import bigints, math, strutils, tables, utils/padding type TypeHint* {.pure.} = enum UInt256, Bytes, Any Int256* = BigInt #distinct int # TODO proc int256*(i: int): Int256 = i.initBigInt template i256*(i: int): Int256 = i.int256 # TODO # We'll have a fast fixed i256, for now this works proc `==`*(a: Int256, b: int): bool = a == b.i256 proc `!=`*(a: Int256, b: int): bool = a != b.i256 proc `^`*(base: int; exp: int): Int256 = let base = base.initBigInt var ex = exp result = 1.initBigInt while ex > 0: result *= base dec(ex) proc `^`*(left: Int256, right: int): Int256 = var value = right.initBigInt result = 1.initBigInt var m = right.i256 while value > 0.i256: result = result * m value -= 1.i256 proc `>`*(a: Int256, b: int): bool = a > b.i256 proc `<`*(a: Int256, b: int): bool = a < b.i256 proc `mod`*(a: Int256, b: int): Int256 = a mod b.i256 proc `div`*(a: Int256, b: int): Int256 = a div b.i256 proc log256*(a: Int256): Int256 = # TODO 2.i256 proc setXLen[T](s: var seq[T]; newlen: Natural) = if s.isNil: s = newSeq[T](newlen) else: s.setLen(newlen) template mapOp(op: untyped): untyped = proc `op`*(left: Int256, right: Int256): Int256 = result = left.initBigInt var maxRight = right.initBigInt var l = max(left.limbs.len, right.limbs.len) result.limbs.setXLen(l) maxRight.limbs.setXLen(l) for z in 0 ..< l: result.limbs[z] = `op`(result.limbs[z], maxRight.limbs[z]) mapOp(`and`) mapOp(`or`) mapOp(`xor`) proc `abs`*(a: Int256): Int256 = if a >= 0.i256: a else: -a proc `getInt`*(a: Int256): int = a.limbs[0].int let UINT_256_MAX*: Int256 = 2 ^ 256 - 1 UINT_256_CEILING*: Int256 = 2 ^ 256 UINT_255_MAX*: Int256 = 2 ^ (256 - 1) - 1 UINT_255_CEILING*: Int256 = 2 ^ (256 - 1) NULLBYTE* = cstring"\x00" EMPTYWORD* = repeat(NULLBYTE, 32) UINT160CEILING*: Int256 = 2 ^ 160 CREATE_CONTRACT_ADDRESS* = cstring"" ZERO_ADDRESS* = repeat(cstring"\x00", 20) ZERO_HASH32* = repeat(cstring"\x00", 20) STACKDEPTHLIMIT* = 1024 GAS_NULL* = 0.i256 GAS_ZERO* = 0.i256 GAS_BASE* = 2.i256 GAS_VERY_LOW* = 3.i256 GAS_LOW* = 5.i256 GAS_MID* = 8.i256 GAS_HIGH* = 10.i256 GAS_EXT_CODE* = 20.i256 GAS_BALANCE* = 20.i256 GAS_SLOAD* = 50.i256 GAS_JUMP_DEST* = 1.i256 GAS_SSET* = 20_000.i256 GAS_SRESET* = 5000.i256 GAS_EXT_CODE_COST* = 700.i256 GAS_COINBASE* = 20.i256 GAS_SLOAD_COST* = 20.i256 GAS_SELF_DESTRUCT_COST* = 5_000.i256 GAS_IN_HANDLER* = 0.i256 # to be calculated in handler REFUNDS_CLEAR* = 15_000.i256 GAS_SELF_DESTRUCT* = 0.i256 GAS_SELF_DESTRUCT_NEW_ACCOUNT* = 25_000.i256 GAS_CREATE* = 32_000.i256 GAS_CALL* = 40.i256 GASCALLVALUE = 9_000.i256 GAS_CALL_STIPEND* = 2_300.i256 GAS_NEW_ACCOUNT* = 25_000.i256 GAS_COST_BALANCE* = 400.i256 GAS_EXP* = 10.i256 GAS_EXP_BYTE* = 10.i256 GAS_MEMORY* = 3.i256 GAS_TX_CREATE* = 32_000.i256 GAS_TX_DATA_ZERO* = 4.i256 GAS_TX_DATA_NON_ZERO* = 68.i256 GAS_TX* = 21_000.i256 GAS_LOG* = 375.i256 GAS_LOG_DATA* = 8.i256 GAS_LOG_TOPIC* = 375.i256 GAS_SHA3* = 30.i256 GAS_SHA3_WORD* = 6.i256 GAS_COPY* = 3.i256 GAS_BLOCK_HASH* = 20.i256 GAS_CODE_DEPOSIT* = 200.i256 GAS_MEMORY_QUADRATIC_DENOMINATOR* = 512.i256 GAS_SHA256* = 60.i256 GAS_SHA256WORD* = 12.i256 GAS_RIP_EMD160* = 600.i256 GAS_RIP_EMD160WORD* = 120.i256 GAS_IDENTITY* = 15.i256 GAS_IDENTITY_WORD* = 3 GAS_ECRECOVER* = 3_000.i256 GAS_ECADD* = 500.i256 GAS_ECMUL* = 40_000.i256 GAS_ECPAIRING_BASE* = 100_000.i256 GAS_ECPAIRING_PER_POINT* = 80_000.i256 GAS_LIMIT_EMA_DENOMINATOR* = 1_024.i256 GAS_LIMIT_ADJUSTMENT_FACTOR* = 1_024.i256 GAS_LIMIT_MAXIMUM*: Int256 = 2 ^ 63 - 1 GAS_LIMIT_USAGE_ADJUSTMENT_NUMERATOR* = 3.i256 GAS_LIMIT_USAGE_ADJUSTMENT_DENOMINATOR* = 2.i256 DIFFICULTY_ADJUSTMENT_DENOMINATOR* = 2_048.i256 DIFFICULTY_MINIMUM* = 131_072.i256 BOMB_EXPONENTIAL_PERIOD* = 100_000.i256 BOMB_EXPONENTIAL_FREE_PERIODS* = 2.i256 BLOCK_REWARD* = 5.i256 * 2.i256 # denoms.ether UNCLE_DEPTH_PENALTY_FACTOR* = 8.i256 MAX_UNCLE_DEPTH* = 6.i256 MAX_UNCLES* = 2.i256 SECPK1_P*: Int256 = 2 ^ 256 - 2 ^ 32 - 977 SECPK1_N*: Int256 = "115792089237316195423570985008687907852837564279074904382605163141518161494337".initBigInt SECPK1_A* = 0.i256 SECPK1_B* = 7.i256 SECPK1_Gx* = 0.i256 SECPK1_Gy* = 0.i256 SECPK1_G* = (SECPK1Gx, SECPK1Gy) EMPTY_UNCLE_HASH* = cstring"\x1d\xccM\xe8\xde\xc7]z\xab\x85\xb5g\xb6\xcc\xd4\x1a\xd3\x12E\x1b\x94\x8at\x13\xf0\xa1B\xfd@\xd4\x93G" GENESIS_BLOCK_NUMBER* = 0.i256 GENESIS_DIFFICULTY* = 131_072.i256 GENESIS_GAS_LIMIT* = 3_141_592.i256 GENESIS_PARENT_HASH* = ZERO_HASH32 GENESIS_COINBASE* = ZERO_ADDRESS GENESIS_NONCE* = cstring"\x00\x00\x00\x00\x00\x00\x00B" GENESIS_MIX_HASH* = ZERO_HASH32 GENESIS_EXTRA_DATA = cstring"" EMPTYSHA3 = cstring"\xc5\xd2F\x01\x86\xf7#<\x92~}\xb2\xdc\xc7\x03\xc0\xe5\x00\xb6S\xca\x82';{\xfa\xd8\x04]\x85\xa4p" BLANK_ROOT_HASH* = cstring"V\xe8\x1f\x17\x1b\xccU\xa6\xff\x83E\xe6\x92\xc0\xf8n[H\xe0\x1b\x99l\xad\xc0\x01b/\xb5\xe3c\xb4!" GAS_MOD_EXP_QUADRATIC_DENOMINATOR* = 20.i256 MAX_PREV_HEADER_DEPTH* = 256.i256