[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [MiNT] how to compile stik/sting stuff with gcc4



On Mon, 1 Feb 2010, Helmut Karlowski wrote:

Of course the 1-byte-push is ok as long as it stays inside pure-c, but then it can happen that addresses of function-arguments become odd.

As far as I know a7 will always be even, so for example doing
move.b d0,(a7)+ will increment a7 by 2.

It's a trick some people use for soundmixing STe-stereo a bit faster.

--
Anders Eriksson
ae@dhs.nu     http://www.dhs.nu/
ae@atari.org  http://www.atari.org/