-------- Original Message --------
Subject: Re: Simple question about powerpc kernel source.
From: Benjamin Herrenschmidt <b...@kernel.crashing.org>
To: HongWoo Lee <hongw...@gmail.com>
Cc: linuxppc-dev@lists.ozlabs.org
Date: Mon Jul 20 2009 19:02:38 GMT+0900
On Mon, 2009-07-20 at 18:00 +0900, HongWoo Lee wrote:
Hi all,
I have something to ask for the ppc kernel source.
#define LOADADDR(rn,name) \
lis rn,nam...@highest; \
ori rn,rn,nam...@higher; \
rldicr rn,rn,32,31; \
oris rn,rn,nam...@h; \
ori rn,rn,nam...@l
Is ## used for concatenation. I'm not sure because it is just meaningless.
If so what on earth is the result of concatenating ?
And is there a good reference to understand powerpc asm ?
I'm reading Power ISA, but I can't find @highest, @higher and ##.
It would be good to know the reference book.
You already asked pretty much the same question with the subject "Simple
question about powerpc asm" and it was already replied to.
Cheers,
Ben.
Thank you, Ben.
First, I aleady understood about @highest, @higher, @h and @l.
For now, what I want to know is about "##" in the below code.
#define LOADADDR(rn,name) \
lis rn,nam...@highest; \
ori rn,rn,nam...@higher; \
rldicr rn,rn,32,31; \
oris rn,rn,nam...@h; \
ori rn,rn,nam...@l
And I don't want to ask every detail.
So I want to know the manual or document which describes the detail.
Regards,
HongWoo.
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