import ttmath, math, strutils, tables, utils/padding, rlp # rlpFields UInt256, table type TypeHint* {.pure.} = enum UInt256, Bytes, Any #Bytes* = seq[byte] # Int256* = BigInt #distinct int # TODO proc int256*(i: int): Int256 = i.i256 # template i256*(i: int): Int256 = # i.initBigInt template i256*(i: Int256): Int256 = i template u256*(i: int): UInt256 = i.uint.u256 template u256*(i: UInt256): UInt256 = i template getInt*(i: int): int = i # 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 `==`*(a: UInt256, b: int): bool = a == b.u256 proc `!=`*(a: UInt256, b: int): bool = a != b.u256 proc `^`*(base: int; exp: int): UInt256 = let base = base.u256 var ex = exp result = 1.u256 while ex > 0: result *= base dec(ex) proc `^`*(left: Int256, right: int): Int256 = var value = right.i256 result = 1.i256 var m = right.i256 while value > 0.i256: result = result * m value -= 1.i256 proc `^`*(left: UInt256, right: int): UInt256 = var value = right.u256 result = 1.u256 var m = right.u256 while value > 0.u256: result = result * m value -= 1.u256 proc `>`*(a: Int256, b: int): bool = a > b.i256 proc `<`*(a: Int256, b: int): bool = a < b.i256 proc `>`*(a: UInt256, b: int): bool = a > b.u256 proc `<`*(a: UInt256, b: int): bool = a < b.u256 proc `mod`*(a: Int256, b: int): Int256 = a mod b.i256 proc `div`*(a: Int256, b: int): Int256 = a div b.i256 proc `mod`*(a: UInt256, b: int): UInt256 = a mod b.u256 proc `div`*(a: UInt256, b: int): UInt256 = a div b.u256 proc log256*(a: Int256): Int256 = # TODO 2.i256 proc log256*(a: UInt256): UInt256 = # TODO 2.u256 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: int): Int256 = result = left.i256 result = `op`(result, right.i256) proc `op`*(left: UInt256, right: int): UInt256 = result = left.u256 result = `op`(result, right.u256) mapOp(`and`) mapOp(`or`) mapOp(`xor`) proc `abs`*(a: Int256): Int256 = if a >= 0.i256: a else: -a # constants let UINT_256_MAX*: UInt256 = 2 ^ 256 - 1.u256 UINT_256_CEILING*: UInt256 = 2 ^ 256 UINT_255_MAX*: UInt256 = 2 ^ (255 - 1) - 1.u256 UINT_255_CEILING*: UInt256 = 2 ^ 255 UINT_256_CEILING_INT*: Int256 = 2.i256 ^ 256 UINT_255_MAX_INT*: Int256 = 2.i256 ^ (255 - 1) - 1.i256 UINT_256_MAX_INT*: Int256 = 2.i256 ^ 256 - 1.i256 UINT_255_CEILING_INT*: Int256 = 2.i256 ^ 255 NULLBYTE* = "\x00" EMPTYWORD* = repeat(NULLBYTE, 32) UINT160CEILING*: UInt256 = 2 ^ 160 CREATE_CONTRACT_ADDRESS* = "" ZERO_ADDRESS* = repeat("\x00", 20) ZERO_HASH32* = repeat("\x00", 20) STACK_DEPTH_LIMIT* = 1024 GAS_NULL* = 0.u256 GAS_ZERO* = 0.u256 GAS_BASE* = 2.u256 GAS_VERY_LOW* = 3.u256 GAS_LOW* = 5.u256 GAS_MID* = 8.u256 GAS_HIGH* = 10.u256 GAS_EXT_CODE* = 20.u256 GAS_BALANCE* = 20.u256 GAS_SLOAD* = 50.u256 GAS_JUMP_DEST* = 1.u256 GAS_SSET* = 20_000.u256 GAS_SRESET* = 5_000.u256 GAS_EXT_CODE_COST* = 700.u256 GAS_COINBASE* = 20.u256 GAS_SLOAD_COST* = 20.u256 GAS_SELF_DESTRUCT_COST* = 0.u256 GAS_IN_HANDLER* = 0.u256 # to be calculated in handler REFUND_SCLEAR* = 15_000.u256 GAS_SELF_DESTRUCT* = 0.u256 GAS_SELF_DESTRUCT_NEW_ACCOUNT* = 25_000.u256 GAS_CREATE* = 32_000.u256 GAS_CALL* = 40.u256 GAS_CALL_VALUE* = 9_000.u256 GAS_CALL_STIPEND* = 2_300.u256 GAS_NEW_ACCOUNT* = 25_000.u256 GAS_COST_BALANCE* = 400.u256 GAS_EXP* = 10.u256 GAS_EXP_BYTE* = 10.u256 GAS_MEMORY* = 3.u256 GAS_TX_CREATE* = 32_000.u256 GAS_TX_DATA_ZERO* = 4.u256 GAS_TX_DATA_NON_ZERO* = 68.u256 GAS_TX* = 21_000.u256 GAS_LOG* = 375.u256 GAS_LOG_DATA* = 8.u256 GAS_LOG_TOPIC* = 375.u256 GAS_SHA3* = 30.u256 GAS_SHA3_WORD* = 6.u256 GAS_COPY* = 3.u256 GAS_BLOCK_HASH* = 20.u256 GAS_CODE_DEPOSIT* = 200.u256 GAS_MEMORY_QUADRATIC_DENOMINATOR* = 512.u256 GAS_SHA256* = 60.u256 GAS_SHA256WORD* = 12.u256 GAS_RIP_EMD160* = 600.u256 GAS_RIP_EMD160WORD* = 120.u256 GAS_IDENTITY* = 15.u256 GAS_IDENTITY_WORD* = 3 GAS_ECRECOVER* = 3_000.u256 GAS_ECADD* = 500.u256 GAS_ECMUL* = 40_000.u256 GAS_ECPAIRING_BASE* = 100_000.u256 GAS_ECPAIRING_PER_POINT* = 80_000.u256 GAS_LIMIT_EMA_DENOMINATOR* = 1_024.u256 GAS_LIMIT_ADJUSTMENT_FACTOR* = 1_024.u256 GAS_LIMIT_MAXIMUM*: UInt256 = 2 ^ 63 - 1.u256 GAS_LIMIT_USAGE_ADJUSTMENT_NUMERATOR* = 3.u256 GAS_LIMIT_USAGE_ADJUSTMENT_DENOMINATOR* = 2.u256 DIFFICULTY_ADJUSTMENT_DENOMINATOR* = 2_048.u256 DIFFICULTY_MINIMUM* = 131_072.u256 BOMB_EXPONENTIAL_PERIOD* = 100_000.u256 BOMB_EXPONENTIAL_FREE_PERIODS* = 2.u256 BLOCK_REWARD* = 5.u256 * 2.u256 # denoms.ether UNCLE_DEPTH_PENALTY_FACTOR* = 8.u256 MAX_UNCLE_DEPTH* = 6.u256 MAX_UNCLES* = 2.u256 SECPK1_P*: UInt256 = 2 ^ 256 - 2 ^ 32 - 977.u256 SECPK1_N*: UInt256 = "115792089237316195423570985008687907852837564279074904382605163141518161494337".u256 SECPK1_A* = 0.u256 SECPK1_B* = 7.u256 SECPK1_Gx* = 0.u256 SECPK1_Gy* = 0.u256 SECPK1_G* = (SECPK1Gx, SECPK1Gy) EMPTY_UNCLE_HASH* = "\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.u256 GENESIS_DIFFICULTY* = 131_072.u256 GENESIS_GAS_LIMIT* = 3_141_592.u256 GENESIS_PARENT_HASH* = ZERO_HASH32 GENESIS_COINBASE* = ZERO_ADDRESS GENESIS_NONCE* = "\x00\x00\x00\x00\x00\x00\x00B" GENESIS_MIX_HASH* = ZERO_HASH32 GENESIS_EXTRA_DATA* = "" EMPTYSHA3 = "\xc5\xd2F\x01\x86\xf7#<\x92~}\xb2\xdc\xc7\x03\xc0\xe5\x00\xb6S\xca\x82';{\xfa\xd8\x04]\x85\xa4p" BLANK_ROOT_HASH* = "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.u256 MAX_PREV_HEADER_DEPTH* = 256.u256