From 3a4a43e4e213a18d1ee4ed97090a5e86401c85bc Mon Sep 17 00:00:00 2001 From: Kito Cheng Date: Thu, 6 May 2021 00:06:16 +0800 Subject: [PATCH] target/riscv: rvb: add/shift with prefix zero-extend Signed-off-by: Kito Cheng Signed-off-by: Frank Chang Reviewed-by: Richard Henderson Message-id: 20210505160620.15723-16-frank.chang@sifive.com Signed-off-by: Alistair Francis --- target/riscv/insn32.decode | 3 +++ target/riscv/insn_trans/trans_rvb.c.inc | 26 +++++++++++++++++++++++++ target/riscv/translate.c | 6 ++++++ 3 files changed, 35 insertions(+) diff --git a/target/riscv/insn32.decode b/target/riscv/insn32.decode index 287920ee9b..f09f8d5faf 100644 --- a/target/riscv/insn32.decode +++ b/target/riscv/insn32.decode @@ -720,6 +720,7 @@ gorcw 0010100 .......... 101 ..... 0111011 @r sh1add_uw 0010000 .......... 010 ..... 0111011 @r sh2add_uw 0010000 .......... 100 ..... 0111011 @r sh3add_uw 0010000 .......... 110 ..... 0111011 @r +add_uw 0000100 .......... 000 ..... 0111011 @r bsetiw 0010100 .......... 001 ..... 0011011 @sh5 bclriw 0100100 .......... 001 ..... 0011011 @sh5 @@ -729,3 +730,5 @@ sroiw 0010000 .......... 101 ..... 0011011 @sh5 roriw 0110000 .......... 101 ..... 0011011 @sh5 greviw 0110100 .......... 101 ..... 0011011 @sh5 gorciw 0010100 .......... 101 ..... 0011011 @sh5 + +slli_uw 00001. ........... 001 ..... 0011011 @sh diff --git a/target/riscv/insn_trans/trans_rvb.c.inc b/target/riscv/insn_trans/trans_rvb.c.inc index b27114a068..9e81f6e3de 100644 --- a/target/riscv/insn_trans/trans_rvb.c.inc +++ b/target/riscv/insn_trans/trans_rvb.c.inc @@ -410,3 +410,29 @@ static bool trans_sh##SHAMT##add_uw(DisasContext *ctx, \ GEN_TRANS_SHADD_UW(1) GEN_TRANS_SHADD_UW(2) GEN_TRANS_SHADD_UW(3) + +static bool trans_add_uw(DisasContext *ctx, arg_add_uw *a) +{ + REQUIRE_64BIT(ctx); + REQUIRE_EXT(ctx, RVB); + return gen_arith(ctx, a, gen_add_uw); +} + +static bool trans_slli_uw(DisasContext *ctx, arg_slli_uw *a) +{ + REQUIRE_64BIT(ctx); + REQUIRE_EXT(ctx, RVB); + + TCGv source1 = tcg_temp_new(); + gen_get_gpr(source1, a->rs1); + + if (a->shamt < 32) { + tcg_gen_deposit_z_tl(source1, source1, a->shamt, 32); + } else { + tcg_gen_shli_tl(source1, source1, a->shamt); + } + + gen_set_gpr(a->rd, source1); + tcg_temp_free(source1); + return true; +} diff --git a/target/riscv/translate.c b/target/riscv/translate.c index ae9b5f7a2e..c6e8739614 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -765,6 +765,12 @@ GEN_SHADD_UW(1) GEN_SHADD_UW(2) GEN_SHADD_UW(3) +static void gen_add_uw(TCGv ret, TCGv arg1, TCGv arg2) +{ + tcg_gen_ext32u_tl(arg1, arg1); + tcg_gen_add_tl(ret, arg1, arg2); +} + static bool gen_arith(DisasContext *ctx, arg_r *a, void(*func)(TCGv, TCGv, TCGv)) {