package main import ( "fmt" "io/ioutil" "os" "github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/core/vm" ) func main() { code, err := ioutil.ReadAll(os.Stdin) if err != nil { fmt.Println(err) os.Exit(1) } code = common.Hex2Bytes(string(code[:len(code)-1])) fmt.Printf("%x\n", code) for pc := uint64(0); pc < uint64(len(code)); pc++ { op := vm.OpCode(code[pc]) fmt.Printf("%-5d %v", pc, op) switch op { case vm.PUSH1, vm.PUSH2, vm.PUSH3, vm.PUSH4, vm.PUSH5, vm.PUSH6, vm.PUSH7, vm.PUSH8, vm.PUSH9, vm.PUSH10, vm.PUSH11, vm.PUSH12, vm.PUSH13, vm.PUSH14, vm.PUSH15, vm.PUSH16, vm.PUSH17, vm.PUSH18, vm.PUSH19, vm.PUSH20, vm.PUSH21, vm.PUSH22, vm.PUSH23, vm.PUSH24, vm.PUSH25, vm.PUSH26, vm.PUSH27, vm.PUSH28, vm.PUSH29, vm.PUSH30, vm.PUSH31, vm.PUSH32: a := uint64(op) - uint64(vm.PUSH1) + 1 fmt.Printf(" => %x", code[pc+1:pc+1+a]) pc += a } fmt.Println() } }