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Routines |
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Used by the routines at DescribeLocation and WaitForKey.
Selects RAM bank A at C000 and forces the 48K ROM, which is the ROM this game's calls expect. A is the bank in the low three bits. Callers pass 0, 3 or 6. Bank 7, which the loader paged with OUT 32765,23, is never requested again.
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| PageBank | 66BD | PUSH BC | Save what the caller passed in, since BC is needed for the memory paging port 7FFD. | |
| 66BE | LD BC,$7FFD | |||
| 66C1 | OR $10 | Force the 48K ROM and write the bank in the low three bits. | ||
| 66C3 | OUT (C),A | |||
| 66C5 | POP BC | Restore BC from the stack. | ||
| 66C6 | RET | Return. | ||
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