PC-98 MEM command requires a very specific DOS version

[joncampbell123]

Describe the bug

A PC-98 version of MEM.EXE was added, which is nice, but it will only run if the DOS version is set to a very specific value (version 6.20).

Steps to reproduce the behaviour

Start DOSBox-X with machine=pc98.
Type mem.
Observe complaint about DOS version in Japanese.
VER SET 3 30.
Observe complaint about DOS version in Japanese.
VER SET 3 0.
Observe complaint about DOS version in Japanese.
VER SET 6 20.
Program displays memory list.

Expected behavior

Like the IBM PC MEM version from FreeDOS, I expect it to be able to list memory regardless of DOS version, within reasonable limits of course. I don't expect MEM to reliably list memory with a DOS version less than 3.0 but I do expect it to be more flexible than this.

#5059

What operating system(s) this bug have occurred on?

Linux x86_64

What version(s) of DOSBox-X have this bug?

Latest build

Used configuration

[dosbox]
machine=pc98

Output log

No response

Additional information

A link was given to the source code of MEM: https://github.com/lpproj/mem.nec/

If I am able to compile it from source, I can remove the version check. Then use the various PC-98 boot disks to see how well it works on any version of DOS other than 6.20.

Have you checked that no similar bug report(s) exist?

• I have searched and didn't find any similar bug report.

Code of Conduct & Contributing Guidelines

• I agree to follow the code of conduct and the contributing guidelines.

[maron2000]

Sorry for the confusions, but I can't reproduce. Tested the latest nightly VS x64 SDL1.

ver 5.0

ver 6.2

ver 3.3

[maron2000]

I don't get any messages in Japanese.
I suppose you have a MEM.exe in some path in your environment?

Edit: You can confirm the version by mem /? | more.

[joncampbell123]

Now that you mention it, at the root of my DOSBox-X PC-98 configuration I copied MEM.EXE from a MS-DOS 6.20 bootdisk several years ago. I'll remove it and try again. Apologies for blaming your version of MEM.EXE.

[joncampbell123]

It works.