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From: David Gibson <david@gibson.dropbear.id.au>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: farosas@linux.ibm.com, qemu-devel@nongnu.org,
	lucas.araujo@eldorado.org.br, fernando.valle@eldorado.org.br,
	qemu-ppc@nongnu.org, matheus.ferst@eldorado.org.br,
	luis.pires@eldorado.org.br
Subject: Re: [PATCH v3 4/9] target/ppc: overhauled and moved logic of storing fpscr
Date: Tue, 25 May 2021 13:15:41 +1000	[thread overview]
Message-ID: <YKxr3TXsYbh58/M4@yekko> (raw)
In-Reply-To: <1d9a521f-4f1a-e91b-fe1a-4f0e14cebd6c@linaro.org>

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On Mon, May 24, 2021 at 07:01:20PM -0700, Richard Henderson wrote:
> On 5/21/21 1:17 PM, Bruno Larsen (billionai) wrote:
> > +    uint32_t mask = 1u << bit;
> > +    if (env->fpscr & mask) {
> > +        ppc_store_fpscr(env, env->fpscr & ~mask);
> 
> Oops, missed this during review but:
> 
>   fpscr & ~(target_ulong)mask;
> 
> Otherwise we clear high bits of fpscr incorrectly.

Oops, good point.  I've removed the previous version from ppc-for-6.1,
and I'll wait for a respin.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

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  reply	other threads:[~2021-05-25  3:50 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-21 20:17 [PATCH v3 0/9] target/ppc: add support to disable-tcg Bruno Larsen (billionai)
2021-05-21 20:17 ` [PATCH v3 1/9] target/ppc: cleaned error_report from ppc_store_sdr1 Bruno Larsen (billionai)
2021-05-24  2:36   ` David Gibson
2021-05-21 20:17 ` [PATCH v3 2/9] target/ppc: moved ppc_store_lpcr and ppc_store_msr to cpu.c Bruno Larsen (billionai)
2021-05-24  2:37   ` David Gibson
2021-05-21 20:17 ` [PATCH v3 3/9] target/ppc: reduce usage of fpscr_set_rounding_mode Bruno Larsen (billionai)
2021-05-24  2:38   ` David Gibson
2021-05-21 20:17 ` [PATCH v3 4/9] target/ppc: overhauled and moved logic of storing fpscr Bruno Larsen (billionai)
2021-05-24  2:41   ` David Gibson
2021-05-25  2:01   ` Richard Henderson
2021-05-25  3:15     ` David Gibson [this message]
2021-05-21 20:17 ` [PATCH v3 5/9] target/ppc: removed unnecessary inclusion of helper-proto.h Bruno Larsen (billionai)
2021-05-24  2:41   ` David Gibson
2021-05-21 20:17 ` [PATCH v3 6/9] target/ppc: moved ppc_cpu_do_interrupt to cpu.c Bruno Larsen (billionai)
2021-05-24  2:57   ` David Gibson
2021-05-25  2:11   ` Richard Henderson
2021-05-21 20:17 ` [PATCH v3 7/9] target/ppc: Added options to disable many TCG-only functions Bruno Larsen (billionai)
2021-05-24  3:01   ` David Gibson
2021-05-21 20:17 ` [PATCH v3 8/9] target/ppc: created tcg-stub.c file Bruno Larsen (billionai)
2021-05-24  3:02   ` David Gibson
2021-05-24 12:54     ` Bruno Piazera Larsen
2021-05-21 20:17 ` [PATCH v3 9/9] target/ppc: updated meson.build to support disable-tcg Bruno Larsen (billionai)
2021-05-25  2:13   ` Richard Henderson

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