PPC beginner questions

Grant Likely grant.likely at secretlab.ca
Tue Aug 22 01:38:08 EST 2006

On 8/21/06, Wade Maxfield <wmaxfield at gmail.com> wrote:
> Hi Grant,
>   Thanks!
>   in*
>   out*
>   I'm assuming inb() outb(), inw() outw()??  I've been googling and have
> come up short with info that makes sense. It is almost all x86 centric.

in_8, in_be16, in_be32, out_8, out_be16, out_be32 for big-endian
device registers
in_8, in_le16, in_le32, out_8, out_le16, out_le32 for little endian
device registers

>   We will not be porting these drivers, this is a captive box internal use
> only, limited run (200 units or so), 10 to 20 year lifespan once it hits the
> field.
>   So, the virtual address I get back can be used directly.  Can I cast to
> short * and long * and char *?

heh, yes you can; but if your writing new code why not use good
practice from the start?  :)

>    I apologize for the basic questions, but I expect this will be a final
> question for quite some time.

No worries; ask away!


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Grant Likely, B.Sc. P.Eng.
Secret Lab Technologies Ltd.
grant.likely at secretlab.ca
(403) 399-0195

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