Re: bpf: Propose some new instructions for -mcpu=v4

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Subject: Re: bpf: Propose some new instructions for -mcpu=v4
From: "Jose E. Marchesi" <jose.marchesi@xxxxxxxxxx>
Date: Fri, 10 Feb 2023 00:45:36 +0100
Cc: alexei Starovoitov <ast@xxxxxxxxxx>, Daniel Borkmann <daniel@xxxxxxxxxxxxx>, Andrii Nakryiko <andrii@xxxxxxxxxx>, David Faust <david.faust@xxxxxxxxxx>, James Hilliard <james.hilliard1@xxxxxxxxx>, bpf <bpf@xxxxxxxxxxxxxxx>, Martin KaFai Lau <kafai@xxxxxx>
In-reply-to: <87fsbe8l8n.fsf@oracle.com> (Jose E. Marchesi's message of "Fri, 10 Feb 2023 00:36:24 +0100")
User-agent: Gnus/5.13 (Gnus v5.13)

> 1) In effect you have "moving" opcodes that depend on the endianness.
>    The opcode for signed-operation will be 0x1 in big-endian BPF, but
>    0x8000 in little-endian bpf.

s/0x8000/0x0100/.

(Yeah I'm bad with such things :'D)

References:
- bpf: Propose some new instructions for -mcpu=v4
  - From: Yonghong Song
- Re: bpf: Propose some new instructions for -mcpu=v4
  - From: Jose E. Marchesi

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