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author | Peter Maydell <peter.maydell@linaro.org> | 2020-06-16 18:08:42 +0100 |
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committer | Peter Maydell <peter.maydell@linaro.org> | 2020-06-23 11:39:47 +0100 |
commit | 8ab3a227a0f13f0ff85846f36f7c466769aef4fc (patch) | |
tree | af6a4abeb679c5d31d537d0b35d69be22ba69686 /target/arm/neon-dp.decode | |
parent | a183d5fb38b07bab2a840196186c4806f3c67c0d (diff) | |
download | qemu-8ab3a227a0f13f0ff85846f36f7c466769aef4fc.zip qemu-8ab3a227a0f13f0ff85846f36f7c466769aef4fc.tar.gz qemu-8ab3a227a0f13f0ff85846f36f7c466769aef4fc.tar.bz2 |
target/arm: Convert Neon VSWP to decodetree
Convert the Neon VSWP insn to decodetree. Since the new implementation
doesn't have to share a pass-loop with the other 2-reg-misc operations
we can implement the swap with 64-bit accesses rather than 32-bits
(which brings us into line with the pseudocode and is more efficient).
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200616170844.13318-20-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/neon-dp.decode')
-rw-r--r-- | target/arm/neon-dp.decode | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/target/arm/neon-dp.decode b/target/arm/neon-dp.decode index 5507c3e..2f64841 100644 --- a/target/arm/neon-dp.decode +++ b/target/arm/neon-dp.decode @@ -488,6 +488,8 @@ Vimm_1r 1111 001 . 1 . 000 ... .... cmode:4 0 . op:1 1 .... @1reg_imm VABS_F 1111 001 11 . 11 .. 01 .... 0 1110 . . 0 .... @2misc VNEG_F 1111 001 11 . 11 .. 01 .... 0 1111 . . 0 .... @2misc + VSWP 1111 001 11 . 11 .. 10 .... 0 0000 . . 0 .... @2misc + VUZP 1111 001 11 . 11 .. 10 .... 0 0010 . . 0 .... @2misc VZIP 1111 001 11 . 11 .. 10 .... 0 0011 . . 0 .... @2misc |