User contributions for Ulfalizer

6 May 2013

• 12:1112:11, 6 May 2013 diff hist +7‎ APU Pulse ‎ Specify exactly where the waveform clocking happens
• 09:3609:36, 6 May 2013 diff hist +289‎ APU Sweep ‎ Clarify that the silencing-even-when-disabled behavior is only relevant for overflow
• 09:0909:09, 6 May 2013 diff hist +88‎ APU Length Counter ‎ Constant volume flag was missing, making it look like the volume/envelope field is 5 bits long. Also make consistent with main page by using 'v' instead of 'e'.
• 09:0209:02, 6 May 2013 diff hist +17‎ APU Length Counter ‎ The triangle halt flag was renamed to linear counter reload flag

5 May 2013

• 14:0314:03, 5 May 2013 diff hist +38‎ APU Sweep ‎ Small silencing clarification
• 13:2213:22, 5 May 2013 diff hist +68‎ APU Envelope ‎ Clarify when the envelope counter decrement occurs
• 12:4312:43, 5 May 2013 diff hist +3‎ m APU Sweep ‎ Add an 'is'
• 12:4012:40, 5 May 2013 diff hist +389‎ APU Sweep ‎ Describe exactly when the period update happens and use the internal version of what's going in instead of the "clocked before reload" version (as it isn't any more complicated)
• 12:1112:11, 5 May 2013 diff hist −4‎ m APU Length Counter ‎ Fix typo
• 09:4909:49, 5 May 2013 diff hist +77‎ APU Sweep ‎ Internally, the target period is calculated continuously by the adder
• 09:2809:28, 5 May 2013 diff hist −99‎ APU Length Counter ‎ Ops... the length counter load values in the table are already adjusted to account for the becomes zero vs. is zero behavior
• 08:3808:38, 5 May 2013 diff hist +50‎ APU Length Counter ‎ Clarify that the clock-when-zero silencing behavior works intuitively with the halt flag too
• 08:1008:10, 5 May 2013 diff hist +10‎ m APU Length Counter ‎ s/APU clock/frame counter clock/
• 08:0708:07, 5 May 2013 diff hist +526‎ APU Length Counter ‎ The length counter period might be off by one if you just compare against zero (confirmed in Visual 2A03)

4 May 2013

• 13:5513:55, 4 May 2013 diff hist +1‎ m APU ‎ s/pulse channel/pulse channels/
• 09:0909:09, 4 May 2013 diff hist +504‎ PPU registers ‎ Use fancy-schmancy line drawing characters
• 08:2708:27, 4 May 2013 diff hist +27‎ m APU ‎ Rephrase pulse silencing exceptions a bit
• 08:1608:16, 4 May 2013 diff hist +50‎ m APU ‎ Clarify that channels play iff length counters > 0 in the abstract model
• 08:1008:10, 4 May 2013 diff hist +556‎ APU ‎ Add an overview of when channels will play (bit redundant, but imo justified in this case)
• 07:3307:33, 4 May 2013 diff hist 0‎ m APU Envelope ‎ Missed an s/N/V/
• 07:3007:30, 4 May 2013 diff hist +34‎ APU Envelope ‎ Use V to denote volume/envelope bits to be consistent with main page
• 07:1607:16, 4 May 2013 diff hist +153‎ APU Envelope ‎ Clarify that the constant volume flag only selects the volume source (verified in Visual 2A03)
• 06:2506:25, 4 May 2013 diff hist 0‎ m APU Pulse ‎ Linkify first instead of second mention of envelope
• 06:1806:18, 4 May 2013 diff hist +54‎ APU Noise ‎ Constant volume flag was missing, making it look like the volume/envelope field is 5 bits long. Also make consistent with main page by using 'v' instead of 'e'.
• 06:1406:14, 4 May 2013 diff hist 0‎ APU ‎ Bit field for noise volume/envelope used N while legend used V. Settle for V for consistency with other channels.
• 06:1206:12, 4 May 2013 diff hist 0‎ APU Pulse ‎ Use v to denote volume/envelope bits to be consistent with main page
• 06:1006:10, 4 May 2013 diff hist +62‎ APU Pulse ‎ Constant volume flag was missing, making it look like the volume/envelope field is 5 bits long
• 06:0406:04, 4 May 2013 diff hist +44‎ APU Pulse ‎ Main page says volume/envelope, so do that here too

3 May 2013

• 11:1111:11, 3 May 2013 diff hist +249‎ APU Triangle ‎ The triangle channel's frequency is not limited like the pulse channels' is (confirmed in http://forums.nesdev.com/viewtopic.php?f=3&t=10056&start=15#p111702)
• 06:2206:22, 3 May 2013 diff hist +61‎ APU Length Counter ‎ Old version made it sound like the silencing was optional too
• 06:1806:18, 3 May 2013 diff hist −9‎ APU ‎ "Length counter halt" is more descriptive than "length counter disable" and consistent with the linked subpages for the channels
• 06:1206:12, 3 May 2013 diff hist −22‎ m APU Envelope ‎ Minor clarifications (iiutc the envelope is always ticking, even in constant volume mode)
• 05:5805:58, 3 May 2013 diff hist +23‎ APU Envelope ‎ Be more specific about what C does
• 05:5505:55, 3 May 2013 diff hist +57‎ APU Envelope ‎ Add Wikipedia link for ADSR
• 05:2505:25, 3 May 2013 diff hist +20‎ APU Triangle ‎ Use "linear counter reload flag" instead of "halt flag" to avoid confusion with the length counter halt flag

2 May 2013

• 02:3002:30, 2 May 2013 diff hist +124‎ APU ‎ Clarify why it's called the "linear" counter
• 01:2201:22, 2 May 2013 diff hist +122‎ APU Triangle ‎ The triangle period timer ticks at the rate of the CPU clock
• 01:1701:17, 2 May 2013 diff hist 0‎ m APU Pulse ‎ s/KHz/kHz/
• 01:0101:01, 2 May 2013 diff hist +229‎ APU Pulse ‎ The pulse channels are silenced when t < 8 (confirmed in Visual 2A03, see http://forums.nesdev.com/viewtopic.php?f=3&t=10056&p=111614#p111614)
• 00:5400:54, 2 May 2013 diff hist +55‎ APU ‎ The pulse channels are silenced when t < 8 (confirmed in Visual 2A03, see http://forums.nesdev.com/viewtopic.php?f=3&t=10056&p=111614#p111614)

30 April 2013

• 03:4003:40, 30 April 2013 diff hist +459‎ Talk:APU Sweep ‎No edit summary

29 April 2013

• 05:3005:30, 29 April 2013 diff hist +705‎ N Talk:APU/current ‎ Created page with "Looking at Visual 2A03 and e.g. the sq0_on and sq0_len nodes, it seems that disabling a channel doesn't touch the length counter at all. Rather, there are internal channel ena..."
• 02:1702:17, 29 April 2013 diff hist +43‎ APU Pulse ‎ Make the timer description be closer to the hw reality
• 01:2601:26, 29 April 2013 diff hist +189‎ Talk:APU Pulse ‎No edit summary
• 00:3500:35, 29 April 2013 diff hist +336‎ N Talk:APU Pulse ‎ Created page with "Is the pulse timer simply clocked by CPU/2 ("APU clock") internally? Looks that way in Visual 2A03 (the timer is only 11 bits wide), only I can't get the timer to count down f..."

28 April 2013

• 04:1004:10, 28 April 2013 diff hist +134‎ PPU sprite evaluation ‎ Break out Notes section and add Visual 2C02 link
• 03:5503:55, 28 April 2013 diff hist +384‎ PPU OAM ‎ Add some more sprite zero internals details

26 April 2013

• 16:2316:23, 26 April 2013 diff hist −126‎ Talk:NTSC video ‎ That's a fair point

23 April 2013

• 13:0213:02, 23 April 2013 diff hist +177‎ Tricky-to-emulate games ‎ Add Marble Madness
• 00:4300:43, 23 April 2013 diff hist +70‎ Visual 2C02 ‎ '-' is actually a delay

22 April 2013

• 21:2821:28, 22 April 2013 diff hist +56‎ PPU registers ‎ Monochrome bit has no effect on writes to the palette (maybe obvious - confirmed in Visual 2C02)
• 01:5001:50, 22 April 2013 diff hist −17‎ PPU registers ‎ Clarify that sprite overflow is broken and not merily complex
• 01:3501:35, 22 April 2013 diff hist −73‎ m PPU sprite priority ‎ Make sentence less run-on

21 April 2013

• 00:1400:14, 21 April 2013 diff hist +40‎ m PPU sprite priority ‎No edit summary
• 00:0000:00, 21 April 2013 diff hist +263‎ PPU sprite priority ‎ Clarify what SMB3 does and why

20 April 2013

• 23:4623:46, 20 April 2013 diff hist −9‎ m PPU sprite evaluation ‎No edit summary
• 23:4523:45, 20 April 2013 diff hist +168‎ PPU sprite evaluation ‎ Clarify sprite overflow bug description
• 17:0317:03, 20 April 2013 diff hist +6‎ m PPU sprite priority ‎No edit summary
• 17:0317:03, 20 April 2013 diff hist +11‎ m PPU sprite priority ‎No edit summary
• 17:0217:02, 20 April 2013 diff hist +645‎ PPU sprite priority ‎ The internals still weren't crystal clear, so adding a new section

18 April 2013

• 16:0516:05, 18 April 2013 diff hist +18‎ m Tricky-to-emulate games ‎No edit summary
• 14:5314:53, 18 April 2013 diff hist +4‎ m PPU sprite evaluation ‎No edit summary
• 14:5114:51, 18 April 2013 diff hist +173‎ PPU sprite evaluation ‎ Break sprite overflow bug into own section and clarify a bit
• 14:2814:28, 18 April 2013 diff hist +262‎ PPU sprite evaluation ‎ Give some more intro and clarify what OAM[n][m] means
• 14:2114:21, 18 April 2013 diff hist +188‎ PPU sprite evaluation ‎ Clarify why overflow is wonky
• 14:1514:15, 18 April 2013 diff hist +12‎ PPU sprite evaluation ‎ Small formatting adjustments
• 14:1314:13, 18 April 2013 diff hist +6‎ PPU sprite evaluation ‎ Indent conditional parts to make the algorithm a bit easier to follow

17 April 2013

• 10:5410:54, 17 April 2013 diff hist +190‎ PPU rendering ‎ The palette latches shift in from the right

15 April 2013

• 10:4910:49, 15 April 2013 diff hist +170‎ INES Mapper 004 ‎ Add link to timing diagram
• 06:0106:01, 15 April 2013 diff hist +170‎ Talk:Input devices ‎No edit summary

14 April 2013

• 10:4010:40, 14 April 2013 diff hist +12‎ Input devices ‎ Mark some details as possibly NES-specific
• 10:3910:39, 14 April 2013 diff hist +197‎ N Talk:Input devices ‎ Created page with "I guess the discussion at the beginning could be NES-specific. Could someone fill in the details for Famicom? -~~~~"
• 09:4909:49, 14 April 2013 diff hist +86‎ Standard controller ‎ Clarify evil details
• 09:3909:39, 14 April 2013 diff hist 0‎ Input devices ‎ "Receives" implies output, so use "connected" instead
• 09:3109:31, 14 April 2013 diff hist +13‎ Standard controller ‎ Link glossary entry for 'strobe'
• 08:0708:07, 14 April 2013 diff hist +39‎ Glossary ‎ Clarify CIRAM entry
• 08:0508:05, 14 April 2013 diff hist +176‎ Glossary ‎ Add 'strobe' entry
• 07:5707:57, 14 April 2013 diff hist +44‎ NES reference guide ‎ Add link to wiring diagram
• 07:5507:55, 14 April 2013 diff hist +81‎ N File:Neswires.jpg ‎ NES wiring diagram (from http://img70.imageshack.us/img70/7050/ntd8bitnes4qk.jpg)
• 07:0507:05, 14 April 2013 diff hist +26‎ Input devices ‎ Make pinout link stand out a bit more
• 07:0207:02, 14 April 2013 diff hist −15‎ Input devices ‎ Rephrase $4016/17/r to be clearer
• 06:5506:55, 14 April 2013 diff hist +531‎ Input devices ‎ Add some pin and signal descriptions for $4016 and $4017
• 06:2006:20, 14 April 2013 diff hist +2‎ m PPU ‎No edit summary
• 06:1806:18, 14 April 2013 diff hist +43‎ CPU pinout ‎ Add link to CPU interrupt quirks page
• 06:1406:14, 14 April 2013 diff hist +191‎ PPU ‎ Add link to the 2C02 technical reference document
• 05:5605:56, 14 April 2013 diff hist +193‎ CPU ‎ Add link to the 2A03 technical reference document
• 05:4805:48, 14 April 2013 diff hist +231‎ CPU pinout ‎ Add duty cycle information for M2
• 04:5304:53, 14 April 2013 diff hist −16‎ CPU interrupts ‎ Rearrange sections to put the hijacking quirk last and reword CLI/SEI/PLP explanation a bit
• 04:4604:46, 14 April 2013 diff hist −48‎ CPU interrupts ‎ No PC increments at all for IRQ/NMI, so reword BRK comparison

12 April 2013

• 15:3215:32, 12 April 2013 diff hist +246‎ Talk:Nesdev Wiki/current ‎No edit summary
• 14:2614:26, 12 April 2013 diff hist −14‎ CPU interrupts ‎ No PC increments at all for IRQ/NMI
• 11:3511:35, 12 April 2013 diff hist +24‎ CPU interrupts ‎ Add I flag set points to tick-by-tick breakdowns
• 05:5605:56, 12 April 2013 diff hist +57‎ CPU ‎ Add note about every cycle being either read or write. Not sure if this is the best spot...
• 05:4805:48, 12 April 2013 diff hist +306‎ N Talk:NES reference guide ‎ Created page with "Maybe a page with links to old docs like YOSHi's could be added, with a warning that they might be inaccurate. Re-reading things in someone else's words helped me at least, ev..."
• 05:4105:41, 12 April 2013 diff hist −85‎ CPU interrupts ‎ Remove link to thread as it isn't really necessary with the added information and also inaccurate about the polling
• 05:3905:39, 12 April 2013 diff hist +338‎ 6502 instructions ‎ Add links to Visual 6502 and Visual 2A03
• 05:3305:33, 12 April 2013 diff hist +390‎ N 6502 instructions ‎ Created page with "Below are some references for the 6502 instruction set: * http://www.obelisk.demon.co.uk/6502/reference.html - Instruction reference with flag behavior and timing * http://us..."
• 05:1005:10, 12 April 2013 diff hist +878‎ CPU interrupts ‎ Add a primer on low-level interrupt behavior and details on the branch instructions
• 03:2503:25, 12 April 2013 diff hist +206‎ CPU interrupts ‎No edit summary
• 02:1702:17, 12 April 2013 diff hist +48‎ CPU interrupts ‎ Update explanation for CLI/SEI/PLP IRQ delay and link to a more relevant post

11 April 2013

• 13:4113:41, 11 April 2013 diff hist +247‎ CPU interrupts ‎ Add explanation for the delayed IRQ behavior
• 13:2513:25, 11 April 2013 diff hist 0‎ m CPU interrupts ‎ Might as well use A for both addresses
• 13:2313:23, 11 April 2013 diff hist −24‎ m CPU interrupts ‎ Not sure if the signal status is actually queried at that point, so just say "determines", as that has been verified down to the tick
• 13:2113:21, 11 April 2013 diff hist +143‎ CPU interrupts ‎ Add link to page on visual6502.org that covers the interrupt hijacking quirk
• 13:1913:19, 11 April 2013 diff hist −154‎ CPU interrupts ‎ Remove some redundancy
• 13:1013:10, 11 April 2013 diff hist +1,018‎ CPU interrupts ‎ Add tick-by-tick execution profiles for IRQ and NMI
• 10:0510:05, 11 April 2013 diff hist +166‎ CPU interrupts ‎ Add note about the B flag
• 09:5509:55, 11 April 2013 diff hist +32‎ Emulator tests ‎ Add link to 'CPU interrupt quirks' page
• 09:5009:50, 11 April 2013 diff hist +6‎ m CPU interrupts ‎ s/IRQ/interrupt/ to be clearer
• 09:4809:48, 11 April 2013 diff hist +31‎ m CPU interrupts ‎No edit summary
• 09:4709:47, 11 April 2013 diff hist −5‎ m CPU interrupts ‎ Reword a bit
• 09:3809:38, 11 April 2013 diff hist +1‎ m CPU interrupts ‎ Fix typo
• 09:3809:38, 11 April 2013 diff hist +159‎ CPU interrupts ‎ Add note on interrupt internals
• 09:3409:34, 11 April 2013 diff hist +33‎ CPU interrupts ‎ Add link to 6502_cpu.txt for instruction cycle breakdown
• 09:2909:29, 11 April 2013 diff hist +169‎ CPU interrupts ‎ Minor rewording and more notes
• 09:2009:20, 11 April 2013 diff hist +27‎ CPU ‎ Link the newly created "CPU interrupt quirks" page
• 09:1909:19, 11 April 2013 diff hist +2,601‎ N CPU interrupts ‎ Created page with "== Interrupt hijacking == The MOS 6502 and by extension the 2A03/07 has a quirk that can cause one type of interrupt to partially hijack another type if they occur very close..."
• 07:5607:56, 11 April 2013 diff hist +196‎ PPU frame timing ‎ Clarify why the suppression behavior occurs

10 April 2013

• 02:5102:51, 10 April 2013 diff hist +250‎ Talk:CPU pinout ‎No edit summary
• 02:4402:44, 10 April 2013 diff hist +63‎ CPU pinout ‎ Make the M2/φ0 connection explicit. (It can be inferred, but I think I would have missed it, so putting it in.)
• 02:2402:24, 10 April 2013 diff hist +349‎ Talk:CPU pinout ‎No edit summary
• 01:0501:05, 10 April 2013 diff hist +379‎ Talk:CPU pinout ‎No edit summary
• 00:2800:28, 10 April 2013 diff hist +190‎ CPU pinout ‎ Clarify that M2 is approximately the internal CPU clock

9 April 2013

• 23:4823:48, 9 April 2013 diff hist +95‎ PPU frame timing ‎ Clarify the timing diagram
• 00:1300:13, 9 April 2013 diff hist +92‎ PPU frame timing ‎ Skipped tick still occurs if sprites are enabled but not bg, so use "rendering" to be clearer

8 April 2013

• 23:4523:45, 8 April 2013 diff hist +412‎ N Talk:PPU frame timing ‎ Created page with "<pre> PPU 29780.7 29780.7 29780.7 29780.7 -C--P-------C--P-------C-P-------CP-------* CPU 29781 29781 29781 29781 * The above synchronizatio..."
• 23:4423:44, 8 April 2013 diff hist +155‎ PPU frame timing ‎ Clarify how the CPU/PPU clock synchronization works
• 23:3223:32, 8 April 2013 diff hist +384‎ PPU frame timing ‎ Clarify the first paragraph of CPU-PPU Clock Alignment

7 April 2013

• 04:0004:00, 7 April 2013 diff hist −96‎ PPU palettes ‎ Make description a bit less awkward. (It's still pretty awkward though.)
• 03:5003:50, 7 April 2013 diff hist +6‎ m PPU palettes ‎No edit summary
• 03:4803:48, 7 April 2013 diff hist +396‎ PPU palettes ‎ Add some internal details related to disabling background and sprite rendering and restructure things a bit
• 03:1303:13, 7 April 2013 diff hist +223‎ PPU palettes ‎ Clarify where the backdrop color is used.
• 02:0202:02, 7 April 2013 diff hist −76‎ PPU OAM ‎ Merge the notes into the description of byte 2

6 April 2013

• 22:0822:08, 6 April 2013 diff hist +377‎ PPU rendering ‎ Clarify rendering and sprite zero timing.
• 17:2117:21, 6 April 2013 diff hist 0‎ File:Ntsc timing.png ‎ Ulfalizer uploaded a new version of "File:Ntsc timing.png": Shifter reload ticks were off by one.
• 17:2017:20, 6 April 2013 diff hist 0‎ File:Ppu.svg ‎ Ulfalizer uploaded a new version of "File:Ppu.svg": Shifter reload ticks were off by one.

5 April 2013

• 23:1423:14, 5 April 2013 diff hist +2,545‎ Talk:PPU rendering ‎No edit summary
• 00:3900:39, 5 April 2013 diff hist +394‎ PPU OAM ‎ Clarify internal operation and timing of DMA.

2 April 2013

• 14:3614:36, 2 April 2013 diff hist +309‎ PPU ‎ Add note on PPU/CPU clocks. I somehow got the idea that the CPU and PPU could "drift" when I was starting out.
• 14:2014:20, 2 April 2013 diff hist +9‎ Game bugs ‎ Fix link to tricky-to-emulate games section
• 14:1814:18, 2 April 2013 diff hist −13‎ PPU sprite priority ‎ Fix link to hard-to-emulate games section for SMB3
• 14:1514:15, 2 April 2013 diff hist +32‎ PPU nametables ‎ Clarify that the CIRAM is not stored inside the PPU but uses its own chip
• 14:0614:06, 2 April 2013 diff hist +10‎ Tricky-to-emulate games ‎ Add reg mnemonic
• 13:5813:58, 2 April 2013 diff hist +75‎ NES reference guide ‎ Add link to Game bugs page
• 13:5513:55, 2 April 2013 diff hist +135‎ Talk:Emulator tests ‎No edit summary
• 13:5513:55, 2 April 2013 diff hist −4,637‎ Emulator tests ‎ Remove hard-to-emulate games section as it has been moved to its own page
• 13:5313:53, 2 April 2013 diff hist +30‎ NES reference guide ‎ Add link to Tricky-to-emulate games page in preparation for moving the section out of Emulator tests
• 13:5013:50, 2 April 2013 diff hist +4,697‎ N Tricky-to-emulate games ‎ Create page in preparation for moving the hard-to-emulate games section

1 April 2013

• 20:2020:20, 1 April 2013 diff hist +270‎ Talk:Emulator tests ‎No edit summary
• 11:4911:49, 1 April 2013 diff hist +136‎ Emulator tests ‎ Clarify Balloon Fight entry
• 11:4311:43, 1 April 2013 diff hist +385‎ Emulator tests ‎ Add Bill & Ted's Excellent Adventure to hard-to-emulate games
• 11:3211:32, 1 April 2013 diff hist +47‎ Emulator tests ‎ Battletoads also requires a decent sprite zero implementation
• 11:2911:29, 1 April 2013 diff hist +31‎ Emulator tests ‎ Rephrase Paperboy entry a bit
• 11:2211:22, 1 April 2013 diff hist +448‎ Emulator tests ‎ Add details on what makes Battletoads tricky
• 11:0411:04, 1 April 2013 diff hist +27‎ PPU ‎ Clarify that tile graphics are for both BG and sprites
• 10:5110:51, 1 April 2013 diff hist +2‎ m PPU palettes ‎ s/a/the/
• 10:5010:50, 1 April 2013 diff hist +202‎ Emulator tests ‎ Rearrange SMB entry so the name comes first and add some links on hard-to-emulate aspects
• 10:4210:42, 1 April 2013 diff hist +329‎ PPU palettes ‎ Clarify why $3F04/$3F08/$3F0C are normally unused and add note on black sky in SMB
• 10:3210:32, 1 April 2013 diff hist +371‎ PPU OAM ‎ Add information on how sprite zero hit detection works internally
• 10:2310:23, 1 April 2013 diff hist +43‎ PPU OAM ‎ Specify where the OAM memory is located.
• 10:1810:18, 1 April 2013 diff hist 0‎ m PPU ‎No edit summary
• 10:1710:17, 1 April 2013 diff hist +40‎ PPU ‎ Clarify roles a bit
• 10:1210:12, 1 April 2013 diff hist +10‎ PPU ‎ Clarify that OAM page is sprite-related
• 09:5209:52, 1 April 2013 diff hist +124‎ PPU ‎ Emphasize importance of Skinny for emulator authors (as it's hidden under "hardware" behaviors)
• 09:4309:43, 1 April 2013 diff hist +191‎ PPU OAM ‎ Linkify some registers

28 March 2013

• 11:0511:05, 28 March 2013 diff hist +295‎ Talk:PPU OAM ‎No edit summary
• 09:3109:31, 28 March 2013 diff hist 0‎ PPU OAM ‎ Rearrange "Internal operation" section slightly
• 09:2809:28, 28 March 2013 diff hist +26‎ PPU OAM ‎ Small internal operation clarification
• 09:2709:27, 28 March 2013 diff hist +374‎ PPU OAM ‎ Add some internal sprite priority details
• 08:5408:54, 28 March 2013 diff hist +11‎ PPU OAM ‎ Minor sprite zero clarifications
• 08:5008:50, 28 March 2013 diff hist +73‎ PPU OAM ‎ Clarify non-bg condition
• 08:4508:45, 28 March 2013 diff hist −4‎ m PPU OAM ‎No edit summary
• 08:3508:35, 28 March 2013 diff hist +18‎ PPU OAM ‎ Rephrase sprite zero section to be a bit less awkward
• 08:3008:30, 28 March 2013 diff hist +5‎ m PPU OAM ‎No edit summary
• 08:2908:29, 28 March 2013 diff hist +618‎ PPU OAM ‎ Add information on sprite zero hits (verified in Visual 2C02)
• 06:3306:33, 28 March 2013 diff hist +374‎ Talk:PPU registers ‎No edit summary

27 March 2013

• 16:2116:21, 27 March 2013 diff hist +275‎ Talk:Visual 2C02 ‎No edit summary current
• 16:1816:18, 27 March 2013 diff hist +44‎ N File:Sprite.png ‎ State for (possible) Visual 2C02 bug report.
• 16:0616:06, 27 March 2013 diff hist 0‎ File:Ntsc timing.png ‎ Ulfalizer uploaded a new version of "File:Ntsc timing.png": Last version had contradictory information on where the first pixel is output in the notes.
• 16:0516:05, 27 March 2013 diff hist 0‎ File:Ppu.svg ‎ Ulfalizer uploaded a new version of "File:Ppu.svg": Last version had contradictory information on where the first pixel is output.
• 15:3115:31, 27 March 2013 diff hist +28‎ PPU registers ‎ Clarify PPUDATA read buffer address range.
• 15:1615:16, 27 March 2013 diff hist +15‎ m Game bugs ‎No edit summary
• 15:1415:14, 27 March 2013 diff hist +3‎ m Game bugs ‎No edit summary
• 15:0815:08, 27 March 2013 diff hist +272‎ Talk:Game bugs ‎No edit summary
• 15:0615:06, 27 March 2013 diff hist +39‎ Game bugs ‎ Rephrase "impossible" controller input section.

26 March 2013

• 04:4104:41, 26 March 2013 diff hist +192‎ Talk:Game bugs ‎No edit summary
• 04:3904:39, 26 March 2013 diff hist +29‎ Game bugs ‎ Preventing impossible controller input could be optional

25 March 2013

• 04:3804:38, 25 March 2013 diff hist +705‎ Game bugs ‎ Add section on left+right/up+down
• 04:1804:18, 25 March 2013 diff hist +1‎ m PPU OAM ‎ Fix typo
• 03:5703:57, 25 March 2013 diff hist +61‎ PPU OAM ‎ Clarify how DMA works
• 03:5303:53, 25 March 2013 diff hist +656‎ PPU OAM ‎ Add an overview of internal OAM operation
• 02:0402:04, 25 March 2013 diff hist +3‎ PPU registers ‎ Linkify PPU memory map and move a paragraph out of 'The PPUDATA read buffer' section
• 00:5900:59, 25 March 2013 diff hist −6‎ m Visual 2C02 ‎ Small formatting changes
• 00:3800:38, 25 March 2013 diff hist +50‎ PPU ‎ Add link to Visual 2C02 page

24 March 2013

• 16:2916:29, 24 March 2013 diff hist −1‎ m Emulator tests ‎No edit summary
• 16:0716:07, 24 March 2013 diff hist +1‎ Visual 2C02 ‎No edit summary
• 16:0516:05, 24 March 2013 diff hist +4,535‎ N Visual 2C02 ‎ Created page with "'''Note: Visual 2C02 and Visual RP2C02 are hosted on a limited uplink, so please avoid e.g. shift-reloading them. Normal reloading should work fine.''' [http://www.qmtpro.com..."
• 15:0715:07, 24 March 2013 diff hist 0‎ N File:Visual 2C02 sections.jpeg ‎No edit summary

23 March 2013

• 10:4910:49, 23 March 2013 diff hist +78‎ PPU registers ‎ No more sprites will be found after the OAM pointer has reached the end of OAM.

22 March 2013

• 04:5304:53, 22 March 2013 diff hist +4‎ PPU registers ‎ Use PPUDATA instead of $2007 to be more consistent with other sections.
• 04:0504:05, 22 March 2013 diff hist +80‎ PPU registers ‎ Clarify how DMA works.
• 03:3403:34, 22 March 2013 diff hist +57‎ PPU registers ‎ OAMADDR obscure behavior clarification.
• 03:2703:27, 22 March 2013 diff hist +8‎ PPU registers ‎ Small clarification of OAMADDR obscure behavior.
• 03:2503:25, 22 March 2013 diff hist +432‎ PPU registers ‎ Add some OAMADDR details that I have verified in Visual 2C02.

21 March 2013

• 06:0506:05, 21 March 2013 diff hist −249‎ PPU registers ‎ Undo revision 5784 by Ulfalizer (talk) (Should wait until the copying behavior has been verified. I can't reproduce it.)
• 04:4904:49, 21 March 2013 diff hist +87‎ Emulator tests ‎ Add Huge Insect to list of hard-to-emulate games.
• 04:4504:45, 21 March 2013 diff hist 0‎ Emulator tests ‎ Arrange hard-to-emulate games alphabetically.
• 04:2604:26, 21 March 2013 diff hist +249‎ PPU registers ‎ Clarify how DMA transfer works and add some obscure details about $2003
• 00:3800:38, 21 March 2013 diff hist 0‎ File:Ppu.svg ‎ Ulfalizer uploaded a new version of "File:Ppu.svg": Fix typo.
• 00:3700:37, 21 March 2013 diff hist 0‎ File:Ntsc timing.png ‎ Ulfalizer uploaded a new version of "File:Ntsc timing.png": Fix typo.
• 00:2600:26, 21 March 2013 diff hist 0‎ File:Ppu.svg ‎ Ulfalizer uploaded a new version of "File:Ppu.svg": Add note about beginning emulator development.
• 00:2400:24, 21 March 2013 diff hist 0‎ File:Ntsc timing.png ‎ Ulfalizer uploaded a new version of "File:Ntsc timing.png": Bleh... last update didn't stick for some reason.
• 00:2000:20, 21 March 2013 diff hist 0‎ File:Ntsc timing.png ‎ Ulfalizer uploaded a new version of "File:Ntsc timing.png": Remove a "not" and update modification date.
• 00:1600:16, 21 March 2013 diff hist 0‎ File:Ntsc timing.png ‎ Ulfalizer uploaded a new version of "File:Ntsc timing.png": Add note about beginning emulator development.

20 March 2013

• 02:4902:49, 20 March 2013 diff hist +223‎ Talk:PPU ‎No edit summary

19 March 2013

• 19:2219:22, 19 March 2013 diff hist +247‎ Talk:INES Mapper 001 ‎No edit summary
• 19:0919:09, 19 March 2013 diff hist +340‎ PPU registers ‎ Clarify EXT input/output.
• 08:1308:13, 19 March 2013 diff hist +127‎ Talk:Standard controller ‎No edit summary
• 07:2207:22, 19 March 2013 diff hist +230‎ Talk:Standard controller ‎No edit summary
• 06:1406:14, 19 March 2013 diff hist +88‎ Talk:INES Mapper 001 ‎No edit summary
• 06:1406:14, 19 March 2013 diff hist +217‎ N Talk:INES Mapper 001 ‎ Created page with "Would it be okay to add a note to Disch's note explaining the "too close together" behavior? Kev says it's due to edge-triggering. The note would clearly indicate that it's a..."
• 06:1006:10, 19 March 2013 diff hist +93‎ PPU registers ‎ Small PPUDATA clarification.
• 05:5605:56, 19 March 2013 diff hist +384‎ PPU registers ‎ Reads from the palette do affect the internal buffer. Also clarify when the internal buffer is updated.
• 05:1105:11, 19 March 2013 diff hist +17‎ Standard controller ‎ Clarify where 0x40 comes from.
• 05:0405:04, 19 March 2013 diff hist +114‎ Emulator tests ‎No edit summary
• 04:5104:51, 19 March 2013 diff hist 0‎ m Standard controller ‎ Rearrange slightly in order of importance.
• 04:5004:50, 19 March 2013 diff hist +260‎ Standard controller ‎ Add note about open bus causing the returned value to not be exactly 0/1.
• 01:1201:12, 19 March 2013 diff hist 0‎ File:Ppu.svg ‎ Ulfalizer uploaded a new version of "File:Ppu.svg": Add timing information for sprite 0 and image drawing.
• 01:1101:11, 19 March 2013 diff hist 0‎ File:Ntsc timing.png ‎ Ulfalizer uploaded a new version of "File:Ntsc timing.png": Add timing information for sprite 0 and image drawing.
• 01:1001:10, 19 March 2013 diff hist −63‎ PPU rendering ‎ The first pixel being output during the idle tick is incorrect.

16 March 2013

• 20:4620:46, 16 March 2013 diff hist −5‎ m Standard controller ‎ Fix small typo.
• 20:4420:44, 16 March 2013 diff hist +301‎ Standard controller ‎No edit summary
• 17:5617:56, 16 March 2013 diff hist +7‎ PPU rendering ‎ Put diagram into its own section.
• 17:4917:49, 16 March 2013 diff hist +44‎ PPU frame timing ‎No edit summary
• 17:4017:40, 16 March 2013 diff hist +131‎ The skinny on NES scrolling ‎ Add link to NTSC PPU SVG timing diagram.
• 17:2817:28, 16 March 2013 diff hist +153‎ PPU registers ‎No edit summary
• 17:2217:22, 16 March 2013 diff hist +306‎ PPU rendering ‎ Add frame timing diagram
• 17:1017:10, 16 March 2013 diff hist +44‎ N File:Ppu.svg ‎ NTSC frame timing diagram (source SVG file).
• 16:5916:59, 16 March 2013 diff hist +26‎ N File:Ntsc timing.png ‎ NTSC frame timing diagram.
• 16:0816:08, 16 March 2013 diff hist +135‎ PPU frame timing ‎ Fix location of skipped tick.
• 15:3615:36, 16 March 2013 diff hist +10‎ m PPU OAM ‎ Make the difference between the NES and SNES vflip modes clearer.
• 15:3515:35, 16 March 2013 diff hist 0‎ PPU OAM ‎ Clarify vflip for 8x16 sprites.
• 15:2915:29, 16 March 2013 diff hist 0‎ m PPU registers ‎ Small grammar fix.
• 15:2515:25, 16 March 2013 diff hist +206‎ PPU registers ‎ Clarify when the vblank/sprite 0/overflow flags are set and cleared.
• 15:1115:11, 16 March 2013 diff hist +1‎ m PPU rendering ‎ Small consistency fix.
• 15:0915:09, 16 March 2013 diff hist +371‎ PPU rendering ‎ Update timings to reflect the latest information gleaned from Visual 2C02 (mostly delaying the fetches by one cycle)
• 00:4500:45, 16 March 2013 diff hist +222‎ Talk:PPU registers ‎No edit summary
• 00:3800:38, 16 March 2013 diff hist +256‎ Talk:PPU rendering ‎No edit summary
• 00:3000:30, 16 March 2013 diff hist +175‎ Talk:PPU ‎No edit summary

18 January 2013

• 04:3004:30, 18 January 2013 diff hist +134‎ N Talk:Emulator tests ‎ Created page with "The http://blargg.parodius.com links are broken (e.g., instr_test-v3.zip). --~~~~"