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include/qemu/int128.h: Add function to create Int128 from int64_t 

int128_make64() creates an Int128 from an unsigned 64 bit value; add
a function int128_makes64() creating an Int128 from a signed 64 bit
value.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210614151007.4545-34-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2021-06-14 16:09:43 +01:00
parent dbcf6f9367
commit 703235a303
1 changed files with 10 additions and 0 deletions
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10
include/qemu/int128.h
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@ -11,6 +11,11 @@ static inline Int128 int128_make64(uint64_t a)
return a;
}
static inline Int128 int128_makes64(int64_t a)
{
return a;
}
static inline Int128 int128_make128(uint64_t lo, uint64_t hi)
{
return (__uint128_t)hi << 64 | lo;
@ -167,6 +172,11 @@ static inline Int128 int128_make64(uint64_t a)
return (Int128) { a, 0 };
}
static inline Int128 int128_makes64(int64_t a)
{
return (Int128) { a, a >> 63 };
}
static inline Int128 int128_make128(uint64_t lo, uint64_t hi)
{
return (Int128) { lo, hi };