Implement all opcodes needed for startup code

[wwiv]

Here's the list:

    676 ff
    328 c7
    183 eb
    175 81
    169 6
    168 76
    167 ae
    165 86
    165 84
    164 f7
    164 ea
    164 d1
     21 72
     19 74
     16 80
     14 3b
     13 7
      9 ef
      8 d7
      8 67
      7 d9
      7 aa
      7 38
      6 d3
      6 77
      4 ed
      4 df
      4 c6
      4 c0
      4 73
      4 3a
      3 fb
      3 fa
      3 e3
      3 dc
      3 da
      3 93
      3 92
      3 75
      3 61
      3 37

Generated with:

cat x | cut -c65- | sort | uniq -c | sort -n -r