public VectorSTL<OpTpl> createOpConst(Location location, OpCode opc, long val) {
		entry("createOpConst", location, opc, val);
		VarnodeTpl vn = new VarnodeTpl(location, new ConstTpl(getConstantSpace()),
			new ConstTpl(ConstTpl.const_type.real, val), new ConstTpl(ConstTpl.const_type.real, 4));
		VectorSTL<OpTpl> res = new VectorSTL<OpTpl>();
		OpTpl op = new OpTpl(location, opc);
		op.addInput(vn);
		res.push_back(op);
		return res;
	}
Handle a sleigh 'macro' invocation, returning the resulting p-code op templates (OpTpl)

@param location is the file/line where the macro is invoked
@param sym MacroSymbol is the macro symbol
@param param is the parsed list of operand expressions
@return a list of p-code op templates
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/pcodeCPort/slgh_compile/PcodeCompile.java