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target/riscv: Add amocas.[b|h] for Zabha 

Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240709113652.1239-10-zhiwei_liu@linux.alibaba.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
LIU Zhiwei 2024-07-09 19:36:50 +08:00 committed by Alistair Francis
parent 8d07887bcb
commit d34e406602
2 changed files with 16 additions and 0 deletions
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2
target/riscv/insn32.decode
View File

@ -1041,3 +1041,5 @@ amomin_h 10000 . . ..... ..... 001 ..... 0101111 @atom_st
amomax_h 10100 . . ..... ..... 001 ..... 0101111 @atom_st
amominu_h 11000 . . ..... ..... 001 ..... 0101111 @atom_st
amomaxu_h 11100 . . ..... ..... 001 ..... 0101111 @atom_st
amocas_b 00101 . . ..... ..... 000 ..... 0101111 @atom_st
amocas_h 00101 . . ..... ..... 001 ..... 0101111 @atom_st

14
target/riscv/insn_trans/trans_rvzabha.c.inc
View File

@ -129,3 +129,17 @@ static bool trans_amomaxu_h(DisasContext *ctx, arg_amomaxu_h *a)
REQUIRE_ZABHA(ctx);
return gen_amo(ctx, a, &tcg_gen_atomic_fetch_umax_tl, MO_TESW);
}
static bool trans_amocas_b(DisasContext *ctx, arg_amocas_b *a)
{
REQUIRE_ZACAS(ctx);
REQUIRE_ZABHA(ctx);
return gen_cmpxchg(ctx, a, MO_SB);
}
static bool trans_amocas_h(DisasContext *ctx, arg_amocas_h *a)
{
REQUIRE_ZACAS(ctx);
REQUIRE_ZABHA(ctx);
return gen_cmpxchg(ctx, a, MO_ALIGN | MO_TESW);
}