To use HUMBUG on a 68010, 68012, or 68020 system, please make the
following changes:

1. Change
       DC.L UNASSI                 "
       DC.L FORERR                 FORMAT ERROR ON 68010
       DC.L UNASSI                 UNASSIGNED
   to
       DC.L FORERR                 FORMAT ERROR ON 68010/20
       DC.L UNASSI                 UNASSIGNED
       DC.L UNASSI                 "

2. For a 68020 only, just after WARMST MOVE.L .... insert
          EOR.W #$1000,SR          FLIP TO OTHER SSR
          MOVE.L #MSTACK-6,A7      SET OTHER STACK POINTER TOO
          EOR.W #$1000,SR          RETURN TO ORIG SSR

3. Change
          MOVE.L #MSTACK-6,A7      RESET STACK
to
          MOVE.L #MSTACK-8,A7      RESET STACK

4. Change
          MOVE #$0700,(A7)         SET SR
          MOVE #USTACK-4,A6
          MOVE A6,USP              SET USER STACK REGISTER
to
          MOVE.W #$0700,(A7)       SET SR
          MOVE.L #USTACK-4,A6
          MOVE.L A6,USP            SET USER STACK REGISTER
          CLR.W 6(A7)              CLEAR 68010/20 FORMAT CODE

5. For the 68020 only, change
SRLETR    FCC 'T?S?????XNZVC'
to
SRLETR    FCC 'TTSM????XNZVC'

6. Change
          SUB.L #6,A7              BUT STEP BACK 6 TO MAKE ROOM
to
          SUB.L #8,A7              BUT STEP BACK 8 TO MAKE ROOM
          CLR.W 6(A7)              CLEAR 68010/20 FORMAT

7. Change
          SUB.L #6,A7              BUT STEP BACK 6 TO MAKE ROOM
to
          SUB.L #8,A7              BUT STEP BACK 8 TO MAKE ROOM
          CLR.W 6(A7)              CLEAR 68010/20 FORMAT
