APU basics: Revision history

23 August 2016

• curprev 22:3822:38, 23 August 2016‎ Tepples talk contribs‎ 6,299 bytes 0‎ Clarify in lead section that this is a tutorial
• curprev 22:3722:37, 23 August 2016‎ Tepples talk contribs‎ 6,299 bytes +149‎ →‎Register initialization: Briefly list APU features that the initialization disables

22 August 2016

• curprev 01:3401:34, 22 August 2016‎ Rainwarrior talk contribs‎ 6,150 bytes −152‎ →‎Register initialization: suggest not using language that tells a learning programmer that this is "hands off", per: http://forums.nesdev.com/viewtopic.php?f=2&t=14721&p=177903#p177903

21 August 2016

• curprev 17:2917:29, 21 August 2016‎ Furrykef talk contribs‎ 6,302 bytes +98‎ →‎Register initialization: avoid write to $4014 (OAMDMA)
• curprev 15:4415:44, 21 August 2016‎ Furrykef talk contribs‎ 6,204 bytes −58‎ →‎Register initialization: I can find no reason to initialize $4015 first. Also, writing the regs in reverse order is no less clear and saves two bytes.

11 September 2014

• curprev 04:1704:17, 11 September 2014‎ Koitsu talk contribs‎ 6,262 bytes −126‎ Removal of syntax highlighter

25 August 2013

• curprev 07:4107:41, 25 August 2013‎ Koitsu talk contribs‎ 6,388 bytes −28‎ No edit summary

24 August 2013

• curprev 09:2709:27, 24 August 2013‎ Koitsu talk contribs‎ 6,416 bytes +155‎ No edit summary

16 February 2013

• curprev 16:5416:54, 16 February 2013‎ Tepples talk contribs‎ m 6,261 bytes +10‎ Blargg web consolidation http://forums.nesdev.com/viewtopic.php?p=107763#p107763

26 May 2012

• curprev 20:0220:02, 26 May 2012‎ Rainwarrior talk contribs‎ m 6,251 bytes +17‎ APU category

16 February 2012

• curprev 02:3102:31, 16 February 2012‎ Karatorian talk contribs‎ 6,234 bytes −14‎ →‎Playing a musical note: Second method example code for selecting triangle notes was *both* loading one octave higher and dividing the period in half.

19 November 2010

• curprev 01:3001:30, 19 November 2010‎ Blargg talk contribs‎ m 6,248 bytes +116‎ →‎Register initialization: don't alter code

10 September 2010

• curprev 18:3218:32, 10 September 2010‎ Tepples talk contribs‎ 6,132 bytes +265‎ →‎Playing a musical note: Two ways to compensate for triangle lower octave

29 July 2010

• curprev 16:3616:36, 29 July 2010‎ Blargg talk contribs‎ m 5,867 bytes −1‎ →‎Playing a musical note
• curprev 16:3616:36, 29 July 2010‎ Blargg talk contribs‎ m 5,868 bytes −1‎ →‎Playing a musical note
• curprev 16:3516:35, 29 July 2010‎ Blargg talk contribs‎ 5,869 bytes +1,310‎ full section describing note playing, and linked code playing scale
• curprev 15:3915:39, 29 July 2010‎ Blargg talk contribs‎ m 4,559 bytes 0‎ in example, enable triangle after setting pitch
• curprev 15:3015:30, 29 July 2010‎ Blargg talk contribs‎ m 4,559 bytes +5‎ Eliminated delay when muting/un-muting triangle
• curprev 13:1413:14, 29 July 2010‎ Tepples talk contribs‎ 4,554 bytes +159‎ An octave down
• curprev 13:1013:10, 29 July 2010‎ Tepples talk contribs‎ 4,395 bytes +409‎ How to use a period table
• curprev 13:0213:02, 29 July 2010‎ Tepples talk contribs‎ 3,986 bytes +57‎ link back to each channel's main article
• curprev 13:0013:00, 29 July 2010‎ Tepples talk contribs‎ m 3,929 bytes 0‎ →‎Square wave channels: that $4000 value would have played 75% duty
• curprev 13:0013:00, 29 July 2010‎ Tepples talk contribs‎ 3,929 bytes +117‎ →‎Register initialization: $08 to turn the sweep all the way off (required for using the lowest octave of pulse)
• curprev 12:0012:00, 29 July 2010‎ Blargg talk contribs‎ 3,812 bytes +3,812‎ Created