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From: Segher Boessenkool <segher@kernel.crashing.org>
To: Daniel Axtens <dja@axtens.net>
Cc: linuxppc-dev@lists.ozlabs.org, llvmlinux@lists.linuxfoundation.org
Subject: Re: [RFC PATCH 5/8] poweprc/lib/quad: Provide macros for lq/stq
Date: Thu, 25 Feb 2021 09:44:44 -0600	[thread overview]
Message-ID: <20210225154444.GF28121@gate.crashing.org> (raw)
In-Reply-To: <20210225031006.1204774-6-dja@axtens.net>

On Thu, Feb 25, 2021 at 02:10:03PM +1100, Daniel Axtens wrote:
> +#define PPC_RAW_LQ(t, a, dq)		(0xe0000000 | ___PPC_RT(t) | ___PPC_RA(a) | (((dq) & 0xfff) << 3))

Please keep the operand order the same as for the assembler insns?  So
t,dq,a here.

It should be  ((dq) & 0x0fff) << 4)  .

> +#define PPC_RAW_STQ(t, a, ds)		(0xf8000002 | ___PPC_RT(t) | ___PPC_RA(a) | (((ds) & 0xfff) << 3))

And t,ds,a here.  (But it should use "s" instead of "t" preferably, and
use ___PPC_RS, because it is a source field, not a target).

It should be  ((ds) & 0x3fff) << 2)  as well.


Segher

  reply	other threads:[~2021-02-25 15:47 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-25  3:09 [RFC PATCH 0/8] WIP support for the LLVM integrated assembler Daniel Axtens
2021-02-25  3:09 ` [PATCH 1/8] powerpc/64s/exception: Clean up a missed SRR specifier Daniel Axtens
2021-02-25  3:10 ` [RFC PATCH 2/8] powerpc: check for support for -Wa,-m{power4,any} Daniel Axtens
2021-03-19  1:32   ` [RFC PATCH 2/8] powerpc: check for support for -Wa, -m{power4, any} Nicholas Piggin
2021-03-19 10:53     ` Michael Ellerman
2021-02-25  3:10 ` [RFC PATCH 3/8] powerpc/head-64: do less gas-specific stuff with sections Daniel Axtens
2021-03-19  1:35   ` Nicholas Piggin
2021-02-25  3:10 ` [RFC PATCH 4/8] powerpc/ppc_asm: use plain numbers for registers Daniel Axtens
2021-02-25 15:25   ` Segher Boessenkool
2021-02-26  0:12     ` Daniel Axtens
2021-03-19  1:39       ` Nicholas Piggin
2021-02-25  3:10 ` [RFC PATCH 5/8] poweprc/lib/quad: Provide macros for lq/stq Daniel Axtens
2021-02-25 15:44   ` Segher Boessenkool [this message]
2021-02-26  0:13     ` Daniel Axtens
2021-02-25  3:10 ` [RFC PATCH 6/8] powerpc/mm/book3s64/hash: drop pre 2.06 tlbiel for clang Daniel Axtens
2021-03-19  2:01   ` Nicholas Piggin
2021-03-22 16:49     ` Christophe Leroy
2021-03-22 18:11       ` Nicholas Piggin
2021-03-24 15:51         ` Segher Boessenkool
2021-03-24 21:07           ` Segher Boessenkool
2021-02-25  3:10 ` [RFC PATCH 7/8] powerpc/purgatory: drop .machine specifier Daniel Axtens
2021-02-25 15:58   ` Segher Boessenkool
2021-02-26  0:17     ` Daniel Axtens
2021-03-19  2:05     ` Nicholas Piggin
2021-03-19 10:59       ` Michael Ellerman
2021-02-25  3:10 ` [RFC PATCH 8/8] powerpc/64/asm: don't reassign labels Daniel Axtens
2021-02-25 16:08   ` Segher Boessenkool
2021-02-26  0:28     ` Daniel Axtens
2021-03-19  2:15       ` Nicholas Piggin
2021-03-14 10:01 ` [RFC PATCH 0/8] WIP support for the LLVM integrated assembler Michael Ellerman

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