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Re: [MiNT] MMU usage in MiNT, fork/mmap
On Fri, 2005-04-08 at 00:06 +0200, Xavier Joubert wrote:
> 9. I just downloaded and took a look at the code. Documentation is dated march
> 1996. I feel suddenly very old.
Yup! I thought so!
> > something similar. Probably lots of ideas we can pull from looking at
> > the Linux and FreeBSD ports to the 68K as well.
>
> Of course. But I understand this one better. I guess I'm the only one. It's ASM.
> Comments and documentation are in french. :(
>
> Nevertheless, I'm quite proud of this. This is my first real project. A whole
> mmap()-like implementation in one 12k ASM source file. Funny to see how close
> my code is to mmap() while I discovered mmap() years later.
I think its things like this that make MiNT and the Atari as efficient
as it is.
> Last time I looked at this (while working on the CT60 design), v4e documentation
> was still not available, and Motorola staff refused to give any information on
> the MMU.
Chapter 5 of MCF5475RM.PDF .. downloadable from the freescale site. If
you have trouble finding it, I can email it to you. I have a copy on my
hard drive.
-- Evan