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141 lines
2.7 KiB
Plaintext
141 lines
2.7 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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LOMEM $A00
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INC 1
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AUTO 6
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*--------------------------------------
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* EVT.GetEvents :
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* IN :
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* OUT :
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* CS = no event, A = ERROR
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* CC * event in YA
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* (pEvent)
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*--------------------------------------
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EVT.GetEvents lda #EvtMgr.Table
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sta pEvent point to start of event list
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stz EvtMgr.Count reset Size
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lda K.IrkMgr.VBL do we have IRQ enabled for VBL ?
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bpl .10 no, regular poll
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lda K.IrkMgr.VBLINT
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beq EVT.GetEvents.DEV no
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dec K.IrkMgr.VBLINT
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bra .11
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.10 lda VBL get VLINE status
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tax
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eor EvtMgr.VBLState
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bpl EVT.GetEvents.DEV no change,no tick
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txa
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sta EvtMgr.VBLState save new
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bpl EVT.GetEvents.DEV Up2down transition,no tick
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.11 inc A2osX.TIMER16
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bne .1
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inc A2osX.TIMER16+1
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.1 dec EvtMgr.HZ.CNT
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bne EVT.GetEvents.DEV not yet 100ms
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ldx A2osX.HZ
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stx EvtMgr.HZ.CNT
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lda #S.EVT.F.T10TH
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dec EvtMgr.10TH.CNT
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bne .2
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ldx #10
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stx EvtMgr.10TH.CNT
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ora #S.EVT.F.T1SEC
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.2 sta (pEvent)
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jsr EVT.GetEvents.Add
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*--------------------------------------
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EVT.GetEvents.DEV
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* >LDYAI DevMgr.Table
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* >STYA pDev
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* stz EvtMgr.Idx
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*.1 ldy #S.DEV.F
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* lda (pDev),y get S.DEV.F
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* bit #S.DEV.F.EVENT
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* beq .2 EVENT enabled ?
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* ldx #DEVMGR.GETEVENT
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* jsr pDevJmp Call DRV GetEvent function
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* bcs .2 no event
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* ldy #S.EVT.hDEV
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* lda EvtMgr.Idx
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* sta (pEvent),y
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* jsr EVT.GetEvents.Add
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* bcs .8 Event Q is full, exit now with CC
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*.2 lda pDev
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* clc
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* adc #S.DEV
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* sta pDev
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* bcc .3
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* inc pDev+1
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*
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*.3 lda EvtMgr.Idx
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* inc EvtMgr.Idx
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* cmp DevMgr.Count
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* bne .1
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sec
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lda EvtMgr.Count if 0, exit with CS (from cmp), and A=0 "no event"
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beq .9
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.8 clc
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.9 rts
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*--------------------------------------
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EVT.GetEvents.Add
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inc EvtMgr.Count Add one event to Queue
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lda pEvent
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clc
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adc #S.EVT
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sta pEvent
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rts if CS, EVT queue full!!! ($100)
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*--------------------------------------
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EVT.DestroyEvent
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lda (pEvent)
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beq .9
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bit #S.EVT.F.hMEM1
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beq .1
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pha
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ldy #S.EVT.DATALO
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lda (pEvent),y
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jsr K.FreeMemA
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pla
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.1 bit #S.EVT.F.hMEM2
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beq .2
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ldy #S.EVT.DATAHI
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lda (pEvent),y
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jsr K.FreeMemA
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.2 lda #0
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sta (pEvent)
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dec EvtMgr.Count
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.9 rts
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*--------------------------------------
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EvtMgr.Idx .BS 1
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*--------------------------------------
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MAN
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SAVE SYS/KERNEL.S.EVT
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LOAD SYS/KERNEL.S
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ASM
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