From: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
To: qemu-devel@nongnu.org
Cc: rth@twiddle.net
Subject: [Qemu-devel] [PATCH v2 0/5]
Date: Mon, 7 Nov 2016 15:44:40 +0100 [thread overview]
Message-ID: <20161107144445.14069-1-kbastian@mail.uni-paderborn.de> (raw)
Hi,
this series was originally posted by Peer Adelt some time ago[1], but still had
some problems which I tried to fix with this patch set.
The tricky bits here were the FTOUZ and MADD/MSUB.F instructions. The latter
had the problem of not giving back the correct NAN when the result of the
add/sub of muladd/sub was invalid. I addressed that by fixing up the value
later, which feels hacky. I feel the better solution would be extending
softfloat to recognize ADD_NAN's and emitting the correct NAN there. On the
other hand it's a change in softfloat for a small edge case. Any comments on
that?
Additionally this patch set adds the UPDFL instructions.
Cheers,
Bastian
[1] http://lists.nongnu.org/archive/html/qemu-devel/2016-06/msg01936.html
v1 -> v2:
- ftouz: Correctly convert the result from uint32 to f32
Bastian Koppelmann (3):
target-tricore: Added FTOUZ instruction
target-tricore: Added MADD.F and MSUB.F instructions
target-tricore: Add updfl instruction
Peer Adelt (2):
target-tricore: Added new MOV instruction variant
target-tricore: Added new JNE instruction variant
target-tricore/fpu_helper.c | 148 ++++++++++++++++++++++++++++++++++++++-
target-tricore/helper.h | 4 ++
target-tricore/translate.c | 47 +++++++++++++
target-tricore/tricore-opcodes.h | 3 +
4 files changed, 201 insertions(+), 1 deletion(-)
--
2.10.2
next reply other threads:[~2016-11-07 14:45 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-07 14:44 Bastian Koppelmann [this message]
2016-11-07 14:44 ` [Qemu-devel] [PATCH v2 1/5] target-tricore: Added FTOUZ instruction Bastian Koppelmann
2016-11-08 11:36 ` Richard Henderson
2016-11-08 13:37 ` Bastian Koppelmann
2016-11-08 15:06 ` Richard Henderson
2016-11-08 15:12 ` Bastian Koppelmann
2016-11-08 15:25 ` Richard Henderson
2016-11-09 15:46 ` Bastian Koppelmann
2016-11-07 14:44 ` [Qemu-devel] [PATCH v2 2/5] target-tricore: Added MADD.F and MSUB.F instructions Bastian Koppelmann
2016-11-08 11:42 ` Richard Henderson
2016-11-08 15:08 ` Bastian Koppelmann
2016-11-08 15:10 ` Richard Henderson
2016-11-07 14:44 ` [Qemu-devel] [PATCH v2 3/5] target-tricore: Added new MOV instruction variant Bastian Koppelmann
2016-11-08 11:44 ` Richard Henderson
2016-11-07 14:44 ` [Qemu-devel] [PATCH v2 4/5] target-tricore: Added new JNE " Bastian Koppelmann
2016-11-07 14:44 ` [Qemu-devel] [PATCH v2 5/5] target-tricore: Add updfl instruction Bastian Koppelmann
2016-11-08 11:49 ` Richard Henderson
-- strict thread matches above, loose matches on Subject: below --
2011-11-17 13:22 [Qemu-devel] [[PATCH V2] 0/5] Benoît Canet
2011-11-17 16:02 ` Avi Kivity
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