| The Hobbit (v1.0) | Routines |
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Sets $B609 to 1 (ALL in force) unless ALL EXCEPT is already in force.
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| 808A | LD A,($B609) | Is ALL EXCEPT already in force? | ||
| 808D | CP $02 | |||
| 808F | JP Z,$7C7E | Yes: a second ALL changes nothing - just carry on | ||
| 8092 | LD A,$01 | No: switch plain ALL on | ||
| 8094 | LD ($B609),A | |||
| 8097 | JP $7C7E | Go back to reading the next word | ||
| Prev: 8072 | Up: Map | Next: 809A |