information， and programming.Project DescriptionIn this assignment you will complete a variation of projects 10 and 11 in the nand2tetris course， reworkeddescriptions of Nand2Tetris Projects 10 and 11 are shown below. In particular， you will write thefollowing programs that are used to implement different components of an optimising Jack compiler thatcompiles a Jack class into Hack Virtual Machine (VM) code:parser - this parses a Jack program and constructs an abstract syntax tree.codegen - this takes an abstract syntax tree and outputs equivalent VM code.pretty - this takes an abstract syntax tree and produces a carefully formatted Jack program.optimiser-e* - this copies an abstract syntax tree and pre-evaluates expressions where possible.optimiser-r^ - this copies an abstract syntax tree and removes redundant code.SVN RepositoryYou must create a directory in your svn repository named: //cs/assignment3. Thisdirectory may only contain the following files and sub-directories - the web submission system(https://cs.adelaide.edu.au/services/websubmission) will check this:Makefile - this file is used by make to compile your submission - do not modify this file..cpp C++ source files - naming as specified below..h C++ include files - naming as specified below.lib - this directory contains precompiled programs and components - do not modify this directory.includes - this directory contains .h files for precompiled classes - do not modify this directory.tests - this directory contains a test script and test data， you can add your own tests too.parser - your implementation of the parser program.codegen - a script to run your codegen program.pretty - a script to run your pretty program.optimiser-e - a script to run your optimiser-e program*.optimiser-r - a script to run your optimiser-r program^.Notes:09/10/2019 Assignment 3 Description: Computer Systems (2000_7081 Combined)http://www.9daixie.comhttps://myuni.adelaide.edu.au/courses/44936/pages/assignment-3-description 2/5if the lib/*/lib.a files do not get added to your svn repository you will need explicitly add them andmake another commit:% svn add lib/*/lib.a % svn commit -m adding-missing-librariesif the real executable programs are added to your svn repository you will need to explicitly removethem and make another commit:% svn rm lib/*/parser lib/*/codegen lib/*/pretty lib/*/optimiser-e lib/*/optimiser-r% svn commit -m removing-executablesNotes:*Only for students enrolled in the undergraduate offering， COMP SCI 2000.^Only for students enrolled in the postgraduate offering， COMP SCI 7081.
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