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Code Issues Releases Activity

fixed misalignment

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orignal 2014-11-19 11:01:04 -05:00
parent 69cbd71fe0
commit c3e329e406
1 changed files with 17 additions and 4 deletions
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21
aes.h
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@ -10,15 +10,28 @@ namespace i2p
{ {
namespace crypto namespace crypto
{ {
union ChipherBlock struct ChipherBlock
{ {
uint8_t buf[16]; uint8_t buf[16];
uint64_t ll[2];
void operator^=(const ChipherBlock& other) // XOR void operator^=(const ChipherBlock& other) // XOR
{ {
ll[0] ^= other.ll[0]; #if defined(__x86_64__) // for Intel x64
ll[1] ^= other.ll[1]; __asm__
(
"movups (%[buf]), %%xmm0 \n"
"movups (%[other]), %%xmm1 \n"
"pxor %%xmm1, %%xmm0 \n"
"movups %%xmm0, (%[buf]) \n"
:
: [buf]"r"(buf), [other]"r"(other.buf)
: "%xmm0", "%xmm1", "memory"
);
#else
// TODO: implement it better
for (int i = 0; i < 16; i++)
buf[i] ^= other.buf[i];
#endif
} }
}; };