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25 lines
459 B
Plaintext
25 lines
459 B
Plaintext
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;Interrupt Vector Manipulation Routines
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;Interrupt Vectors
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NMILO EQU $FFFA ;Non-Maskable Interrupt
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NMIHI EQU $FFFB
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RSTLO EQU $FFFC ;Reset
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RSTHI EQU $FFFD
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IRQLO EQU $FFFE ;Maskable Interrupt
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IRQHI EQU $FFFF
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;Set Non-Maskable Interrupt Handler
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SETNMI: STY NMIHI
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STX NMILO
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RTS
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;Set Reset Handler
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SETRST: STY RSTHI
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STX RSTLO
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RTS
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;Set Maskable Interrupt Handler
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SETIRQ: STY IRQHI
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STX IRQLO
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RTS
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