User contributions for Fiskbit

1 June 2024

• 09:3909:39, 1 June 2024 diff hist +54‎ Status flags ‎ Minor clarifications and additional detail.
• 08:4108:41, 1 June 2024 diff hist +146‎ Status flags ‎ →‎I: Interrupt Disable: Clarifies that this only inhibits IRQ interrupts. Notes that all types of interrupt (NMI and reset, not just IRQ) set I. Clarifies that the immediate handling of an IRQ after clearing I may have a 1 instruction delay for some causes.

27 May 2024

• 21:3321:33, 27 May 2024 diff hist −27‎ m FDS disk format ‎ Removes link to defunct 'price' field (now called 'disk version'). It's not clear how disk rewrite count would be related to disk version. current

26 May 2024

• 14:3314:33, 26 May 2024 diff hist −20‎ PPU registers ‎ →‎Data ($2007) read/write: Removes a link to the "Reading 2007 during rendering" because this page is impenetrable to most the people who will be reading this. Cleans up the PPU scrolling link.
• 13:4413:44, 26 May 2024 diff hist 0‎ PPU scrolling ‎ Moves $2007 behavior up with the other registers, because it was easy to miss. Removes some weird indentation. Adds some horizontal lines to help break things up a bit. (This page needs some more involved improvements in the future.)

24 May 2024

• 05:2005:20, 24 May 2024 diff hist +876‎ PPU pinout ‎ Adds an RGB PPU pinout, makes the page fit the modern formatting a bit better, adds a little more detail. current

5 May 2024

• 02:0802:08, 5 May 2024 diff hist +28‎ m Standard controller ‎ →‎PAL: Fixes pinout link.

14 April 2024

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

6 April 2024

• 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

27 March 2024

• 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

25 March 2024

• 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.

18 March 2024

• 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.
• 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.

17 March 2024

• 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 March 2024

• 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.
• 15:0315:03, 15 March 2024 diff hist +237‎ DMA ‎ Adds more information to the summary table and rewords some points for clarity.

8 March 2024

• 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.

5 March 2024

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

21 February 2024

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

9 February 2024

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

3 February 2024

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

26 January 2024

• 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.

25 January 2024

• 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.

20 January 2024

• 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.

19 January 2024

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

18 January 2024

• 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.
• 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.
• 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.
• 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

17 January 2024

• 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