EMS memory management when less than 64kB is available for frame page \ VOGONS

EMS memory management when less than 64kB is available for frame page

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First post, by ychh0

Posted on 2023-07-11, 02:36

ychh0 Offline

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Location: South Korea

Hello

My laptop has only around 50kB continuous memory for setting frame page when loading drivers for PCMCIA cards.
I wonder if there are any programs/drivers can set EMS memory requiring less than 64kB (for example 32kB) to set frame page. Currently EMM386 cannot set frame page and cannot use EMS momory.

Thanks.

Reply 1 of 3, by rmay635703

Posted on 2023-07-11, 02:46

rmay635703 Offline

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All you can do is move things around to get a 64k segment

EMS memory mystery ?

Reply 2 of 3, by MERCURY127

Posted on 2023-07-16, 10:42

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are you try NOEMS switch?

Reply 3 of 3, by mkarcher

Posted on 2023-07-16, 11:12

mkarcher Offline

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ychh0 wrote on 2023-07-11, 02:36:

I wonder if there are any programs/drivers can set EMS memory requiring less than 64kB (for example 32kB) to set frame page.

This might work with some specific EMS 4.0 drivers/applications. The more common EMS 3.2 specification requires the page frame to have 64KB. Any EMS 4.0 setup that is compatible with EMS 3.2 also provides at least a continous 64KB frame, but might be able to map further pages as well. Most DOS applications that use EMS rely on a classic EMS 3.2 page frame being able to map 4 pages of 16KB each at the same time, and will fail to work properly if no EMS 3.2 page frame is present.

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