core, core/vm, cmd/disasm: unify procedures for disassembling evm code (#3530)

1 files changed, 0 insertions, 64 deletions

diff --git a/core/asm.go b/core/asm.go
deleted file mode 100644
index b2e47b5e9..000000000
--- a/core/asm.go
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright 2014 The go-ethereum Authors
-// This file is part of the go-ethereum library.
-//
-// The go-ethereum library is free software: you can redistribute it and/or modify
-// it under the terms of the GNU Lesser General Public License as published by
-// the Free Software Foundation, either version 3 of the License, or
-// (at your option) any later version.
-//
-// The go-ethereum library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-// GNU Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
-
-package core
-
-import (
-	"fmt"
-	"math/big"
-
-	"github.com/ethereum/go-ethereum/common"
-	"github.com/ethereum/go-ethereum/core/vm"
-)
-
-func Disassemble(script []byte) (asm []string) {
-	pc := new(big.Int)
-	for {
-		if pc.Cmp(big.NewInt(int64(len(script)))) >= 0 {
-			return
-		}
-
-		// Get the memory location of pc
-		val := script[pc.Int64()]
-		// Get the opcode (it must be an opcode!)
-		op := vm.OpCode(val)
-
-		asm = append(asm, fmt.Sprintf("%04v: %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:
-			pc.Add(pc, common.Big1)
-			a := int64(op) - int64(vm.PUSH1) + 1
-			if int(pc.Int64()+a) > len(script) {
-				return
-			}
-
-			data := script[pc.Int64() : pc.Int64()+a]
-			if len(data) == 0 {
-				data = []byte{0}
-			}
-			asm = append(asm, fmt.Sprintf("%04v: 0x%x", pc, data))
-
-			pc.Add(pc, big.NewInt(a-1))
-		}
-
-		pc.Add(pc, common.Big1)
-	}
-}