mirror of
https://github.com/Motorhead1991/qemu.git
synced 2025-08-01 14:53:54 -06:00
6eab278d38
Zimop extension defines an encoding space for 40 MOPs.The Zimop extension defines 32 MOP instructions named MOP.R.n, where n is an integer between 0 and 31, inclusive. The Zimop extension additionally defines 8 MOP instructions named MOP.RR.n, where n is an integer between 0 and 7. These 40 MOPs initially are defined to simply write zero to x[rd], but are designed to be redefined by later extensions to perform some other action. Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Deepak Gupta <debug@rivosinc.com> Message-ID: <20240709113652.1239-2-zhiwei_liu@linux.alibaba.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
37 lines
1.2 KiB
C++
37 lines
1.2 KiB
C++
/*
|
|
* RISC-V translation routines for May-Be-Operation(zimop).
|
|
*
|
|
* Copyright (c) 2024 Alibaba Group.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2 or later, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
|
* more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with
|
|
* this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#define REQUIRE_ZIMOP(ctx) do { \
|
|
if (!ctx->cfg_ptr->ext_zimop) { \
|
|
return false; \
|
|
} \
|
|
} while (0)
|
|
|
|
static bool trans_mop_r_n(DisasContext *ctx, arg_mop_r_n *a)
|
|
{
|
|
REQUIRE_ZIMOP(ctx);
|
|
gen_set_gpr(ctx, a->rd, ctx->zero);
|
|
return true;
|
|
}
|
|
|
|
static bool trans_mop_rr_n(DisasContext *ctx, arg_mop_rr_n *a)
|
|
{
|
|
REQUIRE_ZIMOP(ctx);
|
|
gen_set_gpr(ctx, a->rd, ctx->zero);
|
|
return true;
|
|
}
|