Cassette loading problem

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By Cosmolac

Rookie (22)

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05-03-2016, 06:11

Ive been having trouble loading a cassette game on my cx5m, I type in the command and play the tape and hear it playing if i turn up the volume on my tv a lot then it says "found: (the game's name)" then it goes into the games loading screen and immediately crashes and the operating system boots up again. I have tried a cassette player, a walkman, and a four track recorder for playback, Ive used the cables that came with my system and brand new cables, I tried all the cassette commands and I tried loading a homebrew game i downloaded with my laptop as the audio player but for that game I couldnt even hear the audio when i turned up the volume on the tv and it didnt even get to the "found" part or loading screen. anybody have any idea of what to do?

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By Manuel

Ascended (15686)

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05-03-2016, 11:42

Which game? Perhaps it needs more than 32kB RAM?

By Wild_Penguin

Hero (542)

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05-03-2016, 12:49

Anything could be wrong. Cassette loading is quite error prone, but from what you tell, I'd even suspect a memory fault or something on your CX5M. Usually if a data block fails loading, the MSX would just ignore it (95% of the time) - I have seldom, if ever, have it reboot or crash because of a loading error (sometimes there might be weird clitches, if the game/program somehow managed to run despite the error, but >90% of the time it would just ignore the data block).

Can you run other software (not loaded from cassette) without issues?

Which specific games have you tried loading?

By Cosmolac

Rookie (22)

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05-03-2016, 19:37

I tried loading way of the tiger and hombrew game cubic duel I've had no problem loading cartridges or using the call music function

By Wild_Penguin

Hero (542)

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05-03-2016, 20:13

It never occured to me that your MSX may have less than 64kb of RAM, and I didn't see Manuels post before I posted mine.... that would explain why a lot of cassette games do not work.

Most cartridge games will work with very little RAM (16kb or even 8kb, though no MSX was ever released with 8kb of RAM, I think). I just thought that running cartridges just confirms that there is nothing gravely wrong with your MSX - though being able to run cartridges will not rule out faulty RAM (since cartridges might only use the first few pages of RAM).

At least The Way of the Tiger requires 64kb of RAM. See the releases pictures on that page, on the cover it says "MSX 64kb". So that explains why it causes a "reset" or a crash.

I couldn't find the memory requirements of cubic duel (it seems it was an MSXdev entry) quickly by Googling. It seems it was an MSX Basic game, and looking at the basic listing (in readme.txt!) some guru might be able to say very easily, if it should work with only 32kb of RAM. But the release was on SCC mapper, 64kb format... the cassette release might use that format, too, so that may explain why it doesn't work (despite being a BASIC game)...

By Cosmolac

Rookie (22)

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05-03-2016, 21:08

Thank you for the info! Is there anyway to easily check how much RAM i have?

By zPasi

Champion (440)

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05-03-2016, 22:18

Cosmolac wrote:

Thank you for the info! Is there anyway to easily check how much RAM i have?

That's easy - if you have an unmodified cx5m, it only has 32k. And it's in slot 0, with the bios/basic rom. That may cause problema with some games, even if you insert a memory expansion to slot 1 or 2.

By RetroTechie

Paragon (1563)

RetroTechie's picture

05-03-2016, 22:44

Apart from slot 0, all other primary slots (1,2,3) are module slots on the CX-5M. So unless internally modified to add RAM by re-using/switching one of those external slots, or a RAM cartridge is plugged in, you will have 32K RAM (as zPasi said). There simply isn't any other space in the MSX memory map...

Nice & interesting machine but a poor choice to run tape games on, unfortunately. Sad

By Manuel

Ascended (15686)

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05-03-2016, 23:44

At least one Casio MSX has 8kB RAM.

By mars2000you

Enlighted (5495)

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05-03-2016, 23:46

Manuel wrote:

At least one Casio MSX has 8kB RAM.

Also the Daewoo Zemmix CPC-50A console

By Cosmolac

Rookie (22)

Cosmolac's picture

06-03-2016, 00:17

ah I see, that a little disappointing, I chose it for the fm synth but wouldve much rather had the cx5m ii if I couldve found one for a decent price... If I were to build a simple slot extender with 4 slots for the back would it be possible for me to also build some ram permanently into the extender and get 64?

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