A2osX/SYS/KERNEL.S.EVT.txt

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PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
*--------------------------------------
* EVT.GetEvents :
* IN :
* OUT :
* CS = no event, A = ERROR
* CC * event in YA
* (pEvent)
*--------------------------------------
EVT.GetEvents stz pEvent point to start of event list
stz EVTMGR.COUNT reset Size
lda VBL get VLINE status
tax
eor EVTMGR.VBLSTATE
bpl EVT.GetEvents.DEV no change,no tick
txa
sta EVTMGR.VBLSTATE save new
bpl EVT.GetEvents.DEV Up2down transition,no tick
* sta PDLTRIG clr VBL (IIc)
* lda RDIOUDIS clr VBL (IIc)
inc A2osX.TIMER16
bne .1
inc A2osX.TIMER16+1
.1 dec EVTMGR.HZ.CNT
bne EVT.GetEvents.DEV not yet 100ms
ldx A2osX.HZ
stx EVTMGR.HZ.CNT
lda #S.EVT.F.T10TH
dec EVTMGR.10TH.CNT
bne .2
ldx #10
stx EVTMGR.10TH.CNT
ora #S.EVT.F.T1SEC
.2 sta (pEvent)
jsr EVT.GetEvents.Add
*--------------------------------------
EVT.GetEvents.DEV
>LDYAI DevMgr.Table
>STYA pDev
stz EvtMgr.DevID
.1 ldy #S.DEV.F
lda (pDev),y get S.DEV.F
bit #S.DEV.F.EVENT
beq .2 EVENT enabled ?
lda (pDev)
cmp #H.BIN.HEADER.DRV65
bne *
ldx #DEVMGR.GETEVENT
jsr pDevJmp Call DRV GetEvent function
bcs .2 no event
ldy #S.EVT.hDEV
lda EvtMgr.DevID
sta (pEvent),y
jsr EVT.GetEvents.Add
bcs .8 Event Q is full, exit now with CC
.2 lda pDev
clc
adc #S.DEV
sta pDev
bcc .3
inc pDev+1
.3 lda EvtMgr.DevID
inc EvtMgr.DevID
cmp DevMgr.LastDevID
bne .1
lda EVTMGR.COUNT if 0, exit with CS (from cmp), and A=0 "no event"
beq .9
.8 clc
.9 rts
*--------------------------------------
EVT.GetEvents.Add
inc EVTMGR.COUNT Add one event to Queue
lda pEvent
clc
adc #S.EVT
sta pEvent
rts if CS, EVT queue full!!! ($100)
*--------------------------------------
EVT.DestroyEvent
lda (pEvent)
beq .9
bit #S.EVT.F.hMEM1
beq .1
pha
ldy #S.EVT.DATALO
lda (pEvent),y
jsr K.FreeMemA
pla
.1 bit #S.EVT.F.hMEM2
beq .2
ldy #S.EVT.DATAHI
lda (pEvent),y
jsr K.FreeMemA
.2 lda #0
sta (pEvent)
dec EVTMGR.COUNT
.9 rts
*--------------------------------------
EVTMGR.VBLSTATE .BS 1
EVTMGR.10TH.CNT .BS 1
EVTMGR.HZ.CNT .BS 1
EVTMGR.COUNT .BS 1
EvtMgr.DevID .BS 1
*--------------------------------------
MAN
SAVE SYS/KERNEL.S.EVT
LOAD SYS/KERNEL.S
ASM