diff --git a/qemu/target/riscv/insn32.decode b/qemu/target/riscv/insn32.decode index e06c0ffc..17288a3c 100644 --- a/qemu/target/riscv/insn32.decode +++ b/qemu/target/riscv/insn32.decode @@ -72,6 +72,7 @@ @r2_vm ...... vm:1 ..... ..... ... ..... ....... &rmr %rs2 %rd @r1_vm ...... vm:1 ..... ..... ... ..... ....... %rd @r_nfvm ... ... vm:1 ..... ..... ... ..... ....... &rnfvm %nf %rs2 %rs1 %rd +@r2rd ....... ..... ..... ... ..... ....... %rs2 %rd @r_vm ...... vm:1 ..... ..... ... ..... ....... &rmrr %rs2 %rs1 %rd @r_vm_1 ...... . ..... ..... ... ..... ....... &rmrr vm=1 %rs2 %rs1 %rd @r_vm_0 ...... . ..... ..... ... ..... ....... &rmrr vm=0 %rs2 %rs1 %rd @@ -565,6 +566,8 @@ viota_m 010110 . ..... 10000 010 ..... 1010111 @r2_vm vid_v 010110 . 00000 10001 010 ..... 1010111 @r1_vm vext_x_v 001100 1 ..... ..... 010 ..... 1010111 @r vmv_s_x 001101 1 00000 ..... 110 ..... 1010111 @r2 +vfmv_f_s 001100 1 ..... 00000 001 ..... 1010111 @r2rd +vfmv_s_f 001101 1 00000 ..... 101 ..... 1010111 @r2 vsetvli 0 ........... ..... 111 ..... 1010111 @r2_zimm vsetvl 1000000 ..... ..... 111 ..... 1010111 @r diff --git a/qemu/target/riscv/insn_trans/trans_rvv.inc.c b/qemu/target/riscv/insn_trans/trans_rvv.inc.c index f82bc876..80d99589 100644 --- a/qemu/target/riscv/insn_trans/trans_rvv.inc.c +++ b/qemu/target/riscv/insn_trans/trans_rvv.inc.c @@ -2762,3 +2762,56 @@ static bool trans_vmv_s_x(DisasContext *s, arg_vmv_s_x *a) } return false; } + +/* Floating-Point Scalar Move Instructions */ +static bool trans_vfmv_f_s(DisasContext *s, arg_vfmv_f_s *a) +{ + TCGContext *tcg_ctx = s->uc->tcg_ctx; + + if (!s->vill && has_ext(s, RVF) && + (s->mstatus_fs != 0) && (s->sew != 0)) { + unsigned int len = 8 << s->sew; + + vec_element_loadi(s, tcg_ctx->cpu_fpr_risc[a->rd], a->rs2, 0); + if (len < 64) { + tcg_gen_ori_i64(tcg_ctx, tcg_ctx->cpu_fpr_risc[a->rd], tcg_ctx->cpu_fpr_risc[a->rd], + MAKE_64BIT_MASK(len, 64 - len)); + } + + mark_fs_dirty(s); + return true; + } + return false; +} + +/* vfmv.s.f vd, rs1 # vd[0] = rs1 (vs2=0) */ +static bool trans_vfmv_s_f(DisasContext *s, arg_vfmv_s_f *a) +{ + TCGContext *tcg_ctx = s->uc->tcg_ctx; + + if (!s->vill && has_ext(s, RVF) && (s->sew != 0)) { + TCGv_i64 t1; + /* The instructions ignore LMUL and vector register group. */ + uint32_t vlmax = s->vlen >> 3; + + /* if vl == 0, skip vector register write back */ + TCGLabel *over = gen_new_label(tcg_ctx); + tcg_gen_brcondi_tl(tcg_ctx, TCG_COND_EQ, tcg_ctx->cpu_vl_risc, 0, over); + + /* zeroed all elements */ + tcg_gen_gvec_dup_imm(tcg_ctx, SEW64, vreg_ofs(s, a->rd), vlmax, vlmax, 0); + + /* NaN-box f[rs1] as necessary for SEW */ + t1 = tcg_temp_new_i64(tcg_ctx); + if (s->sew == MO_64 && !has_ext(s, RVD)) { + tcg_gen_ori_i64(tcg_ctx, t1, tcg_ctx->cpu_fpr_risc[a->rs1], MAKE_64BIT_MASK(32, 32)); + } else { + tcg_gen_mov_i64(tcg_ctx, t1, tcg_ctx->cpu_fpr_risc[a->rs1]); + } + vec_element_storei(s, a->rd, 0, t1); + tcg_temp_free_i64(tcg_ctx, t1); + gen_set_label(tcg_ctx, over); + return true; + } + return false; +}