User contributions for Ulfalizer

17 July 2013

• 20:3120:31, 17 July 2013 diff hist +392‎ PPU registers ‎ Writes to OAMDATA during rendering do not modify memory but do bump OAMADDR in a glitchy way
• 17:4017:40, 17 July 2013 diff hist +180‎ PPU sprite evaluation ‎ Add internal details on the secondary OAM clear
• 16:1916:19, 17 July 2013 diff hist +8‎ m PPU sprite evaluation ‎No edit summary
• 16:1716:17, 17 July 2013 diff hist +1,161‎ PPU sprite evaluation ‎ Add likely explanation for the sprite overflow bug, derived from Visual 2C02

16 July 2013

• 08:3808:38, 16 July 2013 diff hist +5,145‎ User:Ulfalizer ‎ Add signal trace for possible sprite overflow bug explanation

15 July 2013

• 17:4417:44, 15 July 2013 diff hist +232‎ Visual circuit tutorial ‎ The DRAM rows become consecutive if we reverse the row selection bits

14 July 2013

• 15:0615:06, 14 July 2013 diff hist +147‎ Talk:INES ‎ Last 4
• 09:4509:45, 14 July 2013 diff hist +368‎ Talk:INES ‎ Dirty ROM detection

12 July 2013

• 13:0413:04, 12 July 2013 diff hist +125‎ Visual circuit tutorial ‎ Add link to transistor video on YouTube

5 July 2013

• 23:3723:37, 5 July 2013 diff hist 0‎ User:Ulfalizer ‎ Mystery tick for sprite zero should read as 1 if ignoring propagation delays
• 23:0123:01, 5 July 2013 diff hist 0‎ m User:Ulfalizer ‎No edit summary
• 23:0023:00, 5 July 2013 diff hist +1,228‎ User:Ulfalizer ‎ Add timing for sprite zero/overflow flag clearing
• 00:5500:55, 5 July 2013 diff hist +270‎ User:Ulfalizer ‎ Add Visual 6502 IRQ link for reset
• 00:0400:04, 5 July 2013 diff hist +396‎ User:Ulfalizer ‎ Add Visual 6502 IRQ links for interrupt hijacking

4 July 2013

• 22:1222:12, 4 July 2013 diff hist +3‎ m User:Ulfalizer ‎No edit summary
• 22:1222:12, 4 July 2013 diff hist +519‎ User:Ulfalizer ‎ Add Visual 6502 IRQ links for RTI/CLI/SEI/PLP
• 21:0821:08, 4 July 2013 diff hist +401‎ User:Ulfalizer ‎ Add Visual 6502 IRQ links for JMP Absolute/Indirect
• 20:2620:26, 4 July 2013 diff hist +723‎ User:Ulfalizer ‎ Add Visual 6502 IRQ links for branches
• 19:0019:00, 4 July 2013 diff hist +6‎ User:Ulfalizer ‎ Add ~NMIG signal to trace for NMI link

3 July 2013

• 17:2817:28, 3 July 2013 diff hist +6‎ User:Ulfalizer ‎ Add State to NMI link
• 16:1616:16, 3 July 2013 diff hist +25‎ User:Ulfalizer ‎ Add nnT2BR and 646 (some kind of "sampling points for IRQ" signal) to the interrupt links
• 16:0016:00, 3 July 2013 diff hist −88‎ User:Ulfalizer ‎ Correct IRQ sampling location and add conditions
• 15:5115:51, 3 July 2013 diff hist +22‎ User:Ulfalizer ‎ Add IRQP and State to Visual 6502 interrupt links
• 09:2209:22, 3 July 2013 diff hist +66‎ The skinny on NES scrolling ‎ Status of increment bit does not influence what happens for $2007 access during rendering

2 July 2013

• 20:0320:03, 2 July 2013 diff hist −4‎ m Tricky-to-emulate games ‎No edit summary
• 20:0220:02, 2 July 2013 diff hist +9‎ m Tricky-to-emulate games ‎No edit summary
• 12:0212:02, 2 July 2013 diff hist +79‎ Tricky-to-emulate games ‎ Add PPU palettes link for Micro Machines
• 11:5311:53, 2 July 2013 diff hist +14‎ Tricky-to-emulate games ‎ It's cannon balls, not bombs
• 11:5211:52, 2 July 2013 diff hist +298‎ Tricky-to-emulate games ‎ The Young Indiana Jones Chronicles accesses $2007 during rendering
• 11:2211:22, 2 July 2013 diff hist +399‎ PPU registers ‎ Flesh out master/slave mode description
• 10:1510:15, 2 July 2013 diff hist +397‎ Talk:PPU palettes ‎ Background palette hack and output to EXT pins
• 09:5809:58, 2 July 2013 diff hist +227‎ Talk:PPU palettes ‎ Unused palette data and EXT pins
• 08:5108:51, 2 July 2013 diff hist +89‎ Visual circuit tutorial ‎ Link org's PPU analysis too

1 July 2013

• 19:0819:08, 1 July 2013 diff hist +54‎ PPU palettes ‎ Mention chroma and luma
• 14:4514:45, 1 July 2013 diff hist +150‎ PPU palettes ‎ The background palette "hack" is an intentional feature of the PPU

30 June 2013

• 09:2809:28, 30 June 2013 diff hist +8‎ Visual circuit tutorial ‎ Has contributions from more people now, so don't imply I wrote everything

29 June 2013

• 03:4303:43, 29 June 2013 diff hist −5‎ Visual circuit tutorial ‎ Use "zeroth" instead of "bottom-most" since it gets a bit confusing with the bit being at the top of the adder
• 03:3103:31, 29 June 2013 diff hist +18‎ m Visual circuit tutorial ‎ Style tweaks

28 June 2013

• 15:0815:08, 28 June 2013 diff hist +124‎ Visual circuit tutorial ‎ Add link to PPU overview image.
• 15:0315:03, 28 June 2013 diff hist +251‎ Visual circuit tutorial ‎ Add link for extra node names repo.
• 14:4814:48, 28 June 2013 diff hist +41‎ N File:Ppuareas.png ‎ Overview of how the NTSC PPU is laid out. current
• 05:1605:16, 28 June 2013 diff hist +529‎ The skinny on NES scrolling ‎ The story with $2007 access during rendering is more complicated (but also pretty straightforward)
• 02:5202:52, 28 June 2013 diff hist +44‎ PPU power up state ‎ Reset signal only clears loopy's t, not v

27 June 2013

• 18:4918:49, 27 June 2013 diff hist +2‎ PPU power up state ‎ Reset signals sets up an even frame
• 18:3018:30, 27 June 2013 diff hist +33‎ PPU power up state ‎ Internal reset signal also clears the $2007 read buffer
• 18:2318:23, 27 June 2013 diff hist +17‎ PPU power up state ‎ Clarify that dot 1 is the second dot
• 18:1918:19, 27 June 2013 diff hist +22‎ PPU power up state ‎ Fine x scroll is also cleared by the internal reset signal
• 18:1518:15, 27 June 2013 diff hist +396‎ PPU power up state ‎ Fill in details derived from Visual 2C02 for what happens on reset

18 June 2013

• 21:3721:37, 18 June 2013 diff hist +9‎ m Talk:PPU rendering ‎ Wups... wasn't logged in

17 June 2013

• 08:4008:40, 17 June 2013 diff hist +5,034‎ User:Ulfalizer ‎ Add some timing charts so I don't lose them