.SCAN_b1 LDA currentBank ; If ROM bank 1 is already paged into memory, jump to CMP #1 ; bank28 BEQ bank28 PHA ; Otherwise store the current bank number on the stack LDA #1 ; Page ROM bank 1 into memory at $8000 JSR SetBank JSR SCAN ; Call SCAN, now that it is paged into memory JMP ResetBank ; Fetch the previous ROM bank number from the stack and ; page that bank back into memory at $8000, returning ; from the subroutine using a tail call .bank28 JMP SCAN ; Call SCAN, which is already paged into memory, and ; return from the subroutine using a tail callName: SCAN_b1 [Show more] Type: Subroutine Category: Dashboard Summary: Call the SCAN routine in ROM bank 1 Deep dive: Splitting NES Elite across multiple ROM banksContext: See this subroutine in context in the source code References: This subroutine is called as follows: * MVEIT (Part 9 of 9) calls SCAN_b1
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Subroutine ResetBank (category: Utility routines)
Retrieve a ROM bank number from the stack and page that bank into memory at $8000
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Subroutine SCAN (category: Dashboard)
Display the current ship on the scanner
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Subroutine SetBank (category: Utility routines)
Page a specified ROM bank into memory at $8000
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Label bank28 is local to this routine
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Variable currentBank in workspace ZP
Contains the number of the ROM bank (0 to 6) that is currently paged into memory at $8000