Write an HDL module (either SystemVerilog, Verilog, or VHDL) for a 4-bit UP/DOWN Gray Code counter. Hint: Consult Exercise 3.28 of your textbook. b) Write a testbench for the module you wrote in (a), using the same HDL coding, that will to functionally verify the code

Consider the usual algorithm to convert an infix expression to a postfix expression. suppose that you have read 10 input characters during a conversion and that the stack now contains these symbols: (5 points) | | | + | | ( | bottom |_*_| now, suppose that you read and process the 11th symbol of the input. draw the stack for the case where the 11th symbol is