diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2022-07-08 20:45:17 +0530 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2022-07-11 13:19:35 +0100 |
| commit | 4c46a5f12c1802f79a4ed98fff8ff10d8e8c32ea (patch) | |
| tree | 400c9a6146421b52533d504514e4743ecafd65c1 /target | |
| parent | 8713f73e5338469d07c3e95a8dc9bbece919974b (diff) | |
target/arm: Implement SME LDR, STR
We can reuse the SVE functions for LDR and STR, passing in the
base of the ZA vector and a zero offset.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220708151540.18136-23-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target')
| -rw-r--r-- | target/arm/sme.decode | 7 | ||||
| -rw-r--r-- | target/arm/translate-sme.c | 24 |
2 files changed, 31 insertions, 0 deletions
diff --git a/target/arm/sme.decode b/target/arm/sme.decode index 900e3f2a07..f1ebd857a5 100644 --- a/target/arm/sme.decode +++ b/target/arm/sme.decode @@ -46,3 +46,10 @@ LDST1 1110000 0 esz:2 st:1 rm:5 v:1 .. pg:3 rn:5 0 za_imm:4 \ &ldst rs=%mova_rs LDST1 1110000 111 st:1 rm:5 v:1 .. pg:3 rn:5 0 za_imm:4 \ &ldst esz=4 rs=%mova_rs + +&ldstr rv rn imm +@ldstr ....... ... . ...... .. ... rn:5 . imm:4 \ + &ldstr rv=%mova_rs + +LDR 1110000 100 0 000000 .. 000 ..... 0 .... @ldstr +STR 1110000 100 1 000000 .. 000 ..... 0 .... @ldstr diff --git a/target/arm/translate-sme.c b/target/arm/translate-sme.c index 42d14b883a..35c2644812 100644 --- a/target/arm/translate-sme.c +++ b/target/arm/translate-sme.c @@ -243,3 +243,27 @@ static bool trans_LDST1(DisasContext *s, arg_LDST1 *a) tcg_temp_free_i64(addr); return true; } + +typedef void GenLdStR(DisasContext *, TCGv_ptr, int, int, int, int); + +static bool do_ldst_r(DisasContext *s, arg_ldstr *a, GenLdStR *fn) +{ + int svl = streaming_vec_reg_size(s); + int imm = a->imm; + TCGv_ptr base; + + if (!sme_za_enabled_check(s)) { + return true; + } + + /* ZA[n] equates to ZA0H.B[n]. */ + base = get_tile_rowcol(s, MO_8, a->rv, imm, false); + + fn(s, base, 0, svl, a->rn, imm * svl); + + tcg_temp_free_ptr(base); + return true; +} + +TRANS_FEAT(LDR, aa64_sme, do_ldst_r, a, gen_sve_ldr) +TRANS_FEAT(STR, aa64_sme, do_ldst_r, a, gen_sve_str) |