Pulpino V2: Compiler, Debug support, and more

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Michael Gautschi

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May 26, 2016, 4:34:19 AM5/26/16
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Dear
        RISC-V Community, open source enthusiasts, and others

      

      We
        got a lot of good feedback and interest with the first version
        of Pulpino. Today we are ready to share a major patch to the
        RISC-V toolchain that will allow all extensions in PULPino to be
        used as well many upgrades to the PULPino core itself. Here is
        what is new:

    

    
    
      
  • 
        
    A
            patch to the original RISC-V toolchain that will allow you
            to build the PULP toolchain that supports all extensions we
            have added to the RISC-V core including
    
      
    • 
      
      
        
    • 
          
      Vector
              ALU instructions
      
        
      • 
        
    • 
          
      Hardware
              loops
      
        
      • 
        
    • 
          
      Post
              increment load/store instructions 
      
        
      • 
      
    
      
  • 
        
    Full
            support for the RV32IMC instruction set (now also divisions)
    
      
    • 
      
  • 
        
    New
            DSP extensions that allow operations on 4 bytes or 2
            halfwords in parallel, including:
    
      
    • 
      
      
        
    • 
          
      Dot
              product operations:
      
        
      • 
      
    
    

    
E.g.
        C[31:0] = A[15:0]*B[15:0] +A[31:16]*B[31:16]

    
    
      
  • 
        
    Improved
            Debug support
    
      
    • 
      
      
        
    • 
          
      You
              can debug applications running on the PULPino from Eclipse
              using a GDB interface
      
        
      • 
        
    • 
          
      Memory-mapped-input-output
              (MMIO) debugging
      
        
      • 
      
    
    

    

      

    

      Stay tuned, there is still more to come. More information on the
      current and future releases will be announced on:

    

    www.pulp-platform.org

      https://github.com/pulp-platform/pulpino

      

      best
      regards,

    

    PULP-team

    

-- 
-----------------------------------------------------------------------
Michael Gautschi                     phone:    +41 44 632 99 58
Integrated Systems Laboratory        fax:      +41 44 632 11 94
ETZ J69.2                            e-mail:   gaut...@iis.ee.ethz.ch
Gloriastr. 35                           
ETH Zentrum CH-8092 Zurich
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