350 basic cleanup of zkevm opcode circuits#361
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Mar 17, 2025
| chunks[4 * chunk_idx + 2] * two_32 + chunks[4 * chunk_idx + 3] * two_48; | ||
| } | ||
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| // computes 128-bit chunks of r*b + q - a |
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Shall we use conventional (?) q*b + r - a?
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| static const unsigned int two_15 = 32768; | ||
| static const unsigned int two_16 = 65536; | ||
| static const nil::crypto3::multiprecision::big_uint<64> two_32 = 4294967296; | ||
| static const nil::crypto3::multiprecision::big_uint<64> two_48 = 281474976710656; | ||
| static const nil::crypto3::multiprecision::big_uint<92> two_64 = 0x10000000000000000_big_uint92; | ||
| static const nil::crypto3::multiprecision::big_uint<130> two_128 = 0x100000000000000000000000000000000_big_uint130; | ||
| static const nil::crypto3::multiprecision::big_uint<205> | ||
| two_192 = 0x1000000000000000000000000000000000000000000000000_big_uint205; |
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Suggested change
| static const unsigned int two_15 = 32768; | |
| static const unsigned int two_16 = 65536; | |
| static const nil::crypto3::multiprecision::big_uint<64> two_32 = 4294967296; | |
| static const nil::crypto3::multiprecision::big_uint<64> two_48 = 281474976710656; | |
| static const nil::crypto3::multiprecision::big_uint<92> two_64 = 0x10000000000000000_big_uint92; | |
| static const nil::crypto3::multiprecision::big_uint<130> two_128 = 0x100000000000000000000000000000000_big_uint130; | |
| static const nil::crypto3::multiprecision::big_uint<205> | |
| two_192 = 0x1000000000000000000000000000000000000000000000000_big_uint205; | |
| static const uint32_t two_15 = 1 << 15; | |
| static const uint32_t two_16 = 1 << 16; | |
| static const nil::crypto3::multiprecision::big_uint<64> two_32 = 1ull << 32; | |
| static const nil::crypto3::multiprecision::big_uint<64> two_48 = 1ull << 48; | |
| static const nil::crypto3::multiprecision::big_uint<92> two_64 = 1_big_uint92 << 64; | |
| static const nil::crypto3::multiprecision::big_uint<130> two_128 = 1_big_uint130 << 128; | |
| static const nil::crypto3::multiprecision::big_uint<205> two_192 = 1_big_uint205 << 192; |
| two_192 = 0x1000000000000000000000000000000000000000000000000_big_uint205; | ||
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| template<typename T, typename V = T> | ||
| T chunk_sum_64(const std::vector<V> &chunks, const unsigned char chunk_idx) { |
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I'd rather have it returning a vector with all the chunks, without specifying chunk_idx
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Moved common power-of-two constants and multiplication-computing functions to util.hpp