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cc65/libsrc/atari7800/irq.s
2022-04-16 18:16:14 +02:00

37 lines
713 B
ArmAsm

;
; IRQ handling (Atari 7800 version)
;
.export initirq, doneirq, IRQStub
.import __INTERRUPTOR_COUNT__, callirq
.include "atari7800.inc"
.code
; ------------------------------------------------------------------------
initirq:
doneirq:
rts
; ------------------------------------------------------------------------
IRQStub:
cld ; Just to be sure
pha
lda #<(__INTERRUPTOR_COUNT__ * 2)
beq @L1
txa
pha
tya
pha
jsr callirq ; Call the functions
pla
tay
pla
tax
@L1: pla
rti