PPU registers: Revision history

23 April 2012

• curprev 19:1419:14, 23 April 2012‎ Tepples talk contribs‎ 10,256 bytes +74‎ →‎Status ($2002) < read: Sprite 0 will redirect here

22 September 2011

• curprev 20:0720:07, 22 September 2011‎ Doppel talk contribs‎ m 10,182 bytes +398‎ an important note re: sprite 0 hit flag and vertical blank

8 June 2011

• curprev 14:4214:42, 8 June 2011‎ Tepples talk contribs‎ 9,784 bytes +40‎ →‎Controller ($2000) > write: separate nibbles for clarity

21 December 2010

• curprev 13:1813:18, 21 December 2010‎ Tepples talk contribs‎ 9,744 bytes +86‎ →‎Mask ($2001) > write: Thanks, Q. I originally had it there because some people coming from ancient docs with the bits in the wrong order might get confused.

20 December 2010

• curprev 17:3417:34, 20 December 2010‎ Quietust talk contribs‎ 9,658 bytes −55‎ no they don't - they are correct

15 December 2010

• curprev 15:2915:29, 15 December 2010‎ Tepples talk contribs‎ 9,713 bytes +72‎ →‎Mask ($2001) > write: Grayscale affects $2007 readback as well
• curprev 15:2815:28, 15 December 2010‎ Tepples talk contribs‎ 9,641 bytes +514‎ →‎Mask ($2001) > write: Rewrite grayscale section (again), along with hopefully clearer style on some other details
• curprev 05:2205:22, 15 December 2010‎ Koitsu talk contribs‎ m 9,127 bytes +10‎ →‎Mask ($2001) > write

12 August 2010

• curprev 16:0216:02, 12 August 2010‎ Tepples talk contribs‎ 9,117 bytes +100‎ →‎note: Sample code on the BBS

9 June 2010

• curprev 04:2404:24, 9 June 2010‎ Blargg talk contribs‎ m 9,017 bytes +142‎ →‎OAM data ($2004) read/write: best to treat as write-only
• curprev 04:2204:22, 9 June 2010‎ Blargg talk contribs‎ 8,875 bytes +506‎ →‎Note: elaborated $2007 buffering note
• curprev 04:1504:15, 9 June 2010‎ Blargg talk contribs‎ 8,369 bytes +80‎ →‎Controller ($2000) > write: after power/reset, writes ignored for about 30000 cycles.

27 May 2010

• curprev 21:0221:02, 27 May 2010‎ Austere talk contribs‎ m 8,289 bytes +112‎ →‎Corrected incorrect information

28 March 2010

• curprev 20:3920:39, 28 March 2010‎ Tepples talk contribs‎ 8,177 bytes −395‎ That first paragraph now refers to the more complete documents on initialization

25 March 2010

• curprev 01:3701:37, 25 March 2010‎ Tepples talk contribs‎ 8,572 bytes +286‎ →‎Address ($2006) >> write x2: more explanation of how the VRAM port works for newcomers

21 March 2010

• curprev 17:3217:32, 21 March 2010‎ Eugene Romi talk contribs‎ m 8,286 bytes +12‎ →‎OAM address ($2003) > write: added link to PPU_OAM

19 March 2010

• curprev 20:0720:07, 19 March 2010‎ Tepples talk contribs‎ 8,274 bytes +33‎ →‎Controller ($2000) > write: just in case it wasn't clear

25 January 2010

• curprev 16:1516:15, 25 January 2010‎ Quietust talk contribs‎ m 8,241 bytes 0‎ nitpick: 1F will turn on grayscale, which probably isn't what you intended
• curprev 00:4900:49, 25 January 2010‎ Tokumaru talk contribs‎ 8,241 bytes +105‎ →‎Address ($2006) >> write x2
• curprev 00:4500:45, 25 January 2010‎ Tokumaru talk contribs‎ 8,136 bytes +4‎ →‎Scroll ($2005) >> write x2

24 January 2010

• curprev 13:3913:39, 24 January 2010‎ Tepples talk contribs‎ 8,132 bytes +206‎ →‎Status ($2002) < read: you can leave your sprites behind
• curprev 13:3713:37, 24 January 2010‎ Tepples talk contribs‎ 7,926 bytes +636‎ →‎Mask ($2001) > write: More complete description here
• curprev 09:2509:25, 24 January 2010‎ Tokumaru talk contribs‎ 7,290 bytes −50‎ →‎Scroll ($2005) >> write x2
• curprev 09:2209:22, 24 January 2010‎ Tokumaru talk contribs‎ m 7,340 bytes −1‎ →‎Mask ($2001) > write
• curprev 09:2109:21, 24 January 2010‎ Tokumaru talk contribs‎ m 7,341 bytes 0‎ →‎Address ($2006) >> write x2
• curprev 09:2109:21, 24 January 2010‎ Tokumaru talk contribs‎ 7,341 bytes +521‎ →‎Scroll ($2005) >> write x2

18 January 2010

• curprev 18:1318:13, 18 January 2010‎ Tepples talk contribs‎ m 6,820 bytes +35‎ →‎OAM data ($2004) read/write: clarified my clarification
• curprev 18:1218:12, 18 January 2010‎ Tepples talk contribs‎ 6,785 bytes +66‎ →‎OAM data ($2004) read/write: clarify

11 June 2009

• curprev 13:4713:47, 11 June 2009‎ Ndwiki talk contribs‎ m 6,719 bytes −7‎ No edit summary
• curprev 13:4013:40, 11 June 2009‎ Ndwiki talk contribs‎ m 6,726 bytes −47‎ No edit summary
• curprev 13:2713:27, 11 June 2009‎ Ndwiki talk contribs‎ m 6,773 bytes +71‎ No edit summary
• curprev 13:1913:19, 11 June 2009‎ Ndwiki talk contribs‎ m 6,702 bytes −11‎ →‎Controller ($2000) [write]
• curprev 13:1913:19, 11 June 2009‎ Ndwiki talk contribs‎ m 6,713 bytes +16‎ →‎Controller ($2000) [write]
• curprev 13:1813:18, 11 June 2009‎ Ndwiki talk contribs‎ m 6,697 bytes +4‎ →‎Controller ($2000) [write]
• curprev 13:1113:11, 11 June 2009‎ Ndwiki talk contribs‎ m 6,693 bytes +9‎ No edit summary
• curprev 13:0913:09, 11 June 2009‎ Ndwiki talk contribs‎ m 6,684 bytes +5,563‎ No edit summary
• curprev 07:4707:47, 11 June 2009‎ Banshaku talk contribs‎ m 1,121 bytes +24‎ No edit summary
• curprev 07:4607:46, 11 June 2009‎ Banshaku talk contribs‎ m 1,097 bytes +15‎ No edit summary
• curprev 07:1107:11, 11 June 2009‎ Banshaku talk contribs‎ m 1,082 bytes 0‎ moved PPU REGISTERS to PPU registers

20 April 2009

• curprev 09:5709:57, 20 April 2009‎ Banshaku talk contribs‎ m 1,082 bytes +1‎ No edit summary
• curprev 09:5309:53, 20 April 2009‎ Banshaku talk contribs‎ m 1,081 bytes +7‎ No edit summary
• curprev 09:5209:52, 20 April 2009‎ Banshaku talk contribs‎ m 1,074 bytes −137‎ No edit summary

17 April 2009

• curprev 05:5205:52, 17 April 2009‎ Banshaku talk contribs‎ m 1,211 bytes +102‎ No edit summary
• curprev 05:5005:50, 17 April 2009‎ Banshaku talk contribs‎ m 1,109 bytes +1,109‎ Created page with 'The PPU exposes only eight memory-mapped registers to the CPU. These nominally sit at $2000 through $2007 in the CPU's address space, but because they're incompletely decoded, th...'