Binary Coded Decimal Values Do Not Get Decoded

[MaxStrange]

Issue summary

When adding a new game that uses binary coded decimal (four bytes) to store its score, I
added this to the appropriate data.json:

{                                  
  "info": { 
    "lives": {
        "address": 16722333,
        "type": "|u1"
    }, 
    "score": {                     
        "address": 16722328,       
        "type": ">b4"              
    },                             
    "wave": {                      
        "address": 16722414,       
        "type": "|u1"              
    }                              
  }                                
}                                  

But when I do an env.step(action), I end up with:

{'lives': 3, 'score': 5456, 'wave': 1}   # The info dict returned from step()

• Lives should be 3 (and is);
• Wave should be 1 (and is);
• Score should be 1550, but is instead the raw BCD value 5456 (i.e. 0x00001550 converted to decimal as if it were not BCD).

System information

• Windows 10
• Python Version: 3.6
• Retro version: 0.5.4
• Genesis

[MaxStrange]

My mistake. Should be "type": ">d4" - I had the wrong letter. With the right letter it works as expected. Derp.