OpAddr = 0x03,	// 1 op, const addr
	OpDeref = 0x06,
	OpConst1u = 0x08,	// 1 op, 1 byte const
	OpConst1s = 0x09,	//	" signed
	OpConst2u = 0x0A	// 1 op, 2 byte const 
	OpConst2s = 0x0B,	//	" signed
	OpConst4u = 0x0C,	// 1 op, 4 byte const
	OpConst4s = 0x0D,	//	" signed
	OpConst8u = 0x0E,	// 1 op, 8 byte const
	OpConst8s = 0x0F,	//	" signed
	OpConstu = 0x10,	// 1 op, LEB128 const
	OpConsts = 0x11,	//	" signed
	OpDup = 0x12,
	OpDrop = 0x13,
	OpOver = 0x14,
	OpPick = 0x15,		// 1 op, 1 byte stack index
	OpSwap = 0x16,
	OpRot = 0x17,
	OpXderef = 0x18,
	OpAbs = 0x19,
	OpAnd = 0x1A,
	OpDiv = 0x1B,
	OpMinus = 0x1C,
	OpMod = 0x1D,
	OpMul = 0x1E,
	OpNeg = 0x1F,
	OpNot = 0x20,
	OpOr = 0x21,
	OpPlus = 0x22,
	OpPlusUconst = 0x23,	// 1 op, ULEB128 addend
	OpShl = 0x24,
	OpShr = 0x25,
	OpShra = 0x26,
	OpXor = 0x27,
	OpSkip = 0x2F,		// 1 op, signed 2-byte constant
	OpBra = 0x28,		// 1 op, signed 2-byte constant
	OpEq = 0x29,
	OpGe = 0x2A,
	OpGt = 0x2B,
	OpLe = 0x2C,
	OpLt = 0x2D,
	OpNe = 0x2E,
	OpLit0 = 0x30,
		// OpLitN = OpLit0 + N for N = 0..31
	OpReg0 = 0x50,
		// OpRegN = OpReg0 + N for N = 0..31
	OpBreg0 = 0x70,	// 1 op, signed LEB128 constant
		// OpBregN = OpBreg0 + N for N = 0..31
	OpRegx = 0x90,	// 1 op, ULEB128 register
	OpFbreg = 0x91,	// 1 op, SLEB128 offset
	OpBregx = 0x92,	// 2 op, ULEB128 reg, SLEB128 off
	OpPiece = 0x93,	// 1 op, ULEB128 size of piece
	OpDerefSize = 0x94,	// 1-byte size of data retrieved
	OpXderefSize = 0x95,	// 1-byte size of data retrieved
	OpNop = 0x96,
	// next four new in Dwarf v3
	OpPushObjAddr = 0x97,
	OpCall2 = 0x98,	// 2-byte offset of DIE
	OpCall4 = 0x99,	// 4-byte offset of DIE
	OpCallRef = 0x9A,	// 4- or 8- byte offset of DIE
	// 0xE0-0xFF reserved for user-specific