diff mbox series

[v5,07/17] target/riscv: rvb: sign-extend instructions

Message ID 20210421041400.22243-8-frank.chang@sifive.com
State New
Headers show
Series support subsets of bitmanip extension | expand

Commit Message

Frank Chang April 21, 2021, 4:13 a.m. UTC 
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>
---
 target/riscv/insn32.decode              |  2 ++
 target/riscv/insn_trans/trans_rvb.c.inc | 12 ++++++++++++
 2 files changed, 14 insertions(+)

Comments

Alistair Francis April 27, 2021, 6:06 a.m. UTC | #1 
On Wed, Apr 21, 2021 at 2:20 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              |  2 ++
>  target/riscv/insn_trans/trans_rvb.c.inc | 12 ++++++++++++
>  2 files changed, 14 insertions(+)
>
> diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
> index d64326fd864..938c23088eb 100644
> --- a/target/riscv/insn32.decode
> +++ b/target/riscv/insn32.decode
> @@ -598,6 +598,8 @@ vsetvl          1000000 ..... ..... 111 ..... 1010111  @r
>  clz        011000 000000 ..... 001 ..... 0010011 @r2
>  ctz        011000 000001 ..... 001 ..... 0010011 @r2
>  cpop       011000 000010 ..... 001 ..... 0010011 @r2
> +sext_b     011000 000100 ..... 001 ..... 0010011 @r2
> +sext_h     011000 000101 ..... 001 ..... 0010011 @r2
>
>  andn       0100000 .......... 111 ..... 0110011 @r
>  orn        0100000 .......... 110 ..... 0110011 @r
> diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc
> index 2aa4515fe31..1496996a660 100644
> --- a/target/riscv/insn_trans/trans_rvb.c.inc
> +++ b/target/riscv/insn_trans/trans_rvb.c.inc
> @@ -95,6 +95,18 @@ static bool trans_maxu(DisasContext *ctx, arg_maxu *a)
>      return gen_arith(ctx, a, tcg_gen_umax_tl);
>  }
>
> +static bool trans_sext_b(DisasContext *ctx, arg_sext_b *a)
> +{
> +    REQUIRE_EXT(ctx, RVB);
> +    return gen_unary(ctx, a, tcg_gen_ext8s_tl);
> +}
> +
> +static bool trans_sext_h(DisasContext *ctx, arg_sext_h *a)
> +{
> +    REQUIRE_EXT(ctx, RVB);
> +    return gen_unary(ctx, a, tcg_gen_ext16s_tl);
> +}
> +
>  /* RV64-only instructions */
>  #ifdef TARGET_RISCV64
>
> --
> 2.17.1
>
>
diff mbox series

Patch

diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index d64326fd864..938c23088eb 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -598,6 +598,8 @@  vsetvl          1000000 ..... ..... 111 ..... 1010111  @r
 clz        011000 000000 ..... 001 ..... 0010011 @r2
 ctz        011000 000001 ..... 001 ..... 0010011 @r2
 cpop       011000 000010 ..... 001 ..... 0010011 @r2
+sext_b     011000 000100 ..... 001 ..... 0010011 @r2
+sext_h     011000 000101 ..... 001 ..... 0010011 @r2
 
 andn       0100000 .......... 111 ..... 0110011 @r
 orn        0100000 .......... 110 ..... 0110011 @r
diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc
index 2aa4515fe31..1496996a660 100644
--- a/target/riscv/insn_trans/trans_rvb.c.inc
+++ b/target/riscv/insn_trans/trans_rvb.c.inc
@@ -95,6 +95,18 @@  static bool trans_maxu(DisasContext *ctx, arg_maxu *a)
     return gen_arith(ctx, a, tcg_gen_umax_tl);
 }
 
+static bool trans_sext_b(DisasContext *ctx, arg_sext_b *a)
+{
+    REQUIRE_EXT(ctx, RVB);
+    return gen_unary(ctx, a, tcg_gen_ext8s_tl);
+}
+
+static bool trans_sext_h(DisasContext *ctx, arg_sext_h *a)
+{
+    REQUIRE_EXT(ctx, RVB);
+    return gen_unary(ctx, a, tcg_gen_ext16s_tl);
+}
+
 /* RV64-only instructions */
 #ifdef TARGET_RISCV64