Assignment #1 Extend the hand-written compiler discussed in the tutorial so that it can translate code segments generated by the following grammar: stmt → id := expr | if expr then stmt | while expr do stmt | begin opt_stmts end opt_stmts → stmt_list |є stmt_list → stmt_list; stmt | stmt Also, modify the grammar for handling expressions so that it can handle relational operators (=, <, ) as well as arithmetic operators (+, -, *, /). Try to generate x85 / x86 assembly as the translated code. Before doing the above assignment, draw an expression tree for the expression: a + b * c + 4
