19 lines
295 B
ArmAsm
19 lines
295 B
ArmAsm
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nmi_handler:
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sei ;; don't allow IRQ to interfere, see https://www.c64-wiki.com/wiki/Interrupt
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;; Call interrupt routine (only if initialised)
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pha
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lda NMINV
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ora NMINV+1
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beq +
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pla
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jmp (NMINV)
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*
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;; Vector not initialized - call default interrupt routine
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pla
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jmp default_nmi_handler
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