mirror of
https://github.com/A2osX/A2osX.git
synced 2024-06-12 20:29:41 +00:00
587 lines
11 KiB
Plaintext
587 lines
11 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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.OP 65C02
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*--------------------------------------
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* S.TskMgrInit
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*--------------------------------------
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S.TskMgrInit stz TSKMGR.LASTID
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lda #1
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sta TSKMGR.SIZE One Slot Busy (Kernel PS=0)
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>LDYAI TskMgr.Table Make PS #0 as current process
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>STYA pPs
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ldx #K.PS.MAX
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.1 lda #0
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ldy #S.PS.SIZE-1
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.2 sta (pPs),y
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dey
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bpl .2
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lda pPs
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clc
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adc #S.PS.SIZE
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sta pPs
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bcc .3
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inc pPs+1
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.3 dex
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bne .1
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>LDYAI TskMgr.Table Make PS #0 as current process
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>STYA pPs
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jsr S.CreateEnv
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bcs *
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ldy #S.PS.hENV
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sta TskMgr.Table,y
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>LDYAI TmpBuffer256
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jsr S.MLIGetPrefixYA
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bcs *
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>LDYAI TmpBuffer256
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jsr S.NewPStrYA
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bcs *
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ldy #S.PS.hPREFIX
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sta TskMgr.Table,y
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>PUSHWI TmpBuffer256 push ENV value
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>PUSHWI ENV.A2osX push ENV name
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ldy #S.PS.hENV
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lda TskMgr.Table,y
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>PUSHA
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jsr S.SetEnvVarP
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rts
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.9 sec
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rts
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*--------------------------------------
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* S.TskMgrRun
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*--------------------------------------
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S.TskMgrRun >LDYAI TskMgr.Table+S.PS.SIZE
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>STYA pPs
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lda #1 Skip PS #0
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sta TSKMGR.COUNT
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.1 lda (pPs) get S.PS.F
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and #S.PS.F.INUSE In use ?
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beq .5
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lda (pPs) get S.PS.F
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and #S.PS.F.HOLD Waiting for Another Task to Terminate?
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beq .2
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ldy #S.PS.CID
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lda (pPs),y
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jsr S.GetPSByIDA
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bcc .5 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 S.SelectProcess
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ldy #S.PS.PC+1 Is this PS sleeping?
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lda (pPs),y
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tax
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dey
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ora (pPs),y
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beq .3 no, call TSKMGR.RUN
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lda (pPs),y
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clc
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adc pCode
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sta S.TskMgrRunJmp+1
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txa
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adc pCode+1
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sta S.TskMgrRunJmp+2
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lda #0 Don't forget to reset S.PC
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ldy #S.PS.PC
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sta (pPs),y
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iny
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sta (pPs),y
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jsr S.TskMgrRunJmp
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bra .4
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.3 ldx #TSKMGR.RUN
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jsr pCodeJmp Call RUN function
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.4 bcc .5 RUN said CS=QUIT?
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ldx #TSKMGR.QUIT yes, quit this process
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jsr pCodeJmp Call QUIT function
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ldy #S.PS.ID
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lda (pPs),y
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jsr S.FreeProcessA
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bcs .99
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.5 lda pPs
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clc
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adc #S.PS.SIZE
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sta pPs
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bcc .6
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inc pPs+1
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.6 lda TSKMGR.COUNT
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inc TSKMGR.COUNT
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cmp TSKMGR.SIZE
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bne .1
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clc
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rts
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.99 bra *
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*--------------------------------------
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S.TskMgrRunJmp jmp $FFFF
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*--------------------------------------
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* S.DispatchEvent
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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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S.DispatchEvent >LDYAI TskMgr.Table+S.PS.SIZE
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>STYA pPs
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lda #1
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sta TSKMGR.COUNT
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.1 lda (pPs) get S.PS.F
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and #S.PS.F.INUSE In use ?
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beq .3
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lda (pPs) get S.PS.F
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and #S.PS.F.HOLD Waiting for Another Task to Terminate?
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bne .3
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lda (pPs) get S.PS.F
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and #S.PS.F.EVENT Accept Events ?
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beq .3
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jsr S.SelectProcess
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ldx #TSKMGR.DOEVENT
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jsr pCodeJmp Call DOEVENT function
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bcc .8
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.3 lda pPs
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clc
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adc #S.PS.SIZE
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sta pPs
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bcc .4
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inc pPs+1
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.4 lda TSKMGR.COUNT
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inc TSKMGR.COUNT
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cmp TSKMGR.SIZE
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bne .1
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sec
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rts
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.8 jsr S.DestroyEvent
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clc
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rts
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*--------------------------------------
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* S.TskMgrQuit
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*--------------------------------------
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S.TskMgrQuit clc
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rts
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*--------------------------------------
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* PUBLIC
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*--------------------------------------
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* S.ExecProcessA (Blocking Parent PID)
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* in :
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* A = hMem To Cmd Line
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* out :
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* A = Child PSID
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*--------------------------------------
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S.ExecProcessA jsr S.CreateProcessA
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bcs .9 terminated, do not set PID as HOLD
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ldy #S.PS.CID
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sta (pPs),y
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pha Save Child PID
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lda (pPs)
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ora #S.PS.F.HOLD
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sta (pPs)
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pla Get Back PID
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clc
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.9 rts
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*--------------------------------------
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* S.CreateProcessA (Non Blocking)
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* in :
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* A = hMem To Full Cmd Line
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* out :
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* A = Child PSID
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*--------------------------------------
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S.CreateProcessA
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sta S.CreateProcessA.Cmd
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>LDYAI MSG.NEWPS
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jsr S.SysScrPPSTRYA
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jsr S.CreateChildProcess
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bcs .99
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sta S.CreateProcessA.CPSID
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jsr S.SelectProcessA
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lda S.CreateProcessA.Cmd
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jsr S.InitProcessA
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bcs .98 Init Failed or exit?
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ldy #S.PS.PID switch back to Parent Process
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lda (pPs),y
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jsr S.SelectProcessA
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lda S.CreateProcessA.CPSID
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clc
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rts
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.98 pha save error code
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ldy #S.PS.PID switch back to Parent Process
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lda (pPs),y
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jsr S.SelectProcessA
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lda S.CreateProcessA.CPSID
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jsr S.FreeProcessA
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pla get back error code
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.99 sec
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rts
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*--------------------------------------
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S.CreateProcessA.Cmd .BS 1
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S.CreateProcessA.CPSID .BS 1
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*--------------------------------------
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* S.GetPSByIDA
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* In :
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* A = PID
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* Out :
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* Y,A = PTR to TSKSLOT
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*--------------------------------------
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S.GetPSByIDA sta S.GetPSByIDA.PS
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>LDYAI TskMgr.Table
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>STYA ZPQuickPtr1
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lda S.GetPSByIDA.PS
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beq .8
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ldx #0
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.1 inx
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lda ZPQuickPtr1
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clc
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adc #S.PS.SIZE
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sta ZPQuickPtr1
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bcc .2
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inc ZPQuickPtr1+1
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.2 lda (ZPQuickPtr1)
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bpl .3
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ldy #S.PS.ID
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lda (ZPQuickPtr1),y
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cmp S.GetPSByIDA.PS
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beq .8
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.3 cpx TSKMGR.SIZE
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bne .1
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.9 lda #TSKMGR.ERRNSP
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sec
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rts
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.8 >LDYA ZPQuickPtr1
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clc
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rts
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*--------------------------------------
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S.GetPSByIDA.PS .BS 1
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*--------------------------------------
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* PRIVATE
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*--------------------------------------
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* S.CreateChildProcess
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* in :
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* out :
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* A = PSID
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* we cannot use ZPQuickPtrs
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* because of calling S.PStrCpyA & S.DupEnvA
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*--------------------------------------
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S.CreateChildProcess
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>LDYAI TskMgr.Table+S.PS.SIZE
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>STYA R.AX
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ldx #0
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.1 inx
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cpx TSKMGR.SIZE
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beq .2
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lda (R.AX) Found an empty slot
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bpl .3
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lda R.AL
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clc
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adc #S.PS.SIZE
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sta R.AL
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bcc .1
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inc R.AH
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bra .1
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.2 cpx #K.PS.MAX
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bne .30
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lda #TSKMGR.ERROOH
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sec
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rts
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.30 inc TSKMGR.SIZE
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.3 lda #S.PS.F.INUSE
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sta (R.AX)
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.4 inc TSKMGR.LASTID Get a PSID not alredy running
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beq .4 not = 0
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lda TSKMGR.LASTID
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jsr S.GetPSByIDA
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bcc .4
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ldy #S.PS.ID
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lda TSKMGR.LASTID
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sta (R.AX),y
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lda #0
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ldy #S.PS.hCS
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.5 sta (R.AX),y Blank Everything in this S.PS
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iny
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cpy #S.PS.SIZE
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bne .5
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ldy #S.PS.hPREFIX copy hPREFIX...
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lda (pPs),y
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jsr S.PStrCpyA
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bcs .99
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ldy #S.PS.hPREFIX
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sta (R.AX),y
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ldy #S.PS.hENV ...and hENV from parent PS
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lda (pPs),y
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jsr S.DupEnvA
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bcs .99
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ldy #S.PS.hENV
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sta (R.AX),y
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ldy #S.PS.hINDEV
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lda (pPs),y
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sta (R.AX),y
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ldy #S.PS.hOUTDEV
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lda (pPs),y
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sta (R.AX),y
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ldy #S.PS.hERRDEV
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lda (pPs),y
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sta (R.AX),y
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ldy #S.PS.ID
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lda (pPs),y
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ldy #S.PS.PID
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sta (R.AX),y
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ldy #S.PS.ID
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lda (R.AX),y
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clc Exit with A=PSID
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rts
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.99 sec
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rts
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*--------------------------------------
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* S.InitProcessA
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* In :
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* A = hMem To Full Cmd Line
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*--------------------------------------
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S.InitProcessA >PUSHA Push Cmd Line
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>PUSHBI $20 Push SEP=' '
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>PUSHBI 0 Push 0 for getting CMD And ARGS
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jsr S.PStrGetTkn
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bcc .10
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rts OOM error
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.10 ldy #S.PS.hCMD
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sta (pPs),y
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>PUSHA push CMD for S.FileSearch
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txa
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ldy #S.PS.hARGS
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sta (pPs),y set ARGS hMem (0 if none)
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>PUSHWI ENV.PATH push ENVNAME=PATH
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ldy #S.PS.hENV
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lda (pPs),y
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>PUSHA
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jsr S.GetEnvVarP get value for ENV=PATH
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bcs .99
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sta S.InitProcessA.PATH save VALUE hMem for discard
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>PUSHA A=PStr to ENV Value
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jsr S.FileSearch find File in %PATH%
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bcs .98
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sta S.InitProcessA.FULLPATH save FULLPATH hMem for discard
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pha
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jsr S.SysScrPPSTRA
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pla
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jsr S.LoadBinA A = BinPath hMem
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bcs .97
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>STYA pCode save PTR to Code Segment
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txa
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ldy #S.PS.hCS
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sta (pPs),y save CS hMem in TSKSLOT
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ldy #H.BIN.BIN.DS.SIZE+1
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lda (pCode),y Load DS.SIZE HI
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tax
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dey
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ora (pCode),y
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beq .1 DS.SIZE=0...
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lda (pCode),y
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>PUSHAX Push DS.SIZE
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>PUSHBI 0 no option
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jsr S.GetMem
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bcs .97
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>STYA pData
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txa
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ldy #S.PS.hDS
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sta (pPs),y save DS hMem in TSKSLOT
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.1 ldx #TSKMGR.INIT
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jsr pCodeJmp Call INIT function
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bcs .97
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jsr .97
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clc
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rts
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.97 pha save ERR
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lda S.InitProcessA.FULLPATH
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jsr S.FreeMemA
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pla
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.98 pha save ERR
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lda S.InitProcessA.PATH
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jsr S.FreeMemA
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pla
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.99 sec
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rts
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S.InitProcessA.PATH .BS 1
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S.InitProcessA.FULLPATH .BS 1
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*--------------------------------------
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* S.SelectProcessA
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* In : A=PSID
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*--------------------------------------
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S.SelectProcessA
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jsr S.GetPSByIDA
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bcs *
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>STYA pPS
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S.SelectProcess ldy #S.PS.hCS
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lda (pPs),y
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jsr S.GetMemPtrA
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>STYA pCode
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ldy #S.PS.hDS
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lda (pPs),y
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beq .1
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jsr S.GetMemPtrA
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>STYA pData
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.1 ldy #S.PS.hOUTDEV
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lda (pPs),y
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beq .8
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jsr S.GetDevByIDA
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>STYA pDev
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.8 clc
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rts
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*--------------------------------------
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* S.FreeProcessA
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* In : A = PID to free
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*--------------------------------------
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S.FreeProcessA jsr S.GetPSByIDA
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bcs .9
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>STYA ZPQuickPtr1
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ldy #S.PS.hARGS
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lda (ZPQuickPtr1),y
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beq .1
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jsr S.FreeMemA
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.1 ldy #S.PS.hCMD
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lda (ZPQuickPtr1),y
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beq .2
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jsr S.FreeMemA
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.2 ldy #S.PS.hENV
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lda (ZPQuickPtr1),y
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beq .3
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jsr S.FreeMemA
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.3 ldy #S.PS.hPREFIX
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lda (ZPQuickPtr1),y
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beq .4
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jsr S.FreeMemA
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.4 ldy #S.PS.hDS
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lda (ZPQuickPtr1),y
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beq .5
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jsr S.FreeMemA
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.5 ldy #S.PS.hCS
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lda (ZPQuickPtr1),y
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beq .8
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jsr S.FreeMemA
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.8 lda #0
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sta (ZPQuickPtr1) Mark TSKSLOT as free
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clc
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rts
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.9 bra *
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*--------------------------------------
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TSKMGR.SIZE .BS 1
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TSKMGR.COUNT .BS 1
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TSKMGR.LASTID .BS 1
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*--------------------------------------
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MSG.NEWPS >PSTRING "\nTskMgr:"
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MAN
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SAVE SYS/KERNEL.S.TSK
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LOAD SYS/KERNEL.S
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ASM
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