User contributions for Ulfalizer

1 June 2013

• 14:1714:17, 1 June 2013 diff hist +1‎ Visual circuit tutorial ‎ Left off a '/' in the adder truth table
• 14:1614:16, 1 June 2013 diff hist −101‎ Visual circuit tutorial ‎ Tableify adder truth table
• 14:0214:02, 1 June 2013 diff hist +2,113‎ Visual circuit tutorial ‎ Add sections on adders and barrel shifters (still need to fix table)
• 13:5113:51, 1 June 2013 diff hist +50‎ N File:Vis barrel shifter.png ‎ Barrel shifter for Visual 6502/2C02/2A03 tutorial. current
• 13:5113:51, 1 June 2013 diff hist +41‎ N File:Vis adder.png ‎ Adder for Visual 6502/2C02/2A03 tutorial.
• 07:1907:19, 1 June 2013 diff hist +1‎ m Visual circuit tutorial ‎No edit summary
• 07:1807:18, 1 June 2013 diff hist +457‎ Visual circuit tutorial ‎ Mention depletion and enhancement mode
• 06:0706:07, 1 June 2013 diff hist +359‎ Visual circuit tutorial ‎ Explain open/closed terminology ambiguity
• 05:4405:44, 1 June 2013 diff hist +104‎ Talk:Visual circuit tutorial ‎ Add "high" as a terminology option
• 05:2205:22, 1 June 2013 diff hist +810‎ Talk:Visual circuit tutorial ‎ Terminology

31 May 2013

• 13:2713:27, 31 May 2013 diff hist −496‎ Visual circuit tutorial ‎ Not really sure about the enhancement/depletion etymology now, and shouldn't guess. Maybe it belongs in the 'terms' section too...
• 13:0313:03, 31 May 2013 diff hist −4‎ m Visual circuit tutorial ‎No edit summary
• 13:0013:00, 31 May 2013 diff hist −142‎ Visual circuit tutorial ‎ Depletion-mode description was likely incorrect
• 11:2011:20, 31 May 2013 diff hist +90‎ Visual circuit tutorial ‎ Depletion-mode transistors are only relevant for power sources
• 11:1611:16, 31 May 2013 diff hist +89‎ Visual circuit tutorial ‎ The low-level details of power sources aren't simulated
• 11:0611:06, 31 May 2013 diff hist +463‎ Visual circuit tutorial ‎ Explain enhancement and depletion mode transistors
• 10:1510:15, 31 May 2013 diff hist +34‎ Visual circuit tutorial ‎ Row lines are sometimes called "word lines"
• 09:3709:37, 31 May 2013 diff hist +18‎ Visual circuit tutorial ‎ Boldface pclk0 in DRAM refresh section
• 09:1409:14, 31 May 2013 diff hist +130‎ Talk:Visual circuit tutorial ‎ Switched back meaning of "open" and "closed"
• 08:5808:58, 31 May 2013 diff hist −249‎ Visual circuit tutorial ‎ Undo revision 6558 by Ulfalizer (talk) (Not so sure anymore... wait a bit. See talk page.)
• 08:5608:56, 31 May 2013 diff hist +345‎ Talk:Visual circuit tutorial ‎ "Open" and "closed"
• 08:3808:38, 31 May 2013 diff hist +249‎ Visual circuit tutorial ‎ Switch "open" and "closed" terminology for gates; feedback from http://forum.6502.org/viewtopic.php?f=1&t=2522
• 07:1307:13, 31 May 2013 diff hist +356‎ Talk:Visual circuit tutorial ‎ Add link to SVGs
• 02:2802:28, 31 May 2013 diff hist +279‎ Talk:Visual circuit tutorial ‎ Circuit labels

30 May 2013

• 16:4716:47, 30 May 2013 diff hist −1‎ Visual circuit tutorial ‎ Make PLA section less paragraphy
• 15:2715:27, 30 May 2013 diff hist 0‎ File:Vid sram.png ‎ Ulfalizer uploaded a new version of "File:Vid sram.png": pngcrush'd the image.
• 15:2415:24, 30 May 2013 diff hist 0‎ File:Vis addr pla.png ‎ Ulfalizer uploaded a new version of "File:Vis addr pla.png": pngcrush'd the image. current
• 15:2215:22, 30 May 2013 diff hist 0‎ File:Vis len pla zoom.png ‎ Ulfalizer uploaded a new version of "File:Vis len pla zoom.png": pngcrush'd the image.
• 15:2115:21, 30 May 2013 diff hist 0‎ File:Vis da conversion.png ‎ Ulfalizer uploaded a new version of "File:Vis da conversion.png": pngcrush'd the image.
• 15:1915:19, 30 May 2013 diff hist 0‎ File:Vis len pla.png ‎ Ulfalizer uploaded a new version of "File:Vis len pla.png": Gah... uploaded the wrong image
• 15:1715:17, 30 May 2013 diff hist 0‎ File:Vis len pla.png ‎ Ulfalizer uploaded a new version of "File:Vis len pla.png": pngcrush'd the image.
• 15:1515:15, 30 May 2013 diff hist 0‎ File:Vis areas.png ‎ Ulfalizer uploaded a new version of "File:Vis areas.png": pngcrush'd the image.
• 13:4313:43, 30 May 2013 diff hist −815‎ Talk:Power Pad ‎ De-spam
• 13:2213:22, 30 May 2013 diff hist 0‎ m Visual circuit tutorial ‎No edit summary
• 13:2013:20, 30 May 2013 diff hist +58‎ Visual circuit tutorial ‎ (Hopefully) improve styling in PLA section
• 13:0613:06, 30 May 2013 diff hist +24‎ Visual circuit tutorial ‎ Tableify index-to-length map
• 12:5212:52, 30 May 2013 diff hist +3,349‎ Visual circuit tutorial ‎ Add section on PLAs (still a bit rough)
• 12:2412:24, 30 May 2013 diff hist +55‎ N File:Vis addr pla.png ‎ Address decoder PLA for Visual 6502/2C02/2A03 tutorial.
• 12:2312:23, 30 May 2013 diff hist +64‎ N File:Vis len pla zoom.png ‎ Zoomed-in length counter PLA for Visual 6502/2C02/2A03 tutorial.
• 12:2212:22, 30 May 2013 diff hist +54‎ N File:Vis len pla.png ‎ Length counter PLA for Visual 6502/2C02/2A03 tutorial.
• 07:4707:47, 30 May 2013 diff hist −18‎ APU Length Counter ‎ Only need to mention the approximations for base length 10
• 07:4407:44, 30 May 2013 diff hist +22‎ APU Length Counter ‎ MSB selects note base length
• 07:3707:37, 30 May 2013 diff hist −116‎ APU Length Counter ‎ No longer guesses... :P
• 07:3607:36, 30 May 2013 diff hist +10‎ APU Length Counter ‎ Reformat table a bit
• 04:0504:05, 30 May 2013 diff hist 0‎ APU Length Counter ‎ Inconsistent arrow format
• 03:3503:35, 30 May 2013 diff hist −3‎ m APU Length Counter ‎No edit summary
• 03:3103:31, 30 May 2013 diff hist +76‎ APU Length Counter ‎ Point out the different regions of the table
• 02:5602:56, 30 May 2013 diff hist +10‎ APU Length Counter ‎ Clarify legend
• 02:5502:55, 30 May 2013 diff hist +93‎ APU Length Counter ‎ Order is the same as in the internal APU LUT
• 02:5102:51, 30 May 2013 diff hist +157‎ Talk:APU Length Counter ‎ Table interpretation
• 02:4902:49, 30 May 2013 diff hist +1,195‎ APU Length Counter ‎ Explain table structure
• 00:3400:34, 30 May 2013 diff hist +1,104‎ Talk:APU Length Counter ‎ Table structure

29 May 2013

• 08:5208:52, 29 May 2013 diff hist +280‎ Talk:Visual circuit tutorial ‎ Pictures
• 03:0803:08, 29 May 2013 diff hist +6‎ NES reference guide ‎ More specific link name
• 01:1701:17, 29 May 2013 diff hist +42‎ Visual circuit tutorial ‎ Add Wikipedia link for "substrate"
• 00:5500:55, 29 May 2013 diff hist +1‎ m Visual circuit tutorial ‎ Grammar fixes
• 00:5000:50, 29 May 2013 diff hist +5‎ m Visual circuit tutorial ‎No edit summary
• 00:2800:28, 29 May 2013 diff hist +11‎ Visual circuit tutorial ‎ Add terms section link for "NMOS"

28 May 2013

• 23:3823:38, 28 May 2013 diff hist +5‎ m Visual circuit tutorial ‎No edit summary
• 23:3623:36, 28 May 2013 diff hist +43‎ Visual circuit tutorial ‎ Add small note about alignment for the palette SRAM cells
• 23:3523:35, 28 May 2013 diff hist +377‎ Visual circuit tutorial ‎ Add SRAM section
• 23:2723:27, 28 May 2013 diff hist +46‎ N File:Vid sram.png ‎ SRAM cells for Visual 6502/2C02/2A03 tutorial.
• 23:2523:25, 28 May 2013 diff hist +25‎ Visual circuit tutorial ‎ Linkify first mention of Visual 6502
• 22:5022:50, 28 May 2013 diff hist +2,470‎ Visual circuit tutorial ‎ Complete DRAM description
• 12:0512:05, 28 May 2013 diff hist +70‎ m Visual circuit tutorial ‎No edit summary
• 12:0012:00, 28 May 2013 diff hist +1‎ m Visual circuit tutorial ‎No edit summary
• 11:4111:41, 28 May 2013 diff hist +45‎ m Talk:Visual circuit tutorial ‎No edit summary
• 11:4111:41, 28 May 2013 diff hist +362‎ Talk:Visual circuit tutorial ‎ Picture-heavy
• 11:3211:32, 28 May 2013 diff hist +824‎ Visual circuit tutorial ‎ Save work in progress on DRAM to not lose it
• 11:1211:12, 28 May 2013 diff hist +52‎ N File:Vis oam left.png ‎ Left side of OAM for Visual 6502/2C02/2A03 tutorial. current
• 11:1111:11, 28 May 2013 diff hist +53‎ N File:Vis oam right.png ‎ Right side of OAM for Visual 6502/2C02/2A03 tutorial. current
• 11:0911:09, 28 May 2013 diff hist +45‎ N File:Vis dram cell.png ‎ DRAM cell for Visual 6502/2C02/2A03 tutorial.
• 11:0411:04, 28 May 2013 diff hist +46‎ Visual circuit tutorial ‎ Add links to APU clocks section for 'apu_clk1'
• 07:0307:03, 28 May 2013 diff hist +294‎ Talk:Visual circuit tutorial ‎No edit summary
• 05:5605:56, 28 May 2013 diff hist +19‎ m Talk:Visual circuit tutorial ‎No edit summary
• 05:4905:49, 28 May 2013 diff hist −3‎ m Talk:Visual circuit tutorial ‎No edit summary
• 05:4805:48, 28 May 2013 diff hist +67‎ m Talk:Visual circuit tutorial ‎ (Possibly) clarify some more what confuses me :)
• 05:4305:43, 28 May 2013 diff hist +20‎ m Talk:Visual circuit tutorial ‎No edit summary
• 05:4305:43, 28 May 2013 diff hist +410‎ Talk:Visual circuit tutorial ‎ Possible NMOS clarifications
• 05:0605:06, 28 May 2013 diff hist +186‎ Visual circuit tutorial ‎ Transistors can be selected separately
• 03:2003:20, 28 May 2013 diff hist +30‎ m Visual circuit tutorial ‎No edit summary

27 May 2013

• 22:4222:42, 27 May 2013 diff hist +6‎ m Visual circuit tutorial ‎No edit summary
• 21:4721:47, 27 May 2013 diff hist +106‎ Visual circuit tutorial ‎ Clarify how pclk0 and pclk1 correspond to phases
• 07:4007:40, 27 May 2013 diff hist +288‎ Visual circuit tutorial ‎ Add tip on getting rid of highlighting
• 07:2807:28, 27 May 2013 diff hist +38‎ Visual circuit tutorial ‎ Add Wikipedia link for "passivation"
• 03:5703:57, 27 May 2013 diff hist 0‎ Visual circuit tutorial ‎ Use "pad" instead of "pin" for the internal version
• 03:5603:56, 27 May 2013 diff hist +179‎ Visual circuit tutorial ‎ Add definition for "bond wire"
• 03:4303:43, 27 May 2013 diff hist +58‎ PPU ‎ Add link to frame timing diagram
• 03:4103:41, 27 May 2013 diff hist +98‎ Visual 2C02 ‎ Add link to PPU timing diagram
• 02:5602:56, 27 May 2013 diff hist 0‎ m Visual circuit tutorial ‎No edit summary
• 02:3402:34, 27 May 2013 diff hist +672‎ Visual circuit tutorial ‎ Add description of the video DAC
• 02:2402:24, 27 May 2013 diff hist +45‎ N File:Vis vid dac.png ‎ Video DAC for Visual 6502/2C02/2A03 tutorial.
• 02:0502:05, 27 May 2013 diff hist +2‎ Visual circuit tutorial ‎ Ops... s/resistor/transistor/
• 01:5901:59, 27 May 2013 diff hist +85‎ Visual circuit tutorial ‎ Add "pull-down resistor" to terms
• 01:5701:57, 27 May 2013 diff hist +378‎ Visual circuit tutorial ‎ Add description of output drivers
• 01:5001:50, 27 May 2013 diff hist +49‎ N File:Vis output driver.png ‎ Output driver for Visual 6502/2C02/2A03 tutorial.
• 01:1601:16, 27 May 2013 diff hist +12‎ m Visual circuit tutorial ‎No edit summary
• 01:1301:13, 27 May 2013 diff hist +304‎ Visual circuit tutorial ‎ Add information on PPU clocks

26 May 2013

• 22:3622:36, 26 May 2013 diff hist +72‎ m Visual circuit tutorial ‎ Minor formatting changes
• 21:4321:43, 26 May 2013 diff hist +4‎ m Visual circuit tutorial ‎No edit summary
• 19:2319:23, 26 May 2013 diff hist +4‎ m Visual circuit tutorial ‎No edit summary
• 18:2918:29, 26 May 2013 diff hist −13‎ m Visual circuit tutorial ‎ "half-cycle" only needs to be explained once
• 18:1618:16, 26 May 2013 diff hist −31‎ CPU pinout ‎ Remove inline description of "duty cycle" and add glossary link instead
• 18:1518:15, 26 May 2013 diff hist −30‎ Visual circuit tutorial ‎ Add glossary link for "duty cycle"
• 18:1418:14, 26 May 2013 diff hist +195‎ Glossary ‎No edit summary
• 17:0817:08, 26 May 2013 diff hist +2‎ m Visual circuit tutorial ‎No edit summary
• 16:5516:55, 26 May 2013 diff hist +1,217‎ Visual circuit tutorial ‎ Add information on clock signals (work in progress)

25 May 2013

• 16:0216:02, 25 May 2013 diff hist +6‎ m Visual circuit tutorial ‎No edit summary
• 15:5415:54, 25 May 2013 diff hist −288‎ Hardware misc ‎ Replace with redirect to 'NES reference guide' current
• 15:5215:52, 25 May 2013 diff hist +161‎ NES reference guide ‎ Merge in the 'Hardware misc' page. It's just a few links anyway.
• 15:1215:12, 25 May 2013 diff hist +360‎ N Talk:Hardware misc ‎ Created page with "Thinking of merging this into the main reference page, perhaps under a "miscellaneous" sublist. It's a very small number of links, and IMO a separate p..."
• 14:5814:58, 25 May 2013 diff hist +11‎ m Visual circuit tutorial ‎ Add link to terms section for "NMOS"
• 14:4914:49, 25 May 2013 diff hist 0‎ m 6502 instructions ‎No edit summary
• 14:4514:45, 25 May 2013 diff hist +116‎ 6502 instructions ‎ Add link to Visual circuit tutorial
• 14:4114:41, 25 May 2013 diff hist +89‎ Hardware misc ‎ Add link to visual circuit tutorial
• 14:3814:38, 25 May 2013 diff hist +162‎ Visual 2C02 ‎ Add link to visual circuit tutorial
• 03:3303:33, 25 May 2013 diff hist +6‎ m Visual circuit tutorial ‎No edit summary
• 03:3103:31, 25 May 2013 diff hist +666‎ Visual circuit tutorial ‎ Add DA conversion and cut-off connection examples
• 03:1303:13, 25 May 2013 diff hist +56‎ N File:Vis cutoff.png ‎ "Cut-off" poly strip for Visual 6502/2C02/2A03 tutorial.
• 03:1203:12, 25 May 2013 diff hist +60‎ N File:Vis da conversion.png ‎ D/A conversion circuitry for Visual 6502/2C02/2A03 tutorial.
• 00:4700:47, 25 May 2013 diff hist −11‎ Visual circuit tutorial ‎ Oh, wait, it wasn't...
• 00:4500:45, 25 May 2013 diff hist +11‎ Visual circuit tutorial ‎ NOR interpretation was off
• 00:4400:44, 25 May 2013 diff hist +337‎ Visual circuit tutorial ‎ Use the term SR latch and add the NOR interpretation
• 00:1900:19, 25 May 2013 diff hist +84‎ Visual circuit tutorial ‎ Nodes can also be traced by numeric ID
• 00:0900:09, 25 May 2013 diff hist +33‎ Visual circuit tutorial ‎ Polysilicon is often shortened to just "poly"

24 May 2013

• 23:0623:06, 24 May 2013 diff hist −8‎ Visual circuit tutorial ‎ Fix bullet list format
• 19:3319:33, 24 May 2013 diff hist +14‎ m Visual circuit tutorial ‎No edit summary
• 19:2919:29, 24 May 2013 diff hist +396‎ Visual circuit tutorial ‎ Add tip on downloading a local copy
• 19:0119:01, 24 May 2013 diff hist 0‎ Visual circuit tutorial ‎ top<->bottom
• 19:0019:00, 24 May 2013 diff hist +476‎ Visual circuit tutorial ‎ Add information on the layers that make up the chip
• 18:5418:54, 24 May 2013 diff hist +13‎ Visual circuit tutorial ‎ s/VBL/VBlank/
• 18:5318:53, 24 May 2013 diff hist +117‎ Visual circuit tutorial ‎ _db7 connection might've been a bit unclear
• 18:4518:45, 24 May 2013 diff hist +1‎ m Visual circuit tutorial ‎No edit summary
• 18:3718:37, 24 May 2013 diff hist +487‎ Visual circuit tutorial ‎ Add NMOS to terms section
• 18:2618:26, 24 May 2013 diff hist −1‎ m Visual circuit tutorial ‎No edit summary
• 18:2518:25, 24 May 2013 diff hist +134‎ Visual circuit tutorial ‎ Add 'burried contact' and 'via' to terms section
• 18:2318:23, 24 May 2013 diff hist 0‎ Visual circuit tutorial ‎ Sort terms alphabetically
• 18:2118:21, 24 May 2013 diff hist +119‎ Visual circuit tutorial ‎ Clarify that w400e lets through a data bus bit
• 18:1118:11, 24 May 2013 diff hist +2‎ m Visual circuit tutorial ‎No edit summary
• 18:1018:10, 24 May 2013 diff hist +6‎ m Visual circuit tutorial ‎No edit summary
• 18:0818:08, 24 May 2013 diff hist +45‎ Visual circuit tutorial ‎ Misc. polishing
• 17:5817:58, 24 May 2013 diff hist +302‎ Visual circuit tutorial ‎ Ditto
• 17:4417:44, 24 May 2013 diff hist +6,813‎ N Visual circuit tutorial ‎ WIP - just so that I don't lose edits so far by accident
• 17:2917:29, 24 May 2013 diff hist +68‎ N File:Vis vblbuf.png ‎ Wire capacitance storage element for Visual 6502/2C02/2A03 tutorial.
• 17:2817:28, 24 May 2013 diff hist +46‎ N File:Vis transistor.png ‎ Transistor for Visual 6502/2C02/2A03 tutorial.
• 17:2817:28, 24 May 2013 diff hist +48‎ N File:Vis power.png ‎ Powered node for Visual 6502/2C02/2A03 tutorial.
• 17:2717:27, 24 May 2013 diff hist +44‎ N File:Vis nor.png ‎ Nor gate for Visual 6502/2C02/2A03 tutorial.
• 17:2617:26, 24 May 2013 diff hist +44‎ N File:Vis inverter.png ‎ Inverter for Visual 6502/2C02/2A03 tutorial.
• 17:2617:26, 24 May 2013 diff hist +64‎ N File:Vis crossreg.png ‎ Cross-coupled inverter latch for Visual 6502/2C02/2A03 tutorial.
• 17:2517:25, 24 May 2013 diff hist +47‎ N File:Vis clockedreg.png ‎ Clocked reg for Visual 6502/2C02/2A03 tutorial.
• 17:2417:24, 24 May 2013 diff hist +51‎ N File:Vis areas.png ‎ Different areas for Visual 6502/2C02/2A03 tutorial.

23 May 2013

• 05:4605:46, 23 May 2013 diff hist +11‎ APU Triangle ‎ Be more specific about what Mega Man 2 does
• 05:1805:18, 23 May 2013 diff hist +357‎ APU Triangle ‎ Add note about what causes popping sounds in the triangle in some games and how they can be eliminated in an emulator

22 May 2013

• 20:3720:37, 22 May 2013 diff hist +17‎ PPU pinout ‎ Explain AD abbreviation
• 20:3420:34, 22 May 2013 diff hist +99‎ m Talk:PPU pinout ‎ Add qualification :P
• 20:3220:32, 22 May 2013 diff hist +16‎ PPU pinout ‎ Call the control register PPUCTRL and add link to PPU registers page
• 20:2020:20, 22 May 2013 diff hist −2‎ m Talk:PPU pinout ‎ s/inputs/pins/
• 20:1820:18, 22 May 2013 diff hist +450‎ Talk:PPU pinout ‎No edit summary
• 19:4519:45, 22 May 2013 diff hist +60‎ CPU ‎ Add nanoseconds per cycle for the different CPU frequencies
• 18:1818:18, 22 May 2013 diff hist +12‎ m PPU ‎No edit summary
• 18:0418:04, 22 May 2013 diff hist +523‎ Talk:PPU pinout ‎ Rename some pins?
• 17:5917:59, 22 May 2013 diff hist +62‎ PPU pinout ‎ Add link to wiring diagram
• 17:5617:56, 22 May 2013 diff hist +23‎ PPU pinout ‎ Explain ALE abbreviation
• 17:5517:55, 22 May 2013 diff hist +124‎ PPU pinout ‎ Clarify the CPU side of things
• 17:4917:49, 22 May 2013 diff hist +80‎ PPU pinout ‎ /WR does not assert for writes to the palette
• 17:3017:30, 22 May 2013 diff hist −32‎ PPU pinout ‎ ALE doesn't "tell the PPU" - it's an output pin
• 17:2417:24, 22 May 2013 diff hist +87‎ PPU pinout ‎ Add some more ALE details
• 17:1917:19, 22 May 2013 diff hist +55‎ PPU pinout ‎ Add link to 'PPU rendering' for ALE details
• 17:1617:16, 22 May 2013 diff hist +52‎ PPU ‎ Add pinout link
• 13:4613:46, 22 May 2013 diff hist −6‎ 6502 instructions ‎ 'CPU interrupt quirks' was moved to 'CPU interrupts'
• 13:4513:45, 22 May 2013 diff hist −8‎ Emulator tests ‎ 'CPU interrupt quirks' was moved to 'CPU interrupts'
• 13:4413:44, 22 May 2013 diff hist −33‎ CPU pinout ‎ 'CPU interrupt quirks' was moved to 'CPU interrupts'
• 13:4313:43, 22 May 2013 diff hist −6‎ CPU ‎ 'CPU interrupt quirks' was moved to 'CPU interrupts'
• 13:4113:41, 22 May 2013 diff hist 0‎ m Talk:CPU interrupts ‎ Ulfalizer moved page Talk:CPU interrupt quirks to Talk:CPU interrupts: It is about more than just "quirks"
• 13:4113:41, 22 May 2013 diff hist +33‎ N Talk:CPU interrupt quirks ‎ Ulfalizer moved page Talk:CPU interrupt quirks to Talk:CPU interrupts: It is about more than just "quirks" current
• 13:4113:41, 22 May 2013 diff hist +28‎ N CPU interrupt quirks ‎ Ulfalizer moved page CPU interrupt quirks to CPU interrupts: It is about more than just "quirks" current
• 13:4113:41, 22 May 2013 diff hist 0‎ m CPU interrupts ‎ Ulfalizer moved page CPU interrupt quirks to CPU interrupts: It is about more than just "quirks"
• 13:2213:22, 22 May 2013 diff hist +47‎ CPU pinout ‎ Specify that every cycle is either a read or a write cycle
• 13:2013:20, 22 May 2013 diff hist +233‎ CPU pinout ‎ Add some more timing details for Axx, Dx, and R/W (confirmed in Visual 6502)
• 12:5912:59, 22 May 2013 diff hist +500‎ N Talk:CPU interrupts ‎ Add some relevant Visual 6502 links so I don't lose them
• 12:4612:46, 22 May 2013 diff hist +110‎ CPU interrupts ‎ Interrupt polling occurs during φ1 (confirmed in Visual 6502)
• 12:3512:35, 22 May 2013 diff hist +189‎ CPU pinout ‎ Clarify that φ1 and φ2 high denote the first and second phases of each CPU cycle

15 May 2013

• 09:3109:31, 15 May 2013 diff hist −6‎ PPU rendering ‎ s/VRAM data input pins/VRAM data pins/
• 07:0507:05, 15 May 2013 diff hist +32‎ PPU rendering ‎ VRAM addresses are 14 bits long, not 16 bits
• 06:5606:56, 15 May 2013 diff hist +14‎ PPU rendering ‎ VRAM data can also be written by the PPU (on demand from the CPU)
• 06:5106:51, 15 May 2013 diff hist +839‎ PPU rendering ‎ Explain why VRAM reads take two PPU cycles
• 06:0606:06, 15 May 2013 diff hist +1‎ INES Mapper 004 ‎ Link to PPU Rendering instead of directly to the frame timing diagram
• 06:0206:02, 15 May 2013 diff hist +700‎ PPU rendering ‎ Add details on PPU address bus contents (derived from Visual 2C02)

9 May 2013

• 14:4314:43, 9 May 2013 diff hist +115‎ APU DMC ‎ Enumerate things that can affect the counter
• 14:3514:35, 9 May 2013 diff hist +47‎ APU DMC ‎ Clarify that the rate only affects automatic sample playback
• 14:2714:27, 9 May 2013 diff hist +220‎ APU ‎ Add output conditions for the DMC channel

8 May 2013

• 19:5419:54, 8 May 2013 diff hist +208‎ APU DMC ‎ Clarify what the rate value specifies
• 17:1317:13, 8 May 2013 diff hist +3‎ m APU DMC ‎ Fix typo

7 May 2013

• 15:0315:03, 7 May 2013 diff hist +50‎ APU Sweep ‎ Sweep needs to be enabled too to adjust the period :P

6 May 2013

• 14:5614:56, 6 May 2013 diff hist +230‎ APU Sweep ‎ Note that the silencing overflow still happens with a shift count of zero (confirmed in Visual 2A03)
• 13:4313:43, 6 May 2013 diff hist +22‎ APU Pulse ‎ Small sweep clarification
• 12:3012:30, 6 May 2013 diff hist +45‎ APU Pulse ‎ Output conditions were missing timer >= 8
• 12:2412:24, 6 May 2013 diff hist +135‎ APU Triangle ‎ Specify exactly where the waveform clocking happens
• 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