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| author | Peter Maydell <peter.maydell@linaro.org> | 2020-09-03 14:32:09 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2020-09-14 14:23:19 +0100 |
| commit | d186a4854c04e9832907b0b4240a47731da20993 (patch) | |
| tree | c62d77dcadfce7f43e32348f820cebde84fe396d /target/arm/neon-shared.decode | |
| parent | 0ae715c658a02af1834b63563c56112a6d8842cb (diff) | |
| download | qemu-d186a4854c04e9832907b0b4240a47731da20993.zip qemu-d186a4854c04e9832907b0b4240a47731da20993.tar.gz qemu-d186a4854c04e9832907b0b4240a47731da20993.tar.bz2 | |
target/arm: Convert VCMLA, VCADD size field to MO_* in decode
The VCMLA and VCADD insns have a size field which is 0 for fp16
and 1 for fp32 (note that this is the reverse of the Neon 3-same
encoding!). Convert it to MO_* values in decode for consistency.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200903133209.5141-4-peter.maydell@linaro.org
Diffstat (limited to 'target/arm/neon-shared.decode')
| -rw-r--r-- | target/arm/neon-shared.decode | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/target/arm/neon-shared.decode b/target/arm/neon-shared.decode index f297ba8..a9d0108 100644 --- a/target/arm/neon-shared.decode +++ b/target/arm/neon-shared.decode @@ -34,11 +34,17 @@ %vd_dp 22:1 12:4 %vd_sp 12:4 22:1 -VCMLA 1111 110 rot:2 . 1 size:1 .... .... 1000 . q:1 . 0 .... \ - vm=%vm_dp vn=%vn_dp vd=%vd_dp +# For VCMLA/VCADD insns, convert the single-bit size field +# which is 0 for fp16 and 1 for fp32 into a MO_* constant. +# (Note that this is the reverse of the sense of the 1-bit size +# field in the 3same_fp Neon insns.) +%vcadd_size 20:1 !function=plus1 -VCADD 1111 110 rot:1 1 . 0 size:1 .... .... 1000 . q:1 . 0 .... \ - vm=%vm_dp vn=%vn_dp vd=%vd_dp +VCMLA 1111 110 rot:2 . 1 . .... .... 1000 . q:1 . 0 .... \ + vm=%vm_dp vn=%vn_dp vd=%vd_dp size=%vcadd_size + +VCADD 1111 110 rot:1 1 . 0 . .... .... 1000 . q:1 . 0 .... \ + vm=%vm_dp vn=%vn_dp vd=%vd_dp size=%vcadd_size # VUDOT and VSDOT VDOT 1111 110 00 . 10 .... .... 1101 . q:1 . u:1 .... \ @@ -51,9 +57,9 @@ VFML 1111 110 0 s:1 . 10 .... .... 1000 . 1 . 1 .... \ vm=%vm_dp vn=%vn_dp vd=%vd_dp q=1 VCMLA_scalar 1111 1110 0 . rot:2 .... .... 1000 . q:1 index:1 0 vm:4 \ - vn=%vn_dp vd=%vd_dp size=0 + vn=%vn_dp vd=%vd_dp size=1 VCMLA_scalar 1111 1110 1 . rot:2 .... .... 1000 . q:1 . 0 .... \ - vm=%vm_dp vn=%vn_dp vd=%vd_dp size=1 index=0 + vm=%vm_dp vn=%vn_dp vd=%vd_dp size=2 index=0 VDOT_scalar 1111 1110 0 . 10 .... .... 1101 . q:1 index:1 u:1 rm:4 \ vm=%vm_dp vn=%vn_dp vd=%vd_dp |