(Issue #21) Increase Supported Memory to 256MB #131
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Code taken from https://www.vogons.org/viewtopic.php?p=658464#p658464, as part of the DOSBOX SVN fork.
Increase supported memsize to 256MB
Increase supported memsize to 256MB
|
Thanks for your work. Will do some tests on it first. I think it may be useful for people running windows. However, I don't believe that we need to provide extra expand memory. Who are going to use it? |
|
It's useful when running multitasking operating systems, such as Windows, so there is some benefit to increasing the expanded memory. — For those using purely DOS software, however, there may be little benefit. However, having the option to use greater than 64MB expanded memory seems harmless, even if it only serves a subset of users. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Satisfying #21, utilizing the help of code from DOSBOX-SVN, thanks to a helpful VOGONS post, these changes allow the expanded memory to be increased up to 256MB.
Tested on an iPad Air 4 running iOS 15.
iDOS, with
memsize=128, reports 128MB of expanded memory, withBOOTed systems reporting identically 128MB of RAM.iDOS, withmemsize=256, reports 256MB of expanded memory, withBOOTed systems reporting a total of 248MB of RAM. (Note: Unsure of why the discrepancy here, but when set to a lower value, DOSBOX &BOOTed systems match.).iDOS, with
memsize=256, reports 255MB of expanded memory, withBOOTed systems reporting identically 255MB of RAM. Previous statement was erroneous, due to a misconfiguration of a system file. Behavior is similar to that of 64MB versions of iDOS, which will report a total of 63MB available whenmemsizeis>= 64, and is to be expected.