APU DMC: Revision history

21 March 2024

• curprev 16:2216:22, 21 March 2024‎ Bregalad talk contribs‎ 18,216 bytes +1,188‎ →‎Pitch table: There is no point in giving the fraction of cents, who aren't perceptible by the human ear. Instead give pitches for 1-byte, 17-byte and 33-byte loops.

15 March 2024

• curprev 15:5915:59, 15 March 2024‎ Fiskbit talk contribs‎ 17,028 bytes −900‎ Removes the list of DMC DMA cycle length cases; a similar list now lives in 'Controller reading code' where it's more comprehensive for the task at hand. While this list is convenient, it can be misleading and is not enough to implement DMA correctly.

13 April 2023

• curprev 06:3506:35, 13 April 2023‎ Fiskbit talk contribs‎ 17,928 bytes −1‎ →‎Concept: Changes 'sprite zero' to 'sprite 0' for consistency and thus searchability. Minor changes to wording for slightly better flow.

14 February 2023

• curprev 03:5703:57, 14 February 2023‎ Jeffythedragonslayer talk contribs‎ 17,929 bytes +4‎ →‎Likely internal implementation of the read: I thought these two sentences sounded awkward so I added a "but"
• curprev 03:3903:39, 14 February 2023‎ Jeffythedragonslayer talk contribs‎ 17,925 bytes +2‎ →‎Number of scanlines to wait table: best time is least time
• curprev 03:3703:37, 14 February 2023‎ Jeffythedragonslayer talk contribs‎ 17,923 bytes +2‎ one onehundreth of a semitone not 1 out of 100

14 May 2020

• curprev 22:1322:13, 14 May 2020‎ Fiskbit talk contribs‎ m 17,921 bytes +1‎ The CPU vs APU clock rate was reversed.

18 April 2020

• curprev 03:1403:14, 18 April 2020‎ Quietust talk contribs‎ m 17,920 bytes +1‎ form -> forum

10 December 2019

• curprev 08:2508:25, 10 December 2019‎ Rainwarrior talk contribs‎ m 17,919 bytes +5‎ →‎Memory reader: missing ref tag
• curprev 08:2008:20, 10 December 2019‎ Rainwarrior talk contribs‎ 17,914 bytes +737‎ →‎Memory reader: enumerate the various delay cases

23 August 2019

• curprev 05:4305:43, 23 August 2019‎ Koitsu talk contribs‎ 17,177 bytes +31‎ →‎Overview

26 September 2018

• curprev 07:1907:19, 26 September 2018‎ Rainwarrior talk contribs‎ 17,146 bytes +6‎ →‎Overview: clarify that this is bytes

21 September 2018

• curprev 09:0309:03, 21 September 2018‎ Bregalad talk contribs‎ 17,140 bytes +46‎ →‎Usage of DMC for syncing to video: Remove usage of the 2nd person, hopefully making the documentation clearer and more professional

12 June 2018

• curprev 23:0523:05, 12 June 2018‎ Rainwarrior talk contribs‎ 17,094 bytes −9‎ →‎Pitch table: G might be more descriptive of the intent and expectation than F#, even though it's closer to the latter.

30 October 2015

• curprev 15:3715:37, 30 October 2015‎ Rainwarrior talk contribs‎ 17,103 bytes +29‎ →‎Conflict with controller and PPU read: mentioning the $2002 conflict
• curprev 15:3515:35, 30 October 2015‎ Rainwarrior talk contribs‎ 17,074 bytes +496‎ note about tuned frequencies, minor cleanup

11 September 2015

• curprev 03:0103:01, 11 September 2015‎ Rainwarrior talk contribs‎ m 16,578 bytes −5‎ consistency of . in bitfields, R vs F
• curprev 02:5702:57, 11 September 2015‎ Rainwarrior talk contribs‎ 16,583 bytes +52‎ non-binary explanations for sample address and length

26 May 2015

• curprev 17:1217:12, 26 May 2015‎ Rainwarrior talk contribs‎ m 16,531 bytes −1‎ →‎Conflict with controller read: broken header formatting
• curprev 17:1117:11, 26 May 2015‎ Rainwarrior talk contribs‎ 16,532 bytes +420‎ conflict with controller is too important to be buried in "likely internal implementation" section, hoisting it out to a more prominent section of its own

10 February 2015

• curprev 08:5308:53, 10 February 2015‎ Koitsu talk contribs‎ 16,112 bytes −11‎ No edit summary

9 February 2015

• curprev 05:0505:05, 9 February 2015‎ Koitsu talk contribs‎ 16,123 bytes +9‎ No edit summary

16 November 2014

• curprev 01:4901:49, 16 November 2014‎ Lidnariq talk contribs‎ m 16,114 bytes −5‎ Consistent number of digits of significance for frequencies

27 May 2014

• curprev 13:3813:38, 27 May 2014‎ Tepples talk contribs‎ 16,119 bytes +149‎ CPU vs. APU cycles resulted in confusion on the BBS. Added a worked example.

29 December 2013

• curprev 04:5104:51, 29 December 2013‎ Bavi H talk contribs‎ 15,970 bytes +612‎ Undo revision 7922 by Bavi H (talk)
• curprev 03:5203:52, 29 December 2013‎ Bavi H talk contribs‎ 15,358 bytes −612‎ →‎Pitch table: Pitch table -> Rate table; removed pitch names

5 November 2013

• curprev 21:2021:20, 5 November 2013‎ Tepples talk contribs‎ 15,970 bytes +122‎ There are so many "counters" here that "delta counter" doesn't seem clear enough for ESLers

4 November 2013

• curprev 22:0522:05, 4 November 2013‎ Lidnariq talk contribs‎ m 15,848 bytes +42‎ →‎Output unit: minor edits for clarity (hopefully)

9 September 2013

• curprev 13:3013:30, 9 September 2013‎ Ulfalizer talk contribs‎ m 15,806 bytes +1‎ No edit summary
• curprev 13:1613:16, 9 September 2013‎ Ulfalizer talk contribs‎ 15,805 bytes +473‎ Clarify that the bits-remaining counter is always ticking

14 August 2013

• curprev 05:4005:40, 14 August 2013‎ Lidnariq talk contribs‎ 15,332 bytes 0‎ Make footnote's target obvious. Make CPU always uppercase. Rewrite delay calculation to be less math-in-sentences.

9 May 2013

• curprev 14:4314:43, 9 May 2013‎ Ulfalizer talk contribs‎ 15,332 bytes +115‎ Enumerate things that can affect the counter
• curprev 14:3514:35, 9 May 2013‎ Ulfalizer talk contribs‎ 15,217 bytes +47‎ Clarify that the rate only affects automatic sample playback

8 May 2013

• curprev 19:5419:54, 8 May 2013‎ Ulfalizer talk contribs‎ 15,170 bytes +208‎ Clarify what the rate value specifies
• curprev 17:1317:13, 8 May 2013‎ Ulfalizer talk contribs‎ m 14,962 bytes +3‎ Fix typo

11 December 2012

• curprev 13:0913:09, 11 December 2012‎ Tepples talk contribs‎ 14,959 bytes +76‎ bbs ref for counter not changed properly

19 September 2012

• curprev 21:0421:04, 19 September 2012‎ Bregalad talk contribs‎ 14,883 bytes +101‎ →‎Likely internal implementation of the read: This bug is not present in PAL NESes

31 August 2012

• curprev 22:4222:42, 31 August 2012‎ Tepples talk contribs‎ m 14,782 bytes −17‎ Parodius Da? more like Parodius DEL

20 June 2012

• curprev 15:1015:10, 20 June 2012‎ Tepples talk contribs‎ 14,799 bytes +226‎ →‎Memory reader: OAM DMA is paused for two cycles

7 June 2012

• curprev 14:4814:48, 7 June 2012‎ Zepper talk contribs‎ m 14,573 bytes +47‎ →‎Memory reader: the CPU isn't "suspended", but stalled.

26 May 2012

• curprev 20:0020:00, 26 May 2012‎ Rainwarrior talk contribs‎ m 14,526 bytes +17‎ APU category

19 May 2012

• curprev 05:1305:13, 19 May 2012‎ Rainwarrior talk contribs‎ m 14,509 bytes +1‎ →‎Pitch table: typos
• curprev 05:0705:07, 19 May 2012‎ Rainwarrior talk contribs‎ 14,508 bytes +1,079‎ →‎Pitch table: include both NTSC and PAL

26 April 2012

• curprev 02:1002:10, 26 April 2012‎ Drag talk contribs‎ 13,429 bytes +1,139‎ I went over the thread myself, and tried to update (and clarify) this section using the information I found within it.

24 April 2012

• curprev 21:4721:47, 24 April 2012‎ Bregalad talk contribs‎ 12,290 bytes +17‎ some improvements
• curprev 21:3421:34, 24 April 2012‎ Bregalad talk contribs‎ 12,273 bytes +250‎ →‎Usage of DMC for syncing to video: some quick fixes
• curprev 21:3021:30, 24 April 2012‎ Bregalad talk contribs‎ 12,023 bytes +4,831‎ Made the long section about syncing to video with DMC, exported the tables from my posts in the BBS

1 April 2012

• curprev 01:0901:09, 1 April 2012‎ Zepper talk contribs‎ 7,192 bytes −169‎ Undo revision 3380 by Zepper (talk) - I was crazy...
• curprev 01:0801:08, 1 April 2012‎ Zepper talk contribs‎ 7,361 bytes +169‎ →‎4010: $10: Length reload

15 November 2011

• curprev 00:0500:05, 15 November 2011‎ Zepper talk contribs‎ m 7,192 bytes −131‎ No edit summary