0368 715C A6 FC GO LDX SP 0369 715E 9A TXS ; ORIG OR NEW SP VALUE TO SP 0370 715F A5 F7 LDA PCH 0371 7161 48 PHA 0372 7162 A5 F6 LDA PCL 0373 7164 48 PHA 0374 7165 A5 F8 LDA FLGS 0375 7167 48 PHA 0376 7168 A5 F9 LDA ACC 0377 716A A6 FA LDX XR 0378 716C A4 FB LDY YR 0379 716E 40 RTI
What is happening here?
The registers are loaded from the zeropage save locations, where they were stored by the interrupt (BRK/IRQ).
In the right order for RTI to jump to the Program counter on the stack.
See also:
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