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|
package ethchain
import (
"fmt"
"math/big"
)
type OpCode int
// Op codes
const (
oSTOP = 0x00
oADD = 0x01
oMUL = 0x02
oSUB = 0x03
oDIV = 0x04
oSDIV = 0x05
oMOD = 0x06
oSMOD = 0x07
oEXP = 0x08
oNEG = 0x09
oLT = 0x0a
oLE = 0x0b
oGT = 0x0c
oGE = 0x0d
oEQ = 0x0e
oNOT = 0x0f
oMYADDRESS = 0x10
oTXSENDER = 0x11
oTXVALUE = 0x12
oTXDATAN = 0x13
oTXDATA = 0x14
oBLK_PREVHASH = 0x15
oBLK_COINBASE = 0x16
oBLK_TIMESTAMP = 0x17
oBLK_NUMBER = 0x18
oBLK_DIFFICULTY = 0x19
oBLK_NONCE = 0x1a
oBASEFEE = 0x1b
oSHA256 = 0x20
oRIPEMD160 = 0x21
oECMUL = 0x22
oECADD = 0x23
oECSIGN = 0x24
oECRECOVER = 0x25
oECVALID = 0x26
oSHA3 = 0x27
oPUSH = 0x30
oPOP = 0x31
oDUP = 0x32
oSWAP = 0x33
oMLOAD = 0x34
oMSTORE = 0x35
oSLOAD = 0x36
oSSTORE = 0x37
oJMP = 0x38
oJMPI = 0x39
oIND = 0x3a
oEXTRO = 0x3b
oBALANCE = 0x3c
oMKTX = 0x3d
oSUICIDE = 0x3f
)
// Since the opcodes aren't all in order we can't use a regular slice
var opCodeToString = map[OpCode]string{
oSTOP: "STOP",
oADD: "ADD",
oMUL: "MUL",
oSUB: "SUB",
oDIV: "DIV",
oSDIV: "SDIV",
oMOD: "MOD",
oSMOD: "SMOD",
oEXP: "EXP",
oNEG: "NEG",
oLT: "LT",
oLE: "LE",
oGT: "GT",
oGE: "GE",
oEQ: "EQ",
oNOT: "NOT",
oMYADDRESS: "MYADDRESS",
oTXSENDER: "TXSENDER",
oTXVALUE: "TXVALUE",
oTXDATAN: "TXDATAN",
oTXDATA: "TXDATA",
oBLK_PREVHASH: "BLK_PREVHASH",
oBLK_COINBASE: "BLK_COINBASE",
oBLK_TIMESTAMP: "BLK_TIMESTAMP",
oBLK_NUMBER: "BLK_NUMBER",
oBLK_DIFFICULTY: "BLK_DIFFICULTY",
oBASEFEE: "BASEFEE",
oSHA256: "SHA256",
oRIPEMD160: "RIPEMD160",
oECMUL: "ECMUL",
oECADD: "ECADD",
oECSIGN: "ECSIGN",
oECRECOVER: "ECRECOVER",
oECVALID: "ECVALID",
oSHA3: "SHA3",
oPUSH: "PUSH",
oPOP: "POP",
oDUP: "DUP",
oSWAP: "SWAP",
oMLOAD: "MLOAD",
oMSTORE: "MSTORE",
oSLOAD: "SLOAD",
oSSTORE: "SSTORE",
oJMP: "JMP",
oJMPI: "JMPI",
oIND: "IND",
oEXTRO: "EXTRO",
oBALANCE: "BALANCE",
oMKTX: "MKTX",
oSUICIDE: "SUICIDE",
}
func (o OpCode) String() string {
return opCodeToString[o]
}
type OpType int
const (
tNorm = iota
tData
tExtro
tCrypto
)
type TxCallback func(opType OpType) bool
// Simple push/pop stack mechanism
type Stack struct {
data []*big.Int
}
func NewStack() *Stack {
return &Stack{}
}
func (st *Stack) Pop() *big.Int {
s := len(st.data)
str := st.data[s-1]
st.data = st.data[:s-1]
return str
}
func (st *Stack) Popn() (*big.Int, *big.Int) {
s := len(st.data)
ints := st.data[s-2:]
st.data = st.data[:s-2]
return ints[0], ints[1]
}
func (st *Stack) Peek() *big.Int {
s := len(st.data)
str := st.data[s-1]
return str
}
func (st *Stack) Peekn() (*big.Int, *big.Int) {
s := len(st.data)
ints := st.data[s-2:]
return ints[0], ints[1]
}
func (st *Stack) Push(d *big.Int) {
st.data = append(st.data, d)
}
func (st *Stack) Print() {
fmt.Println("### STACK ###")
if len(st.data) > 0 {
for i, val := range st.data {
fmt.Printf("%-3d %v\n", i, val)
}
} else {
fmt.Println("-- empty --")
}
fmt.Println("#############")
}
|
