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Re: [RFC v2 43/76] target/riscv: rvv-0.9: integer extension instructions
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From: |
Richard Henderson |
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Subject: |
Re: [RFC v2 43/76] target/riscv: rvv-0.9: integer extension instructions |
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Date: |
Fri, 31 Jul 2020 10:30:44 -0700 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 |
On 7/31/20 3:17 AM, Frank Chang wrote:
> On Fri, Jul 31, 2020 at 4:35 AM Richard Henderson
> <richard.henderson@linaro.org
> I don't understand why there aren't more functions in this table. As far
> as I
> can see, the only NULLs should be at [*][0].
>
>
> As source EEW has to be 1/2, 1/4, 1/8 of SEW and the source EEW must be
> a supported width (Section 12.3).
Oh, duh, of course.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
r~
- [RFC v2 40/76] target/riscv: rvv-0.9: floating-point move instruction, (continued)
- [RFC v2 44/76] target/riscv: rvv-0.9: single-width averaging add and subtract instructions, frank . chang, 2020/07/22
- [RFC v2 45/76] target/riscv: rvv-0.9: single-width bit shift instructions, frank . chang, 2020/07/22
- [RFC v2 46/76] target/riscv: rvv-0.9: integer add-with-carry/subtract-with-borrow, frank . chang, 2020/07/22
- [RFC v2 47/76] target/riscv: rvv-0.9: narrowing integer right shift instructions, frank . chang, 2020/07/22
- [RFC v2 48/76] target/riscv: rvv-0.9: widening integer multiply-add instructions, frank . chang, 2020/07/22
- [RFC v2 49/76] target/riscv: rvv-0.9: quad-widening integer multiply-add instructions, frank . chang, 2020/07/22