Kyungmin Park <kmp...@infradead.org> writes:
> Hi,
>
> Now I'm trying to use the NEON instruction at u-boot. but it's failed
> and got the data abort.
> Are there any way to use the NEON instruction at u-boot?
No, just like you can't use floating-point.
> The main purpose is to use the neon memcpy as below.
>
> bge 1f
> // copies 4 bytes, destination 32-bits aligned
> vld4.8 {d0[0], d1[0], d2[0], d3[0]}, [r1]!
> vst4.8 {d0[0], d1[0], d2[0], d3[0]}, [r0, :32]!
> 1: bcc 2f
Plain LDR/STR will be just as fast as that.
--
Måns Rullgård
m...@mansr.com
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