User contributions for Fiskbit

21:3821:38, 14 April 2024 diff hist −1‎ m Family Computer Disk System ‎ was -> is (the FDS still exists today).

07:5807:58, 6 April 2024 diff hist +156‎ Talk:NTSC video ‎ →‎Citation broken link: Notes that the link is now fixed. current
07:5507:55, 6 April 2024 diff hist +32‎ NTSC video ‎ Fixes "Understanding Analog Video Signals" tutorial link. (Maxim Integrated seems to now be at analog.com) current

21:5221:52, 27 March 2024 diff hist +14‎ FamicomBox ‎ →‎Hardware configurations: Adds the newly-discovered SSS-CPU-02 main board revision (using E/E-0 CPU/PPU). Differences compared to 04 are not yet known. current

08:2008:20, 25 March 2024 diff hist +2,807‎ EXP pins ‎ Adds Broke Studio boards. Makes a small change to the ATtiny13 programming description for clarity. current

21:0621:06, 18 March 2024 diff hist 0‎ 6502 assembly optimisations ‎ →‎Avoiding the need for CLC/SEC with ADC/SBC: If carry is clear, SBC should use value-1, not value+1. Thanks to Ooxie for reporting. current
10:2510:25, 18 March 2024 diff hist +43‎ m CPU memory map ‎ Fixes two references to the now-removed "cartridge space". Clarifies that the vectors in the unmapped space are supplied by the cartridge.
09:1809:18, 18 March 2024 diff hist +147‎ CPU memory map ‎ Clarifies that the "cartridge space" is really unmapped space cartridges can use. Adds the extremely common cartridge RAM and ROM mapping to the table to avoid users thinking ROM starts at $4020.

01:2601:26, 17 March 2024 diff hist +18‎ DMA ‎ →‎Register conflicts: Adds Twin Famicom and Famicom Titler to the list of consoles known to clock joypads per CPU cycle. current

15:5915:59, 15 March 2024 diff hist −900‎ APU DMC ‎ Removes the list of DMC DMA cycle length cases; a similar list now lives in 'Controller reading code' where it's more comprehensive for the task at hand. While this list is convenient, it can be misleading and is not enough to implement DMA correctly.
15:5515:55, 15 March 2024 diff hist +319‎ DMA ‎ →‎References: Brings over references from the defunct APU DMC cycle count section.
15:5415:54, 15 March 2024 diff hist +773‎ Controller reading code ‎ Adds a cycle count table for various DMC DMA cases to the synced reads section. This is more relevant and less misleading here than on the APU DMC page. current
15:0315:03, 15 March 2024 diff hist +237‎ DMA ‎ Adds more information to the summary table and rewords some points for clarity.

16:2316:23, 8 March 2024 diff hist +3‎ m NES 2.0 ‎ →‎Default Expansion Device: Adds Famicom Network Controller link. Updates SNES mouse link to dedicated SNES mouse page.

02:5902:59, 5 March 2024 diff hist +47‎ User:Fiskbit ‎ →‎Famicom (RF): Adds the newly-discovered HVC-CPU-02 board. current

01:4401:44, 21 February 2024 diff hist +1‎ m CCU v2.00 CF30288 pinout ‎ Typo. current

07:1707:17, 9 February 2024 diff hist −399‎ Patents ‎ Fixes links, which were all dead. current

04:1404:14, 3 February 2024 diff hist −4‎ m Turbo File ‎ Grammar.

16:3916:39, 26 January 2024 diff hist 0‎ m Color $0D games ‎ Replaces blown-out thumbnails with actual animated images. Slightly annoying, but less misleading / more useful.
06:0806:08, 26 January 2024 diff hist +113‎ m MMC1 ‎ Adds a reference to a forum thread about the MMC MULTI CHECKER-02 development board.

14:3314:33, 25 January 2024 diff hist +8‎ m MMC1 ‎ →‎Reset: Wording.
11:4211:42, 25 January 2024 diff hist +331‎ MMC1 ‎ →‎Reset: Adds a note about why some games do reset writes to all 4 MMC1 registers.

07:1107:11, 20 January 2024 diff hist −8‎ Input devices ‎ →‎Usage of port pins by hardware type: Removes read clock signal from controllers that likely don't actually use it. current
06:4506:45, 20 January 2024 diff hist +69‎ Famicom Network Controller ‎ Adds a controller image. Does some minor cleanup.
06:3806:38, 20 January 2024 diff hist +139‎ N File:Nintendo-Famicom-Modem-Controller.jpg ‎ The Famicom Network Controller, for use with Famicom Network System software. Image by Evan Amos current
05:2405:24, 20 January 2024 diff hist +2,699‎ Input devices ‎ Fixes content accidentally removed in previous edit.
05:2205:22, 20 January 2024 diff hist +2,374‎ Input devices ‎ Reworks the signal table to be better organized and easier to read. Adds more devices. Fixes the zapper audio signal.

08:1608:16, 19 January 2024 diff hist +25‎ m Konami Hyper Shot ‎ Adds controllers category. current

08:5708:57, 18 January 2024 diff hist +324‎ Family Computer Disk System ‎ Adds an infobox and FDS image.
06:2906:29, 18 January 2024 diff hist +167‎ N File:Nintendo-Famicom-Disk-System.jpg ‎ A Famicom plus Famicom Disk System. The disk drive connects through a cable on the RAM adapter cartridge. Image by Evan Amos current
05:2705:27, 18 January 2024 diff hist +61‎ Super NES Mouse ‎ Adds an SNES mouse image. current
05:2605:26, 18 January 2024 diff hist +78‎ N File:SNES-Mouse-and-Pad.jpg ‎ The SNES mouse. Image by Evan Amos current
05:2605:26, 18 January 2024 diff hist +77‎ SNES controller ‎ Adds an SNES controller image. current
05:2405:24, 18 January 2024 diff hist +92‎ N File:SNES-Controller-Flat.jpg ‎ The standard SNES controller. Image by Evan Amos current
05:2305:23, 18 January 2024 diff hist +50‎ R.O.B. ‎ Adds a ROB image. current
05:2005:20, 18 January 2024 diff hist +224‎ N File:NES-ROB.jpg ‎ The NES R.O.B. (Robotic Operating Buddy), a device separate from the console that is controlled by flashing on the TV and capable of pressing controller buttons. Image by Evan Amos current
04:4804:48, 18 January 2024 diff hist +61‎ Four player adapters ‎ Adds a Four Score image. current
04:4704:47, 18 January 2024 diff hist +105‎ N File:NES-Four-Score.jpg ‎ The NES Four Score, a four player adapter. Image by Evan Amos current
04:3304:33, 18 January 2024 diff hist +205‎ Standard controller ‎ Adds NES and Famicom player 2 controller images. current
04:3004:30, 18 January 2024 diff hist +192‎ N File:Nintendo-Famicom-Controller-II-FL.jpg ‎ The standard second-player Famicom controller, which omits start and select buttons but features a microphone with volume slider. Image by Evan Amos current
04:2604:26, 18 January 2024 diff hist +91‎ N File:NES-Controller-Flat.jpg ‎ The standard NES controller. Image by Evan Amos current

18:2718:27, 17 January 2024 diff hist +57‎ Game Genie ‎ Adds a Game Genie image.
18:2418:24, 17 January 2024 diff hist +170‎ N File:Game-Genie-NES.jpg ‎ The Galoob Game Genie, a pass-through cartridge that can modify cartridge ROM values to alter game behavior. Image by Evan Amos current
17:5817:58, 17 January 2024 diff hist +32‎ m PPU rendering ‎ Adds formatting that ensures the priority table never hangs into the next section. current
17:5617:56, 17 January 2024 diff hist +95‎ Four player adapters ‎ Adds an NES Satellite image.
17:3417:34, 17 January 2024 diff hist +112‎ N File:NES-Satellite.jpg ‎ The NES Satellite, a wireless four player adapter. Image by Evan Amos current
17:3317:33, 17 January 2024 diff hist +97‎ Zapper ‎ Adds a gray Zapper image. current
17:3117:31, 17 January 2024 diff hist +92‎ N File:Nintendo-Entertainment-System-NES-Zapper-Gray-R.jpg ‎ The NES Zapper (gray version). Image by Evan Amos current
17:2817:28, 17 January 2024 diff hist +24‎ m Famicom 3D System ‎ Adds a caption on the device image. current
17:0117:01, 17 January 2024 diff hist +1,050‎ Famicom 3D System ‎ Rewrites the page opening with more meaningful information than a Wikipedia quote. Adds a games list (thank you to Retronika). Adds a device image.
16:5616:56, 17 January 2024 diff hist +126‎ N File:Famicom-3D-System.jpg ‎ The Famicom 3D System, a 3D shutter-glass expansion port device. Image by Evan Amos current
15:4915:49, 17 January 2024 diff hist −43‎ m Turbo File ‎ Reverted edits by Retronika (talk) to last revision by Qalle Tag: Rollback
15:3215:32, 17 January 2024 diff hist +31‎ N Famicom 3D glasses ‎ Fiskbit moved page Famicom 3D glasses to Famicom 3D System: Moves page to match the device's name. current Tag: New redirect
15:3215:32, 17 January 2024 diff hist 0‎ m Famicom 3D System ‎ Fiskbit moved page Famicom 3D glasses to Famicom 3D System: Moves page to match the device's name.

21:1121:11, 16 January 2024 diff hist +118‎ m PPU rendering ‎ Cleans up some sentences. Adds a reference for the greyscale disable behavior.
20:5020:50, 16 January 2024 diff hist +3,980‎ PPU rendering ‎ Replaces the preface section with a walk through the background rendering pipeline and pixel selection logic.
14:1314:13, 16 January 2024 diff hist 0‎ m PPU attribute tables ‎ Typo. (x by y, not y by x) current

20:0920:09, 15 January 2024 diff hist +385‎ PPU rendering ‎ Updates the register rendering diagram: Cleans up the attributes side, explains when transfers happen, adds EXT input/output.
13:3313:33, 15 January 2024 diff hist +2,041‎ Arkanoid controller ‎ Adds a section on DPCM safety, because the Arkanoid controller has even more potential problems with DMC DMA than other controllers. Notes that a conversion should be started some time before the very first controller read to ensure valid data. current

15:4215:42, 14 January 2024 diff hist −90‎ m Game bugs ‎ Removes sorting from the tables because the entries are already sorted and using sorting misorders entries starting with The.
15:3615:36, 14 January 2024 diff hist +516‎ Game bugs ‎ Adds Ai Senshi Nicol FDS race condition.
00:0800:08, 14 January 2024 diff hist +109‎ Controller reading code ‎ →‎DPCM Safety using Repeated Reads: Explains why repeated reads have a cycle budget.

09:5909:59, 13 January 2024 diff hist +30‎ Controller reading code ‎ Notes that the DPCM bug is fixed on PAL.
09:5309:53, 13 January 2024 diff hist +4,825‎ Controller reading code ‎ Adds a DPCM Safety preamble explaining the bug and limitations common to all approaches. Adds (comprehensive?) pros and cons for each approach. Cleans up the synced reads explanation.

10:3610:36, 27 December 2023 diff hist +118‎ Game bugs ‎ Adds Super Cars as another example of a game relying on the $2004 read functionality added in the 2C02G.

21:4921:49, 26 December 2023 diff hist +2‎ m Tools ‎ Updates the dead Famitracker links to its new website. current

17:1117:11, 18 December 2023 diff hist +22‎ Tools ‎ →‎General NES graphics studios: Notes the supported platforms for RetroSpriteEditor.
17:0917:09, 18 December 2023 diff hist +110‎ Tools ‎ →‎General NES graphics studios: Adds RetroSpriteEditor.

09:5809:58, 15 December 2023 diff hist +538‎ Game bugs ‎ →‎Reliance on RAM values: Adds Keroppi to Keroriinu no Splash Bomb! crash bug.

04:4604:46, 13 December 2023 diff hist +8‎ m PPU registers ‎ →‎Internal registers: Wording on v description.

23:5223:52, 10 December 2023 diff hist 0‎ m NES 2.0 ‎ Reverses the order of Dn..Dm bits in the documentation to be high to low, matching the endianness we use within the bytes themselves. This addresses confusion about whether the data was stored in reverse.
12:1312:13, 10 December 2023 diff hist −139‎ m PPU scrolling ‎ Reverted edits by Binary-sequence (talk) to last revision by Jroweboy Tag: Rollback
12:1112:11, 10 December 2023 diff hist +798‎ PPU registers ‎ Better-integrates internal registers into this page. Makes improvements to the PPUSCROLL and PPADDR descriptions.

00:4800:48, 16 November 2023 diff hist +115‎ FDS disk format ‎ →‎Disk info block (block 1): Not all prototype disks follow the presumed "Disk version" format. current
00:4600:46, 16 November 2023 diff hist +324‎ Game bugs ‎ Corrections and more details regarding Gimmick input glitches.

17:0717:07, 14 November 2023 diff hist +333‎ PPU registers ‎ →‎The PPUDATA read buffer (post-fetch): More improvements for clarity based on feedback.
12:3112:31, 14 November 2023 diff hist +16‎ Controller reading code ‎ →‎DPCM Safety using OAM DMA: Clarifies that the three writes when an interrupt occurs are the stack writes.

23:5023:50, 12 November 2023 diff hist +1‎ UNROM 512 ‎ Replaces "wram" with "RAM" to avoid confusion. WRAM often refers to non-persistent PRG-RAM, which this mapper doesn't natively support. current

14:0914:09, 11 November 2023 diff hist +192‎ Game Genie ‎ →‎Bugs: Adds an example Game Genie code that relies on bus conflicts, as a test case for emulators.

00:5500:55, 2 November 2023 diff hist −317‎ Color $0D games ‎ Cleans up some workarounds. Removes a patcher device suggestion: We should not be suggesting that people make or use hardware with the purpose of driving a 1 onto the bus so strongly that the 1 wins a bus conflict.

10:1710:17, 25 October 2023 diff hist 0‎ m INES Mapper 101 ‎ →‎Bank Select ($6000-$7FFF): Formatting. current

02:4202:42, 13 October 2023 diff hist +37‎ PPU variants ‎ Explicitly notes 2C05-99 grayscale has standard 2C02 behavior.

09:5609:56, 9 October 2023 diff hist +1,135‎ PPU registers ‎ Updates the scroll section to make it clear that scroll must be written *after* PPUADDR and *with* PPUCTRL. Rewrites the palette read section for hopefully more detail and clarity, and to mention that not all PPUs support reading palettes.
04:1004:10, 9 October 2023 diff hist +3‎ Four player adapters ‎ Attempts to use the / prefix on joypad data lines when referring to signals that haven't yet been inverted. Cleans up the serial report formatting slightly.
03:5103:51, 9 October 2023 diff hist +1,157‎ Expansion port ‎ Rewrites and modernizes the Famicom EXP port signal descriptions. Adds a / prefix to joypad data lines to indicate inversion. Standardizes (for now) on OUTn formatting for joypad output bits. current

20:3420:34, 8 October 2023 diff hist −78‎ 2A03 ‎ Improves the opening line of the article. Removes unnecessary and incorrect 2A03/2A07 revision references. current

01:5901:59, 5 October 2023 diff hist +321‎ 2A03 ‎ Links to the PIT page now that it's not on the CPU test page anymore. Separates test mode and timer register ranges. Notes DMA register conflicts.

00:3200:32, 30 September 2023 diff hist +5‎ m MMC5 pinout ‎ Adds back the missing † note indicator.

07:4807:48, 23 September 2023 diff hist +1‎ PPU variants ‎ Test results suggest the RP2C04-0001 is probably a revision C PPU.

06:3306:33, 22 September 2023 diff hist +33‎ CPU variants ‎ Adds new ceramic RP2A03 image.
06:3106:31, 22 September 2023 diff hist +16‎ PPU variants ‎ Adds new RP2C02 image.
06:3006:30, 22 September 2023 diff hist +31‎ N File:RP2C02 3F4 13.jpg ‎ From GuidoAnchovy current
06:2906:29, 22 September 2023 diff hist +31‎ N File:RP2A03 3G1 09.jpg ‎ From GuidoAnchovy current
00:2800:28, 22 September 2023 diff hist +427‎ INES Mapper 003 ‎ Updates Notes to better explain the bus conflict situation. Thanks to lidnariq and NewRisingSun for help hopefully getting this right. current

02:3102:31, 14 September 2023 diff hist −26‎ Status flags ‎ →‎The B flag: Minor sentence changes for clarity. current

02:4802:48, 13 September 2023 diff hist +73‎ Status flags ‎ Tries to add more clarity, particularly around the always-1 bit and B flag. Moves the table of contents to a more sensible place.

21:3821:38, 11 September 2023 diff hist +200‎ FDS disk format ‎ Update date description with Heisei era, last 2 digits of current year, and Disk Writer information.

11:2411:24, 3 September 2023 diff hist −21‎ DMA ‎ →‎Bugs: Adds new findings from dmc_dma_implicit_stop_level_test, which uses CPU test mode to sample the DMC level. The implicit-stop unexpected DMA is from the same address and is played.

16:1716:17, 22 August 2023 diff hist +19‎ PPU variants ‎ Adds 2C05-99 PPU status ($2002) findings by forple from my 2002_open_bus_test_wip1 test.

01:3601:36, 19 August 2023 diff hist +213‎ PPU variants ‎ Adds RC2C05-99 findings by forple from Micro Machines, Felix the Cat, palette_read_test, and oam_flicker_test.

06:0806:08, 11 August 2023 diff hist +18‎ m Nintendo header ‎ Adds a References header. current

22:0022:00, 19 July 2023 diff hist +833‎ CPU Test Mode ‎ Adds more 2A03G/H test pin information.

20:2320:23, 6 June 2023 diff hist +184‎ PPU palettes ‎ →‎Palettes: Some formatting improvements.

19:3219:32, 17 May 2023 diff hist +476‎ EXP pins ‎ Adds SFEAM expansion audio module.

09:5809:58, 16 May 2023 diff hist −16‎ m INES Mapper 170 ‎ Removes bizarre mention that the game using this mapper is non-pornographic. current

01:5001:50, 2 May 2023 diff hist −152‎ PPU sprite evaluation ‎ Removes a dead link that also isn't on archive.org. The creator of the linked content doesn't appear to be active anymore. current

00:3700:37, 25 April 2023 diff hist −1‎ Programming UNROM ‎ Fixes and improves the example code comments.

07:5307:53, 23 April 2023 diff hist −2‎ m NTSC video ‎ Replaces 'colour' with 'color' for consistency and searchability.

23:3223:32, 22 April 2023 diff hist +1,156‎ Family Computer Network Adapter ‎ Adds a controller layout and a link to a page with images of the modem and controller. current

23:0323:03, 16 April 2023 diff hist +1,582‎ CPU memory map ‎ More address space details and caveats. Clearer formatting.

06:3506:35, 13 April 2023 diff hist −1‎ APU DMC ‎ →‎Concept: Changes 'sprite zero' to 'sprite 0' for consistency and thus searchability. Minor changes to wording for slightly better flow.
06:2906:29, 13 April 2023 diff hist +233‎ Glossary ‎ →‎S: Changes 'sprite zero' to 'sprite 0' for consistency and thus searchability. Improves the definition. current
06:2206:22, 13 April 2023 diff hist −6‎ PPU rendering ‎ →‎Cycles 1-256: Changes 'sprite zero' to 'sprite 0' for consistency and thus searchability.
06:2006:20, 13 April 2023 diff hist +4‎ PPU OAM ‎ Changes 'sprite zero' to 'sprite 0' for consistency and thus searchability.

04:3804:38, 31 March 2023 diff hist −263‎ PPU registers ‎ →‎Note: Tokumaru's quad-write code is now hosted on the PPU scrolling page.
04:3704:37, 31 March 2023 diff hist +621‎ PPU scrolling ‎ Adds tokumaru's 2006/2005/2005/2006 code with teaching-oriented edits. Received permission from tokumaru to host this on the wiki as public domain.

01:2501:25, 26 March 2023 diff hist +191‎ Tricky-to-emulate games ‎ Notes Arkista's Ring crash when using NESRGB or Hi-Def NES.

03:1803:18, 25 March 2023 diff hist +26‎ PPU registers ‎ →‎OAM DMA ($4014) > write: Purging yet another use of even/odd CPU cycle terminology in favor of get/put.

18:1018:10, 22 March 2023 diff hist 0‎ m Port test controller ‎ Fixes typo. current
13:5213:52, 22 March 2023 diff hist +2,095‎ N Port test controller ‎ Adds page documenting port test controller. Thanks to lidnariq for much of this information.

11:1211:12, 12 March 2023 diff hist +4‎ m Expansion Port Sound Module ‎ →‎Caveat and workarounds: Link to DMA page.
11:0411:04, 12 March 2023 diff hist +12‎ m Expansion Port Sound Module ‎ →‎Caveat and workarounds: Clarifies we're talking about any write cycle, not write instruction or EPSM write.

03:1203:12, 7 March 2023 diff hist +140‎ DMA ‎ →‎Bugs: UA6527P-based clones have different bug behavior because the sample ends 1 APU cycle later than official CPUs.

02:2802:28, 3 March 2023 diff hist +13‎ DMA ‎ →‎Register conflicts: Notes newest findings regarding behavior on PAL. None of this matches what I expected and I no longer have a guess as to how PAL works.

20:5920:59, 2 March 2023 diff hist +131‎ APU ‎ →‎Status ($4015): More details about open bus on bit 5.
10:0310:03, 2 March 2023 diff hist +252‎ APU ‎ →‎Status ($4015): Notes (lack of) impact of reads on open bus.

08:3708:37, 26 February 2023 diff hist −42‎ NES 2.0 submappers ‎ →‎004: MMC3: More MMC3A/C renaming. current
02:2002:20, 26 February 2023 diff hist +6‎ NES 2.0 submappers ‎ →‎004: MMC3: Renames MMC3C submapper to Sharp MMC3 and MMC3A to NEC MMC3.

16:5616:56, 24 February 2023 diff hist +98‎ MediaWiki:Loginprompt ‎ Makes the start of the prompt perhaps more attention-grabbing and obviously about registration. Adds forum and Discord links. current

15:3215:32, 23 February 2023 diff hist +86‎ Talk:FDS disk format ‎ Forgot to add message signature. current
15:3215:32, 23 February 2023 diff hist +536‎ Talk:FDS disk format ‎ Disk version / price discussion.
00:4300:43, 23 February 2023 diff hist −861‎ FDS disk format ‎ Updates disk info block: Adds J 'Game type' (Nomura no Famicom Trade). Changes 'Price' to 'Disk version'. Marks field $18 as unknown (all $00's). Changes 'Disk type' to 'Disk type (FMC)', as this is 1 only for FMC blue disks (all but Risa no Yousei Densetsu). Adds 'Disk type (other)' field. Removes 'Price' section, which seems to have no backing.

01:5201:52, 19 February 2023 diff hist +104‎ Emulator tests ‎ Adds a warning box about dead links and directs people to those tests on GitHub. We're still figuring out how to improve this page going forward.

12:2812:28, 15 February 2023 diff hist +19‎ Cycle reference chart ‎ Updates PAL OAM write window to match newest findings. Exchanges 'even/odd' cycle terminology for 'get/put'.
12:1812:18, 15 February 2023 diff hist +236‎ PPU OAM ‎ →‎Dynamic RAM decay: org's analysis of PAL forced OAM refresh matches testing in Sour's thread: refresh begins on scanline 265.

11:4611:46, 13 February 2023 diff hist +248‎ CPU variants ‎ Notes that DMC status bit is cleared 1 APU cycle late on UA6527P, TA-03NP1, (T)1818P, UM6561-2. Other clones untested.
11:1411:14, 13 February 2023 diff hist +167‎ PPU variants ‎ Notes that UA6561 emphasis is much stronger than normal. Notes that MC-P-502 die shot matches UA6538. Thanks to Eugene.S for this information.
08:4208:42, 13 February 2023 diff hist −11‎ NES 2.0 ‎ For CPU/PPU timing, the listed chip should be the UA6538 PPU, not the UA6527P CPU. Thanks to Eugene.S for identifying this.
04:4704:47, 13 February 2023 diff hist +287‎ Glossary ‎ Adds backdrop, palette RAM. Modifies CGRAM, CHR, CIC, CIRAM, CL, IRQ, PRG, SL, VRAM. Removes BFT.

05:4005:40, 11 February 2023 diff hist +180‎ PPU variants ‎ Notes UM6561AF-2 bug. Thanks to Eugene for making me aware of it and that F and BF are unaffected.
05:2505:25, 11 February 2023 diff hist +358‎ CPU variants ‎ UM6561xx-2 updates. F is suspected to be the first revision. Eugene reports F has correct duties. Notes my findings regarding AF DMC and illegal instruction behavior.

03:2603:26, 7 February 2023 diff hist +193‎ 6502 assembly optimisations ‎ →‎BIT trick: Notes that you can also do this with the zero page version. Notes the caveat that this can trigger register read side-effects.

12:3412:34, 6 February 2023 diff hist +527‎ Controller reading code ‎ Replaces even/odd cycle terminology with get/put. Adds more relevant caveats. Links to new DMA page.
03:4403:44, 6 February 2023 diff hist 0‎ Detect TV system ‎ Polling $2002, not $2001. current

01:4601:46, 3 February 2023 diff hist +14‎ Sprite size ‎ Adds Zelda II to list of games using sprites as a right-side column disable. current

03:5903:59, 1 February 2023 diff hist +22‎ m INES Mapper 003 ‎ Fixes nescartdb link.

07:2807:28, 30 January 2023 diff hist +102‎ MK5060 pinout ‎ The Hong Kong Famicom actually uses a different chip. current

00:3800:38, 25 January 2023 diff hist +22‎ Color $0D games ‎ Adds Castelian to the list.

17:1717:17, 23 January 2023 diff hist −45‎ PPU palettes ‎ Removes link to the now-deleted Chinese version of the page, which was almost entirely English.
17:1717:17, 23 January 2023 diff hist −38‎ PPU OAM ‎ Removes link to the now-deleted Chinese version of the page, which was almost entirely English.
17:1717:17, 23 January 2023 diff hist −67‎ PPU attribute tables ‎ Removes link to the now-deleted Chinese version of the page, which was almost entirely English.
17:1717:17, 23 January 2023 diff hist −52‎ PPU ‎ Removes link to the now-deleted Chinese version of the page, which was almost entirely English.

04:1104:11, 21 January 2023 diff hist −113‎ User:Tepples/President ‎ Removes inappropriate content.

21:2521:25, 17 January 2023 diff hist +42‎ NES 2.0 Mapper 320 ‎ Adds register address ranges to register titles. current
20:4220:42, 17 January 2023 diff hist +1‎ m NES 2.0 Mapper 409 ‎ Typos and wording.

02:2402:24, 15 January 2023 diff hist +1,788‎ N User talk:Qalle ‎ Request to stop using special characters: × – …

20:0420:04, 7 January 2023 diff hist +94‎ m DMA ‎ Summary section: Notes that failed halts delay to the next *CPU* cycle. Attempts to clarify DMC DMA behavior (failed halts delay to the next CPU cycle).
12:2812:28, 7 January 2023 diff hist +131‎ DMA ‎ Adds a reference to lidnariq's post explaining joypad clocking on RF Famicoms.

23:3523:35, 6 January 2023 diff hist +39‎ DMA ‎ Removes ambiguous 'happens' wording. Clarifies in the summary what kind of cycle we're talking about (though it's always CPU cycles when absent a descriptor).
17:4517:45, 6 January 2023 diff hist +125‎ DMA ‎ Adds link to BreakingNES analysis of the DMA circuit.
11:0111:01, 6 January 2023 diff hist +34‎ DMA ‎ Clarifies that there are two DMA units. Clarifies that the 6502 core itself ignores halts if it's writing.
09:1309:13, 6 January 2023 diff hist +27,606‎ DMA ‎ Replaces DMA article stub with detailed DMA behavior writeup. There are still some edge cases to test and 2A07 behavior to verify, but it's largely complete.

23:4123:41, 24 December 2022 diff hist +468‎ Demo Vision ‎ Notes the not-yet-understood shared reset cable and the behavior of the Game Boy vs GB Pocket power switches. current
05:2005:20, 24 December 2022 diff hist 0‎ m CPU variants ‎ Fixes formatting.
05:1305:13, 24 December 2022 diff hist +1,890‎ Demo Vision ‎ New findings from the rev A firmware.

09:2909:29, 23 December 2022 diff hist +46‎ m FamicomBox ‎ Minor clarity improvements.

10:1310:13, 20 December 2022 diff hist +72‎ EXP pins ‎ →‎Expansion Port Sound Module (EPSM): Notes EXP2 and 9 in text description.

10:4810:48, 7 December 2022 diff hist +135‎ Family Computer Network Adapter ‎ →‎Controller: Clarifies controller section ('extends' implies compatibility with the standard controller). Adds note about post-report reads.

11:1811:18, 6 December 2022 diff hist +23‎ TV-NET controller ‎ The Universal no My Trade controller is the same as the Daiwa one aside from branding. current

13:2213:22, 2 December 2022 diff hist +25‎ N Demo Boy II ‎ Demo Boy II is approximately the same as the Demo Vision. current Tag: New redirect
10:0610:06, 2 December 2022 diff hist +1,268‎ Demo Vision ‎ Adds power and Game Boy pinouts. Notes that Game Boy 'power' control is actually /reset control.
06:1606:16, 2 December 2022 diff hist +128‎ Demo Vision ‎ →‎Hardware configurations: Adds the PCB colors and note about rev B PCBs.

01:2201:22, 27 November 2022 diff hist 0‎ Demo Vision ‎ →‎Software: Corrects DIP switch time setting (7 minutes, not 8).

04:1904:19, 23 November 2022 diff hist +130‎ Coconuts Japan Pachinko Controller ‎ Notes dial range (~90 degrees). Improves section on conversion rate and multiple conversions in a single pass.
02:5002:50, 23 November 2022 diff hist 0‎ Coconuts Japan Pachinko Controller ‎ Fixes read output address.

06:2306:23, 22 November 2022 diff hist +267‎ Coconuts Japan Pachinko Controller ‎ Adds PCB images.
06:1406:14, 22 November 2022 diff hist +112‎ N File:Coconuts Japan Pachinko Controller PCB 4.jpg ‎ PCB image of the Coconuts Japan Pachinko Controller. Image by Fiskbit current
06:1306:13, 22 November 2022 diff hist +112‎ N File:Coconuts Japan Pachinko Controller PCB 3.jpg ‎ PCB image of the Coconuts Japan Pachinko Controller. Image by Fiskbit current
06:1306:13, 22 November 2022 diff hist +112‎ N File:Coconuts Japan Pachinko Controller PCB 2.jpg ‎ PCB image of the Coconuts Japan Pachinko Controller. Image by Fiskbit current
06:1306:13, 22 November 2022 diff hist +112‎ N File:Coconuts Japan Pachinko Controller PCB 1.jpg ‎ PCB image of the Coconuts Japan Pachinko Controller. Image by Fiskbit current

06:2006:20, 21 November 2022 diff hist +11‎ Coconuts Japan Pachinko Controller ‎ Adds the model code.
06:0906:09, 21 November 2022 diff hist +4,337‎ Coconuts Japan Pachinko Controller ‎ Rewrites the Pachinko Controller page with new findings. (Thanks to lidnariq for his substantial help understanding the hardware.)
05:5205:52, 21 November 2022 diff hist +48‎ N Coconuts Pachinko ‎ Fiskbit moved page Coconuts Pachinko to Coconuts Japan Pachinko Controller: Moving to match the full name of the controller current Tag: New redirect
05:5205:52, 21 November 2022 diff hist 0‎ m Coconuts Japan Pachinko Controller ‎ Fiskbit moved page Coconuts Pachinko to Coconuts Japan Pachinko Controller: Moving to match the full name of the controller

12:2512:25, 20 November 2022 diff hist +379‎ m Emulator tests ‎ Reverted edits by Fiskbit (talk) to last revision by Rainwarrior Tag: Rollback

03:0403:04, 19 November 2022 diff hist −379‎ m Emulator tests ‎ Reverted edits by Rainwarrior (talk) to last revision by Lidnariq Tags: Rollback Reverted

04:1204:12, 17 November 2022 diff hist +7,568‎ Expansion Port Sound Module ‎ Adds detailed information on OUT toggle workarounds to safely write to the EPSM.

00:3600:36, 14 October 2022 diff hist +960‎ MMC1 ‎ Moves the shift register explanation, examples, and consecutive writes part of Registers into their own section, organized in a way that should improve clarity. Improves the explanation. Adds reset examples.

15:0515:05, 13 October 2022 diff hist +93‎ MMC1 ‎ →‎Load register ($8000-$FFFF): Adds note to Load register about D0 being ignored on consecutive-cycle writes.

20:1520:15, 3 October 2022 diff hist +100‎ FamicomBox ‎ Adds arrows on joypad D3 and D4 (not sure if there was a reason these were missing). Notes at port pinouts that J2 D3 and D4 can be disabled with DIP switch 10. Rephrases $4017R DIP switch note.

10:3210:32, 27 September 2022 diff hist −159‎ PPU variants ‎ Removes the RP2C03G. There is no evidence this chip actually exists. Very few mentions online, possibly stemming from a typo long ago. Happy to add this back if anyone can support its existence at all.

08:1208:12, 26 September 2022 diff hist −9‎ CPU variants ‎ Confirmed that later 2A03G's have an additional DMC bug (introduced sometime 1989-1991). (Thanks to Lockster for running dmc_dma_implicit_stop_test on multiple CPUs in the same system.)

08:4208:42, 22 September 2022 diff hist +34‎ EXP pins ‎ →‎CopyNES: More detail on CopyNES EXP0 operation.

06:3106:31, 21 September 2022 diff hist +4‎ EXP pins ‎ Fixes pinout typo.
06:3106:31, 21 September 2022 diff hist +2,317‎ EXP pins ‎ Adds INL cartridge information and expands on the INL expansion audio dongle.

07:0407:04, 17 September 2022 diff hist +2‎ User:Fiskbit ‎ →‎NES-001: Pedantic edit to rev 01 board, which has 01 on the board, but not explicitly in the board name.

01:5701:57, 13 September 2022 diff hist +130‎ CPU variants ‎ Adds links. Improves pin 30 and DMC DMA notes.

23:0523:05, 10 September 2022 diff hist −1,144‎ CPU Test Mode ‎ Removes the 2A03 PIT information (now on its own page). Notes 2A03 pin 30 does nothing.
22:5422:54, 10 September 2022 diff hist +4,984‎ N RP2A03 Programmable Interval Timer ‎ Adds a page dedicated to the nonfunctional RP2A03 PIT. Expands significantly on content previously on CPU Test Mode page. (Thanks to lidnariq for all the help getting this content together.)

09:3409:34, 7 September 2022 diff hist +120‎ TV-NET controller ‎ P/T switch purpose, minor improvements.
09:3409:34, 7 September 2022 diff hist +334‎ TV-NET Rank 2 controller ‎ P/T switch purpose, printer note, minor improvements. current

09:4409:44, 19 August 2022 diff hist +17‎ FamicomBox ‎ →‎Joypad 2 in ($4017R): Clarifies undriven joypad bit direction.
09:3409:34, 19 August 2022 diff hist +74‎ FamicomBox ‎ →‎Slot select ($5004W): More details on register unmapping.

12:2112:21, 14 August 2022 diff hist −1,075‎ Cartridge connector ‎ Removes EXP pin descriptions and links to EXP pins page, instead.

23:1623:16, 13 August 2022 diff hist +145‎ EXP pins ‎ →‎NES-21G-CPU-72P: Fixes this cart's EXP information based on the newest findings.

08:3008:30, 11 August 2022 diff hist +265‎ EXP pins ‎ The N8 Pro supposedly can use all the EXP pins (connected directly to the FPGA), though I don't have specific details yet.
00:4100:41, 11 August 2022 diff hist +38‎ Cartridge connector ‎ →‎Pinout of 72-pin NES consoles and cartridges: Adds NES cartridge orientation.

21:2321:23, 10 August 2022 diff hist +1,008‎ EXP pins ‎ More PowerPak pins.
12:1512:15, 10 August 2022 diff hist +6‎ Extended NES I/O ‎ →‎J3: ENIO CPU Board Header (26-pin R/A IDC): Adds R/W and /CE CPU board EXP inputs. current
12:0012:00, 10 August 2022 diff hist +23‎ Extended NES I/O ‎ →‎Direct Addressing Mode: Adds EXP pins for ENIO direct addressing mode.
11:5811:58, 10 August 2022 diff hist +26‎ EXP pins ‎ →‎Extended NES I/O (ENIO): Adds ENIO EXP pin info from forum post 98696. Fixes direction of unknown pins to be unknown.
09:4109:41, 10 August 2022 diff hist +9,932‎ N EXP pins ‎ Adds a page detailing known uses of the NES' EXP pins. This is not yet comprehensive.

09:5609:56, 4 August 2022 diff hist −13‎ m Extended NES I/O ‎ Moves notes out of the pinouts for proper wrapping.

16:3616:36, 25 July 2022 diff hist +18‎ Coconuts Japan Pachinko Controller ‎ Adds Pachio Kun 3 to list of compatible games. Tag: Reverted

11:4411:44, 20 July 2022 diff hist +85‎ m FamicomBox ‎ Adds link to standard NES cartridge connector by the FamicomBox cartridge connector pinout.

04:2504:25, 10 July 2022 diff hist +887‎ MMC1 pinout ‎ Adds 2ME MMC1 pinout. current
04:1404:14, 10 July 2022 diff hist +426‎ NES 2.0 submappers ‎ →‎001: MMC1: Adds MMC1 submapper 6 for 2ME board.
04:0404:04, 10 July 2022 diff hist +3,000‎ MMC1 ‎ Adds FCNS 2ME board as MMC1 submapper 6.

23:4323:43, 8 July 2022 diff hist +12‎ m MMC1 ‎ Adds horizontal lines between variants for clarity.

22:0722:07, 7 July 2022 diff hist +4‎ m NES 2.0 ‎ →‎Extended Console Type: Changes Famicom Network System to a link.

10:2610:26, 6 July 2022 diff hist +32‎ NES 2.0 ‎ →‎Extended Console Type: Adds Famicom Network System as a console type for FCNS software cartridges. FCNS ROMs should specify no CHR.

08:4208:42, 14 June 2022 diff hist +10‎ m FamicomBox ‎ Clarify what kind of slots the system has.

09:4809:48, 10 June 2022 diff hist −46‎ PPU registers ‎ →‎Status ($2002): Improves open bus bits description.

04:0604:06, 8 June 2022 diff hist +25‎ FamicomBox ‎ Adds model numbers.

10:5210:52, 5 June 2022 diff hist +335‎ FamicomBox ‎ Adds coin box power connector info.

01:0001:00, 3 June 2022 diff hist 0‎ m Nintendo header ‎ Fixes typo.

02:1802:18, 29 May 2022 diff hist −13‎ Nesdev Wiki ‎ Fixes top banner width. (Thanks to brizzo for fix)
01:2501:25, 29 May 2022 diff hist +404‎ Nesdev Wiki ‎ →‎Current news: SNESdev wiki launch, account creation reenabled.

23:5123:51, 25 May 2022 diff hist +6‎ m Demo Vision ‎ Bold 'Demo Boy II'.
21:5421:54, 25 May 2022 diff hist +254‎ Demo Vision ‎ Notes specific observed hardware configurations.
21:2421:24, 25 May 2022 diff hist +289‎ Demo Vision ‎ Adds new findings from seijurou's PCB images.

08:2008:20, 15 May 2022 diff hist +45‎ FamicomBox ‎ Notes that the RF modulator has a pulldown on its TV/GAME input.

12:4312:43, 11 May 2022 diff hist −430‎ m FamicomBox ‎ Improves internal links (now explicitly same-page).
12:3812:38, 11 May 2022 diff hist +792‎ FamicomBox ‎ More information on coin timer pins.
04:2604:26, 11 May 2022 diff hist +107‎ FamicomBox ‎ Notes exactly what occurs upon reset.

01:2301:23, 4 May 2022 diff hist +64‎ FamicomBox ‎ Formatting and naming fixes. Coin LED correction. DIP switch 10 clarification.
01:1501:15, 4 May 2022 diff hist +24‎ N FamicomStation ‎ Adds FamicomStation -> FamicomBox redirect. current Tag: New redirect

02:0602:06, 1 May 2022 diff hist +3,874‎ N Demo Vision ‎ Adds initial Demo Vision findings (likely enough for decent emulation).

05:3805:38, 30 April 2022 diff hist +2,878‎ Licensee codes ‎ Adds more licensee codes and fixes a few bad codes. current
02:0702:07, 30 April 2022 diff hist +9,190‎ FamicomBox ‎ Adds a new features section, containing new and relocated content. Adds references to these sections elsewhere. Adds CATV pin descriptions. Adds PPU /RD and /WR to cartridge compatibility section.

01:1201:12, 29 April 2022 diff hist +569‎ CIC lockout chip ‎ Adds two-wire CIC disable method. current

05:5305:53, 27 April 2022 diff hist +29‎ N Talk:CPU pin out and signal description ‎ Fiskbit moved page Talk:CPU pin out and signal description to Talk:CPU pinout: Changes page name to fit the format of other pinout pages. current Tag: New redirect
05:5305:53, 27 April 2022 diff hist 0‎ m Talk:CPU pinout ‎ Fiskbit moved page Talk:CPU pin out and signal description to Talk:CPU pinout: Changes page name to fit the format of other pinout pages. current
05:5305:53, 27 April 2022 diff hist +24‎ N CPU pin out and signal description ‎ Fiskbit moved page CPU pin out and signal description to CPU pinout: Changes page name to fit the format of other pinout pages. current Tag: New redirect
05:5305:53, 27 April 2022 diff hist 0‎ m CPU pinout ‎ Fiskbit moved page CPU pin out and signal description to CPU pinout: Changes page name to fit the format of other pinout pages.
05:5305:53, 27 April 2022 diff hist +29‎ N Talk:PPU pin out and signal description ‎ Fiskbit moved page Talk:PPU pin out and signal description to Talk:PPU pinout: Changes page name to fit the format of other pinout pages. current Tag: New redirect
05:5305:53, 27 April 2022 diff hist 0‎ m Talk:PPU pinout ‎ Fiskbit moved page Talk:PPU pin out and signal description to Talk:PPU pinout: Changes page name to fit the format of other pinout pages. current
05:5305:53, 27 April 2022 diff hist +24‎ N PPU pin out and signal description ‎ Fiskbit moved page PPU pin out and signal description to PPU pinout: Changes page name to fit the format of other pinout pages. current Tag: New redirect
05:5305:53, 27 April 2022 diff hist 0‎ m PPU pinout ‎ Fiskbit moved page PPU pin out and signal description to PPU pinout: Changes page name to fit the format of other pinout pages.

01:0801:08, 23 April 2022 diff hist −7‎ MediaWiki:Sidebar ‎ Shorten 'NESdev Discord invite' to prevent wrapping. current

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