Megarom bank switching affecting RAM?

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Por thegeps

Paladin (863)

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12-03-2021, 19:06

yes!!!!
it worked!
soon I'll be able to post the Freed0m Fighter new prologue video (I still have to redraw the last pic)

Por Daemos

Paragon (1952)

Imagen del Daemos

12-03-2021, 20:43

Good job. I was suspecting this problem too. Debugging can be fun once you are on track of the cause. Eager to see what you are cooking.

Por thegeps

Paladin (863)

Imagen del thegeps

12-03-2021, 22:24

Well, I'm working to release a physical version of Freedom Fighter. The game will be the same (planning to further adjust playability). Actually I'm redrawing prologue gfx (I did the prologue few days before the msxdev'20 deadline so I hadn't enough time to do my best). And I have to draw epilogue gfx (actually when you beat the game there is only a credits scroller with a playing background music. I have in mind a post credit sequence too (like marvel does in MCU movies)

And I have to try Santi's MDL on my code too...

In the meanwhile a flashable 2MB cartridge is traveling to my home, so I will able to do some tests: I'm thinking about moving all levels' background musics in the same 16KB page. I think that during ISR is safe to switch the page, call the replayer and switch back to active one. In this way I can free room in each page and I'll be able to add some enemies' attack pattern instead of reusing some boss pattern...

Por Bengalack

Champion (406)

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14-03-2021, 19:38

thegeps wrote:

a flashable 2MB cartridge is traveling to my home

How does this work? Is it like real HW, and where you write and erase EPROMs? Where you need external eprom burner and stuff?

Pardon my ignorance Smile

Por Daemos

Paragon (1952)

Imagen del Daemos

14-03-2021, 19:40

Quote:

How does this work? Is it like real HW, and where you write and erase EPROMs? Where you need external eprom burner and stuff?

Its even better. Its a cartridge that has dos and sdcard storage on board. You can flash any rom or disk into it and play the hell out of it. So you pop it into your msx, select your rom to play, it flashes it and there you go.

Por Bengalack

Champion (406)

Imagen del Bengalack

14-03-2021, 19:59

Daemos wrote:

You can flash any rom or disk into it and play the hell out of it. So you pop it into your msx, select your rom to play, it flashes it and there you go.

Ok, so that's how it works Smile Thanks.

Por thegeps

Paladin (863)

Imagen del thegeps

14-03-2021, 22:42

Nope, I already have a SD mapper and a Carnivore 2: with these 2 cartridges I can do what Daemos said. The one traveling to my home is a real harfware cartridge, that has a real bank switching and where I can flash the rom (and after a poll to know how many people are interested sell it).
To flash the cartridge is enough a MSX with msxdos. There is a flashing software. The cartridge has to be inverted in a slot and that's it. Even a msx1 is enough, if you have a SD mapper cartridge. Boot to dos and launch the program from the sd like it is a disk

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