diff options
| author | Frank Chang <frank.chang@sifive.com> | 2022-01-18 09:45:06 +0800 |
|---|---|---|
| committer | Alistair Francis <alistair.francis@wdc.com> | 2022-01-21 15:52:56 +1000 |
| commit | 494104093fafab12208a8f1f0cb2ab5f5c8c7035 (patch) | |
| tree | 8aa14fe1e5071ea624b4d545a242fad9fed57f4d /target | |
| parent | c7a26fb2f6bafd45b983d81d180f624c0e8c4d2b (diff) | |
| download | qemu-494104093fafab12208a8f1f0cb2ab5f5c8c7035.zip qemu-494104093fafab12208a8f1f0cb2ab5f5c8c7035.tar.gz qemu-494104093fafab12208a8f1f0cb2ab5f5c8c7035.tar.bz2 | |
target/riscv: rvv-1.0: Add Zve64f support for load and store insns
All Zve* extensions support all vector load and store instructions,
except Zve64* extensions do not support EEW=64 for index values when
XLEN=32.
Signed-off-by: Frank Chang <frank.chang@sifive.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20220118014522.13613-4-frank.chang@sifive.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'target')
| -rw-r--r-- | target/riscv/insn_trans/trans_rvv.c.inc | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_trans/trans_rvv.c.inc index 5b47729..0bf41aa 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -263,10 +263,21 @@ static bool vext_check_st_index(DisasContext *s, int vd, int vs2, int nf, uint8_t eew) { int8_t emul = eew - s->sew + s->lmul; - return (emul >= -3 && emul <= 3) && - require_align(vs2, emul) && - require_align(vd, s->lmul) && - require_nf(vd, nf, s->lmul); + bool ret = (emul >= -3 && emul <= 3) && + require_align(vs2, emul) && + require_align(vd, s->lmul) && + require_nf(vd, nf, s->lmul); + + /* + * All Zve* extensions support all vector load and store instructions, + * except Zve64* extensions do not support EEW=64 for index values + * when XLEN=32. (Section 18.2) + */ + if (get_xl(s) == MXL_RV32) { + ret &= (!has_ext(s, RVV) && s->ext_zve64f ? eew != MO_64 : true); + } + + return ret; } /* |