1 	OpAddr = 0x03,	// 1 op, const addr
2 	OpDeref = 0x06,
3 	OpConst1u = 0x08,	// 1 op, 1 byte const
4 	OpConst1s = 0x09,	//	" signed
5 	OpConst2u = 0x0A	// 1 op, 2 byte const 
6 	OpConst2s = 0x0B,	//	" signed
7 	OpConst4u = 0x0C,	// 1 op, 4 byte const
8 	OpConst4s = 0x0D,	//	" signed
9 	OpConst8u = 0x0E,	// 1 op, 8 byte const
10 	OpConst8s = 0x0F,	//	" signed
11 	OpConstu = 0x10,	// 1 op, LEB128 const
12 	OpConsts = 0x11,	//	" signed
13 	OpDup = 0x12,
14 	OpDrop = 0x13,
15 	OpOver = 0x14,
16 	OpPick = 0x15,		// 1 op, 1 byte stack index
17 	OpSwap = 0x16,
18 	OpRot = 0x17,
19 	OpXderef = 0x18,
20 	OpAbs = 0x19,
21 	OpAnd = 0x1A,
22 	OpDiv = 0x1B,
23 	OpMinus = 0x1C,
24 	OpMod = 0x1D,
25 	OpMul = 0x1E,
26 	OpNeg = 0x1F,
27 	OpNot = 0x20,
28 	OpOr = 0x21,
29 	OpPlus = 0x22,
30 	OpPlusUconst = 0x23,	// 1 op, ULEB128 addend
31 	OpShl = 0x24,
32 	OpShr = 0x25,
33 	OpShra = 0x26,
34 	OpXor = 0x27,
35 	OpSkip = 0x2F,		// 1 op, signed 2-byte constant
36 	OpBra = 0x28,		// 1 op, signed 2-byte constant
37 	OpEq = 0x29,
38 	OpGe = 0x2A,
39 	OpGt = 0x2B,
40 	OpLe = 0x2C,
41 	OpLt = 0x2D,
42 	OpNe = 0x2E,
43 	OpLit0 = 0x30,
44 		// OpLitN = OpLit0 + N for N = 0..31
45 	OpReg0 = 0x50,
46 		// OpRegN = OpReg0 + N for N = 0..31
47 	OpBreg0 = 0x70,	// 1 op, signed LEB128 constant
48 		// OpBregN = OpBreg0 + N for N = 0..31
49 	OpRegx = 0x90,	// 1 op, ULEB128 register
50 	OpFbreg = 0x91,	// 1 op, SLEB128 offset
51 	OpBregx = 0x92,	// 2 op, ULEB128 reg, SLEB128 off
52 	OpPiece = 0x93,	// 1 op, ULEB128 size of piece
53 	OpDerefSize = 0x94,	// 1-byte size of data retrieved
54 	OpXderefSize = 0x95,	// 1-byte size of data retrieved
55 	OpNop = 0x96,
56 	// next four new in Dwarf v3
57 	OpPushObjAddr = 0x97,
58 	OpCall2 = 0x98,	// 2-byte offset of DIE
59 	OpCall4 = 0x99,	// 4-byte offset of DIE
60 	OpCallRef = 0x9A,	// 4- or 8- byte offset of DIE
61 	// 0xE0-0xFF reserved for user-specific
62