From: "Rémi Denis-Courmont" <remi@remlab.net>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [PATCH] checkasm/riscv: use t0 as alternative link register
Date: Thu, 16 Nov 2023 18:07:00 +0200
Message-ID: <2200755.ighXbuiPgj@basile.remlab.net> (raw)
In-Reply-To: <20231116160451.37296-1-remi@remlab.net>
Le torstaina 16. marraskuuta 2023, 18.04.51 EET Rémi Denis-Courmont a écrit :
> The unprivileged ISA specification says that either RA or T0 should be
> used for this purpose. Other registers may confuse the return address
> prediction stack.
Need more sleep. This is true for the link register (the destination operand),
not the branch target (the source operand). Please ignore.
--
雷米‧德尼-库尔蒙
http://www.remlab.net/
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prev parent reply other threads:[~2023-11-16 16:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-16 16:04 Rémi Denis-Courmont
2023-11-16 16:07 ` Rémi Denis-Courmont [this message]
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