mirror of
https://github.com/A2osX/A2osX.git
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191 lines
3.9 KiB
Plaintext
191 lines
3.9 KiB
Plaintext
PR#3
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PREFIX /A2OSX.BUILD
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LOMEM $A00
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INC 1
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AUTO 6
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*--------------------------------------
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* TSK.TskMgrRun
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*--------------------------------------
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TSK.TskMgrRun >LDYAI TskMgr.Table+S.PS skip PS 0
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>STYA pPs
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lda TskMgr.Count
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sta TskMgr.Idx
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.1 dec TskMgr.Idx skip PS 0
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beq .8
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lda (pPs) get S.PS.F
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bit #S.PS.F.INUSE In use ?
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beq .7
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bit #S.PS.F.HOLD Waiting for Another Task to Terminate?
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beq .2
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ldy #S.PS.CPID
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lda (pPs),y
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jsr K.GetPSByIDA
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bcc .7 yes, running....
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lda (pPs) get S.PS.F
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and #$FF^S.PS.F.HOLD unmark as HOLD
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sta (pPs)
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.2 jsr PS.Select
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lda (pPS)
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bit #S.PS.F.INIT
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bne .30
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bit #S.PS.F.SLEEP Is this PS sleeping?
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beq .3 no, call TSKMGR.RUN
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jsr TASK.PSWakeUp
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bra .4
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.30 and #$FF^S.PS.F.INIT unmark as INIT
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sta (pPS)
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ldx #TSKMGR.INIT
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.HS 2C BIT abs
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.3 ldx #TSKMGR.RUN
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.31 jsr pCodeJmp Call INIT/RUN function
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.4 bcc .7 INIT/RUN said CS=QUIT?
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pha save RC
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ldy #S.PS.PPID Notify Parent Process for exit code...
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lda (pPs),y
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jsr K.GetPSByIDA will set ZPPtr1 if success
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bcs .5 parent is dead.....skipping...
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lda (ZPPtr1) Parent PS is HOLD?
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and #S.PS.F.HOLD
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beq .5 no...
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pla yes, probably waiting for this PS to terminate....
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ldy #S.PS.RC
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sta (ZPPtr1),y
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.HS B0 BCS
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.5 pla
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.6 ldx #TSKMGR.QUIT yes, quit this process
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jsr pCodeJmp Call QUIT function
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ldy #S.PS.PID
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lda (pPs),y
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jsr PS.FreeA
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.7 lda pPs
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clc
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adc #S.PS
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sta pPs
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bcc .1
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inc pPs+1
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bcs .1 Always
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.8 clc
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rts
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*--------------------------------------
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TASK.PSWakeUp and #$FF^S.PS.F.SLEEP unmark as SLEEP
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sta (pPS)
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ldy #S.PS.PC
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lda (pPs),y
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sec Advance PC by one as it was saved by a JSR
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adc pCode setup by PS.Select
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sta .1+1
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iny
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lda (pPs),y
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adc pCode+1
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sta .1+2
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.1 jmp $FFFF
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*--------------------------------------
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* TSK.DispatchEvents
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* IN:
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* OUT:
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* CS: Not Dispatched
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* CC: Event Cleared
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*--------------------------------------
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TSK.DispatchEvents
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>LDYAI TskMgr.Table+S.PS
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>STYA pPs
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lda TskMgr.Count Number of actual processes...
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sta TskMgr.Idx ...to give event list
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.1 dec TskMgr.Idx skip PS 0
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beq .9
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lda (pPs) get S.PS.F
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bpl .4
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* bit #S.PS.F.INUSE In use ?
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* beq .4
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bit #S.PS.F.INIT+S.PS.F.HOLD Init or Waiting for Another Task to Terminate?
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bne .4
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bit #S.PS.F.EVENT Accept Events ?
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beq .4
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jsr PS.Select
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lda #EvtMgr.Table
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sta pEvent Select first event in list
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lda EVTMGR.COUNT
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sta TSKMGR.EVENTCNT
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.2 lda (pEvent) Empty event, select next
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beq .3
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lda (pCode)
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cmp #H.BIN.HEADER.BIN65
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bne *
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ldx #TSKMGR.DOEVENT
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jsr pCodeJmp Call DOEVENT function
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bcs .3 not for this PS, try next event in list
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jsr EVT.DestroyEvent this PS handled the EVT, destroy it...
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lda EVTMGR.COUNT
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beq .8 no more event, exit
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.3 dec TSKMGR.EVENTCNT
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beq .4 all EVT submitted to this PS, try other PS
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lda pEvent try next EVT to this PS
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clc
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adc #S.EVT
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sta pEvent
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bra .2
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.4 lda pPs go to next PS in PS list
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clc
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adc #S.PS
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sta pPs
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bcc .1
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inc pPs+1
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bne .1 always
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.8 clc
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rts
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.9 sec
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rts
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*--------------------------------------
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TSK.TskMgrQuit clc
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rts
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*--------------------------------------
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TskMgr.Idx .BS 1
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TSKMGR.EVENTCNT .BS 1
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*--------------------------------------
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MAN
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SAVE /A2OSX.SRC/SYS/KERNEL.S.TSK
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LOAD /A2OSX.SRC/SYS/KERNEL.S
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ASM
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