For Testers: CGA/VGA Video BIOS separation and Paging patch \ VOGONS

For Testers: CGA/VGA Video BIOS separation and Paging patch

Topic actions

Post a reply

First post, by h-a-l-9000

Posted on 2011-06-13, 16:45

h-a-l-9000 Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 4511
Joined: 2005-02-23, 00:14

Another test build. No awesome new features, but two large patches neverteless.

1. EGA/VGA Video BIOS ROM area is removed from the machines that don't have it, CGA/Hercules/Tandy/PCJr.
This was causing some detection issues. Things to test: software for all these machine types, with focus on the non-EGAVGA.

2. Paging patch (from MB6)
Performance and compatibility improvement for some software that uses paging. The _slow cpu types were renamed since they are not slow anymore. To be tested with protected mode games, though quite a few of them don't use paging.

Attachments

Filename

DOSBox_PG_VBIOS.zip

File size

1.24 MiB

Downloads

397 downloads

File license

Fair use/fair dealing exception

1+1=10

Reply 1 of 7, by h-a-l-9000

Posted on 2011-06-13, 16:47

h-a-l-9000 Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 4511
Joined: 2005-02-23, 00:14

Patch files:

Attachments

Filename

paging-4.diff

File size

63.64 KiB

Downloads

469 downloads

File license

Fair use/fair dealing exception
Filename

un-rom-legacy.diff

File size

27.89 KiB

Downloads

448 downloads

File license

Fair use/fair dealing exception

1+1=10

Reply 2 of 7, by danielc

Posted on 2011-07-03, 06:09

danielc Offline

Rank Member

Rank: Member
Posts: 102
Joined: 2009-03-10, 23:11

Very interesting, mostly the paging one - thanks for the DIFF's. Paging patch will indeed work with cputype:auto (and still switch to dynamic if needed) yes? Also, I have no idea which games use paging... happen to know of a list? Or an easy way to find out i.e. certain binary pattern or a specific file (extender?) that might be included with games?

Regards,
CosmicDan

Reply 3 of 7, by h-a-l-9000

Posted on 2011-07-03, 09:32

h-a-l-9000 Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 4511
Joined: 2005-02-23, 00:14

Hmm for me the video BIOS patch is the more important one, as I have another one that builds on it, and I'd like to finish that before I start with the aspect correction xD

To find out wether a game uses paging you need to add logging, it can't really from extenders. An indication is however if it is mentioned somwhere that the game can use a swap file.

Using paging:
Descent
Descent 2
First Encounters
GTA
Quake
Starcraft 😉
TTD
Windows 3.11
Wing Commander Armada
Wing Commander Privateer
Wing Commander 3

Not using paging:
Cursader: No regret
Duke 3D
Hioctane
Micro Machines 2
MOO2
Radix
Terminal Velocity
Warcraft 1

1+1=10

Reply 4 of 7, by h-a-l-9000

Posted on 2011-07-17, 18:12

h-a-l-9000 Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 4511
Joined: 2005-02-23, 00:14

There's a problem with keyboardlayout.

1+1=10

Reply 5 of 7, by h-a-l-9000

Posted on 2011-07-17, 19:11

h-a-l-9000 Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 4511
Joined: 2005-02-23, 00:14

We don't want to load a codepage on machines with fixed ROM fonts. I hope the rest of the keyboardlayout function is up to this change.

Attachments

Filename

keyboard_layout_non_egavga.diff

File size

1.66 KiB

Downloads

386 downloads

File license

Fair use/fair dealing exception

1+1=10

Reply 6 of 7, by wd

Posted on 2011-07-18, 08:40

wd Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 10813
Joined: 2003-12-03, 21:23

I hope the rest of the keyboardlayout function is up to this change.

Yes, should be ok that way.

Reply 7 of 7, by h-a-l-9000

Posted on 2011-07-26, 19:05

h-a-l-9000 Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 4511
Joined: 2005-02-23, 00:14

keyboardlayout works, keyb still hangs.

1+1=10

Go to top of page Go to top of page

Back to DOSBox Development

Main menu

Common searches