From: Matheus Ferst <matheus.fe...@eldorado.org.br> Signed-off-by: Matheus Ferst <matheus.fe...@eldorado.org.br> --- target/ppc/insn32.decode | 5 ++++ target/ppc/translate/vmx-impl.c.inc | 44 +++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+)
diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode index 0a3e39f3e9..7b629e81af 100644 --- a/target/ppc/insn32.decode +++ b/target/ppc/insn32.decode @@ -66,6 +66,9 @@ &VX_mp rt mp:bool vrb @VX_mp ...... rt:5 .... mp:1 vrb:5 ........... &VX_mp +&VX_n rt vrb n +@VX_n ...... rt:5 .. n:3 vrb:5 ........... &VX_n + &VX_tb_rc vrt vrb rc:bool @VX_tb_rc ...... vrt:5 ..... vrb:5 rc:1 .......... &VX_tb_rc @@ -418,6 +421,8 @@ VCMPUQ 000100 ... -- ..... ..... 00100000001 @VX_bf ## Vector Bit Manipulation Instruction +VGNB 000100 ..... -- ... ..... 10011001100 @VX_n + VCFUGED 000100 ..... ..... ..... 10101001101 @VX VCLZDM 000100 ..... ..... ..... 11110000100 @VX VCTZDM 000100 ..... ..... ..... 11111000100 @VX diff --git a/target/ppc/translate/vmx-impl.c.inc b/target/ppc/translate/vmx-impl.c.inc index 78b277466a..43eb7ab70c 100644 --- a/target/ppc/translate/vmx-impl.c.inc +++ b/target/ppc/translate/vmx-impl.c.inc @@ -1438,6 +1438,50 @@ GEN_VXFORM_DUAL(vsplth, PPC_ALTIVEC, PPC_NONE, GEN_VXFORM_DUAL(vspltw, PPC_ALTIVEC, PPC_NONE, vextractuw, PPC_NONE, PPC2_ISA300); +static bool trans_VGNB(DisasContext *ctx, arg_VX_n *a) +{ + TCGv_i64 vrb, tmp, rt; + int in = 63, out = 63; + + REQUIRE_INSNS_FLAGS2(ctx, ISA310); + REQUIRE_VECTOR(ctx); + + if (a->n < 2) { + /* + * "N can be any value between 2 and 7, inclusive." Otherwise, the + * result is undefined, so we don't need to change RT. Also, N > 7 is + * impossible since the immediate field is 3 bits only. + */ + return true; + } + + vrb = tcg_temp_new_i64(); + tmp = tcg_temp_new_i64(); + rt = tcg_const_i64(0); + + for (int dw = 1; dw >= 0; dw--) { + get_avr64(vrb, a->vrb, dw); + for (; in >= 0; in -= a->n, out--) { + if (in > out) { + tcg_gen_shri_i64(tmp, vrb, in - out); + } else { + tcg_gen_shli_i64(tmp, vrb, out - in); + } + tcg_gen_andi_i64(tmp, tmp, 1ULL << out); + tcg_gen_or_i64(rt, rt, tmp); + } + in += 64; + } + + tcg_gen_trunc_i64_tl(cpu_gpr[a->rt], rt); + + tcg_temp_free_i64(vrb); + tcg_temp_free_i64(tmp); + tcg_temp_free_i64(rt); + + return true; +} + static bool do_vextdx(DisasContext *ctx, arg_VA *a, int size, bool right, void (*gen_helper)(TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv_ptr, TCGv)) { -- 2.31.1