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package main
type Opcode byte
const (
STOP = iota
ADD
MUL
SUB
DIV
SDIV
MOD
SMOD
ADDMOD
MULMOD
POP = 0x50
MLOAD = 0x51
MSTORE = 0x52
MSTORE8 = 0x53
PUSH1 = 0x60
PUSH2 = 0x61
PUSH3 = 0x62
PUSH4 = 0x63
PUSH5 = 0x64
PUSH6 = 0x65
PUSH7 = 0x66
PUSH8 = 0x67
PUSH9 = 0x68
PUSH10 = 0x69
PUSH11 = 0x6a
PUSH12 = 0x6b
PUSH13 = 0x6c
PUSH14 = 0x6d
PUSH15 = 0x6e
PUSH16 = 0x6f
PUSH17 = 0x70
PUSH18 = 0x71
PUSH19 = 0x72
PUSH20 = 0x73
PUSH21 = 0x74
PUSH22 = 0x75
PUSH23 = 0x76
PUSH24 = 0x77
PUSH25 = 0x78
PUSH26 = 0x79
PUSH27 = 0x7a
PUSH28 = 0x7b
PUSH29 = 0x7c
PUSH30 = 0x7d
PUSH31 = 0x7e
PUSH32 = 0x7f
RETURN = 0xf3
)
var OpcodeStrings = map[string]Opcode {
"STOP": STOP,
"ADD": ADD,
"MUL": MUL,
"SUB": SUB,
"DIV": DIV,
"SDIV": SDIV,
"MOD": MOD,
"SMOD": SMOD,
"ADDMOD": ADDMOD,
"MULMOD": MULMOD,
"POP": POP,
"MLOAD": MLOAD,
"MSTORE": MSTORE,
"MSTORE8": MSTORE8,
"PUSH": PUSH1,
"PUSH1": PUSH1,
"PUSH2": PUSH2,
"PUSH3": PUSH3,
"PUSH4": PUSH4,
"PUSH5": PUSH5,
"PUSH6": PUSH6,
"PUSH7": PUSH7,
"PUSH8": PUSH8,
"PUSH9": PUSH9,
"PUSH10": PUSH10,
"PUSH11": PUSH11,
"PUSH12": PUSH12,
"PUSH13": PUSH13,
"PUSH14": PUSH14,
"PUSH15": PUSH15,
"PUSH16": PUSH16,
"PUSH17": PUSH17,
"PUSH18": PUSH18,
"PUSH19": PUSH19,
"PUSH20": PUSH20,
"PUSH21": PUSH21,
"PUSH22": PUSH22,
"PUSH23": PUSH23,
"PUSH24": PUSH24,
"PUSH25": PUSH25,
"PUSH26": PUSH26,
"PUSH27": PUSH27,
"PUSH28": PUSH28,
"PUSH29": PUSH29,
"PUSH30": PUSH30,
"PUSH31": PUSH31,
"PUSH32": PUSH32,
"RETURN": RETURN,
}
// returns 0 if not push, otherwise returns number of bytes
func (o *Opcode) IsPush() byte {
d := *o - PUSH1
if d >= 0 && d < 31 {
return byte(d) + 1
}
return 0
}
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