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README.md

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  • main library
    • processor related
      • operand: defines basic operand types used in instructions
      • matcher and decoder: decodes binary instructions into opcodes and operands
      • disassembler: translate binary instructions to (pseudo-)assembly.
      • parser: translate (pseudo-)assembly to binary instructions
      • interpreter: executes instructions
      • register: defines all register states in the processor
      • processor: wrapper of interpreter and register as a processor emulator
      • test_generator: generates test cases information for the instruction set
    • peripherals
      • AHBM: interface for accessing external memory (DSi/3DS main memory)
      • APBP: interface for communication with CPU (ARM in DSi/3DS)
      • BTDMP: audio input/output ports
      • DMA: engine for transferring large data between DSP memory and external memory
      • ICU: interrupt controller unit
      • timer
      • MMIO: I/O ports for all peripherals
      • shared_memory: the DSP working memory
      • memory_interface: the memory space exposed to the processor and related control
  • Tools
    • coff_reader: disassembles and parses symbols COFF files leaked by some DSi applications
    • dsp1_reader: disassembles DSP1 files, DSP binary for 3DS applications
    • makedsp1: assembles DSP1 files
    • test_generator: generate random test cases for processor instructions.
    • mod_test_generator & step2_test_generator: similar to test_generator, but dedicated for mod/step2 related instructions
    • test_verifier: verify test cases on the interpreter against the result generated from 3DS