0d429bd243
This adds the decoder and translation for the XVentanaCondOps custom extension (vendor-defined by Ventana Micro Systems), which is documented at https://github.com/ventanamicro/ventana-custom-extensions/releases/download/v1.0.0/ventana-custom-extensions-v1.0.0.pdf This commit then also adds a guard-function (has_XVentanaCondOps_p) and the decoder function to the table of decoders, enabling the support for the XVentanaCondOps extension. 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> Message-Id: <20220202005249.3566542-7-philipp.tomsich@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
40 lines
1.2 KiB
C++
40 lines
1.2 KiB
C++
/*
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* RISC-V translation routines for the XVentanaCondOps extension.
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*
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* Copyright (c) 2021-2022 VRULL GmbH.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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static bool gen_vt_condmask(DisasContext *ctx, arg_r *a, TCGCond cond)
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{
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TCGv dest = dest_gpr(ctx, a->rd);
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TCGv src1 = get_gpr(ctx, a->rs1, EXT_NONE);
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TCGv src2 = get_gpr(ctx, a->rs2, EXT_NONE);
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tcg_gen_movcond_tl(cond, dest, src2, ctx->zero, src1, ctx->zero);
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gen_set_gpr(ctx, a->rd, dest);
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return true;
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}
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static bool trans_vt_maskc(DisasContext *ctx, arg_r *a)
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{
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return gen_vt_condmask(ctx, a, TCG_COND_NE);
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}
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static bool trans_vt_maskcn(DisasContext *ctx, arg_r *a)
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{
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return gen_vt_condmask(ctx, a, TCG_COND_EQ);
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}
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