APU: Revision history

10 June 2023

• curprev 12:4512:45, 10 June 2023‎ Tepples talk contribs‎ 19,173 bytes +58‎ →‎Status ($4015): org's schematic shows that internally, writing 0 to bits 3-0 halts the length counter as opposed to clearing it

2 March 2023

• curprev 20:5920:59, 2 March 2023‎ Fiskbit talk contribs‎ 19,115 bytes +131‎ →‎Status ($4015): More details about open bus on bit 5.
• curprev 10:0310:03, 2 March 2023‎ Fiskbit talk contribs‎ 18,984 bytes +252‎ →‎Status ($4015): Notes (lack of) impact of reads on open bus.

2 February 2023

• curprev 23:0623:06, 2 February 2023‎ Rainwarrior talk contribs‎ 18,732 bytes +690‎ →‎Triangle ($4008–$400B): trying to clarify the C bit function
• curprev 22:4222:42, 2 February 2023‎ Rainwarrior talk contribs‎ 18,042 bytes +239‎ →‎Pulse ($4000–$4007): describe the $4000 bits a little more thoroughly

12 January 2023

• curprev 20:0420:04, 12 January 2023‎ Qalle talk contribs‎ 17,803 bytes +203‎ punctuation, formatting

9 November 2020

• curprev 15:4615:46, 9 November 2020‎ Quietust talk contribs‎ m 17,600 bytes −26‎ No edit summary

12 August 2019

• curprev 17:1517:15, 12 August 2019‎ Lidnariq talk contribs‎ 17,626 bytes 0‎ →‎Frame Counter ($4017): frm_quarter was wrong too; frm_d is entirely suppressed in 5-step mode.
• curprev 17:1317:13, 12 August 2019‎ Lidnariq talk contribs‎ 17,626 bytes 0‎ →‎Frame Counter ($4017): mode 1 frm_half timing was wrong

21 July 2019

• curprev 21:4721:47, 21 July 2019‎ Rainwarrior talk contribs‎ 17,626 bytes +184‎ →‎Glossary: clarify how sequencer is used here

20 November 2018

• curprev 05:5005:50, 20 November 2018‎ Koitsu talk contribs‎ 17,442 bytes +23‎ No edit summary

24 August 2017

• curprev 15:2315:23, 24 August 2017‎ Tepples talk contribs‎ 17,419 bytes +140‎ Keep it simple stupid

7 January 2017

• curprev 05:1805:18, 7 January 2017‎ Tepples talk contribs‎ 17,279 bytes +197‎ →‎Glossary: syncing pulse phase through 0 period

27 December 2016

• curprev 12:3812:38, 27 December 2016‎ Zepper talk contribs‎ m 17,082 bytes +308‎ →‎Frame Counter ($4017): Added more details.

26 February 2015

• curprev 05:1905:19, 26 February 2015‎ Tepples talk contribs‎ 16,774 bytes +100‎ →‎Status ($4015): clarification by request of daroou in #nesdev

21 February 2015

• curprev 04:2904:29, 21 February 2015‎ Daroou talk contribs‎ 16,674 bytes +90‎ No edit summary

27 October 2014

• curprev 03:4103:41, 27 October 2014‎ Furrykef talk contribs‎ m 16,584 bytes −1‎ →‎Other Uses

10 September 2013

• curprev 12:1612:16, 10 September 2013‎ Ulfalizer talk contribs‎ 16,585 bytes +74‎ The triangle's linear counter does not influence status in $4015 reads (confirmed in Visual 2A03 circuitry)

15 August 2013

• curprev 08:4408:44, 15 August 2013‎ Ulfalizer talk contribs‎ 16,511 bytes +118‎ Sample restarting is delayed if the last sample byte of a previous sample is playing (rainwarrior)

9 May 2013

• curprev 14:2714:27, 9 May 2013‎ Ulfalizer talk contribs‎ 16,393 bytes +220‎ Add output conditions for the DMC channel