Routines
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40576: Save Game
Used by the routines at Action_SaveGame and Action_OfferSave.
SaveGame 40576 PUSH IX Stash IX, HL, DE and BC on the stack.
40578 PUSH HL
40579 PUSH DE
40580 PUSH BC
40581 LD A,(48081) A=*Count_SavedStateBytes.
Skip packing the save when there are no state bytes.
40584 OR A Jump to SaveGame_PrintSaving if there are no saved state bytes.
40585 JR Z,SaveGame_PrintSaving
40587 LD B,A Set B to the number of state bytes to pack.
40588 LD IX,47865 IX=Table_SavedStateAddresses.
40592 LD DE,41172 DE=SavedStateBytes.
40595 JR SaveGame_StoreFlag Jump to SaveGame_StoreFlag.
The next saved address.
SaveGame_Copy 40597 INC IX Move IX on to the next saved-state address.
40599 INC IX
40601 INC DE Move DE on to the next packed state byte.
SaveGame_StoreFlag 40602 LD L,(IX+0) Fetch the state address from *IX into HL.
40605 LD H,(IX+1)
40608 LD A,(HL) Copy the state byte into the packed save buffer.
40609 LD (DE),A
40610 DJNZ SaveGame_Copy Decrease the pack counter and loop back to SaveGame_Copy until every state byte is packed.
Print "Press REC & PLAY on tape... Then press any key.".
SaveGame_PrintSaving 40612 LD HL,40499 HL=Messaging_Saving.
40615 CALL PrintStringAndNewline Call PrintStringAndNewline.
40618 CALL GetUserInput Call GetUserInput.
40621 LD IX,40840 IX=Table_ItemLocations.
40625 LD DE,385 Set the block length in DE to 385 bytes.
40628 LD A,255 Set A to 255 which indicates this is a data block.
40630 CALL 1218 Call SA_BYTES.
Print "Saving Complete...Stop Tape.".
40633 LD HL,40547 HL=Messaging_StopTapeSavingComplete.
40636 CALL PrintStringAndNewline Call PrintStringAndNewline.
40639 POP BC Restore BC, DE, HL and IX from the stack.
40640 POP DE
40641 POP HL
40642 POP IX
40644 RET Return.
View the equivalent code in;
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