MMC5: Revision history

9 February 2019

• curprev 15:1115:11, 9 February 2019‎ Ben Boldt talk contribs‎ 30,012 bytes +207‎ →‎Scanline Detection and Scanline IRQ: Clarify, some things that clear the 'in frame' flag do not clear the scanline IRQ.
• curprev 08:0608:06, 9 February 2019‎ Ben Boldt talk contribs‎ 29,805 bytes +763‎ Tweaked some things based on recent observations.

30 January 2019

• curprev 13:1713:17, 30 January 2019‎ NewRisingSun talk contribs‎ m 29,042 bytes +1‎ →‎Scanline Detection and Scanline IRQ
• curprev 13:0913:09, 30 January 2019‎ NewRisingSun talk contribs‎ 29,041 bytes +472‎ Revised description of the scanline detector

20 January 2019

• curprev 19:0319:03, 20 January 2019‎ Ben Boldt talk contribs‎ 28,569 bytes +20‎ Added pinout link to infobox.

18 January 2019

• curprev 06:2106:21, 18 January 2019‎ Lidnariq talk contribs‎ m 28,549 bytes +74‎ →‎Vertical Split Scroll ($5201): MMC5 doesn't keep you from setting the fine vertical scrolling differently across left-and-right split screen
• curprev 06:0206:02, 18 January 2019‎ Lidnariq talk contribs‎ m 28,475 bytes +11‎ →‎Operation Notes: an ellipsis is a bit chatty. so is use of "you"
• curprev 05:4605:46, 18 January 2019‎ Lidnariq talk contribs‎ m 28,464 bytes −9‎ →‎PRG-RAM bankswitching quirks: clarify
• curprev 05:4305:43, 18 January 2019‎ Lidnariq talk contribs‎ m 28,473 bytes +12‎ →‎CHR Bankswitching ($5120-$5130): fix internal link

12 January 2019

• curprev 18:3118:31, 12 January 2019‎ Tepples talk contribs‎ m 28,461 bytes +29‎ →‎See also: add references element for cite.php

11 January 2019

• curprev 21:3221:32, 11 January 2019‎ Ben Boldt talk contribs‎ 28,432 bytes −64‎ Updated, confirmed in thread that split screen mode is used in the ending of Bandit Kings of Ancient China.

4 January 2019

• curprev 05:5805:58, 4 January 2019‎ Ben Boldt talk contribs‎ m 28,496 bytes +36‎ Added category "Mappers with cycle IRQs", technically only MMC5A but nonetheless.

3 January 2019

• curprev 20:2020:20, 3 January 2019‎ Lidnariq talk contribs‎ 28,460 bytes +4‎ →‎Configuration: Split out monitor registers. While the monitored copy at $2000 and $2001 are definitely part of configuration, the later ones may not be, and it's obfuscatory to include it there.
• curprev 08:4008:40, 3 January 2019‎ Ben Boldt talk contribs‎ m 28,456 bytes +1‎ →‎Registers: Moved note to include all PPU registers.
• curprev 04:0004:00, 3 January 2019‎ Ben Boldt talk contribs‎ m 28,455 bytes −2‎ typo fix
• curprev 02:0702:07, 3 January 2019‎ Ben Boldt talk contribs‎ 28,457 bytes +638‎ →‎Registers: Added newly found sniffed registers

31 December 2018

• curprev 02:5802:58, 31 December 2018‎ Lidnariq talk contribs‎ m 27,819 bytes −4‎ →‎8x16 mode enable 2 ($2001): edit-o
• curprev 02:1602:16, 31 December 2018‎ Lidnariq talk contribs‎ m 27,823 bytes +1‎ →‎CHR Bankswitching ($5120-$5130): braino
• curprev 02:1502:15, 31 December 2018‎ Lidnariq talk contribs‎ 27,822 bytes +70‎ →‎CHR Bankswitching ($5120-$5130): backref
• curprev 02:1302:13, 31 December 2018‎ Lidnariq talk contribs‎ m 27,752 bytes +6‎ →‎8x16 mode enable 2 ($2001): forgot to close cite
• curprev 02:1302:13, 31 December 2018‎ Lidnariq talk contribs‎ 27,746 bytes +739‎ →‎Configuration: Technically these registers are part of the MMC5

25 December 2018

• curprev 02:3902:39, 25 December 2018‎ Tepples talk contribs‎ 27,007 bytes +314‎ →‎Emulation quirks with commercial games: Relying on 64K fallback doesn't help repro makers, per lidnariq

22 December 2018

• curprev 19:0519:05, 22 December 2018‎ Lidnariq talk contribs‎ m 26,693 bytes −36‎ →‎CHR select $5120-$512B: Both "LSBit from register ignored" and "upper bits from register ignored" behaviors exist. Only VRC6, Mapper 90, MMC1, and MMC5 can select multiple different banking layouts. VRC6 PRG, m90 PRG & CHR, MMC5 CHR ignore MSbit.
• curprev 15:2215:22, 22 December 2018‎ Bregalad talk contribs‎ m 26,729 bytes −5‎ →‎CHR Bankswitching ($5120-$5130): Misspelling fixed.
• curprev 14:0314:03, 22 December 2018‎ Bregalad talk contribs‎ 26,734 bytes +401‎ Makes PRG and CHR tables more alike to eachother, add warning about CHR bankswitching being in actual size. Remove note about nonexisting registers.

21 December 2018

• curprev 22:4422:44, 21 December 2018‎ Lidnariq talk contribs‎ 26,333 bytes +148‎ →‎Emulation quicks with commercial games: typo. Explain what "Uncharted Waters" actually needs, because "PRG-RAM banking" is underspecified.
• curprev 22:3922:39, 21 December 2018‎ Lidnariq talk contribs‎ 26,185 bytes −2‎ →‎PRG-RAM bankswitching quircks: typoes
• curprev 22:3822:38, 21 December 2018‎ Lidnariq talk contribs‎ m 26,187 bytes −25‎ →‎PRG Bankswitching ($5113-$5117): grammar, typos, fluidity
• curprev 22:3722:37, 21 December 2018‎ Lidnariq talk contribs‎ 26,212 bytes −65‎ →‎PRG Bankswitching ($5113-$5117): VRC6's two PRG bankswitching registers specify offset as multiples of 16 KiB and 8 KiB. So remove false generalization.
• curprev 21:3821:38, 21 December 2018‎ Bregalad talk contribs‎ 26,277 bytes −3,120‎ →‎PRG Bankswitching: Removes duplicate information, numbers are in hex ($ sign) and stop talking about nonexisting registers $5110-$5112

20 December 2018

• curprev 22:1822:18, 20 December 2018‎ Ben Boldt talk contribs‎ 29,397 bytes +209‎ Added new findings from krzysiobal

17 December 2018

• curprev 22:3922:39, 17 December 2018‎ Ben Boldt talk contribs‎ 29,188 bytes +185‎ →‎Vertical Split Mode ($5200): Added info about possible split screen mode in ending sequence of Bandit Kings of Ancient China.

8 December 2018

• curprev 02:1502:15, 8 December 2018‎ Krzysiobal talk contribs‎ m 29,003 bytes 0‎ Just Breed writes $03, not $02
• curprev 00:2700:27, 8 December 2018‎ Ben Boldt talk contribs‎ 29,003 bytes +207‎ →‎Unknown Register ($5800, write only): Updating with new info/clues
• curprev 00:1800:18, 8 December 2018‎ Ben Boldt talk contribs‎ 28,796 bytes +83‎ →‎CL3 / SL3 Data Direction and Output Data ($5207 write only): Updated with new findings.

7 December 2018

• curprev 01:5101:51, 7 December 2018‎ Ben Boldt talk contribs‎ 28,713 bytes +151‎ →‎Overview: Added info about reset detection.

6 December 2018

• curprev 03:4003:40, 6 December 2018‎ Ben Boldt talk contribs‎ m 28,562 bytes −246‎ →‎CL3 / SL3 Status ($5208 read/write): Removed extra info that is no longer useful.
• curprev 03:3803:38, 6 December 2018‎ Ben Boldt talk contribs‎ 28,808 bytes +236‎ Improved CL3/SL3 register descriptions with new findings
• curprev 03:0303:03, 6 December 2018‎ Ben Boldt talk contribs‎ 28,572 bytes +116‎ →‎Unknown Register ($5207 write only)
• curprev 02:1602:16, 6 December 2018‎ Ben Boldt talk contribs‎ 28,456 bytes +682‎ Added new findings from VCC current spike testing tonight.

25 November 2018

• curprev 22:2422:24, 25 November 2018‎ Ben Boldt talk contribs‎ 27,774 bytes +180‎ →‎PRG Bankswitching: Grayed out boxes in the PRG bankswitching table where it can't be used due to /CS.
• curprev 20:2620:26, 25 November 2018‎ Lidnariq talk contribs‎ 27,594 bytes 0‎ →‎PRG Bankswitching: use rowspan to unify places where the two address buses are the same in order to emphasize where the two buses differ
• curprev 20:1020:10, 25 November 2018‎ Krzysiobal talk contribs‎ m 27,594 bytes +16‎ Filled question marks for PRG-RAM
• curprev 19:0219:02, 25 November 2018‎ Ben Boldt talk contribs‎ 27,578 bytes +84‎ →‎PRG Bankswitching: Additional clarity, filled in some RAM ?s
• curprev 02:4802:48, 25 November 2018‎ Ben Boldt talk contribs‎ 27,494 bytes +1,412‎ →‎PRG Bankswitching: I have made improvements based on feedback in the forum.

23 November 2018

• curprev 19:5819:58, 23 November 2018‎ Ben Boldt talk contribs‎ m 26,082 bytes +58‎ →‎PRG Bankswitching: Made table prettier.
• curprev 19:0519:05, 23 November 2018‎ Ben Boldt talk contribs‎ 26,024 bytes +721‎ →‎PRG Bankswitching: Details about how the bits of the bankswitch registers physically correspond to PRG address bits.
• curprev 18:4018:40, 23 November 2018‎ Ben Boldt talk contribs‎ 25,303 bytes +126‎ →‎PRG Bankswitching: Change order of modes, default/least complicated mode 3 first and then progressing to mode 0 now. Also noted for "Ignored" which register covers it.
• curprev 18:3218:32, 23 November 2018‎ Ben Boldt talk contribs‎ m 25,177 bytes 0‎ →‎PRG Bankswitching
• curprev 18:3118:31, 23 November 2018‎ Ben Boldt talk contribs‎ 25,177 bytes +1,084‎ →‎PRG Bankswitching: Renamed and added table