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Re: [RFC v4 01/16] target/riscv: reformat @sh format encoding for B-exte
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From: |
Alistair Francis |
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Subject: |
Re: [RFC v4 01/16] target/riscv: reformat @sh format encoding for B-extension |
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Date: |
Mon, 25 Jan 2021 15:47:23 -0800 |
On Tue, Jan 12, 2021 at 11:18 PM <frank.chang@sifive.com> wrote:
>
> From: Kito Cheng <kito.cheng@sifive.com>
>
> Signed-off-by: Kito Cheng <kito.cheng@sifive.com>
> Signed-off-by: Frank Chang <frank.chang@sifive.com>
> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Alistair
> ---
> target/riscv/insn32.decode | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
> index 84080dd18ca..3823b3ea800 100644
> --- a/target/riscv/insn32.decode
> +++ b/target/riscv/insn32.decode
> @@ -22,7 +22,7 @@
> %rs1 15:5
> %rd 7:5
>
> -%sh10 20:10
> +%sh7 20:7
> %csr 20:12
> %rm 12:3
> %nf 29:3 !function=ex_plus_1
> @@ -58,7 +58,7 @@
> @u .................... ..... ....... &u imm=%imm_u
> %rd
> @j .................... ..... ....... &j imm=%imm_j
> %rd
>
> -@sh ...... ...... ..... ... ..... ....... &shift shamt=%sh10
> %rs1 %rd
> +@sh ...... ...... ..... ... ..... ....... &shift shamt=%sh7 %rs1
> %rd
> @csr ............ ..... ... ..... ....... %csr %rs1
> %rd
>
> @atom_ld ..... aq:1 rl:1 ..... ........ ..... ....... &atomic rs2=0 %rs1
> %rd
> @@ -122,9 +122,9 @@ sltiu ............ ..... 011 ..... 0010011 @i
> xori ............ ..... 100 ..... 0010011 @i
> ori ............ ..... 110 ..... 0010011 @i
> andi ............ ..... 111 ..... 0010011 @i
> -slli 00.... ...... ..... 001 ..... 0010011 @sh
> -srli 00.... ...... ..... 101 ..... 0010011 @sh
> -srai 01.... ...... ..... 101 ..... 0010011 @sh
> +slli 00000. ...... ..... 001 ..... 0010011 @sh
> +srli 00000. ...... ..... 101 ..... 0010011 @sh
> +srai 01000. ...... ..... 101 ..... 0010011 @sh
> add 0000000 ..... ..... 000 ..... 0110011 @r
> sub 0100000 ..... ..... 000 ..... 0110011 @r
> sll 0000000 ..... ..... 001 ..... 0110011 @r
> --
> 2.17.1
>
>
- [RFC v4 00/16] support subsets of bitmanip extension, frank . chang, 2021/01/13
- [RFC v4 01/16] target/riscv: reformat @sh format encoding for B-extension, frank . chang, 2021/01/13
- Re: [RFC v4 01/16] target/riscv: reformat @sh format encoding for B-extension,
Alistair Francis <=
- [RFC v4 02/16] target/riscv: rvb: count leading/trailing zeros, frank . chang, 2021/01/13
- [RFC v4 03/16] target/riscv: rvb: count bits set, frank . chang, 2021/01/13
- [RFC v4 04/16] target/riscv: rvb: logic-with-negate, frank . chang, 2021/01/13
- [RFC v4 05/16] target/riscv: rvb: pack two words into one register, frank . chang, 2021/01/13
- [RFC v4 06/16] target/riscv: rvb: min/max instructions, frank . chang, 2021/01/13
- [RFC v4 07/16] target/riscv: rvb: sign-extend instructions, frank . chang, 2021/01/13
- [RFC v4 08/16] target/riscv: add gen_shifti() and gen_shiftiw() helper functions, frank . chang, 2021/01/13
- [RFC v4 09/16] target/riscv: rvb: single-bit instructions, frank . chang, 2021/01/13
- [RFC v4 10/16] target/riscv: rvb: shift ones, frank . chang, 2021/01/13