Re: [PATCH 1/2] arm64: bpf: add 'store immediate' instruction
From: Shi, Yang
Date: Mon Nov 23 2015 - 14:35:08 EST
Hi folks,
Any more comments on this patch (store immediate only)?
I need more time to add XADD (I'm supposed everyone agrees it is
equivalent to atomic_add). However, this one is irrelevant to XADD, so
we may be able to apply it first?
Thanks,
Yang
On 11/12/2015 7:45 PM, Z Lim wrote:
On Thu, Nov 12, 2015 at 11:33 AM, Shi, Yang <yang.shi@xxxxxxxxxx> wrote:
On 11/11/2015 4:39 AM, Will Deacon wrote:
Wait a second, we're both talking rubbish here :) The STR (immediate)
form is referring to the addressing mode, whereas this patch wants to
store an immediate value to memory, which does need moving to a register
first.
Yes, the immediate means immediate offset for addressing index. Doesn't mean
to store immediate to memory.
I don't think any load-store architecture has store immediate instruction.
Indeed. Sorry for the noise.
Somehow Will caught a whiff of whatever I was smoking then :)
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