diff options
Diffstat (limited to 'target/arm')
| -rw-r--r-- | target/arm/translate-mve.c | 67 |
1 files changed, 59 insertions, 8 deletions
diff --git a/target/arm/translate-mve.c b/target/arm/translate-mve.c index 00fa437..5d66f70 100644 --- a/target/arm/translate-mve.c +++ b/target/arm/translate-mve.c @@ -1735,16 +1735,67 @@ DO_2SHIFT_SCALAR(VQSHL_U_scalar, vqshli_u) DO_2SHIFT_SCALAR(VQRSHL_S_scalar, vqrshli_s) DO_2SHIFT_SCALAR(VQRSHL_U_scalar, vqrshli_u) -#define DO_VSHLL(INSN, FN) \ - static bool trans_##INSN(DisasContext *s, arg_2shift *a) \ - { \ - static MVEGenTwoOpShiftFn * const fns[] = { \ - gen_helper_mve_##FN##b, \ - gen_helper_mve_##FN##h, \ - }; \ - return do_2shift(s, a, fns[a->size], false); \ +#define DO_VSHLL(INSN, FN) \ + static bool trans_##INSN(DisasContext *s, arg_2shift *a) \ + { \ + static MVEGenTwoOpShiftFn * const fns[] = { \ + gen_helper_mve_##FN##b, \ + gen_helper_mve_##FN##h, \ + }; \ + return do_2shift_vec(s, a, fns[a->size], false, do_gvec_##FN); \ } +/* + * For the VSHLL vector helpers, the vece is the size of the input + * (ie MO_8 or MO_16); the helpers want to work in the output size. + * The shift count can be 0..<input size>, inclusive. (0 is VMOVL.) + */ +static void do_gvec_vshllbs(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t shift, uint32_t oprsz, uint32_t maxsz) +{ + unsigned ovece = vece + 1; + unsigned ibits = vece == MO_8 ? 8 : 16; + tcg_gen_gvec_shli(ovece, dofs, aofs, ibits, oprsz, maxsz); + tcg_gen_gvec_sari(ovece, dofs, dofs, ibits - shift, oprsz, maxsz); +} + +static void do_gvec_vshllbu(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t shift, uint32_t oprsz, uint32_t maxsz) +{ + unsigned ovece = vece + 1; + tcg_gen_gvec_andi(ovece, dofs, aofs, + ovece == MO_16 ? 0xff : 0xffff, oprsz, maxsz); + tcg_gen_gvec_shli(ovece, dofs, dofs, shift, oprsz, maxsz); +} + +static void do_gvec_vshllts(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t shift, uint32_t oprsz, uint32_t maxsz) +{ + unsigned ovece = vece + 1; + unsigned ibits = vece == MO_8 ? 8 : 16; + if (shift == 0) { + tcg_gen_gvec_sari(ovece, dofs, aofs, ibits, oprsz, maxsz); + } else { + tcg_gen_gvec_andi(ovece, dofs, aofs, + ovece == MO_16 ? 0xff00 : 0xffff0000, oprsz, maxsz); + tcg_gen_gvec_sari(ovece, dofs, dofs, ibits - shift, oprsz, maxsz); + } +} + +static void do_gvec_vshlltu(unsigned vece, uint32_t dofs, uint32_t aofs, + int64_t shift, uint32_t oprsz, uint32_t maxsz) +{ + unsigned ovece = vece + 1; + unsigned ibits = vece == MO_8 ? 8 : 16; + if (shift == 0) { + tcg_gen_gvec_shri(ovece, dofs, aofs, ibits, oprsz, maxsz); + } else { + tcg_gen_gvec_andi(ovece, dofs, aofs, + ovece == MO_16 ? 0xff00 : 0xffff0000, oprsz, maxsz); + tcg_gen_gvec_shri(ovece, dofs, dofs, ibits - shift, oprsz, maxsz); + } +} + DO_VSHLL(VSHLL_BS, vshllbs) DO_VSHLL(VSHLL_BU, vshllbu) DO_VSHLL(VSHLL_TS, vshllts) |