NES for 8-player Duck Hunt

Last post by Blatantthrowaway « Tue Mar 18, 2025 11:23 pm
Posted in NES Hardware and Flash Equipment
Replies: 3
by dagmor » Sat Aug 03, 2024 2:52 pm » in NES Hardware and Flash Equipment

3 Replies

2685 Views

Last post by Blatantthrowaway
Tue Mar 18, 2025 11:23 pm
HACK_X-02 | Inspired by TOP GUN |

Last post by SUPER-J11BIT « Tue Mar 18, 2025 9:57 am
Posted in SNESdev Homebrew Projects

by SUPER-J11BIT » Tue Mar 18, 2025 9:57 am » in SNESdev Homebrew Projects

0 Replies

1193 Views

Last post by SUPER-J11BIT
Tue Mar 18, 2025 9:57 am
Is there some complete documented/explained source code of a NES-Game?

Last post by c64persian « Tue Mar 18, 2025 4:33 am
Posted in Newbie Help Center
Replies: 11
by nesProHackerNot » Sun May 21, 2023 11:52 am » in Newbie Help Center

11 Replies

7151 Views

Last post by c64persian
Tue Mar 18, 2025 4:33 am
MMC3 scrolling and status bar positioning.

Last post by Fiskbit « Tue Mar 18, 2025 1:36 am
Posted in NESdev
Replies: 8
by andyanajonseph » Wed Feb 26, 2025 1:23 pm » in NESdev

8 Replies

2591 Views

Last post by Fiskbit
Tue Mar 18, 2025 1:36 am
Code not working how I'd expect, possibly going mad

Last post by Ben Boldt « Mon Mar 17, 2025 4:55 pm
Posted in Newbie Help Center
Replies: 34
by nescoda86 » Tue Mar 04, 2025 2:55 pm » in Newbie Help Center
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34 Replies

17029 Views

Last post by Ben Boldt
Mon Mar 17, 2025 4:55 pm
puNES Emulator

Last post by tepples « Mon Mar 17, 2025 4:42 pm
Posted in NESemdev
Replies: 771
by FHorse » Wed Sep 01, 2010 5:26 pm » in NESemdev
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771 Replies

1366271 Views

Last post by tepples
Mon Mar 17, 2025 4:42 pm
Big Nose Freaks Out - issue on some TA-03NP1 famiclone.

Last post by krzysiobal « Mon Mar 17, 2025 3:01 pm
Posted in NES Hardware and Flash Equipment
Replies: 6
by krzysiobal » Mon Mar 10, 2025 3:35 am » in NES Hardware and Flash Equipment

6 Replies

2436 Views

Last post by krzysiobal
Mon Mar 17, 2025 3:01 pm
NES Maker (for VTxx machines)

Last post by tube « Mon Mar 17, 2025 9:21 am
Posted in NES Hardware and Flash Equipment
Replies: 88
by timschuerewegen » Sat Dec 07, 2019 6:36 am » in NES Hardware and Flash Equipment
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88 Replies

114638 Views

Last post by tube
Mon Mar 17, 2025 9:21 am

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