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| author | Matheus Ferst <matheus.ferst@eldorado.org.br> | 2021-11-04 09:36:59 -0300 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2021-11-09 10:32:52 +1100 |
| commit | 2cc12af399d6f8abb8433ef7f7e75ece177d4d39 (patch) | |
| tree | f97a0ad0bb3307240eed0f6dd71fe6721bbbd231 /target/ppc/int_helper.c | |
| parent | 2c716b4da5251aa8428bd3a9a4a5cc6a6c2c5c89 (diff) | |
| download | qemu-2cc12af399d6f8abb8433ef7f7e75ece177d4d39.zip qemu-2cc12af399d6f8abb8433ef7f7e75ece177d4d39.tar.gz qemu-2cc12af399d6f8abb8433ef7f7e75ece177d4d39.tar.bz2 | |
target/ppc: Implement Vector Insert from GPR using GPR index insns
Implements the following PowerISA v3.1 instructions:
vinsblx: Vector Insert Byte from GPR using GPR-specified Left-Index
vinshlx: Vector Insert Halfword from GPR using GPR-specified Left-Index
vinswlx: Vector Insert Word from GPR using GPR-specified Left-Index
vinsdlx: Vector Insert Doubleword from GPR using GPR-specified
Left-Index
vinsbrx: Vector Insert Byte from GPR using GPR-specified Right-Index
vinshrx: Vector Insert Halfword from GPR using GPR-specified
Right-Index
vinswrx: Vector Insert Word from GPR using GPR-specified Right-Index
vinsdrx: Vector Insert Doubleword from GPR using GPR-specified
Right-Index
The helpers and do_vinsx receive i64 to allow code sharing with the
future implementation of Vector Insert from VSR using GPR Index.
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20211104123719.323713-6-matheus.ferst@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc/int_helper.c')
| -rw-r--r-- | target/ppc/int_helper.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/target/ppc/int_helper.c b/target/ppc/int_helper.c index 4254173..80b7f88 100644 --- a/target/ppc/int_helper.c +++ b/target/ppc/int_helper.c @@ -1632,6 +1632,36 @@ VINSERT(h, u16) VINSERT(w, u32) VINSERT(d, u64) #undef VINSERT + +#if defined(HOST_WORDS_BIGENDIAN) +#define ELEM_ADDR(VEC, IDX, SIZE) (&(VEC)->u8[IDX]) +#else +#define ELEM_ADDR(VEC, IDX, SIZE) (&(VEC)->u8[15 - (IDX)] - (SIZE) + 1) +#endif + +#define VINSX(SUFFIX, TYPE) \ +void glue(glue(helper_VINS, SUFFIX), LX)(CPUPPCState *env, ppc_avr_t *t, \ + uint64_t val, target_ulong index) \ +{ \ + const int maxidx = ARRAY_SIZE(t->u8) - sizeof(TYPE); \ + target_long idx = index; \ + \ + if (idx < 0 || idx > maxidx) { \ + idx = idx < 0 ? sizeof(TYPE) - idx : idx; \ + qemu_log_mask(LOG_GUEST_ERROR, \ + "Invalid index for Vector Insert Element after 0x" TARGET_FMT_lx \ + ", RA = " TARGET_FMT_ld " > %d\n", env->nip, idx, maxidx); \ + } else { \ + TYPE src = val; \ + memcpy(ELEM_ADDR(t, idx, sizeof(TYPE)), &src, sizeof(TYPE)); \ + } \ +} +VINSX(B, uint8_t) +VINSX(H, uint16_t) +VINSX(W, uint32_t) +VINSX(D, uint64_t) +#undef ELEM_ADDR +#undef VINSX #if defined(HOST_WORDS_BIGENDIAN) #define VEXTRACT(suffix, element) \ void helper_vextract##suffix(ppc_avr_t *r, ppc_avr_t *b, uint32_t index) \ |