From: Fredrik Strupe <fredrik@strupe.net>
To: qemu-devel@nongnu.org, qemu-arm@nongnu.org
Cc: Fredrik Strupe <fredrik@strupe.net>
Subject: [PATCH 1/2] target/arm: Make VQDMULL undefined when U=1
Date: Wed, 8 Apr 2020 13:59:53 +0200 [thread overview]
Message-ID: <20200408115953.1158-1-fredrik@strupe.net> (raw)
According to Arm ARM, VQDMULL is only valid when U=0, while having
U=1 is unallocated.
Signed-off-by: Fredrik Strupe <fredrik@strupe.net>
Fixes: 695272dcb976 ("target-arm: Handle UNDEF cases for Neon 3-regs-different-widths")
---
target/arm/translate.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/target/arm/translate.c b/target/arm/translate.c
index 9f9f4e19e0..dfe9dbbcfd 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -5817,7 +5817,7 @@ static int disas_neon_data_insn(DisasContext *s, uint32_t insn)
{0, 0, 0, 0}, /* VMLSL */
{0, 0, 0, 9}, /* VQDMLSL */
{0, 0, 0, 0}, /* Integer VMULL */
- {0, 0, 0, 1}, /* VQDMULL */
+ {0, 0, 0, 9}, /* VQDMULL */
{0, 0, 0, 0xa}, /* Polynomial VMULL */
{0, 0, 0, 7}, /* Reserved: always UNDEF */
};
--
2.20.1
next reply other threads:[~2020-04-08 14:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-08 11:59 Fredrik Strupe [this message]
2020-04-08 11:59 ` [PATCH 2/2] target/arm: Fail on invalid size for VMUL (float) Fredrik Strupe
2020-04-08 16:27 ` Peter Maydell
2020-04-09 17:36 ` Fredrik Strupe
2020-04-30 15:51 ` [PATCH 1/2] target/arm: Make VQDMULL undefined when U=1 Peter Maydell
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