A20 Line: Revision history

16 June 2017

• curprev 06:5906:59, 16 June 2017‎ osdev>Eladashkcenazi335‎ 10,565 bytes +103‎ →‎Testing A20 line from Protected Mode
• curprev 06:5706:57, 16 June 2017‎ osdev>Eladashkcenazi335‎ 10,462 bytes +418‎ →‎Testing the A20 line

14 June 2017

• curprev 18:3718:37, 14 June 2017‎ osdev>Eladashkcenazi335‎ 10,044 bytes −4‎ →‎Access of 0xee
• curprev 17:2417:24, 14 June 2017‎ osdev>Eladashkcenazi335‎ 10,048 bytes +7‎ →‎Access of 0xee
• curprev 17:2217:22, 14 June 2017‎ osdev>Eladashkcenazi335‎ 10,041 bytes +808‎ →‎Enabling

15 February 2017

• curprev 17:3217:32, 15 February 2017‎ osdev>Cheapskate01‎ m 9,233 bytes −1‎ Fixed small spelling error near end of INT 15 section.

23 July 2016

• curprev 11:2611:26, 23 July 2016‎ osdev>New16‎ m 9,234 bytes +2‎ spelling
• curprev 11:2511:25, 23 July 2016‎ osdev>New16‎ 9,232 bytes +546‎ reworked section "INT 15, 2401"

16 January 2016

• curprev 15:0115:01, 16 January 2016‎ osdev>Catnikita255‎ 8,686 bytes +2‎ →‎Keyboard Controller

21 February 2014

• curprev 12:3612:36, 21 February 2014‎ Brendan talk contribs‎ 8,684 bytes +784‎ Added "recommended method"

25 March 2012

• curprev 03:5003:50, 25 March 2012‎ Brendan talk contribs‎ m 7,900 bytes +27‎ Cross-linking

15 January 2012

• curprev 23:5623:56, 15 January 2012‎ osdev>Jimmio92‎ 7,873 bytes +338‎ No edit summary

18 May 2011

• curprev 00:0400:04, 18 May 2011‎ osdev>Primis‎ m 7,535 bytes −5‎ →‎Keyboard Controller: Fixed a Broken Link, Specifically http://www.diakom.ru/el/elfirms/datashts/Smsc/42w11.pdf

5 February 2011

• curprev 12:2512:25, 5 February 2011‎ osdev>Mnemo‎ m 7,540 bytes +16‎ de:A20-Gate

30 January 2010

• curprev 11:1411:14, 30 January 2010‎ osdev>Nedbrek‎ 7,524 bytes +325‎ Added Int 15, function 2401

11 August 2009

• curprev 19:4419:44, 11 August 2009‎ osdev>Yuhong‎ 7,199 bytes 0‎ Swap the order of ES/DS
• curprev 19:4019:40, 11 August 2009‎ osdev>Yuhong‎ 7,199 bytes +24‎ →‎Fast A20 Gate
• curprev 19:3919:39, 11 August 2009‎ osdev>Yuhong‎ 7,175 bytes 0‎ →‎Testing the A20 line: Substitute the 386-specific FS/GS with DS/ES.

18 July 2009

• curprev 00:5200:52, 18 July 2009‎ osdev>Manonthemoon‎ 7,175 bytes −328‎ minor rewrite of intro

10 May 2009

• curprev 01:2701:27, 10 May 2009‎ osdev>Oros‎ m 7,503 bytes +27‎ →‎Fast A20 Gate
• curprev 01:2601:26, 10 May 2009‎ osdev>Oros‎ m 7,476 bytes +32‎ →‎Keyboard Controller
• curprev 01:2601:26, 10 May 2009‎ osdev>Oros‎ m 7,444 bytes +17‎ →‎Testing the A20 line

19 March 2009

• curprev 05:2105:21, 19 March 2009‎ osdev>Thepowersgang‎ 7,427 bytes −1‎ Undo revision 7386 by Thepowersgang (Talk)

18 March 2009

• curprev 11:3411:34, 18 March 2009‎ osdev>Thepowersgang‎ 7,428 bytes +1‎ Undo revision 7385 by Hyperdrive (Talk). It is smaller to use xor to zero a register, and when you know that ah is 0, you can just set al
• curprev 08:5308:53, 18 March 2009‎ osdev>Hyperdrive‎ 7,427 bytes −1‎ Corrected code snippet to test A20 gate state

8 February 2009

• curprev 12:0612:06, 8 February 2009‎ Rook talk contribs‎ 7,428 bytes +85‎ →‎Testing the A20 line
• curprev 12:0012:00, 8 February 2009‎ Rook talk contribs‎ 7,343 bytes +213‎ →‎Testing the A20 line: Maybe the code in this function is a bit excessive, but I wanted it to be self-contained.
• curprev 11:4411:44, 8 February 2009‎ Rook talk contribs‎ 7,130 bytes +44‎ →‎Testing the A20 line
• curprev 11:4111:41, 8 February 2009‎ Rook talk contribs‎ 7,086 bytes +833‎ No edit summary

26 December 2008

• curprev 03:2203:22, 26 December 2008‎ osdev>Yuhong‎ 6,253 bytes +177‎ No edit summary

1 May 2008

• curprev 06:3206:32, 1 May 2008‎ osdev>Randomibis‎ 6,076 bytes 0‎ spelling correction

28 January 2008

• curprev 21:0921:09, 28 January 2008‎ osdev>SuperSwampert67‎ m 6,076 bytes +9‎ Forgot to remove extra labels. a20wait2 and .10 jump to the exact same spot.
• curprev 21:0721:07, 28 January 2008‎ osdev>SuperSwampert67‎ m 6,067 bytes −40‎ Wait code bugs me. Why not just jump when it's NOT set/unset? Edited.

20 February 2007

• curprev 20:4520:45, 20 February 2007‎ osdev>Os64dev‎ 6,107 bytes +925‎ No edit summary

14 February 2007

• curprev 22:4622:46, 14 February 2007‎ osdev>Jhawthorn‎ 5,182 bytes −3‎ No edit summary

13 January 2007

• curprev 21:5921:59, 13 January 2007‎ osdev>Anog‎ m 5,185 bytes +40‎ →‎Fast A20 Gate
• curprev 21:5721:57, 13 January 2007‎ osdev>Anog‎ m 5,145 bytes +1‎ →‎Keyboard Controller: typo

9 January 2007

• curprev 10:2810:28, 9 January 2007‎ Jules talk contribs‎ 5,144 bytes +319‎ Clarify history and details; correct assertion that processor is relevant - A20 line enabling is a chipset feature, not processor.

30 December 2006

• curprev 04:3604:36, 30 December 2006‎ osdev>Jhawthorn‎ 4,825 bytes +21‎ No edit summary

24 December 2006

• curprev 14:5114:51, 24 December 2006‎ Combuster talk contribs‎ 4,804 bytes +409‎ updated contents, removed stub tag
• curprev 09:2309:23, 24 December 2006‎ osdev>Jhawthorn‎ m 4,395 bytes +1‎ No edit summary
• curprev 09:1609:16, 24 December 2006‎ osdev>Jhawthorn‎ 4,394 bytes +834‎ →‎Pre Pentium
• curprev 09:1509:15, 24 December 2006‎ osdev>Jhawthorn‎ 3,560 bytes +1,271‎ No edit summary
• curprev 03:2903:29, 24 December 2006‎ osdev>Brynet-Inc‎ m 2,289 bytes +13‎ Spelling corrections, (Someone made up words lol..)

23 December 2006

• curprev 21:0921:09, 23 December 2006‎ Tyler talk contribs‎ 2,276 bytes +1,291‎ Expanded intro and added another method

22 December 2006

• curprev 06:4206:42, 22 December 2006‎ osdev>Jhawthorn‎ 985 bytes +82‎ No edit summary

17 December 2006

• curprev 22:1522:15, 17 December 2006‎ Combuster talk contribs‎ m 903 bytes 0‎ A20Line moved to A20 Line: naming style
• curprev 22:0922:09, 17 December 2006‎ Combuster talk contribs‎ 903 bytes −152‎ de-faq-ed topic

29 November 2006

• curprev 10:5110:51, 29 November 2006‎ osdev>TheQuux‎ 1,055 bytes +10‎ No edit summary
• curprev 10:4710:47, 29 November 2006‎ osdev>TheQuux‎ 1,045 bytes +1,045‎ Migrated page