APU Triangle: Revision history

19 December 2021

• curprev 01:2001:20, 19 December 2021‎ Lidnariq talk contribs‎ 5,357 bytes +176‎ mention the other misuse of the triangle channel

11 October 2020

• curprev 21:4021:40, 11 October 2020‎ Tepples talk contribs‎ 5,181 bytes +81‎ Mixer nonlinearity caveat

14 August 2019

• curprev 01:1101:11, 14 August 2019‎ Rainwarrior talk contribs‎ 5,100 bytes +85‎ clarify that $4008 only method requires permanent halt/reload precondition

12 August 2019

• curprev 10:5110:51, 12 August 2019‎ Rainwarrior talk contribs‎ m 5,015 bytes −6‎ fix mangled grammar
• curprev 10:5010:50, 12 August 2019‎ Rainwarrior talk contribs‎ 5,021 bytes +192‎ restoring what I was apparently trying to express with the previous erroneous text: writes to $4008 can cause a reload by themselves given this precondition
• curprev 09:5709:57, 12 August 2019‎ Rainwarrior talk contribs‎ 4,829 bytes −260‎ retracting statement about $4008 setting reload counter, I misread my tests, I believe the silencing methods are still correct though

20 March 2019

• curprev 02:4402:44, 20 March 2019‎ Rainwarrior talk contribs‎ 5,089 bytes +193‎ a redundant clarifying note that points out why the write to $400B isn't quite intuitive as a linear counter reload
• curprev 02:4202:42, 20 March 2019‎ Rainwarrior talk contribs‎ 4,896 bytes −595‎ rewriting the silencing advice. in particular the advice to write $400B after $4008 seems very confused (probably because of the omission remedied by my last edit)
• curprev 02:2802:28, 20 March 2019‎ Rainwarrior talk contribs‎ 5,491 bytes +67‎ this diagram seems to be missing the critical information that $4008 also causes linear counter to be reloaded

20 November 2018

• curprev 05:5005:50, 20 November 2018‎ Koitsu talk contribs‎ 5,424 bytes +34‎ No edit summary

19 August 2014

• curprev 04:5604:56, 19 August 2014‎ Koitsu talk contribs‎ 5,390 bytes +29‎ No edit summary

23 May 2013

• curprev 05:4605:46, 23 May 2013‎ Ulfalizer talk contribs‎ 5,361 bytes +11‎ Be more specific about what Mega Man 2 does
• curprev 05:1805:18, 23 May 2013‎ Ulfalizer talk contribs‎ 5,350 bytes +357‎ Add note about what causes popping sounds in the triangle in some games and how they can be eliminated in an emulator

6 May 2013

• curprev 12:2412:24, 6 May 2013‎ Ulfalizer talk contribs‎ 4,993 bytes +135‎ Specify exactly where the waveform clocking happens

3 May 2013

• curprev 11:1111:11, 3 May 2013‎ Ulfalizer talk contribs‎ 4,858 bytes +249‎ 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)
• curprev 05:2505:25, 3 May 2013‎ Ulfalizer talk contribs‎ 4,609 bytes +20‎ Use "linear counter reload flag" instead of "halt flag" to avoid confusion with the length counter halt flag

2 May 2013

• curprev 01:2201:22, 2 May 2013‎ Ulfalizer talk contribs‎ 4,589 bytes +122‎ The triangle period timer ticks at the rate of the CPU clock

27 May 2012

• curprev 05:1905:19, 27 May 2012‎ Drag talk contribs‎ 4,467 bytes +1,733‎ Adding some information for music engine developers on how to voluntarily silence the triangle channel, since it's a bit more complicated than the other channels...

26 May 2012

• curprev 19:5919:59, 26 May 2012‎ Rainwarrior talk contribs‎ m 2,734 bytes +17‎ APU category

1 April 2010

• curprev 14:4814:48, 1 April 2010‎ Tepples talk contribs‎ 2,717 bytes +339‎ relationships

12 June 2009

• curprev 15:0015:00, 12 June 2009‎ Banshaku talk contribs‎ m 2,378 bytes +2,378‎ Created page with 'The NES APU triangle channel generates a pseudo-triangle wave. It has no volume control; the waveform is either cycling or suspended. It includes a ''linear counter'', an...'