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From: Alistair Francis <alistair23@gmail.com>
To: Frank Chang <frank.chang@sifive.com>
Cc: "open list:RISC-V" <qemu-riscv@nongnu.org>,
	Sagar Karandikar <sagark@eecs.berkeley.edu>,
	Bastian Koppelmann <kbastian@mail.uni-paderborn.de>,
	Richard Henderson <richard.henderson@linaro.org>,
	"qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>,
	Alistair Francis <Alistair.Francis@wdc.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Kito Cheng <kito.cheng@sifive.com>
Subject: Re: [PATCH v5 06/17] target/riscv: rvb: min/max instructions
Date: Tue, 27 Apr 2021 16:06:04 +1000
Message-ID: <CAKmqyKMOw45PSJxWJCGAwoWbncXaX=r-b70L7Lrg_Z=yK9EPyQ@mail.gmail.com> (raw)
In-Reply-To: <20210421041400.22243-7-frank.chang@sifive.com>

On Wed, Apr 21, 2021 at 2:19 PM <frank.chang@sifive.com> wrote:
>
> From: Kito Cheng <kito.cheng@sifive.com>
>
> Signed-off-by: Kito Cheng <kito.cheng@sifive.com>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
> Signed-off-by: Frank Chang <frank.chang@sifive.com>

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  target/riscv/insn32.decode              |  4 ++++
>  target/riscv/insn_trans/trans_rvb.c.inc | 24 ++++++++++++++++++++++++
>  2 files changed, 28 insertions(+)
>
> diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
> index 7f32b8c6d15..d64326fd864 100644
> --- a/target/riscv/insn32.decode
> +++ b/target/riscv/insn32.decode
> @@ -605,3 +605,7 @@ xnor       0100000 .......... 100 ..... 0110011 @r
>  pack       0000100 .......... 100 ..... 0110011 @r
>  packu      0100100 .......... 100 ..... 0110011 @r
>  packh      0000100 .......... 111 ..... 0110011 @r
> +min        0000101 .......... 100 ..... 0110011 @r
> +minu       0000101 .......... 101 ..... 0110011 @r
> +max        0000101 .......... 110 ..... 0110011 @r
> +maxu       0000101 .......... 111 ..... 0110011 @r
> diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc
> index 2d24dafac09..2aa4515fe31 100644
> --- a/target/riscv/insn_trans/trans_rvb.c.inc
> +++ b/target/riscv/insn_trans/trans_rvb.c.inc
> @@ -71,6 +71,30 @@ static bool trans_packh(DisasContext *ctx, arg_packh *a)
>      return gen_arith(ctx, a, gen_packh);
>  }
>
> +static bool trans_min(DisasContext *ctx, arg_min *a)
> +{
> +    REQUIRE_EXT(ctx, RVB);
> +    return gen_arith(ctx, a, tcg_gen_smin_tl);
> +}
> +
> +static bool trans_max(DisasContext *ctx, arg_max *a)
> +{
> +    REQUIRE_EXT(ctx, RVB);
> +    return gen_arith(ctx, a, tcg_gen_smax_tl);
> +}
> +
> +static bool trans_minu(DisasContext *ctx, arg_minu *a)
> +{
> +    REQUIRE_EXT(ctx, RVB);
> +    return gen_arith(ctx, a, tcg_gen_umin_tl);
> +}
> +
> +static bool trans_maxu(DisasContext *ctx, arg_maxu *a)
> +{
> +    REQUIRE_EXT(ctx, RVB);
> +    return gen_arith(ctx, a, tcg_gen_umax_tl);
> +}
> +
>  /* RV64-only instructions */
>  #ifdef TARGET_RISCV64
>
> --
> 2.17.1
>
>


  reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-21  4:13 [PATCH v5 00/17] support subsets of bitmanip extension frank.chang
2021-04-21  4:13 ` [PATCH v5 01/17] target/riscv: reformat @sh format encoding for B-extension frank.chang
2021-04-21  4:13 ` [PATCH v5 02/17] target/riscv: rvb: count leading/trailing zeros frank.chang
2021-04-27  6:01   ` Alistair Francis
2021-04-27  7:13     ` Frank Chang
2021-04-21  4:13 ` [PATCH v5 03/17] target/riscv: rvb: count bits set frank.chang
2021-04-27  6:03   ` Alistair Francis
2021-04-21  4:13 ` [PATCH v5 04/17] target/riscv: rvb: logic-with-negate frank.chang
2021-04-27  6:04   ` Alistair Francis
2021-04-21  4:13 ` [PATCH v5 05/17] target/riscv: rvb: pack two words into one register frank.chang
2021-04-27  6:05   ` Alistair Francis
2021-04-21  4:13 ` [PATCH v5 06/17] target/riscv: rvb: min/max instructions frank.chang
2021-04-27  6:06   ` Alistair Francis [this message]
2021-04-21  4:13 ` [PATCH v5 07/17] target/riscv: rvb: sign-extend instructions frank.chang
2021-04-27  6:06   ` Alistair Francis
2021-04-21  4:13 ` [PATCH v5 08/17] target/riscv: add gen_shifti() and gen_shiftiw() helper functions frank.chang
2021-04-21  4:13 ` [PATCH v5 09/17] target/riscv: rvb: single-bit instructions frank.chang
2021-04-21  4:13 ` [PATCH v5 10/17] target/riscv: rvb: shift ones frank.chang
2021-04-21  4:13 ` [PATCH v5 11/17] target/riscv: rvb: rotate (left/right) frank.chang
2021-04-21  4:13 ` [PATCH v5 12/17] target/riscv: rvb: generalized reverse frank.chang
2021-04-21  4:13 ` [PATCH v5 13/17] target/riscv: rvb: generalized or-combine frank.chang
2021-04-21  4:13 ` [PATCH v5 14/17] target/riscv: rvb: address calculation frank.chang
2021-04-21  4:13 ` [PATCH v5 15/17] target/riscv: rvb: add/shift with prefix zero-extend frank.chang
2021-04-21  4:13 ` [PATCH v5 16/17] target/riscv: rvb: support and turn on B-extension from command line frank.chang
2021-04-21  4:13 ` [PATCH v5 17/17] target/riscv: rvb: add b-ext version cpu option frank.chang

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