Re: [cc65] interruptor from C?

From: Shawn Jefferson <jefferson_shawn_a8bit1yahoo.com>
Date: 2004-10-12 17:42:50
--- Karri Kaksonen <karri@sipo.fi> wrote:

> I also read the FAQ and found out why the interrupt
> should be in asm.

> The swap_buffers is also a trivial function written
> in asm.

I can't remember, but if swap_buffers uses any of the
zero-page variables (ptr1-3, tmp1-3, etc...) that
might cause some problems calling it in an IRQ
routine.  I suppose that would be the biggest issue
when using C functions in an IRQ.

--
Shawn Jefferson


		
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Received on Tue Oct 12 17:42:54 2004

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