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cc65/libsrc/pce/irq.s
Oliver Schmidt 419eb700b5 Renamed INITBSS to INIT and INIT to ONCE.
The way we want to use the INITBSS segment - and especially the fact that it won't have the type bss on all ROM based targets - means that the name INITBSS is misleading. After all INIT is the best name from my perspective as it serves several purposes and therefore needs a rather generic name.

Unfortunately this means that the current INIT segment needs to be renamed too. Looking for a short (ideally 4 letter) name I came up with ONCE as it contains all code (and data) accessed only once during initialization.
2016-03-06 21:27:19 +01:00

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856 B
ArmAsm

;
; IRQ handling (PCE version)
;
.export initirq, doneirq, IRQStub
.import __INTERRUPTOR_COUNT__, callirq_y
.include "pce.inc"
.include "extzp.inc"
; ------------------------------------------------------------------------
.segment "ONCE"
; a constructor
;
initirq:
rts
; ------------------------------------------------------------------------
.code
; a destructor
;
doneirq:
rts
; ------------------------------------------------------------------------
IRQStub:
phy
; Save the display-source flags (and, release the interrupt).
;
ldy a:VDC_CTRL
sty vdc_flags
ldy #<(__INTERRUPTOR_COUNT__ * 2)
beq @L1
phx
pha
jsr callirq_y
pla
plx
@L1: ply
rti