Start OpenMSX with MSX-DOS support

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By MsxKun

Paragon (1100)

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24-05-2022, 22:42

Same going to Disk Basic from MSX-DOS prompt.

By MsxKun

Paragon (1100)

MsxKun's picture

24-05-2022, 22:44

Manuel wrote:

Ah, when I use the openMSX IDE extension + memory mapper on an MSX1, MSX-DOS2 does boot indeed Smile Not sure why though, perhaps the emulated mapper initializes itself? And apparently your mapper did too?

It's probably sorcery Big smile
I think it's the DiskROM who looks for the RAM and if it finds a mapper, it initializes it.

By gdx

Enlighted (5486)

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25-05-2022, 02:26

MsxKun wrote:

A RAM mapper. When I put my 4MB RAM card on the 20P I also used my CF-IDE interface with DOS2. All very fine.

Wrong! CF-IDE interface uses a patched MSX-DOS2. This patch makes it work but not everything works very fine. For example, if you enter MODE 80, you will have the text displaying incorrectly.

MsxKun wrote:

It's convenient to use FAT16 patch by Okei specially with Multimente Smile

It works but the CF-IDE interface supports bably the FAT16 with its original Rom-disk. It has a bug that makes not possible to fill more than half of the partitions. It only works well with the Nextor driver. These issues are noted in the wiki.

https://www.msx.org/wiki/Sunrise_CF_ATA-IDE

By MsxKun

Paragon (1100)

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25-05-2022, 15:24

LPEMMC-SD also works with MSX-DOS2. But I think CF worked better. Patch can be a simple mapper initializing routine.

You don't need to enter Mode 80, it's not mandatory.
The SD cards I had to use on several machine were autoexec.bat-less to don't start MODE 80 and/or Multimente, unlike the ones I used to bigger things, who had it.

I have not much complains with CF-IDE. It can even play EVA files. Those are the MSX-DOS2 I have access, CF and LPEMMCSD. The good old ones, won't find any on my hands. Pretty much easier to flash any MSX-DOS2 version you want, patched or not, on a normal FlashROM cartridge. Or Nextor if you prefer. Never used it, my stuff is quite obsolete Tongue

By gdx

Enlighted (5486)

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25-05-2022, 16:01

The patch just removes the condition on the adresse 002Dh from the Bios.
I use the Sunrise CF interface with Nextor 2.1.1 beta 2. It is much better with Sunrise's original ROM with the patched MSX-DOS2. Apart from the fact that the slave slot is no longer usable. CD-ROM drives are not usable too but I have never used it on MSX.

By MsxKun

Paragon (1100)

MsxKun's picture

25-05-2022, 16:17

gdx wrote:

The patch just removes the condition on the adresse 002Dh from the Bios.

Ever simpler then Smile Usually the best solutions are the simplest ones.

Quote:

I use the Sunrise CF interface with Nextor 2.1.1 beta 2. It is much better with Sunrise's original ROM with the patched MSX-DOS2. Apart from the fact that the slave slot is no longer usable. CD-ROM drives are not usable too but I have never used it on MSX.

Meh, I used CD when I got the normal IDE, at first. (wich I still have, now you say it, I should sell it, cause never used it anymore, having the CF one) But well, quite pointless having an CF card and almost zero soft on CD Sad I never tried the Knightmare Gold I think.

Haha, in the end, I lost the point about what the original poster wanted to achieve Running Naked in a Field of Flowers

By Manuel

Ascended (18781)

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25-05-2022, 23:52

I had a CD-ROM player connected to my Gouda SCSI interface and I only used it to view photos from it Smile (JPEG files.)

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