4.16.4 TC-7 Code to Write

There is not much code to write:

• − Codegen (src/target/mips/call.brg, src/target/mips/move.brg): complete some rules in the grammar of the code generator produced by MonoBURG.
• − SpimAssembly::move_build (src/target/mips/spim-assembly.cc): build a move instruction using MIPS R2000 standard instruction set.
• − SpimAssembly::binop_inst, SpimAssembly::binop_build (src/target/mips/spim-assembly.cc): build arithmetic binary operations (addition, multiplication, etc.) using MIPS R2000 standard instruction set.
• − SpimAssembly::load_build, SpimAssembly::store_build (src/target/mips/spim-assembly.cc): build a load (respectively a store) instruction using MIPS R2000 standard instruction set. Here, the indirect addressing mode is used.
• − SpimAssembly::cjump_build (src/target/mips/spim-assembly.cc): translate conditional branch instructions (branch if equal, if lower than, etc.) into MIPS R2000 assembly.
• − You have to complete the implementation of the runtime in src/target/mips/runtime.s:

  strcmp

  streq

  print_int

  substring

  concat

Information on MIPS R2000 assembly instructions may be found in SPIM manual.

Completing the following routines will be needed during register allocation only (see TC-9):

• − Codegen::rewrite_program (src/target/mips/epilogue.cc)