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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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18
target/ppc/int_helper.c
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@ -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
/*****************************************************************************/