diff options
| -rw-r--r-- | lib/libtpm/sha256.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/lib/libtpm/sha256.c b/lib/libtpm/sha256.c index c6b8767..1a0aa9a 100644 --- a/lib/libtpm/sha256.c +++ b/lib/libtpm/sha256.c @@ -22,10 +22,16 @@ typedef struct _sha256_ctx { uint32_t h[8]; } sha256_ctx; -static inline uint32_t rotr(uint32_t x, uint8_t n) -{ - return (x >> n) | (x << (32 - n)); -} +#define rotr(VAL, N) \ +({ \ + uint32_t res; \ + __asm__ ( \ + "rotrwi %0, %1, %2\n\t" \ + : "=r" (res) \ + : "r" (VAL), "i" (N) \ + ); \ + res; \ +}) static inline uint32_t Ch(uint32_t x, uint32_t y, uint32_t z) { |