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Forums > C64 Coding > Restoring vectors between parts in a trackmo

2015-08-24 17:20

Trap

Registered: Jul 2010
Posts: 223

Restoring vectors between parts in a trackmo

Hi,

So I'm fiddling with Spindle and I am at the point where I need to take a good look at how to make the shift from one part to another. Obviously I have to save the IRQ vectors FFFE/FFFF when I start my part after loading and restore the vectors again when I am done.
Now I wanted to hear if there is anything in particular I need to do other than that?
So the only thing I do when the part is complete is to wait for VSYNC and then restore the old vectors. One thing I have been thinking about is if I should in fact change the vectors in the last part of my existing IRQ. In my logic that would be a smoother/stable approach. I am not sure however and I hope that this thread will save me a headache or two when it comes to final linking.

Thanks.

/Trap

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2015-08-26 06:54

Trap

Registered: Jul 2010
Posts: 223

ok. thanks.

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