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From: bugzilla-daemon@libre-soc.org
To: libre-riscv-dev@lists.libre-riscv.org
Subject: [libre-riscv-dev] [Bug 339] create POWER9 ROTATE pipeline
Date: Fri, 22 May 2020 17:41:11 +0000
Message-ID: <bug-339-13-5TPEzhTPaI@https.bugs.libre-soc.org/> (raw)
In-Reply-To: <bug-339-13@https.bugs.libre-soc.org/>

https://bugs.libre-soc.org/show_bug.cgi?id=339

--- Comment #1 from Luke Kenneth Casson Leighton <lkcl@lkcl.net> ---
examining the shift operations, they generate CR0, and optionally the
Arithmetic ones will set CA and also read carry in.

do the Arith Shift also set the overflow flag?

microwatt does not have OV set, which tends to suggest that we can drop XER.SO
from the output regspec for this pipeline.

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  parent reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-22 17:27 [libre-riscv-dev] [Bug 339] New: " bugzilla-daemon
2020-05-22 17:27 ` [libre-riscv-dev] [Bug 339] " bugzilla-daemon
2020-05-22 17:41 ` bugzilla-daemon [this message]
2020-05-22 19:07 ` bugzilla-daemon
2020-06-01 12:40 ` [libre-riscv-dev] [Bug 339] create POWER9 ROTATE (SHIFTROT) pipeline bugzilla-daemon
2020-06-01 18:09 ` bugzilla-daemon
2020-06-01 19:31 ` bugzilla-daemon
2020-06-01 20:13 ` bugzilla-daemon
2020-06-01 20:17 ` bugzilla-daemon
2020-06-07 14:32 ` bugzilla-daemon
2020-06-08 18:37 ` bugzilla-daemon

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