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Utility routines: SetNonZeroBank

[NES version, Bank 7]

Name: SetNonZeroBank [Show more] Type: Subroutine Category: Utility routines Summary: An unused routine that pages a specified ROM bank into memory at $8000, but only if it is non-zero Deep dive: Splitting NES Elite across multiple ROM banks
Context: See this subroutine in context in the source code References: No direct references to this subroutine in this source file

Arguments: A The number of the ROM bank to page into memory at $8000
.SetNonZeroBank CMP currentBank ; If the ROM bank number in A is non-zero, jump to BNE SetBank ; SetBank to page bank A into memory, returning from the ; subroutine using a tail call RTS ; Otherwise return from the subroutine