OneChipMSX core based on Kdl diskimage problem

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MIRKOSOFT
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OneChipMSX core based on Kdl diskimage problem

Post by MIRKOSOFT »

Hi!

I downloaded new MSX core with diskimage creator and created VHD which I put into root folder with core file.
Diskimage contains not any BIOS - on project page it allows use default - at boot it hangs.
I added to diskimage also BIOS which is in downloaded package - problem the same.
It is possible to use only OSD menu.

Can anybody explain me where do I mistake?

Thank you for all.
Miro

hyperterminal
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Re: OneChipMSX core based on Kdl diskimage problem

Post by hyperterminal »

The problem is that you did not create the VDH image properly. A BIOS file is required and must be the very first file written to the disk, even before any Windows created files. Use the archive "20190520 OCM-SDBIOS Pack v2.6 by KdL" from KdL's website which contains a batch file for writing the required files to the SD card.

DanyPPC
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Re: OneChipMSX core based on Kdl diskimage problem

Post by DanyPPC »

Use > this < 512MB MSX.VHD file prepared by me on Windows 7 x64.
I find compatibility problem on create a standard msx vhd file from Window 10. No way !

Or the MSX core does not handle the vhd files generated by the last Microsoft operating system :shrug:

slingshot
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Re: OneChipMSX core based on Kdl diskimage problem

Post by slingshot »

I found the BIOS loader is very picky. It doesn't load even from a Linux mkfs.vfat formatted filesystem. Maybe it could be improved. It's in pure Z80 assembly. VHD or direct SD card access - it doesn't matter, the core doesn't know the difference.

MIRKOSOFT
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Re: OneChipMSX core based on Kdl diskimage problem

Post by MIRKOSOFT »

Thank you!

Diskimage works.
Miro

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