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Routines |
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Used by command list 0x50. Makes the teacher stand still until the period is nearly over, and also perform assembly duty (if the teacher is MR WITHIT).
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| F0DA | LD A,($7FE4) | Collect the MSB of the lesson clock (which starts off at 0x10) | ||||||
| F0DD | CP $02 | Has the teacher been standing still long enough (the routine at F250 sets the MSB of the lesson clock to 1 after MR WACKER has finished his detention speech)? | ||||||
| F0DF | JP C,$638C | Move to the next command in the command list if so | ||||||
| F0E2 | CP $0B | Is it time for the kids to sit down for assembly yet? | ||||||
| F0E4 | RET NC | Return if not | ||||||
| F0E5 | LD A,H | A=teacher's character number | ||||||
| F0E6 | CP $C9 | Is this MR WITHIT (who does assembly duty)? | ||||||
| F0E8 | RET NZ | Return if not | ||||||
| F0E9 | LD DE,$7F80 | Set bits 6 (ERIC should be here now) and 7 (time to sit down: this is checked by command lists 0x14, 0x28 and 0x58) at 7F80 | ||||||
| F0EC | LD A,(DE) | |||||||
| F0ED | OR $C0 | |||||||
| F0EF | LD (DE),A | |||||||
| F0F0 | LD A,($7FE4) | A=MSB of the lesson clock | ||||||
| F0F3 | CP $0A | Is it time to find ERIC if he's absent? | ||||||
| F0F5 | RET NC | Return if not | ||||||
| F0F6 | CALL $7D15 | Is ERIC in the assembly hall? | ||||||
| F0F9 | RET Z | Return if so | ||||||
| F0FA | JP $F0D0 | Go and find him otherwise | ||||||
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