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@ -108,43 +108,10 @@ namespace crypto |
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void operator^=(const ChipherBlock& other) // XOR
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void operator^=(const ChipherBlock& other) // XOR
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if (!(((size_t)buf | (size_t)other.buf) & 0x0F)) // multiple of 16 ?
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if (!(((size_t)buf | (size_t)other.buf) & 0x03)) // multiple of 4 ?
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// try 128 bits if applicable
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#ifdef __AVX__ |
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if (i2p::cpu::avx) |
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{ |
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__asm__ |
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( |
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"vmovaps (%[buf]), %%xmm0 \n" |
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"vmovaps (%[other]), %%xmm1 \n" |
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"vxorps %%xmm0, %%xmm1, %%xmm0 \n" |
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"vmovaps %%xmm0, (%[buf]) \n" |
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: |
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: [buf]"r"(buf), [other]"r"(other.buf) |
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: "%xmm0", "%xmm1", "memory" |
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); |
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} |
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else |
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#endif |
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{ |
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#if defined(__SSE__) // SSE
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__asm__ |
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( |
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"movaps (%[buf]), %%xmm0 \n" |
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"movaps (%[other]), %%xmm1 \n" |
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"pxor %%xmm1, %%xmm0 \n" |
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"movaps %%xmm0, (%[buf]) \n" |
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: |
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: [buf]"r"(buf), [other]"r"(other.buf) |
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: "%xmm0", "%xmm1", "memory" |
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); |
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#else |
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// if not we always can cast to uint32_t *
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for (int i = 0; i < 4; i++) |
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for (int i = 0; i < 4; i++) |
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reinterpret_cast<uint32_t *>(buf)[i] ^= reinterpret_cast<const uint32_t *>(other.buf)[i]; |
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reinterpret_cast<uint32_t *>(buf)[i] ^= reinterpret_cast<const uint32_t *>(other.buf)[i]; |
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#endif |
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} |
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} |
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} |
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else |
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else |
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{ |
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{ |
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