165 lines
3.7 KiB
Go
165 lines
3.7 KiB
Go
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package main
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import (
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"fmt"
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"github.com/ethereum/ethutil-go"
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"math/big"
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)
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type OpCode byte
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// Op codes
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const (
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oSTOP OpCode = 0x00
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oADD OpCode = 0x01
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oMUL OpCode = 0x02
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oSUB OpCode = 0x03
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oDIV OpCode = 0x04
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oSDIV OpCode = 0x05
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oMOD OpCode = 0x06
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oSMOD OpCode = 0x07
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oEXP OpCode = 0x08
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oNEG OpCode = 0x09
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oLT OpCode = 0x0a
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oLE OpCode = 0x0b
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oGT OpCode = 0x0c
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oGE OpCode = 0x0d
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oEQ OpCode = 0x0e
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oNOT OpCode = 0x0f
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oMYADDRESS OpCode = 0x10
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oTXSENDER OpCode = 0x11
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oTXVALUE OpCode = 0x12
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oTXFEE OpCode = 0x13
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oTXDATAN OpCode = 0x14
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oTXDATA OpCode = 0x15
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oBLK_PREVHASH OpCode = 0x16
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oBLK_COINBASE OpCode = 0x17
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oBLK_TIMESTAMP OpCode = 0x18
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oBLK_NUMBER OpCode = 0x19
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oBLK_DIFFICULTY OpCode = 0x1a
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oSHA256 OpCode = 0x20
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oRIPEMD160 OpCode = 0x21
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oECMUL OpCode = 0x22
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oECADD OpCode = 0x23
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oECSIGN OpCode = 0x24
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oECRECOVER OpCode = 0x25
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oECVALID OpCode = 0x26
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oPUSH OpCode = 0x30
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oPOP OpCode = 0x31
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oDUP OpCode = 0x32
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oDUPN OpCode = 0x33
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oSWAP OpCode = 0x34
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oSWAPN OpCode = 0x35
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oLOAD OpCode = 0x36
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oSTORE OpCode = 0x37
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oJMP OpCode = 0x40
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oJMPI OpCode = 0x41
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oIND OpCode = 0x42
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oEXTRO OpCode = 0x50
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oBALANCE OpCode = 0x51
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oMKTX OpCode = 0x60
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oSUICIDE OpCode = 0xff
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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_DIFFIFULTY",
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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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oPUSH: "PUSH",
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oPOP: "POP",
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oDUP: "DUP",
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oDUPN: "DUPN",
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oSWAP: "SWAP",
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oSWAPN: "SWAPN",
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oLOAD: "LOAD",
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oSTORE: "STORE",
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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 []string
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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() string {
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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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strs := st.data[s-2:]
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st.data = st.data[:s-2]
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return ethutil.Big(strs[0]), ethutil.Big(strs[1])
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}
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func (st *Stack) Push(d string) {
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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(st.data)
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}
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