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Routines |
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Saves the live game to tape. Reached through the special-key table at 8271, dispatched from Command_MatchASpecialKey.
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| SaveGame | 84CC | PUSH IX | Save IX and DE, then call ThreeByteCopy with DE at B6EB and HL at C9E2. | |
| 84CE | PUSH DE | |||
| 84CF | LD DE,$B6EB | |||
| 84D2 | LD HL,$C9E2 | |||
| 84D5 | CALL ThreeByteCopy | |||
| 84D8 | LD A,$01 | Write 01 to WaitCountdown. | ||
| 84DA | LD ($B701),A | |||
| 84DD | LD HL,$B342 | Point at the message "start tape then press any key" (B342). | ||
| 84E0 | CALL PrintMessage | Call PrintMessage to print message. | ||
| 84E3 | CALL DebounceAnyKey | Call DebounceAnyKey to debounce keyboard. | ||
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Save "flags".
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| 84E6 | LD A,$FF | Set the save as a "data block". | ||
| 84E8 | LD IX,$B6EB | Set the start address to B6EB. | ||
| 84EC | LD DE,$001D | Set the block length to 1D bytes. | ||
| 84EF | CALL $04C2 | Call SA_BYTES. | ||
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Save "objects".
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| 84F2 | LD A,$FF | Set the save as a "data block". | ||
| 84F4 | LD IX,$C11B | Set the start address to Objects. | ||
| 84F8 | LD DE,$0615 | Set the block length to 0615 bytes. | ||
| 84FB | CALL $04C2 | Call SA_BYTES. | ||
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Save...
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| 84FE | LD A,$FF | Set the save as a "data block". | ||
| 8500 | LD IX,$CA84 | Set the start address to CA84. | ||
| 8504 | LD DE,$00BF | Set the block length to BF bytes. | ||
| 8507 | CALL $04C2 | Call SA_BYTES. | ||
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Save "locations".
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| 850A | LD A,$FF | Set the save as a "data block". | ||
| 850C | LD IX,$BA8A | Set the start address to Locations. | ||
| 8510 | LD DE,$05D9 | Set the block length to 05D9 bytes. | ||
| 8513 | CALL $04C2 | Call SA_BYTES. | ||
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Begin verification.
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| 8516 | LD HL,$B3A4 | Point HL at B3A4. | ||
| 8519 | CALL PrintMessage | Call PrintMessage to print message. | ||
| 851C | CALL DebounceAnyKey | Call DebounceAnyKey to debounce keyboard. | ||
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Verify "flags".
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| 851F | LD A,$FF | Set the load as a "data block". | ||
| 8521 | AND A | Clear carry so the ROM verifies the flags. | ||
| 8522 | LD IX,$B6EB | Set the start address to B6EB. | ||
| 8526 | LD DE,$001D | Set the block length to 1D bytes. | ||
| 8529 | CALL VerifyBlock | Call VerifyBlock to verify the block. | ||
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Verify "objects".
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| 852C | LD A,$FF | Set the load as a "data block". | ||
| 852E | AND A | Clear carry so the ROM verifies the object table. | ||
| 852F | LD IX,$C11B | Set the start address to Objects. | ||
| 8533 | LD DE,$0615 | Set the block length to 0615 bytes. | ||
| 8536 | CALL VerifyBlock | Call VerifyBlock to verify the block. | ||
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Verify the object handlers.
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| 8539 | LD A,$FF | Set the load as a "data block". | ||
| 853B | AND A | Clear carry so the ROM verifies the object handlers. | ||
| 853C | LD IX,$CA84 | Set the start address to CA84. | ||
| 8540 | LD DE,$00BF | Set the block length to BF bytes. | ||
| 8543 | CALL VerifyBlock | Call VerifyBlock to verify the block. | ||
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Verify "locations".
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| 8546 | LD A,$FF | Set the load as a "data block". | ||
| 8548 | AND A | Clear carry so the ROM verifies the location table. | ||
| 8549 | LD IX,$BA8A | Set the start address to Locations. | ||
| 854D | LD DE,$05D9 | Set the block length to 05D9 bytes. | ||
| 8550 | CALL VerifyBlock | Call VerifyBlock to verify the block. | ||
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This entry point is used by the routine at VerifyBlock.
Success!
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| SaveGame_Done | 8553 | DI | Disable interrupts. | |
| 8554 | POP DE | Jump back to CommandDispatchAControl to dispatch a control. | ||
| 8555 | POP IX | |||
| 8557 | JP CommandDispatchAControl | |||
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