Md. Zahurul Islam Center for Research on Bangla Language Processing (CRBLP) BRAC University

 Project Details  What to do?  New classes  Changes on previous program  Lvalue and Rvalue  MIPS

 Code Generator ◦ Intel Architecture (X86) ◦ MIPS Architecture ◦ Java Virtual Machine (JVM) ◦ Common Language runtime (CLR)  Our Target: MIPS Architecture  SPIM Simulator

 Download starter-kit  Find out what you have to do  Try to understand our starter-kit  Take a look on our given solution  Read MIPS references ◦ Online references on course website ◦ Computer architecture book  Lets start!

 Codegen.java ◦ Utility class for code generation  MIPSVisitor.java ◦ New visitor class to generate MIPS assembly code

 Symbol class changes ◦ getOffset() ◦ setOffset() ◦ symOffset  FunDeclAst changes ◦ FuncFrameSize ◦ setFrameSize() ◦ getFrameSize()  NameVisitor changes ◦ cuFrameOffset ◦ …

 Load (default)  Store  Manage it carefully

 Prolog  Epilog  Variables  Parameter  Arguments  Return value

 Stack ◦ Push ◦ pop  Registers ◦ Arguments ◦ Frame pointer ◦ Stack pointer ◦ Return address ◦ Return value

 Project Details  What to Do?  New classes  Changes on previous program  Lvalue and Rvalue  MIPS