| Message ID | 20210713133726.26842-2-peter.maydell@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | target/arm: Third slice of MVE implementation | expand |
On 7/13/21 6:36 AM, Peter Maydell wrote: > Although the architecture doesn't define it as an alias, VMOVL > (vector move long) is encoded as a VSHLL with a zero shift. > Add a comment in the decode file noting that we handle VMOVL > as part of VSHLL. > > Signed-off-by: Peter Maydell<peter.maydell@linaro.org> > --- > target/arm/mve.decode | 2 ++ > 1 file changed, 2 insertions(+) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/target/arm/mve.decode b/target/arm/mve.decode index 595d97568eb..fa9d921f933 100644 --- a/target/arm/mve.decode +++ b/target/arm/mve.decode @@ -364,6 +364,8 @@ VRSHRI_U 111 1 1111 1 . ... ... ... 0 0010 0 1 . 1 ... 0 @2_shr_h VRSHRI_U 111 1 1111 1 . ... ... ... 0 0010 0 1 . 1 ... 0 @2_shr_w # VSHLL T1 encoding; the T2 VSHLL encoding is elsewhere in this file +# Note that VMOVL is encoded as "VSHLL with a zero shift count"; we +# implement it that way rather than special-casing it in the decode. VSHLL_BS 111 0 1110 1 . 1 .. ... ... 0 1111 0 1 . 0 ... 0 @2_shll_b VSHLL_BS 111 0 1110 1 . 1 .. ... ... 0 1111 0 1 . 0 ... 0 @2_shll_h
Although the architecture doesn't define it as an alias, VMOVL (vector move long) is encoded as a VSHLL with a zero shift. Add a comment in the decode file noting that we handle VMOVL as part of VSHLL. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> --- target/arm/mve.decode | 2 ++ 1 file changed, 2 insertions(+)