libbb/sha1: tweak comments
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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@ -34,7 +34,7 @@
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#define MSG3 %xmm6
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#define SHUF_MASK %xmm7
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.balign 8 # allow decoders to fetch at least 2 first insns
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.balign 8 # allow decoders to fetch at least 3 first insns
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sha1_process_block64_shaNI:
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pushl %ebp
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movl %esp, %ebp
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@ -44,8 +44,8 @@ sha1_process_block64_shaNI:
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/* load initial hash values */
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xor128 E0, E0
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movu128 76(%eax), ABCD
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pinsrd $3, 76+4*4(%eax), E0 # load to upper 32-bit word
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shuf128_32 $0x1B, ABCD, ABCD # 00011011: bswap
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pinsrd $3, 76+4*4(%eax), E0 # load to uppermost 32-bit word
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shuf128_32 $0x1B, ABCD, ABCD # DCBA -> ABCD
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mova128 PSHUFFLE_BYTE_FLIP_MASK, SHUF_MASK
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@ -40,8 +40,8 @@ sha1_process_block64_shaNI:
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xor128 E0, E0
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movu128 80(%rdi), ABCD
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pinsrd $3, 80+4*4(%rdi), E0 # load to upper 32-bit word
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shuf128_32 $0x1B, ABCD, ABCD # 00011011: bswap
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pinsrd $3, 80+4*4(%rdi), E0 # load to uppermost 32-bit word
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shuf128_32 $0x1B, ABCD, ABCD # DCBA -> ABCD
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mova128 PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK
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