1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
|
package ethchain
import (
"fmt"
"math/big"
)
type OpCode int
// Op codes
const (
oSTOP OpCode = iota
oADD
oMUL
oSUB
oDIV
oSDIV
oMOD
oSMOD
oEXP
oNEG
oLT
oLE
oGT
oGE
oEQ
oNOT
oMYADDRESS
oTXSENDER
oTXVALUE
oTXFEE
oTXDATAN
oTXDATA
oBLK_PREVHASH
oBLK_COINBASE
oBLK_TIMESTAMP
oBLK_NUMBER
oBLK_DIFFICULTY
oBASEFEE
oSHA256 OpCode = 32
oRIPEMD160 OpCode = 33
oECMUL OpCode = 34
oECADD OpCode = 35
oECSIGN OpCode = 36
oECRECOVER OpCode = 37
oECVALID OpCode = 38
oSHA3 OpCode = 39
oPUSH OpCode = 48
oPOP OpCode = 49
oDUP OpCode = 50
oSWAP OpCode = 51
oMLOAD OpCode = 52
oMSTORE OpCode = 53
oSLOAD OpCode = 54
oSSTORE OpCode = 55
oJMP OpCode = 56
oJMPI OpCode = 57
oIND OpCode = 58
oEXTRO OpCode = 59
oBALANCE OpCode = 60
oMKTX OpCode = 61
oSUICIDE OpCode = 62
)
// 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",
oTXFEE: "TXFEE",
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("#############")
}
|
