From: Matheus Ferst <matheus.fe...@eldorado.org.br> Implement the following PowerISA v3.1 instructions: vextractbm: Vector Extract Byte Mask vextracthm: Vector Extract Halfword Mask vextractwm: Vector Extract Word Mask vextractdm: Vector Extract Doubleword Mask vextractqm: Vector Extract Quadword Mask
Suggested-by: Richard Henderson <richard.hender...@linaro.org> Signed-off-by: Matheus Ferst <matheus.fe...@eldorado.org.br> --- v2: - Applied rth suggestion to do_vextractm --- target/ppc/insn32.decode | 6 +++ target/ppc/translate/vmx-impl.c.inc | 60 +++++++++++++++++++++++++++++ 2 files changed, 66 insertions(+) diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode index 9a28f1d266..639ac22bf0 100644 --- a/target/ppc/insn32.decode +++ b/target/ppc/insn32.decode @@ -419,6 +419,12 @@ VEXPANDWM 000100 ..... 00010 ..... 11001000010 @VX_tb VEXPANDDM 000100 ..... 00011 ..... 11001000010 @VX_tb VEXPANDQM 000100 ..... 00100 ..... 11001000010 @VX_tb +VEXTRACTBM 000100 ..... 01000 ..... 11001000010 @VX_tb +VEXTRACTHM 000100 ..... 01001 ..... 11001000010 @VX_tb +VEXTRACTWM 000100 ..... 01010 ..... 11001000010 @VX_tb +VEXTRACTDM 000100 ..... 01011 ..... 11001000010 @VX_tb +VEXTRACTQM 000100 ..... 01100 ..... 11001000010 @VX_tb + # VSX Load/Store Instructions LXV 111101 ..... ..... ............ . 001 @DQ_TSX diff --git a/target/ppc/translate/vmx-impl.c.inc b/target/ppc/translate/vmx-impl.c.inc index 58aca58f0f..dd7337c2f2 100644 --- a/target/ppc/translate/vmx-impl.c.inc +++ b/target/ppc/translate/vmx-impl.c.inc @@ -1539,6 +1539,66 @@ static bool trans_VEXPANDQM(DisasContext *ctx, arg_VX_tb *a) return true; } +static bool do_vextractm(DisasContext *ctx, arg_VX_tb *a, unsigned vece) +{ + const uint64_t elem_width = 8 << vece, elem_count_half = 8 >> vece; + TCGv_i64 t, b, tmp; + + REQUIRE_INSNS_FLAGS2(ctx, ISA310); + REQUIRE_VECTOR(ctx); + + t = tcg_const_i64(0); + b = tcg_temp_new_i64(); + tmp = tcg_temp_new_i64(); + + for (int w = 0; w < 2; w++) { + get_avr64(b, a->vrb, w); + + for (int i = 0; i < elem_count_half; i++) { + int in_bit = (i + 1) * elem_width - 1; + int out_bit = w * elem_count_half + i; + + if (in_bit > out_bit) { + tcg_gen_shri_i64(tmp, b, in_bit - out_bit); + } else { + tcg_gen_shli_i64(tmp, b, out_bit - in_bit); + } + tcg_gen_andi_i64(tmp, tmp, 1 << out_bit); + tcg_gen_or_i64(t, t, tmp); + } + } + tcg_gen_trunc_i64_tl(cpu_gpr[a->vrt], t); + + tcg_temp_free_i64(t); + tcg_temp_free_i64(b); + tcg_temp_free_i64(tmp); + + return true; +} + +TRANS(VEXTRACTBM, do_vextractm, MO_8) +TRANS(VEXTRACTHM, do_vextractm, MO_16) +TRANS(VEXTRACTWM, do_vextractm, MO_32) +TRANS(VEXTRACTDM, do_vextractm, MO_64) + +static bool trans_VEXTRACTQM(DisasContext *ctx, arg_VX_tb *a) +{ + TCGv_i64 tmp; + + REQUIRE_INSNS_FLAGS2(ctx, ISA310); + REQUIRE_VECTOR(ctx); + + tmp = tcg_temp_new_i64(); + + get_avr64(tmp, a->vrb, true); + tcg_gen_shri_i64(tmp, tmp, 63); + tcg_gen_trunc_i64_tl(cpu_gpr[a->vrt], tmp); + + tcg_temp_free_i64(tmp); + + return true; +} + #define GEN_VAFORM_PAIRED(name0, name1, opc2) \ static void glue(gen_, name0##_##name1)(DisasContext *ctx) \ { \ -- 2.25.1