From 27fd64144bebc34a815fd8a69af790b080e80c61 Mon Sep 17 00:00:00 2001 From: Alistair Francis Date: Wed, 19 Dec 2018 19:18:28 +0000 Subject: tcg/riscv: Add the extract instructions Signed-off-by: Alistair Francis Signed-off-by: Michael Clark Reviewed-by: Richard Henderson Message-Id: Signed-off-by: Richard Henderson --- tcg/riscv/tcg-target.inc.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) (limited to 'tcg/riscv') 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); +} -- cgit v1.2.3