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Icon bar: CheckForPause_b0

[NES version, Bank 7]

Name: CheckForPause_b0 [Show more] Type: Subroutine Category: Icon bar Summary: Call the CheckForPause routine in ROM bank 0 Deep dive: Splitting NES Elite across multiple ROM banks
Context: See this subroutine in context in the source code References: This subroutine is called as follows: * CheckSaveLoadBar calls CheckForPause_b0 * DrawScrollFrames calls CheckForPause_b0

Returns: N, Z flags Set according to the value of A passed to the routine
.CheckForPause_b0 STA storeA ; Store the value of A so we can retrieve it below LDA currentBank ; Fetch the number of the ROM bank that is currently PHA ; paged into memory at $8000 and store it on the stack LDA #0 ; Page ROM bank 0 into memory at $8000 JSR SetBank LDA storeA ; Restore the value of A that we stored above JSR CheckForPause ; Call CheckForPause, now that it is paged into memory JMP ResetBankP ; Jump to ResetBankP to retrieve the bank number we ; stored above, page it back into memory and set the ; processor flags according to the value of A, returning ; from the subroutine using a tail call