Core MSX1 by Fabio Belavenuto ported to MiSTer by Yo_Me and Benitoss

[tontonkaloun]

Hello @tontonkaloun.

I have read the whole thread about MSX and I confirm that the files you shared work without problems.

The first VHD image you have created is 16 Mb and the second about 65 Mb, but I wanted to know how you created them, because I am interested in making a larger image. I can't do it with the indications in the thread.

Thanks and best regards

TxarlyM

you missed the third
https://www.swisstransfer.com/d/9e8f570 ... 9f8eba36b6

It's just an SD image renamed to vhd with the two necessary files indicated by Ron

Hello @tontonkaloun

Thanks for sharing the last file. It works perfectly.

According to what the thread says, an image must be generated in FAT16 and then renamed to VHD. There are other forums that argue that the format must be FAT12. Anyway, there are many applications that generate images, but not all of them work. What application do you use to generate the images?

Regards

TxarlyM

Hello
No it must be in fat16, this is the first msx
Just open the vhd with software for sd image file.

[fpganoob]

Nextor supports Fat12 and Fat16, but the loader only supports Fat 16 Id 0x04 or 0x06.
Latest Windows only make format Fat16 Id 0x0E, in these SO you must use a thirdy party software.

[TxarlyM]

Nextor supports Fat12 and Fat16, but the loader only supports Fat 16 Id 0x04 or 0x06.
Latest Windows only make format Fat16 Id 0x0E, in these SO you must use a thirdy party software.

Thanks @fpganoob

So .... what application should be used to generate this image files?

TxarlyM

[tontonkaloun]

Nextor supports Fat12 and Fat16, but the loader only supports Fat 16 Id 0x04 or 0x06.
Latest Windows only make format Fat16 Id 0x0E, in these SO you must use a thirdy party software.

Thanks @fpganoob

So .... what application should be used to generate this image files?

TxarlyM

I made it from Windows 10. Either you start from an sd image that you reformat, or you create the image of an sd card (if you have an old sd card ...). I didn't use any particular program. The most important is the formatting (fat16) and the two files.

Tip: If your disk is too big you will not have the correct formatting

[tontonkaloun]

Nextor supports Fat12 and Fat16, but the loader only supports Fat 16 Id 0x04 or 0x06.
Latest Windows only make format Fat16 Id 0x0E, in these SO you must use a thirdy party software.

my brain had read fat32 and not fat12 !
you're right!

[tontonkaloun]

● 0x01 FAT12
● 0x04 FAT16, less than 32 MB
● 0x06 FAT16, greater than 32 MB
● 0x07 NTFS
● 0x0B FAT32, used by DOS & Win95
● 0x0C FAT32 using LBA mode to access to FAT32 partition
● 0x0E FAT16 using LBA mode to access to FAT16 partition

[tontonkaloun]

you can use diskpart to change partition type ID:

set id=06

[ron]

Here we go, Beta 4-

MSX1-Beta4.rbf.zip

(897.81 KiB) Downloaded 312 times

SDRam upgrade. Seems to work fine. Let's test !

[Alkadian]

Cool! Thanks for the heads up Ron!

[kathleen]

Thank you Ron, I've just tried the new beta version and I have the same issue than with the Beta 03, this update does not work on my Mister, I have graphic issues at the MSX boot screen and the VHD does not load at all. The Beta 02 works fine without having this kind of problem. Any idea where this comes from ?

[tontonkaloun]

Maybe a sdram problem ?!!
This version of the core works very well for me !!

[kathleen]

It was my though also. An incompatibility with the SDRAM but what is weird is that I've no issue with any other cores, even the MSX1 beta 02 works fine, I'm wondering what has changed between the MSX1 beta02 and 03-04 which could cause this. On the other hands, if this issue happens only on my side, well, I would suspect also something wrong on my side But so far, I've no clue.

[fpganoob]

Changes from Beta 02 to 03 and 04 are just sdram stuff.
Beta 02 had more problems than Beta 03 or 04, but these still had some users with problems, just like you @Kathleen.
By now, with Beta 04, just one user has some type of problems, but can make the core works once "warmed", and you that cannot even start the vhd.
It's a recent Beta, still more people have to test it in order to have significant numbers.

Have you tried with the external sd? It's the same behavior?

[kathleen]

Thank you for your explanations @fpganoob
Will try by tomorrow with and external SD. So far I did only test with the *.VHD placed in the internal SD card.

[Alkadian]

Hi guys,
Just to confirm that the new beta 4 is working fine with me. I have just tested my favourite games and no issues at all.

[fpganoob]

Another try with the sdram...

Test and Tell us!!

[kathleen]

Thank you fpganoob, I'm going to try it in a couple of minutes and let you know. Just for information, I've just tested the previous Beta04 (and the 03) by using an external SD card as you advised me, and I ended to the same issue than using them by having the boot.vhd in internal SD. Both don't work on my Mister, only the Beta02 works.

[kathleen]

@fpganoob,
I've just tried the Beta4.01 and it doesn't work neither on my side. Tested with both external and internal SD. Same problem graphic issue and randomly I have a reboot or I have a message telling me that the version of the command2.com is wrong.

[fpganoob]

I'm sorry, that's a strange behavior. It must be related to sdram, cause it's the only changes between this and Beta02.

We will continue trying.
Thanks for testing!!

[tontonkaloun]

This new version works fine on my Mister

[fpganoob]

Yes, it seems we are not breaking nothing... but neither fixing...

[Fallon]

4.01 Works fine here.

Loving this core, Kings Valley 2 is a must play!

[ron]

@fpganoob, great to see you here ! Sure, we'll try to help kathleen and other people with 128MB SDRAM and find a fix for all.

[tontonkaloun]

I have 128 mb of sdram.

[Alkadian]

I have 128 mb of sdram.

Same here. 128 mb sdram.

[rcade]

All versions work for me, but I have the VHD on network mount of the entire "GAMES" folder. Not stored on SD. 32M RAM.

[fpganoob]

@kathleen Do you mind to test?
Everyone is welcome to test it, specially if you have problems with Beta > 2

[kathleen]

@fpganoob,
I've just tried the Beta02 and you know what ? This issue works like a charm now on my Mister ! I'm so happy.
Thank you so much, really appreciate your help and your great work !

[ron]

Nice to hear that works.
I think now will work with any SDRAM !
Test and Feedback , pease.

[tontonkaloun]

This new version works very well on my mister