diff options
| author | Alistair Francis <Alistair.Francis@wdc.com> | 2018-12-19 19:18:28 +0000 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2018-12-26 06:40:02 +1100 |
| commit | 27fd64144bebc34a815fd8a69af790b080e80c61 (patch) | |
| tree | a8e9484bb27db5e42d7da2fa29a6d5ebc5f2c35d /tcg | |
| parent | 6cd2eda39f648ed398b0dca69cd7aaf6be50e30d (diff) | |
tcg/riscv: Add the extract instructions
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <c4d2afba46efefa9388cf3205fcedbb9a5fa411f.1545246859.git.alistair.francis@wdc.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'tcg')
| -rw-r--r-- | tcg/riscv/tcg-target.inc.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/tcg/riscv/tcg-target.inc.c b/tcg/riscv/tcg-target.inc.c index 01b4443d6d..48399480b2 100644 --- a/tcg/riscv/tcg-target.inc.c +++ b/tcg/riscv/tcg-target.inc.c @@ -596,3 +596,37 @@ static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg rd, tcg_out_opc_upper(s, OPC_AUIPC, rd, 0); tcg_out_opc_imm(s, OPC_LD, rd, rd, 0); } + +static void tcg_out_ext8u(TCGContext *s, TCGReg ret, TCGReg arg) +{ + tcg_out_opc_imm(s, OPC_ANDI, ret, arg, 0xff); +} + +static void tcg_out_ext16u(TCGContext *s, TCGReg ret, TCGReg arg) +{ + tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 16); + tcg_out_opc_imm(s, OPC_SRLIW, ret, ret, 16); +} + +static void tcg_out_ext32u(TCGContext *s, TCGReg ret, TCGReg arg) +{ + tcg_out_opc_imm(s, OPC_SLLI, ret, arg, 32); + tcg_out_opc_imm(s, OPC_SRLI, ret, ret, 32); +} + +static void tcg_out_ext8s(TCGContext *s, TCGReg ret, TCGReg arg) +{ + tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 24); + tcg_out_opc_imm(s, OPC_SRAIW, ret, ret, 24); +} + +static void tcg_out_ext16s(TCGContext *s, TCGReg ret, TCGReg arg) +{ + tcg_out_opc_imm(s, OPC_SLLIW, ret, arg, 16); + tcg_out_opc_imm(s, OPC_SRAIW, ret, ret, 16); +} + +static void tcg_out_ext32s(TCGContext *s, TCGReg ret, TCGReg arg) +{ + tcg_out_opc_imm(s, OPC_ADDIW, ret, arg, 0); +} |