git ssb

1
const codes = {
2
  // 0x0 range - arithmetic ops
3
  // name, baseCost, off stack, on stack, dynamic
4
  0x00: ['STOP', 0, 0, 0, false],
5
  0x01: ['ADD', 3, 2, 1, false],
6
  0x02: ['MUL', 5, 2, 1, false],
7
  0x03: ['SUB', 3, 2, 1, false],
8
  0x04: ['DIV', 5, 2, 1, false],
9
  0x05: ['SDIV', 5, 2, 1, false],
10
  0x06: ['MOD', 5, 2, 1, false],
11
  0x07: ['SMOD', 5, 2, 1, false],
12
  0x08: ['ADDMOD', 8, 3, 1, false],
13
  0x09: ['MULMOD', 8, 3, 1, false],
14
  0x0a: ['EXP', 10, 2, 1, false],
15
  0x0b: ['SIGNEXTEND', 5, 1, 1, false],
16
17
  // 0x10 range - bit ops
18
  0x10: ['LT', 3, 2, 1, false],
19
  0x11: ['GT', 3, 2, 1, false],
20
  0x12: ['SLT', 3, 2, 1, false],
21
  0x13: ['SGT', 3, 2, 1, false],
22
  0x14: ['EQ', 3, 2, 1, false],
23
  0x15: ['ISZERO', 3, 1, 1, false],
24
  0x16: ['AND', 3, 2, 1, false],
25
  0x17: ['OR', 3, 2, 1, false],
26
  0x18: ['XOR', 3, 2, 1, false],
27
  0x19: ['NOT', 3, 1, 1, false],
28
  0x1a: ['BYTE', 3, 2, 1, false],
29
30
  // 0x20 range - crypto
31
  0x20: ['SHA3', 30, 2, 1, false],
32
33
  // 0x30 range - closure state
34
  0x30: ['ADDRESS', 2, 0, 1, true],
35
  0x31: ['BALANCE', 20, 1, 1, true],
36
  0x32: ['ORIGIN', 2, 0, 1, true],
37
  0x33: ['CALLER', 2, 0, 1, true],
38
  0x34: ['CALLVALUE', 2, 0, 1, true],
39
  0x35: ['CALLDATALOAD', 3, 1, 1, true],
40
  0x36: ['CALLDATASIZE', 2, 0, 1, true],
41
  0x37: ['CALLDATACOPY', 3, 3, 0, true],
42
  0x38: ['CODESIZE', 2, 0, 1, false],
43
  0x39: ['CODECOPY', 3, 3, 0, false],
44
  0x3a: ['GASPRICE', 2, 0, 1, false],
45
  0x3b: ['EXTCODESIZE', 20, 1, 1, true],
46
  0x3c: ['EXTCODECOPY', 20, 4, 0, true],
47
48
  // '0x40' range - block operations
49
  0x40: ['BLOCKHASH', 20, 1, 1, true],
50
  0x41: ['COINBASE', 2, 0, 1, true],
51
  0x42: ['TIMESTAMP', 2, 0, 1, true],
52
  0x43: ['NUMBER', 2, 0, 1, true],
53
  0x44: ['DIFFICULTY', 2, 0, 1, true],
54
  0x45: ['GASLIMIT', 2, 0, 1, true],
55
56
  // 0x50 range - 'storage' and execution
57
  0x50: ['POP', 2, 1, 0, false],
58
  0x51: ['MLOAD', 3, 1, 1, false],
59
  0x52: ['MSTORE', 3, 2, 0, false],
60
  0x53: ['MSTORE8', 3, 2, 0, false],
61
  0x54: ['SLOAD', 0, 1, 1, true],
62
  0x55: ['SSTORE', 0, 2, 0, true],
63
  0x56: ['JUMP', 8, 1, 0, false],
64
  0x57: ['JUMPI', 10, 2, 0, false],
65
  0x58: ['PC', 2, 0, 1, false],
66
  0x59: ['MSIZE', 2, 0, 1, false],
67
  0x5a: ['GAS', 2, 0, 1, false],
68
  0x5b: ['JUMPDEST', 1, 0, 0, false],
69
70
  // 0x60, range
71
  0x60: ['PUSH', 3, 0, 1, false],
72
  0x61: ['PUSH', 3, 0, 1, false],
73
  0x62: ['PUSH', 3, 0, 1, false],
74
  0x63: ['PUSH', 3, 0, 1, false],
75
  0x64: ['PUSH', 3, 0, 1, false],
76
  0x65: ['PUSH', 3, 0, 1, false],
77
  0x66: ['PUSH', 3, 0, 1, false],
78
  0x67: ['PUSH', 3, 0, 1, false],
79
  0x68: ['PUSH', 3, 0, 1, false],
80
  0x69: ['PUSH', 3, 0, 1, false],
81
  0x6a: ['PUSH', 3, 0, 1, false],
82
  0x6b: ['PUSH', 3, 0, 1, false],
83
  0x6c: ['PUSH', 3, 0, 1, false],
84
  0x6d: ['PUSH', 3, 0, 1, false],
85
  0x6e: ['PUSH', 3, 0, 1, false],
86
  0x6f: ['PUSH', 3, 0, 1, false],
87
  0x70: ['PUSH', 3, 0, 1, false],
88
  0x71: ['PUSH', 3, 0, 1, false],
89
  0x72: ['PUSH', 3, 0, 1, false],
90
  0x73: ['PUSH', 3, 0, 1, false],
91
  0x74: ['PUSH', 3, 0, 1, false],
92
  0x75: ['PUSH', 3, 0, 1, false],
93
  0x76: ['PUSH', 3, 0, 1, false],
94
  0x77: ['PUSH', 3, 0, 1, false],
95
  0x78: ['PUSH', 3, 0, 1, false],
96
  0x79: ['PUSH', 3, 0, 1, false],
97
  0x7a: ['PUSH', 3, 0, 1, false],
98
  0x7b: ['PUSH', 3, 0, 1, false],
99
  0x7c: ['PUSH', 3, 0, 1, false],
100
  0x7d: ['PUSH', 3, 0, 1, false],
101
  0x7e: ['PUSH', 3, 0, 1, false],
102
  0x7f: ['PUSH', 3, 0, 1, false],
103
104
  0x80: ['DUP', 3, 0, 1, false],
105
  0x81: ['DUP', 3, 0, 1, false],
106
  0x82: ['DUP', 3, 0, 1, false],
107
  0x83: ['DUP', 3, 0, 1, false],
108
  0x84: ['DUP', 3, 0, 1, false],
109
  0x85: ['DUP', 3, 0, 1, false],
110
  0x86: ['DUP', 3, 0, 1, false],
111
  0x87: ['DUP', 3, 0, 1, false],
112
  0x88: ['DUP', 3, 0, 1, false],
113
  0x89: ['DUP', 3, 0, 1, false],
114
  0x8a: ['DUP', 3, 0, 1, false],
115
  0x8b: ['DUP', 3, 0, 1, false],
116
  0x8c: ['DUP', 3, 0, 1, false],
117
  0x8d: ['DUP', 3, 0, 1, false],
118
  0x8e: ['DUP', 3, 0, 1, false],
119
  0x8f: ['DUP', 3, 0, 1, false],
120
121
  0x90: ['SWAP', 3, 0, 0, false],
122
  0x91: ['SWAP', 3, 0, 0, false],
123
  0x92: ['SWAP', 3, 0, 0, false],
124
  0x93: ['SWAP', 3, 0, 0, false],
125
  0x94: ['SWAP', 3, 0, 0, false],
126
  0x95: ['SWAP', 3, 0, 0, false],
127
  0x96: ['SWAP', 3, 0, 0, false],
128
  0x97: ['SWAP', 3, 0, 0, false],
129
  0x98: ['SWAP', 3, 0, 0, false],
130
  0x99: ['SWAP', 3, 0, 0, false],
131
  0x9a: ['SWAP', 3, 0, 0, false],
132
  0x9b: ['SWAP', 3, 0, 0, false],
133
  0x9c: ['SWAP', 3, 0, 0, false],
134
  0x9d: ['SWAP', 3, 0, 0, false],
135
  0x9e: ['SWAP', 3, 0, 0, false],
136
  0x9f: ['SWAP', 3, 0, 0, false],
137
138
  0xa0: ['LOG', 375, 2, 0, false],
139
  0xa1: ['LOG', 375, 3, 0, false],
140
  0xa2: ['LOG', 375, 4, 0, false],
141
  0xa3: ['LOG', 375, 5, 0, false],
142
  0xa4: ['LOG', 375, 6, 0, false],
143
144
  // '0xf0' range - closures
145
  0xf0: ['CREATE', 32000, 3, 1, true],
146
  0xf1: ['CALL', 40, 7, 1, true],
147
  0xf2: ['CALLCODE', 40, 7, 1, true],
148
  0xf3: ['RETURN', 0, 2, 0, false],
149
  0xf4: ['DELEGATECALL', 40, 6, 1, true],
150
151
  // '0x70', range - other
152
  0xff: ['SUICIDE', 0, 1, 0, false]
153
}
154
155
module.exports = function (op) {
156
  const code = codes[op] ? codes[op] : ['INVALID', 0]
157
  let opcode = code[0]
158
  let number
159
160
  switch (opcode) {
161
    case 'LOG':
162
      number = op - 0xa0
163
      break
164
165
    case 'PUSH':
166
      number = op - 0x5f
167
      break
168
169
    case 'DUP':
170
      number = op - 0x7f
171
      break
172
173
    case 'SWAP':
174
      number = op - 0x8f
175
      break
176
  }
177
178
  return {
179
    name: opcode,
180
    fee: code[1],
181
    in: code[2],
182
    out: code[3],
183
    dynamic: code[4],
184
    async: code[5],
185
    number: number
186
  }
187
}
188