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[PATCH v11 06/16] target/riscv: Remove the W-form instructions from Zbs
From: |
Philipp Tomsich |
Subject: |
[PATCH v11 06/16] target/riscv: Remove the W-form instructions from Zbs |
Date: |
Sat, 11 Sep 2021 16:00:06 +0200 |
Zbs 1.0.0 (just as the 0.93 draft-B before) does not provide for W-form
instructions for Zbs (single-bit instructions). Remove them.
Note that these instructions had already been removed for the 0.93
version of the draft-B extention and have not been present in the
binutils patches circulating in January 2021.
Signed-off-by: Philipp Tomsich <philipp.tomsich@vrull.eu>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
---
Changes in v11:
- Fix typos in commit message.
Changes in v3:
- Remove the W-form instructions from Zbs in a separate commit.
target/riscv/insn32.decode | 7 ----
target/riscv/insn_trans/trans_rvb.c.inc | 56 -------------------------
2 files changed, 63 deletions(-)
diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode
index 86f1166dab..b499691a9e 100644
--- a/target/riscv/insn32.decode
+++ b/target/riscv/insn32.decode
@@ -717,10 +717,6 @@ cpopw 0110000 00010 ..... 001 ..... 0011011 @r2
packw 0000100 .......... 100 ..... 0111011 @r
packuw 0100100 .......... 100 ..... 0111011 @r
-bsetw 0010100 .......... 001 ..... 0111011 @r
-bclrw 0100100 .......... 001 ..... 0111011 @r
-binvw 0110100 .......... 001 ..... 0111011 @r
-bextw 0100100 .......... 101 ..... 0111011 @r
slow 0010000 .......... 001 ..... 0111011 @r
srow 0010000 .......... 101 ..... 0111011 @r
rorw 0110000 .......... 101 ..... 0111011 @r
@@ -728,9 +724,6 @@ rolw 0110000 .......... 001 ..... 0111011 @r
grevw 0110100 .......... 101 ..... 0111011 @r
gorcw 0010100 .......... 101 ..... 0111011 @r
-bsetiw 0010100 .......... 001 ..... 0011011 @sh5
-bclriw 0100100 .......... 001 ..... 0011011 @sh5
-binviw 0110100 .......... 001 ..... 0011011 @sh5
sloiw 0010000 .......... 001 ..... 0011011 @sh5
sroiw 0010000 .......... 101 ..... 0011011 @sh5
roriw 0110000 .......... 101 ..... 0011011 @sh5
diff --git a/target/riscv/insn_trans/trans_rvb.c.inc
b/target/riscv/insn_trans/trans_rvb.c.inc
index fd549c7b0f..fbe1c3b410 100644
--- a/target/riscv/insn_trans/trans_rvb.c.inc
+++ b/target/riscv/insn_trans/trans_rvb.c.inc
@@ -420,62 +420,6 @@ static bool trans_packuw(DisasContext *ctx, arg_packuw *a)
return gen_arith(ctx, a, EXT_NONE, gen_packuw);
}
-static bool trans_bsetw(DisasContext *ctx, arg_bsetw *a)
-{
- REQUIRE_64BIT(ctx);
- REQUIRE_EXT(ctx, RVB);
- ctx->w = true;
- return gen_shift(ctx, a, EXT_NONE, gen_bset);
-}
-
-static bool trans_bsetiw(DisasContext *ctx, arg_bsetiw *a)
-{
- REQUIRE_64BIT(ctx);
- REQUIRE_EXT(ctx, RVB);
- ctx->w = true;
- return gen_shift_imm_tl(ctx, a, EXT_NONE, gen_bset);
-}
-
-static bool trans_bclrw(DisasContext *ctx, arg_bclrw *a)
-{
- REQUIRE_64BIT(ctx);
- REQUIRE_EXT(ctx, RVB);
- ctx->w = true;
- return gen_shift(ctx, a, EXT_NONE, gen_bclr);
-}
-
-static bool trans_bclriw(DisasContext *ctx, arg_bclriw *a)
-{
- REQUIRE_64BIT(ctx);
- REQUIRE_EXT(ctx, RVB);
- ctx->w = true;
- return gen_shift_imm_tl(ctx, a, EXT_NONE, gen_bclr);
-}
-
-static bool trans_binvw(DisasContext *ctx, arg_binvw *a)
-{
- REQUIRE_64BIT(ctx);
- REQUIRE_EXT(ctx, RVB);
- ctx->w = true;
- return gen_shift(ctx, a, EXT_NONE, gen_binv);
-}
-
-static bool trans_binviw(DisasContext *ctx, arg_binviw *a)
-{
- REQUIRE_64BIT(ctx);
- REQUIRE_EXT(ctx, RVB);
- ctx->w = true;
- return gen_shift_imm_tl(ctx, a, EXT_NONE, gen_binv);
-}
-
-static bool trans_bextw(DisasContext *ctx, arg_bextw *a)
-{
- REQUIRE_64BIT(ctx);
- REQUIRE_EXT(ctx, RVB);
- ctx->w = true;
- return gen_shift(ctx, a, EXT_NONE, gen_bext);
-}
-
static bool trans_slow(DisasContext *ctx, arg_slow *a)
{
REQUIRE_64BIT(ctx);
--
2.25.1
- [PATCH v11 00/16] target/riscv: Update QEmu for Zb[abcs] 1.0.0, Philipp Tomsich, 2021/09/11
- [PATCH v11 02/16] target/riscv: fix clzw implementation to operate on arg1, Philipp Tomsich, 2021/09/11
- [PATCH v11 01/16] target/riscv: Introduce temporary in gen_add_uw(), Philipp Tomsich, 2021/09/11
- [PATCH v11 13/16] target/riscv: Add rev8 instruction, removing grev/grevi, Philipp Tomsich, 2021/09/11
- [PATCH v11 06/16] target/riscv: Remove the W-form instructions from Zbs,
Philipp Tomsich <=
- [PATCH v11 05/16] target/riscv: Reassign instructions to the Zba-extension, Philipp Tomsich, 2021/09/11
- [PATCH v11 10/16] target/riscv: Reassign instructions to the Zbb-extension, Philipp Tomsich, 2021/09/11
- [PATCH v11 15/16] target/riscv: Remove RVB (replaced by Zb[abcs]), Philipp Tomsich, 2021/09/11
- [PATCH v11 04/16] target/riscv: Add x-zba, x-zbb, x-zbc and x-zbs properties, Philipp Tomsich, 2021/09/11
- [PATCH v11 14/16] target/riscv: Add zext.h instructions to Zbb, removing pack/packu/packh, Philipp Tomsich, 2021/09/11
- [PATCH v11 03/16] target/riscv: clwz must ignore high bits (use shift-left & changed logic), Philipp Tomsich, 2021/09/11
- [PATCH v11 09/16] target/riscv: Add instructions of the Zbc-extension, Philipp Tomsich, 2021/09/11