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libdecnumber: Introduce decNumberIntegralToInt128

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This will be used to implement PowerPC's dctfixqq.

Signed-off-by: Luis Pires <luis.pires@eldorado.org.br>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20211029192417.400707-7-luis.pires@eldorado.org.br>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Luis Pires 2021-10-29 16:24:08 -03:00 • committed by David Gibson
parent e06049f380
commit 21d7826fdb
4 changed files with 102 additions and 4 deletions
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2
include/libdecnumber/decNumber.h
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@ -124,6 +124,8 @@
uint32_t decNumberToUInt32(const decNumber *, decContext *);
int32_t decNumberToInt32(const decNumber *, decContext *);
int64_t decNumberIntegralToInt64(const decNumber *dn, decContext *set);
void decNumberIntegralToInt128(const decNumber *dn, decContext *set,
uint64_t *plow, uint64_t *phigh);
uint8_t * decNumberGetBCD(const decNumber *, uint8_t *);
decNumber * decNumberSetBCD(decNumber *, const uint8_t *, uint32_t);