Moved ethvm => vm

vm/types.go

@@ -0,0 +1,314 @@
+package vm
+
+import (
+	"fmt"
+)
+
+type OpCode byte
+
+// Op codes
+const (
+	// 0x0 range - arithmetic ops
+	STOP = 0x00
+	ADD  = 0x01
+	MUL  = 0x02
+	SUB  = 0x03
+	DIV  = 0x04
+	SDIV = 0x05
+	MOD  = 0x06
+	SMOD = 0x07
+	EXP  = 0x08
+	NEG  = 0x09
+	LT   = 0x0a
+	GT   = 0x0b
+	SLT  = 0x0c
+	SGT  = 0x0d
+	EQ   = 0x0e
+	NOT  = 0x0f
+
+	// 0x10 range - bit ops
+	AND    = 0x10
+	OR     = 0x11
+	XOR    = 0x12
+	BYTE   = 0x13
+	ADDMOD = 0x14
+	MULMOD = 0x15
+
+	// 0x20 range - crypto
+	SHA3 = 0x20
+
+	// 0x30 range - closure state
+	ADDRESS      = 0x30
+	BALANCE      = 0x31
+	ORIGIN       = 0x32
+	CALLER       = 0x33
+	CALLVALUE    = 0x34
+	CALLDATALOAD = 0x35
+	CALLDATASIZE = 0x36
+	CALLDATACOPY = 0x37
+	CODESIZE     = 0x38
+	CODECOPY     = 0x39
+	GASPRICE     = 0x3a
+	EXTCODESIZE  = 0x3b
+	EXTCODECOPY  = 0x3c
+
+	// 0x40 range - block operations
+	PREVHASH   = 0x40
+	COINBASE   = 0x41
+	TIMESTAMP  = 0x42
+	NUMBER     = 0x43
+	DIFFICULTY = 0x44
+	GASLIMIT   = 0x45
+
+	// 0x50 range - 'storage' and execution
+	POP = 0x50
+	//DUP     = 0x51
+	//SWAP    = 0x52
+	MLOAD    = 0x53
+	MSTORE   = 0x54
+	MSTORE8  = 0x55
+	SLOAD    = 0x56
+	SSTORE   = 0x57
+	JUMP     = 0x58
+	JUMPI    = 0x59
+	PC       = 0x5a
+	MSIZE    = 0x5b
+	GAS      = 0x5c
+	JUMPDEST = 0x5d
+
+	// 0x60 range
+	PUSH1  = 0x60
+	PUSH2  = 0x61
+	PUSH3  = 0x62
+	PUSH4  = 0x63
+	PUSH5  = 0x64
+	PUSH6  = 0x65
+	PUSH7  = 0x66
+	PUSH8  = 0x67
+	PUSH9  = 0x68
+	PUSH10 = 0x69
+	PUSH11 = 0x6a
+	PUSH12 = 0x6b
+	PUSH13 = 0x6c
+	PUSH14 = 0x6d
+	PUSH15 = 0x6e
+	PUSH16 = 0x6f
+	PUSH17 = 0x70
+	PUSH18 = 0x71
+	PUSH19 = 0x72
+	PUSH20 = 0x73
+	PUSH21 = 0x74
+	PUSH22 = 0x75
+	PUSH23 = 0x76
+	PUSH24 = 0x77
+	PUSH25 = 0x78
+	PUSH26 = 0x79
+	PUSH27 = 0x7a
+	PUSH28 = 0x7b
+	PUSH29 = 0x7c
+	PUSH30 = 0x7d
+	PUSH31 = 0x7e
+	PUSH32 = 0x7f
+
+	DUP1  = 0x80
+	DUP2  = 0x81
+	DUP3  = 0x82
+	DUP4  = 0x83
+	DUP5  = 0x84
+	DUP6  = 0x85
+	DUP7  = 0x86
+	DUP8  = 0x87
+	DUP9  = 0x88
+	DUP10 = 0x89
+	DUP11 = 0x8a
+	DUP12 = 0x8b
+	DUP13 = 0x8c
+	DUP14 = 0x8d
+	DUP15 = 0x8e
+	DUP16 = 0x8f
+
+	SWAP1  = 0x90
+	SWAP2  = 0x91
+	SWAP3  = 0x92
+	SWAP4  = 0x93
+	SWAP5  = 0x94
+	SWAP6  = 0x95
+	SWAP7  = 0x96
+	SWAP8  = 0x97
+	SWAP9  = 0x98
+	SWAP10 = 0x99
+	SWAP11 = 0x9a
+	SWAP12 = 0x9b
+	SWAP13 = 0x9c
+	SWAP14 = 0x9d
+	SWAP15 = 0x9e
+	SWAP16 = 0x9f
+
+	// 0xf0 range - closures
+	CREATE   = 0xf0
+	CALL     = 0xf1
+	RETURN   = 0xf2
+	CALLCODE = 0xf3
+
+	// 0x70 range - other
+	LOG     = 0xfe // XXX Unofficial
+	SUICIDE = 0xff
+)
+
+// Since the opcodes aren't all in order we can't use a regular slice
+var opCodeToString = map[OpCode]string{
+	// 0x0 range - arithmetic ops
+	STOP: "STOP",
+	ADD:  "ADD",
+	MUL:  "MUL",
+	SUB:  "SUB",
+	DIV:  "DIV",
+	SDIV: "SDIV",
+	MOD:  "MOD",
+	SMOD: "SMOD",
+	EXP:  "EXP",
+	NEG:  "NEG",
+	LT:   "LT",
+	GT:   "GT",
+	SLT:  "SLT",
+	SGT:  "SGT",
+	EQ:   "EQ",
+	NOT:  "NOT",
+
+	// 0x10 range - bit ops
+	AND:    "AND",
+	OR:     "OR",
+	XOR:    "XOR",
+	BYTE:   "BYTE",
+	ADDMOD: "ADDMOD",
+	MULMOD: "MULMOD",
+
+	// 0x20 range - crypto
+	SHA3: "SHA3",
+
+	// 0x30 range - closure state
+	ADDRESS:      "ADDRESS",
+	BALANCE:      "BALANCE",
+	ORIGIN:       "ORIGIN",
+	CALLER:       "CALLER",
+	CALLVALUE:    "CALLVALUE",
+	CALLDATALOAD: "CALLDATALOAD",
+	CALLDATASIZE: "CALLDATASIZE",
+	CALLDATACOPY: "CALLDATACOPY",
+	CODESIZE:     "CODESIZE",
+	CODECOPY:     "CODECOPY",
+	GASPRICE:     "TXGASPRICE",
+
+	// 0x40 range - block operations
+	PREVHASH:    "PREVHASH",
+	COINBASE:    "COINBASE",
+	TIMESTAMP:   "TIMESTAMP",
+	NUMBER:      "NUMBER",
+	DIFFICULTY:  "DIFFICULTY",
+	GASLIMIT:    "GASLIMIT",
+	EXTCODESIZE: "EXTCODESIZE",
+	EXTCODECOPY: "EXTCODECOPY",
+
+	// 0x50 range - 'storage' and execution
+	POP: "POP",
+	//DUP:     "DUP",
+	//SWAP:    "SWAP",
+	MLOAD:    "MLOAD",
+	MSTORE:   "MSTORE",
+	MSTORE8:  "MSTORE8",
+	SLOAD:    "SLOAD",
+	SSTORE:   "SSTORE",
+	JUMP:     "JUMP",
+	JUMPI:    "JUMPI",
+	PC:       "PC",
+	MSIZE:    "MSIZE",
+	GAS:      "GAS",
+	JUMPDEST: "JUMPDEST",
+
+	// 0x60 range - push
+	PUSH1:  "PUSH1",
+	PUSH2:  "PUSH2",
+	PUSH3:  "PUSH3",
+	PUSH4:  "PUSH4",
+	PUSH5:  "PUSH5",
+	PUSH6:  "PUSH6",
+	PUSH7:  "PUSH7",
+	PUSH8:  "PUSH8",
+	PUSH9:  "PUSH9",
+	PUSH10: "PUSH10",
+	PUSH11: "PUSH11",
+	PUSH12: "PUSH12",
+	PUSH13: "PUSH13",
+	PUSH14: "PUSH14",
+	PUSH15: "PUSH15",
+	PUSH16: "PUSH16",
+	PUSH17: "PUSH17",
+	PUSH18: "PUSH18",
+	PUSH19: "PUSH19",
+	PUSH20: "PUSH20",
+	PUSH21: "PUSH21",
+	PUSH22: "PUSH22",
+	PUSH23: "PUSH23",
+	PUSH24: "PUSH24",
+	PUSH25: "PUSH25",
+	PUSH26: "PUSH26",
+	PUSH27: "PUSH27",
+	PUSH28: "PUSH28",
+	PUSH29: "PUSH29",
+	PUSH30: "PUSH30",
+	PUSH31: "PUSH31",
+	PUSH32: "PUSH32",
+
+	DUP1:  "DUP1",
+	DUP2:  "DUP2",
+	DUP3:  "DUP3",
+	DUP4:  "DUP4",
+	DUP5:  "DUP5",
+	DUP6:  "DUP6",
+	DUP7:  "DUP7",
+	DUP8:  "DUP8",
+	DUP9:  "DUP9",
+	DUP10: "DUP10",
+	DUP11: "DUP11",
+	DUP12: "DUP12",
+	DUP13: "DUP13",
+	DUP14: "DUP14",
+	DUP15: "DUP15",
+	DUP16: "DUP16",
+
+	SWAP1:  "SWAP1",
+	SWAP2:  "SWAP2",
+	SWAP3:  "SWAP3",
+	SWAP4:  "SWAP4",
+	SWAP5:  "SWAP5",
+	SWAP6:  "SWAP6",
+	SWAP7:  "SWAP7",
+	SWAP8:  "SWAP8",
+	SWAP9:  "SWAP9",
+	SWAP10: "SWAP10",
+	SWAP11: "SWAP11",
+	SWAP12: "SWAP12",
+	SWAP13: "SWAP13",
+	SWAP14: "SWAP14",
+	SWAP15: "SWAP15",
+	SWAP16: "SWAP16",
+
+	// 0xf0 range
+	CREATE:   "CREATE",
+	CALL:     "CALL",
+	RETURN:   "RETURN",
+	CALLCODE: "CALLCODE",
+
+	// 0x70 range - other
+	LOG:     "LOG",
+	SUICIDE: "SUICIDE",
+}
+
+func (o OpCode) String() string {
+	str := opCodeToString[o]
+	if len(str) == 0 {
+		return fmt.Sprintf("Missing opcode 0x%x", int(o))
+	}
+
+	return str
+}