192 lines
3.4 KiB
Go
192 lines
3.4 KiB
Go
package ethchain
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import (
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"fmt"
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"math/big"
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)
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type OpCode int
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// Op codes
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const (
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oSTOP OpCode = iota
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oADD
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oMUL
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oSUB
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oDIV
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oSDIV
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oMOD
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oSMOD
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oEXP
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oNEG
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oLT
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oLE
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oGT
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oGE
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oEQ
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oNOT
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oMYADDRESS
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oTXSENDER
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oTXVALUE
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oTXFEE
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oTXDATAN
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oTXDATA
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oBLK_PREVHASH
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oBLK_COINBASE
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oBLK_TIMESTAMP
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oBLK_NUMBER
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oBLK_DIFFICULTY
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oBASEFEE
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oSHA256 OpCode = 32
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oRIPEMD160 OpCode = 33
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oECMUL OpCode = 34
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oECADD OpCode = 35
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oECSIGN OpCode = 36
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oECRECOVER OpCode = 37
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oECVALID OpCode = 38
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oSHA3 OpCode = 39
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oPUSH OpCode = 48
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oPOP OpCode = 49
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oDUP OpCode = 50
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oSWAP OpCode = 51
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oMLOAD OpCode = 52
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oMSTORE OpCode = 53
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oSLOAD OpCode = 54
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oSSTORE OpCode = 55
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oJMP OpCode = 56
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oJMPI OpCode = 57
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oIND OpCode = 58
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oEXTRO OpCode = 59
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oBALANCE OpCode = 60
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oMKTX OpCode = 61
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oSUICIDE OpCode = 62
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)
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// Since the opcodes aren't all in order we can't use a regular slice
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var opCodeToString = map[OpCode]string{
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oSTOP: "STOP",
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oADD: "ADD",
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oMUL: "MUL",
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oSUB: "SUB",
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oDIV: "DIV",
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oSDIV: "SDIV",
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oMOD: "MOD",
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oSMOD: "SMOD",
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oEXP: "EXP",
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oNEG: "NEG",
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oLT: "LT",
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oLE: "LE",
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oGT: "GT",
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oGE: "GE",
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oEQ: "EQ",
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oNOT: "NOT",
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oMYADDRESS: "MYADDRESS",
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oTXSENDER: "TXSENDER",
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oTXVALUE: "TXVALUE",
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oTXFEE: "TXFEE",
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oTXDATAN: "TXDATAN",
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oTXDATA: "TXDATA",
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oBLK_PREVHASH: "BLK_PREVHASH",
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oBLK_COINBASE: "BLK_COINBASE",
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oBLK_TIMESTAMP: "BLK_TIMESTAMP",
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oBLK_NUMBER: "BLK_NUMBER",
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oBLK_DIFFICULTY: "BLK_DIFFICULTY",
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oBASEFEE: "BASEFEE",
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oSHA256: "SHA256",
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oRIPEMD160: "RIPEMD160",
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oECMUL: "ECMUL",
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oECADD: "ECADD",
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oECSIGN: "ECSIGN",
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oECRECOVER: "ECRECOVER",
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oECVALID: "ECVALID",
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oSHA3: "SHA3",
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oPUSH: "PUSH",
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oPOP: "POP",
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oDUP: "DUP",
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oSWAP: "SWAP",
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oMLOAD: "MLOAD",
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oMSTORE: "MSTORE",
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oSLOAD: "SLOAD",
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oSSTORE: "SSTORE",
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oJMP: "JMP",
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oJMPI: "JMPI",
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oIND: "IND",
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oEXTRO: "EXTRO",
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oBALANCE: "BALANCE",
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oMKTX: "MKTX",
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oSUICIDE: "SUICIDE",
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}
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func (o OpCode) String() string {
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return opCodeToString[o]
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}
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type OpType int
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const (
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tNorm = iota
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tData
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tExtro
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tCrypto
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)
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type TxCallback func(opType OpType) bool
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// Simple push/pop stack mechanism
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type Stack struct {
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data []*big.Int
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}
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func NewStack() *Stack {
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return &Stack{}
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}
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func (st *Stack) Pop() *big.Int {
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s := len(st.data)
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str := st.data[s-1]
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st.data = st.data[:s-1]
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return str
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}
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func (st *Stack) Popn() (*big.Int, *big.Int) {
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s := len(st.data)
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ints := st.data[s-2:]
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st.data = st.data[:s-2]
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return ints[0], ints[1]
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}
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func (st *Stack) Peek() *big.Int {
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s := len(st.data)
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str := st.data[s-1]
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return str
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}
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func (st *Stack) Peekn() (*big.Int, *big.Int) {
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s := len(st.data)
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ints := st.data[s-2:]
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return ints[0], ints[1]
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}
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func (st *Stack) Push(d *big.Int) {
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st.data = append(st.data, d)
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}
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func (st *Stack) Print() {
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fmt.Println("### STACK ###")
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if len(st.data) > 0 {
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for i, val := range st.data {
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fmt.Printf("%-3d %v\n", i, val)
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}
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} else {
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fmt.Println("-- empty --")
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}
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fmt.Println("#############")
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}
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