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Creating/running MSX dsks #4354 10/03/04 07:30 AM
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samwise Offline OP
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Hi,

I've tracked down an MSX game I want to run. I've extracted a .bin file from the original .pma archive format and then created a .dsk image using DiskMgr V0.08, downloaded from the net.

The resultant .dsk can be successfully run in RuMSX, an MSX emulator.

When I try to use it in MS, I find that the msx.rom file I have does not seem to pass the checksum. The MSX machine won't therefore load. Is that to be expected?

If I, instead, try to load it into the MSX2 system, it boots the system but complains about a disk i/o error when I attempt to run the binary. Is this actually a problem with the disk image or is it the msx driver? I ask because it says at the very bottom of this page, that disk i/o errors might be reported for other errors:

http://www.mess.org/sysinfo/msx.htm

I'd be very grateful if anyone could shed some light on the use of the MSX systems as I'm a bit stuck now. Should I just be accepting that MESS can't yet handle the program I'm trying to run?

Sam.

Re: Creating/running MSX dsks #4355 10/03/04 09:31 PM
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samwise Offline OP
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Bad form to reply to one's own post but it doesn't look there's going to be much activity on this thread (!)

I have managed to find a .dsk image which does appear to load into the MSX2 driver. Somewhat surprisingly (for me, anyway), the MSX-DOS prompt complains with "Disk error reading drive A" when reading the image. However, if I tell it to retry twice in a row, it eventually runs the program. That seems somewhat weird!

Sam.

Re: Creating/running MSX dsks #4356 10/04/04 12:53 AM
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Justin Offline
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What program did you use to extract the .pma? I have some stuff in that format I haven't been able to use.

As for msx.rom, if the MSX driver complains but it works in MSX2, then it's a pretty good bet that's actually an MSX2 ROM :p

I think MSX requires a disk ROM too if you want to use the disk drive. Try getting a complete BIOS set from a MESS BIOS site.

Re: Creating/running MSX dsks #4357 10/05/04 12:12 AM
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samwise Offline OP
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Hi,

Yeah, the PMA archive did stump me for a while, but I'm quite persistent when I put my mind to it. smile

This page [http://www.faq.msxnet.org/suffix.html#PMA] proved most useful and led me to this command-line tool:

http://www.funet.fi/pub/msx/othersys/pmarc-pc.arj

I tried the PMEXT.COM tool first but it seemed to balk at the .pma I was playing with. The one above coped with it, tho. Hope that's of use.

As for the bios' - I downloaded all the msx related ones through geocities.com/messroms/ (and the site it links to). But when I run an "audit all systems" within mess, I get 12 failures, including msx.rom's checksum. I think it's because that site is only up to date with 0.81 mess bios roms. Can you recommend an alternative site where I can update my collection of bios'? If not on the message board, perhaps by email? I'd love to play with the original MSX as well as the MSX2!

Cheers,

Sam.

Re: Creating/running MSX dsks #4358 10/05/04 12:43 AM
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samwise Offline OP
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Ahah. Bad form, twice in the same thread (!)

Ack. But more persistence has turned up a link off geocities.com/messroms which points to an updated repository.

I'm off to play with MSX now ...

Sam.

Re: Creating/running MSX dsks #4359 10/05/04 01:40 AM
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samwise Offline OP
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Man, I'm talking to myself!

Sorry for this, but I got stuck with the disk.rom.

I have 3 or 4 different versions but none of them seem to load. Dropping out to the command line, I get:

C:\Progra~1\mess087b>mess msx -cart disk.rom
Driver reports load for cartridge device failed
Ensure image is valid and exists and (if needed) can be created
Unable to initialize machine emulation

C:\Progra~1\mess087b>

Looking at this bug report here:

http://bugzilla.mess.org/show_bug.cgi?id=460

and these pages here:

http://www.msxnet.org/mess/news
http://www.msx.org/forumtopic1487.html

they seem to suggest I need a disk.rom which is listed in msx.crc (where's this file??).

I can't seem to find such a disk.rom file in what I think is my complete bios.rom set (the only disk.rom is in the msx2.zip file and that doesn't work). Searching the archives, does come up with some discussion of this topic but nothing which has helped me work out where to start looking for a new disk ROM ... frown

Sam.

Re: Creating/running MSX dsks #4360 10/05/04 02:03 AM
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Quote:
they seem to suggest I need a disk.rom which is listed in msx.crc (where's this file??).
The msx.crc and all other crc files have been replaced with an xml type file about 6 months ago. Those can be found in the hash directory of mess. The msx.crc was converted to msx.hsi.

As for the rest of your problems, I don't know anything about MSX.

Re: Creating/running MSX dsks #4361 10/05/04 02:19 AM
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Ah, right. Thanks for that.

How can I check what the crc is of the files I'm trying to load?

Anyone any idea how I'd go about finding one listed in the .hsi (nee crc) file?

Sam.

Re: Creating/running MSX dsks #4362 10/05/04 03:53 AM
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samwise Offline OP
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Bingo! It turns out WinRAR shows the CRC of files if they're in a RAR or ZIP archive. From that, I was able to find a copy of disk.rom which works with MESS. It took a bit longer to work out how to get MESS to load it, but I eventually figured out double-clicking it in the GUI seems to do the trick ... smile

Anyway, I think I'm happy. Altho, I think the MSX2's speed actually feels better with what I'm playing with. Intriguing ...

Sam.

Re: Creating/running MSX dsks #4363 10/05/04 11:04 PM
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I think disk.rom just needs to be in the BIOS ZIP, i.e. not specified in the GUI or on the command-line, but then I haven't really used the MSX emulation. I just know it was a bitch getting the right disk.rom because they kept changing it every version smile

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