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Symbol is already defined error - MMC1

Last post by dasefx « Mon Mar 17, 2025 3:38 pm
Replies: 10
by dasefx » Sat Mar 15, 2025 8:59 am

10 Replies

1444 Views

Last post by dasefx
Mon Mar 17, 2025 3:38 pm
Namco 163 with 32K CHR-RAM and Four-Screen Mirroring

Last post by aquasnake « Sun Mar 16, 2025 9:21 am
Replies: 19
by Zynidian » Tue Feb 25, 2025 10:05 pm
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19 Replies

2911 Views

Last post by aquasnake
Sun Mar 16, 2025 9:21 am
Namco Serial Checker Interface

Last post by Ben Boldt « Sat Mar 08, 2025 8:56 pm
Replies: 12
by TakuikaNinja » Tue Feb 11, 2025 2:39 am

12 Replies

10573 Views

Last post by Ben Boldt
Sat Mar 08, 2025 8:56 pm
MMC3 scrolling and status bar positioning.

Last post by Dwedit « Fri Mar 07, 2025 10:31 am
Replies: 5
by andyanajonseph » Wed Feb 26, 2025 1:23 pm

5 Replies

1808 Views

Last post by Dwedit
Fri Mar 07, 2025 10:31 am
BNE/BEQ, BCC/BCS, BPL/BMI

Last post by SMB2J-2Q « Thu Mar 06, 2025 7:38 am
Replies: 15
by SMB2J-2Q » Fri Oct 21, 2022 6:42 pm
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2
15 Replies

4527 Views

Last post by SMB2J-2Q
Thu Mar 06, 2025 7:38 am
I2 ILine-PC: FDS development on PC-88/98

Last post by TakuikaNinja « Mon Mar 03, 2025 11:08 pm

by TakuikaNinja » Mon Mar 03, 2025 11:08 pm

0 Replies

423 Views

Last post by TakuikaNinja
Mon Mar 03, 2025 11:08 pm
The "Not One" Check?

Last post by SMB2J-2Q « Mon Mar 03, 2025 7:29 pm
Replies: 9
by SMB2J-2Q » Thu Feb 27, 2025 8:01 pm

9 Replies

1462 Views

Last post by SMB2J-2Q
Mon Mar 03, 2025 7:29 pm
Looking for a hacker to reverse engineer the NES

Last post by Fiskbit « Sun Mar 02, 2025 12:08 pm
Replies: 8
by NoraKisaragi » Sat Mar 01, 2025 2:56 pm

8 Replies

1931 Views

Last post by Fiskbit
Sun Mar 02, 2025 12:08 pm
Text box

Last post by v.depatie « Fri Feb 28, 2025 1:00 pm
Replies: 15
by v.depatie » Fri Feb 21, 2025 8:00 am
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15 Replies

3273 Views

Last post by v.depatie
Fri Feb 28, 2025 1:00 pm
I need Helper: Action Replay to NTSC ?? possíble tô modfiy?

Last post by marvinsaint « Fri Feb 28, 2025 6:38 am

by marvinsaint » Fri Feb 28, 2025 6:38 am

0 Replies

325 Views

Last post by marvinsaint
Fri Feb 28, 2025 6:38 am
Any reason Just Breed plays a text only intro on my early famicom?

Last post by GoodTofuFriday « Thu Feb 27, 2025 12:02 pm
Replies: 6
by GoodTofuFriday » Fri Feb 07, 2025 12:06 pm

6 Replies

2175 Views

Last post by GoodTofuFriday
Thu Feb 27, 2025 12:02 pm
Setting up CHR-ROM with MMC1 using ca65

Last post by dasefx « Tue Feb 25, 2025 11:32 am
Replies: 12
by dasefx » Tue Feb 18, 2025 9:00 am

12 Replies

3684 Views

Last post by dasefx
Tue Feb 25, 2025 11:32 am
NAMETABLE behind a sprite.

Last post by v.depatie « Tue Feb 25, 2025 6:25 am
Replies: 14
by v.depatie » Thu Feb 20, 2025 11:30 pm

14 Replies

3113 Views

Last post by v.depatie
Tue Feb 25, 2025 6:25 am
Is Mesen's vblank flag behavior correct?

Last post by creaothceann « Tue Feb 25, 2025 1:22 am
Replies: 6
by hurry-civic-elixir » Sat Feb 22, 2025 2:01 am

6 Replies

1078 Views

Last post by creaothceann
Tue Feb 25, 2025 1:22 am
Raster Effects Example: MMC3 Continual Palette Swap

Last post by Fiskbit « Sat Feb 22, 2025 8:28 pm
Replies: 3
by gzip » Fri Feb 21, 2025 7:22 pm

3 Replies

1416 Views

Last post by Fiskbit
Sat Feb 22, 2025 8:28 pm
VBCC Optimizing C-compiler now supports NES

Last post by vbc « Sat Feb 22, 2025 1:28 pm
Replies: 195
by Lazycow » Wed Jun 24, 2020 11:35 am
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195 Replies

144716 Views

Last post by vbc
Sat Feb 22, 2025 1:28 pm
Raster Effects Example: Midframe Palette Swap

Last post by gzip « Fri Feb 21, 2025 7:29 pm
Replies: 2
by gzip » Sat Jan 25, 2025 5:21 pm

2 Replies

1439 Views

Last post by gzip
Fri Feb 21, 2025 7:29 pm
Variable Width font technique from NES Celeste Port

Last post by v.depatie « Fri Feb 21, 2025 11:48 am
Replies: 3
by Dwedit » Tue Jan 28, 2025 5:38 pm

3 Replies

2236 Views

Last post by v.depatie
Fri Feb 21, 2025 11:48 am
Does the PPU read NT, AT, BG data even when background rendering is disabled?

Last post by v.depatie « Fri Feb 21, 2025 8:36 am
Replies: 3
by hurry-civic-elixir » Wed Feb 19, 2025 10:40 am

3 Replies

662 Views

Last post by v.depatie
Fri Feb 21, 2025 8:36 am
Question about ppu memory access

Last post by tepples « Tue Feb 18, 2025 7:33 pm
Replies: 2
by yangsiyu » Tue Feb 18, 2025 6:20 pm

2 Replies

751 Views

Last post by tepples
Tue Feb 18, 2025 7:33 pm
Family BASIC on the FDS, from the 80's

Last post by Pokun « Sun Feb 16, 2025 5:49 pm
Replies: 14
by TakuikaNinja » Thu Mar 21, 2024 4:35 am

14 Replies

8108 Views

Last post by Pokun
Sun Feb 16, 2025 5:49 pm
Sharing common code across banks, while keeping one set of labels in NESASM3?

Last post by DRW « Fri Feb 14, 2025 2:20 pm
Replies: 8
by catfort » Mon Feb 10, 2025 6:58 pm

8 Replies

3928 Views

Last post by DRW
Fri Feb 14, 2025 2:20 pm
FCEUX BUG again

Last post by v.depatie « Fri Feb 14, 2025 1:14 pm
Replies: 18
by v.depatie » Mon Feb 10, 2025 9:06 am
1

2
18 Replies

2482 Views

Last post by v.depatie
Fri Feb 14, 2025 1:14 pm
Trouble sending continous data to screen

Last post by tokumaru « Thu Feb 13, 2025 8:23 pm
Replies: 3
by Mapple24 » Thu Feb 13, 2025 11:02 am

3 Replies

1040 Views

Last post by tokumaru
Thu Feb 13, 2025 8:23 pm
Purpose of the loopy registers?

Last post by Bregalad « Wed Feb 12, 2025 3:18 am
Replies: 13
by hurry-civic-elixir » Mon Feb 10, 2025 5:13 pm

13 Replies

3219 Views

Last post by Bregalad
Wed Feb 12, 2025 3:18 am
Question about CHR ROM + CHR RAM combination in NES 2.0

Last post by calima « Tue Feb 11, 2025 5:57 am
Replies: 7
by abooge » Mon Feb 10, 2025 1:56 am

7 Replies

2161 Views

Last post by calima
Tue Feb 11, 2025 5:57 am
Question about MMC1 bank swap only working sometimes

Last post by Bregalad « Mon Feb 10, 2025 2:11 am
Replies: 10
by NeverCameBack » Sun Jan 26, 2025 8:52 am

10 Replies

9026 Views

Last post by Bregalad
Mon Feb 10, 2025 2:11 am
FORWARD SCROLLING, BACKWARD SCROLLING, NAMETABLE ADRESS Behind P1

Last post by v.depatie « Sun Feb 09, 2025 10:29 pm

by v.depatie » Sun Feb 09, 2025 10:29 pm

0 Replies

567 Views

Last post by v.depatie
Sun Feb 09, 2025 10:29 pm
C# Code for Synthesizing Nes Noise: The result is different from the real Nes noise!

Last post by icendragon « Fri Feb 07, 2025 6:33 pm
Replies: 5
by icendragon » Thu Feb 06, 2025 11:55 pm

5 Replies

1105 Views

Last post by icendragon
Fri Feb 07, 2025 6:33 pm
Scheme to recreate Famicom Power Module

Last post by lidnariq « Fri Feb 07, 2025 1:19 am
Replies: 2
by BokuNES » Wed Feb 05, 2025 3:15 pm

2 Replies

2235 Views

Last post by lidnariq
Fri Feb 07, 2025 1:19 am
Question about ppu's shift register

Last post by yangsiyu « Wed Feb 05, 2025 2:19 am
Replies: 2
by yangsiyu » Wed Feb 05, 2025 1:52 am

2 Replies

1594 Views

Last post by yangsiyu
Wed Feb 05, 2025 2:19 am
SMB1 Hacking

Last post by SMB2J-2Q « Tue Feb 04, 2025 10:17 pm
Replies: 103
by SMB2J-2Q » Tue Aug 30, 2022 7:43 am
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103 Replies

55072 Views

Last post by SMB2J-2Q
Tue Feb 04, 2025 10:17 pm
Another Fceux bug

Last post by v.depatie « Tue Feb 04, 2025 6:33 pm
Replies: 7
by v.depatie » Tue Feb 04, 2025 9:10 am

7 Replies

2557 Views

Last post by v.depatie
Tue Feb 04, 2025 6:33 pm
Tiles colision detector V3 ! RUNNING with b button.... messing things up lol

Last post by v.depatie « Sat Feb 01, 2025 8:05 pm
Replies: 1
by v.depatie » Sat Feb 01, 2025 6:52 pm

1 Replies

2629 Views

Last post by v.depatie
Sat Feb 01, 2025 8:05 pm
LDA Immediate taking 6 cycles

Last post by minhmxc « Fri Jan 31, 2025 6:23 am
Replies: 5
by minhmxc » Fri Jan 31, 2025 1:40 am

5 Replies

2684 Views

Last post by minhmxc
Fri Jan 31, 2025 6:23 am
Custom NES Rom - Plays Music with Menu

Last post by calima « Fri Jan 31, 2025 3:29 am
Replies: 6
by Pure1rish » Wed Jan 29, 2025 11:38 am

6 Replies

2872 Views

Last post by calima
Fri Jan 31, 2025 3:29 am
Is there an intuitive way to add Sprite zero hits to the bottom of an 8-Way scrolling engine.

Last post by Bregalad « Tue Jan 28, 2025 8:57 am
Replies: 9
by spaceharrier » Fri Jan 24, 2025 11:02 am

9 Replies

2256 Views

Last post by Bregalad
Tue Jan 28, 2025 8:57 am
Tile collision detection version 2 ! working like a charm

Last post by v.depatie « Mon Jan 27, 2025 5:48 pm
Replies: 1
by v.depatie » Sat Jan 25, 2025 9:56 pm

1 Replies

1280 Views

Last post by v.depatie
Mon Jan 27, 2025 5:48 pm
Special Use Flags?

Last post by SMB2J-2Q « Mon Jan 27, 2025 9:03 am
Replies: 11
by SMB2J-2Q » Thu Aug 15, 2024 3:51 am

11 Replies

4402 Views

Last post by SMB2J-2Q
Mon Jan 27, 2025 9:03 am
vram to ram

Last post by tokumaru « Mon Jan 27, 2025 7:49 am
Replies: 5
by v.depatie » Mon Jan 27, 2025 1:26 am

5 Replies

1577 Views

Last post by tokumaru
Mon Jan 27, 2025 7:49 am
TapeDump v1.0 - a tool to dump carts without extra hardware

Last post by TakuikaNinja « Sun Jan 26, 2025 9:37 pm
Replies: 178
by ccovell » Fri Jul 15, 2011 3:47 pm
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178 Replies

101046 Views

Last post by TakuikaNinja
Sun Jan 26, 2025 9:37 pm
Should I use MMC5? Feedback requested on essay

Last post by Bregalad « Sat Jan 25, 2025 3:03 pm
Replies: 22
by tepples » Tue Jan 21, 2025 8:44 am
1

2
22 Replies

7097 Views

Last post by Bregalad
Sat Jan 25, 2025 3:03 pm
Funny mistake helping me figuring out my calculations. NES PAINT

Last post by v.depatie « Sat Jan 25, 2025 12:27 am
Replies: 3
by v.depatie » Fri Jan 24, 2025 10:58 pm

3 Replies

1744 Views

Last post by v.depatie
Sat Jan 25, 2025 12:27 am
Raster Effects Example: Wipe

Last post by gzip « Fri Jan 24, 2025 4:41 pm

by gzip » Fri Jan 24, 2025 4:41 pm

0 Replies

2126 Views

Last post by gzip
Fri Jan 24, 2025 4:41 pm
MMC3 registers always called in pairs?

Last post by v.depatie « Fri Jan 24, 2025 4:07 am
Replies: 11
by DRW » Thu Jan 23, 2025 3:36 pm

11 Replies

2287 Views

Last post by v.depatie
Fri Jan 24, 2025 4:07 am
tilemap and collision

Last post by v.depatie « Thu Jan 23, 2025 9:03 pm
Replies: 11
by v.depatie » Wed Jan 22, 2025 8:23 am

11 Replies

1960 Views

Last post by v.depatie
Thu Jan 23, 2025 9:03 pm
Initial state of PRGbanks with MMC1?

Last post by odelot « Thu Jan 23, 2025 4:14 pm
Replies: 9
by oRBIT2002 » Thu Jan 20, 2022 10:23 am

9 Replies

3343 Views

Last post by odelot
Thu Jan 23, 2025 4:14 pm
How do NES games keep track of multiple instances of entities?

Last post by tokumaru « Wed Jan 22, 2025 5:14 pm
Replies: 13
by MadCornDog » Sun Apr 07, 2024 9:14 am

13 Replies

7127 Views

Last post by tokumaru
Wed Jan 22, 2025 5:14 pm
Guide: How to build your own NES dumper from scratch (no soldering required)

Last post by KitchenGuy « Mon Jan 20, 2025 11:07 pm
Replies: 7
by KitchenGuy » Mon Jan 20, 2025 9:49 pm

7 Replies

1782 Views

Last post by KitchenGuy
Mon Jan 20, 2025 11:07 pm
Help with dumping MMC3 cart

Last post by KitchenGuy « Mon Jan 20, 2025 3:16 pm
Replies: 14
by KitchenGuy » Sat Jan 04, 2025 3:22 pm

14 Replies

3269 Views

Last post by KitchenGuy
Mon Jan 20, 2025 3:16 pm

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