diff options
Diffstat (limited to 'include/qemu/int128.h')
-rw-r--r-- | include/qemu/int128.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/qemu/int128.h b/include/qemu/int128.h index b3864b6..bfe7678 100644 --- a/include/qemu/int128.h +++ b/include/qemu/int128.h @@ -34,6 +34,25 @@ static inline Int128 int128_2_64(void) return (Int128) { 0, 1 }; } +static inline Int128 int128_and(Int128 a, Int128 b) +{ + return (Int128) { a.lo & b.lo, a.hi & b.hi }; +} + +static inline Int128 int128_rshift(Int128 a, int n) +{ + int64_t h; + if (!n) { + return a; + } + h = a.hi >> (n & 63); + if (n >= 64) { + return (Int128) { h, h >> 63 }; + } else { + return (Int128) { (a.lo >> n) | (a.hi << (64 - n)), h }; + } +} + static inline Int128 int128_add(Int128 a, Int128 b) { Int128 r = { a.lo + b.lo, a.hi + b.hi }; |