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64-bit bitwise manipulation functions, by Gautam Tirumala.

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This commit is contained in:
Ben Gras
2010-07-15 23:48:56 +00:00
parent ee1b608bcf
commit 6c66933f90
3 changed files with 110 additions and 0 deletions
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5
include/minix/u64.h
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@@ -34,6 +34,11 @@ int cmp64ul(u64_t i, unsigned long j);
unsigned long ex64lo(u64_t i);
unsigned long ex64hi(u64_t i);
u64_t make64(unsigned long lo, unsigned long hi);
u64_t rrotate64(u64_t x, unsigned short b);
u64_t rshift64(u64_t x, unsigned short b);
u64_t xor64(u64_t a, u64_t b);
u64_t and64(u64_t a, u64_t b);
u64_t not64(u64_t a);
#define is_zero64(i) ((i).lo == 0 && (i).hi == 0)
#define make_zero64(i) do { (i).lo = (i).hi = 0; } while(0)