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Routines |
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Looks a direction id up at A20E plus twice the id. The words run from NORTH to DOWN. Bit 7 of the id is ignored.
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| ExitsTheDirectionWord | A0BA | LD HL,$A20E | Point at the token-address table at A20E. | |
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This entry point is used by the routine at Message_NameFromThisRecord.
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| ExitsTheDirectionWord_0 | A0BD | LD E,A | Clear bit 7 of the token id. | |
| A0BE | RES 7,E | |||
| A0C0 | LD D,$00 | The direction-word offset's high byte is zero. | ||
| A0C2 | ADD HL,DE | Add the token id. | ||
| A0C3 | ADD HL,DE | Add the token id again. Each entry in A20E is one word. | ||
| A0C4 | LD E,(HL) | Read the low byte of A20E. | ||
| A0C5 | INC HL | Step to the high byte of the direction token. | ||
| A0C6 | LD D,(HL) | Read the high byte of the direction token at A20E plus twice the direction id. | ||
| A0C7 | RET | Return. | ||
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View the equivalent code in;
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| Prev: A0AE | Up: Map | Next: A0C8 |