2022-10-17 11:31:08 -07:00
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// Computes Keccak256(input_word). Clobbers @SEGMENT_KERNEL_GENERAL.
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//
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// Pre stack: input_word
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// Post stack: hash
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%macro keccak256_word(num_bytes)
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// Since KECCAK_GENERAL takes its input from memory, we will first write
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// input_word's bytes to @SEGMENT_KERNEL_GENERAL[0..$num_bytes].
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%stack (word) -> (0, @SEGMENT_KERNEL_GENERAL, 0, word, $num_bytes, %%after_mstore)
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%jump(mstore_unpacking)
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%%after_mstore:
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2022-10-26 16:44:05 +02:00
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// stack: offset
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%stack (offset) -> (0, @SEGMENT_KERNEL_GENERAL, 0, $num_bytes) // context, segment, offset, len
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2022-10-17 11:31:08 -07:00
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KECCAK_GENERAL
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%endmacro
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