.export _init, nmi_int, irq_int .autoimport .import _init_interrupt_controller .zeropage finish: .res 1 .code nmi_int: irq_int: lda #$6d sta $00 _init: ldx #$ff txs LDA #<(__STACKSTART__ + __STACKSIZE__) STA sp LDA #>(__STACKSTART__ + __STACKSIZE__) STA sp+1 ; enable interrupt 0 lda #$00 jsr pusha lda #$1 jsr _enable_irq cli @end: bra @end