mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-27 04:49:20 +00:00
405 lines
7.4 KiB
Plaintext
405 lines
7.4 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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*--------------------------------------
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* K.ExecProcessNewEnvYA
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* K.ExecProcessYA (Blocking Parent PID)
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* K.CreateProcessNewEnvYA
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* K.CreateProcessYA (Non Blocking)
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* in :
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* Y,A = PTR To Cmd Line
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* out :
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* A = Child PSID
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*--------------------------------------
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K.ExecProcessNewEnvYA
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ldx #S.PS.F.ENV+S.PS.F.HOLD
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.HS 2C bit abs
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K.ExecProcessYA ldx #S.PS.F.HOLD
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.HS 2C bit abs
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K.CreateProcessNewEnvYA
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ldx #S.PS.F.ENV
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.HS 2C bit abs
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K.CreateProcessYA
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ldx #0
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stx K.CreateProcess.Flags
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jsr K.ExpandPStrYA
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bcs .99
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stx K.CreateProcess.hCmdLine
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>STYA K.CreateProcess.CmdLine
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jsr PS.CreateChild
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bcs .98
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sta K.CreateProcess.CPSID
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jsr PS.Init
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bcs .97
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lda K.CreateProcess.CPSID
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clc
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rts
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.97 pha save error code
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lda K.CreateProcess.CPSID
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jsr PS.FreeA
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pla get back error code
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.98 pha
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lda K.CreateProcess.hCmdLine
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jsr K.FreeMemA
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pla
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.99 sec
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rts
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*--------------------------------------
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K.CreateProcess.Flags .BS 1
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K.CreateProcess.hCmdLine .BS 1
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K.CreateProcess.CmdLine .BS 2
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K.CreateProcess.CPSID .BS 1
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*--------------------------------------
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* K.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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K.GetPSByIDA sta K.GetPSByIDA.PS
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>LDYAI TskMgr.Table
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>STYA ZPQuickPtr1
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lda K.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
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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 K.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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K.GetPSByIDA.PS .BS 1
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*--------------------------------------
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K.Sleep pla get PC LO
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sec
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sbc pCode
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ldy #S.PS.PC
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sta (pPs),y
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pla get PC HI
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sbc pCode+1
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iny
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sta (pPs),y
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lda (pPs)
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ora #S.PS.F.SLEEP
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sta (pPs)
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clc No error,
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rts back to Kernel
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*--------------------------------------
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* PS.CreateChild
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* in :
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* out :
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* A = PSID
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* we cannot use ZPQuickPtrs1 & 2
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* because of calling K.NewPStrYA & S.DupEnvA
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*--------------------------------------
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PS.CreateChild >LDYAI TskMgr.Table+S.PS
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>STYA ZPQuickPtr3
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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 (ZPQuickPtr3) Found an empty slot
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bpl .3
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lda ZPQuickPtr3
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clc
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adc #S.PS
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sta ZPQuickPtr3
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bcc .1
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inc ZPQuickPtr3+1
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bra .1
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.2 cpx #K.PS.MAX
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bne .3
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lda #TSKMGR.ERROOH
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sec
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rts
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.3 inc TSKMGR.SIZE
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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 K.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 (ZPQuickPtr3),y
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lda #0
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ldy #S.PS.hCS
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.5 sta (ZPQuickPtr3),y Blank Everything in this S.PS
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iny
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cpy #S.PS
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bne .5
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lda #S.PS.F.ENV
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bit K.CreateProcess.Flags need to create ENV & Prefix ?
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beq .6 no...
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sta (ZPQuickPtr3) Mark this PS with ENV flag
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ldy #S.PS.hPREFIX copy hPREFIX...
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lda (pPs),y
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jsr K.GetMemPtrA
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jsr K.NewPStrYA
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bcs .9
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txa
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ldy #S.PS.hPREFIX
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sta (ZPQuickPtr3),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 PS.DupEnvA
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bcs .9
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ldy #S.PS.hENV
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sta (ZPQuickPtr3),y
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bra .8
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.6 ldy #S.PS.hPREFIX reuse same hPREFIX...
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lda (pPs),y
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sta (ZPQuickPtr3),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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sta (ZPQuickPtr3),y
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.8 ldy #S.PS.hINDEV
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.81 lda (pPs),y
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sta (ZPQuickPtr3),y
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iny
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cpy #S.PS.hERRDEV+1
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bne .81
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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 (ZPQuickPtr3),y
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ldy #S.PS.CID
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lda TSKMGR.LASTID
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sta (pPs),y
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lda #S.PS.F.HOLD
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bit K.CreateProcess.Flags
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beq .82
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ora (pPs)
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sta (pPs) HOLD parent PS if ExecProcess
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.82 lda #S.PS.F.INUSE+S.PS.F.INIT
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ora (ZPQuickPtr3)
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sta (ZPQuickPtr3) Make this PS Init....
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lda TSKMGR.LASTID
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clc Exit with A=PSID
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.9 rts
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*--------------------------------------
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PS.Init >LDYA K.CreateProcess.CmdLine
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jsr K.PStr2StrArrayYA
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bcs .9
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phy save PTR to StrArray...
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pha
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txa
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ldy #S.PS.hCMDLINE
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sta (ZPQuickPtr3),y
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pla Restore PTR...
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ply
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>SYSCALL LoadExeYA Y,A=filename full path
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bcs .9
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>STYA ZPQuickPtr4 save PTR to Code Segment
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txa
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ldy #S.PS.hCS
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sta (ZPQuickPtr3),y save CS hMem in TSKSLOT
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ldy #H.BIN.EXE.DS.SIZE+1
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lda (ZPQuickPtr4),y Load DS.SIZE HI
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tax
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dey
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ora (ZPQuickPtr4),y
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beq .2 DS.SIZE=0...
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lda (ZPQuickPtr4),y
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>PUSHAX Push DS.SIZE
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>PUSHBI S.MEM.F.INIT0 Clear DS
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jsr K.GetMem
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bcs .9
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txa
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ldy #S.PS.hDS
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sta (ZPQuickPtr3),y save DS hMem in TSKSLOT
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.2
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clc
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.9 rts
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*--------------------------------------
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* PS.FreeA
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* In : A = PID to free
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*--------------------------------------
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PS.FreeA jsr K.GetPSByIDA
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bcs *
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>STYA ZPQuickPtr1
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ldy #S.PS.hCMDLINE
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lda (ZPQuickPtr1),y
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beq .2
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jsr K.FreeMemA
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lda (ZPQuickPtr1) get S.PS.F
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and #S.PS.F.ENV do we have to discard duplicated env & prefix ?
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beq .4
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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 K.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 K.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 K.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 K.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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*--------------------------------------
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* PS.SelectA
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* In : A=PSID
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*--------------------------------------
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PS.SelectA tay
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bne PS.SelectN
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PS.Select0
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>LDYAI TskMgr.Table Make PS #0 as current process
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>STYA pPs
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bra PS.SelectDev
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PS.SelectN jsr K.GetPSByIDA
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bcs *
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>STYA pPs
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PS.Select ldy #S.PS.hCS
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lda (pPs),y
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jsr K.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 PS.SelectDev
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jsr K.GetMemPtrA
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>STYA pData
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PS.SelectDev ldy #S.PS.hOUTDEV
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lda (pPs),y
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beq .8
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jsr K.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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* PS.DupEnvA
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* In:
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* A = ENV hMem To Duplicate
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* Out:
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* A = hMem to new ENV
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*--------------------------------------
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PS.DupEnvA jsr K.GetMemPtrA
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>STYA ZPQuickPtr1
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>PUSHWI K.ENV.SIZE
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>PUSHBI 0
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jsr K.GetMem
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bcs .9
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>STYA ZPQuickPtr2
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ldy #0
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.1 lda (ZPQuickPtr1),y
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sta (ZPQuickPtr2),y
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beq .8
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iny
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bne .1
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inc ZPQuickPtr1+1
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inc ZPQuickPtr2+1
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bra .1
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.8 txa
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clc
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.9 rts
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*--------------------------------------
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MAN
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SAVE SYS/KERNEL.S.PS
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LOAD SYS/KERNEL.S
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ASM
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