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target/ppc: Implement pextd instruction

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Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Matheus Ferst <matheus.ferst@eldorado.org.br>
Message-Id: <20211029202424.175401-11-matheus.ferst@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Matheus Ferst 2021-10-29 17:24:00 -03:00 committed by David Gibson
parent 21ba6e5873
commit 8bdb760606
4 changed files with 32 additions and 0 deletions
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1
target/ppc/helper.h
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@ -49,6 +49,7 @@ DEF_HELPER_3(sraw, tl, env, tl, tl)
DEF_HELPER_FLAGS_2(cfuged, TCG_CALL_NO_RWG_SE, i64, i64, i64)
#if defined(TARGET_PPC64)
DEF_HELPER_FLAGS_2(PDEPD, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(PEXTD, TCG_CALL_NO_RWG_SE, i64, i64, i64)
DEF_HELPER_FLAGS_2(cmpeqb, TCG_CALL_NO_RWG_SE, i32, tl, tl)
DEF_HELPER_FLAGS_1(popcntw, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_FLAGS_2(bpermd, TCG_CALL_NO_RWG_SE, i64, i64, i64)

1
target/ppc/insn32.decode
View file

@ -127,6 +127,7 @@ CFUGED 011111 ..... ..... ..... 0011011100 - @X
CNTLZDM 011111 ..... ..... ..... 0000111011 - @X
CNTTZDM 011111 ..... ..... ..... 1000111011 - @X
PDEPD 011111 ..... ..... ..... 0010011100 - @X
PEXTD 011111 ..... ..... ..... 0010111100 - @X
### Float-Point Load Instructions

18
target/ppc/int_helper.c
View file

@ -404,6 +404,24 @@ uint64_t helper_PDEPD(uint64_t src, uint64_t mask)
return result;
}
uint64_t helper_PEXTD(uint64_t src, uint64_t mask)
{
int i, o;
uint64_t result = 0;
if (mask == -1) {
return src;
}
for (o = 0; mask != 0; o++) {
i = ctz64(mask);
mask &= mask - 1;
result |= ((src >> i) & 1) << o;
}
return result;
}
#endif
/*****************************************************************************/

12
target/ppc/translate/fixedpoint-impl.c.inc
View file

@ -481,3 +481,15 @@ static bool trans_PDEPD(DisasContext *ctx, arg_X *a)
#endif
return true;
}
static bool trans_PEXTD(DisasContext *ctx, arg_X *a)
{
REQUIRE_64BIT(ctx);
REQUIRE_INSNS_FLAGS2(ctx, ISA310);
#if defined(TARGET_PPC64)
gen_helper_PEXTD(cpu_gpr[a->ra], cpu_gpr[a->rt], cpu_gpr[a->rb]);
#else
qemu_build_not_reached();
#endif
return true;
}