Apple-2-SW/A2osX
1
0
Fork 0
mirror of https://github.com/A2osX/A2osX.git synced 2024-11-26 13:49:18 +00:00
Code Issues Projects Releases Wiki Activity
0a5eced59a
A2osX/SYS/KERNEL.S.TSK.txt
Rémy GIBERT 9dcddba64e Removed .OP directive in .INB files
2016-01-04 08:18:33 +01:00

641 lines
12 KiB
Plaintext
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
.LIST OFF
*--------------------------------------
* S.TskMgrInit
*--------------------------------------
S.TskMgrInit stz TSKMGR.LASTID
lda #1
sta TSKMGR.SIZE One Slot Busy (Kernel PS=0)
>LDYAI TskMgr.Table Clear whole process table
>STYA ZPQuickPtr1
ldx #K.PS.MAX
.1 lda #0
ldy #S.PS.SIZE-1
.2 sta (ZPQuickPtr1),y
dey
bpl .2
lda ZPQuickPtr1
clc
adc #S.PS.SIZE
sta ZPQuickPtr1
bcc .3
inc ZPQuickPtr1+1
.3 dex
bne .1
lda #1
ldy #S.PS.hINDEV
sta TskMgr.Table,y Make In DEV = SYS
ldy #S.PS.hOUTDEV
sta TskMgr.Table,y Make OUT DEV = SYS
ldy #S.PS.hERRDEV
sta TskMgr.Table,y Make ERR DEV = SYS
jsr S.CreateEnv
bcs *
ldy #S.PS.hENV
sta TskMgr.Table,y
>LDYAI TmpBuffer256
jsr S.MLIGetPrefixYA
bcs *
>LDYAI TmpBuffer256
jsr S.NewPStrYA
bcs *
ldy #S.PS.hPREFIX
sta TskMgr.Table,y
S.TskMgrInit.Env
jsr S.SelectProcess0
ldx #DEVMGR.OPEN
jsr pDevJmp
>PUSHWI TmpBuffer256 push ENV value
>PUSHWI ENV.A2osX push ENV name
jsr S.SetEnvVarP
bcs .9
>PUSHWI ENV.PATH.VALUE
>PUSHWI ENV.PATH
jsr S.SetEnvVarP
bcs .9
>PUSHWI ENV.LIB.VALUE
>PUSHWI ENV.LIB
jsr S.SetEnvVarP
bcs .9
>PUSHWI ENV.DRV.VALUE
>PUSHWI ENV.DRV
jsr S.SetEnvVarP
bcs .9
.9 rts
*--------------------------------------
* S.TskMgrRun
*--------------------------------------
S.TskMgrRun >LDYAI TskMgr.Table+S.PS.SIZE
>STYA pPs
lda #1 Skip PS #0
sta TSKMGR.COUNT
.1 lda (pPs) get S.PS.F
and #S.PS.F.INUSE In use ?
beq .5
lda (pPs) get S.PS.F
and #S.PS.F.HOLD Waiting for Another Task to Terminate?
beq .2
ldy #S.PS.CID
lda (pPs),y
jsr S.GetPSByIDA
bcc .5 yes, running....
lda (pPs) get S.PS.F
and #$FF^S.PS.F.HOLD unmark as HOLD
sta (pPs)
.2 jsr S.SelectProcess
ldy #S.PS.PC+1 Is this PS sleeping?
lda (pPs),y
tax
dey
ora (pPs),y
beq .3 no, call TSKMGR.RUN
lda (pPs),y
clc
adc pCode
sta S.TskMgrRunJmp+1
txa
adc pCode+1
sta S.TskMgrRunJmp+2
lda #0 Don't forget to reset S.PC
ldy #S.PS.PC
sta (pPs),y
iny
sta (pPs),y
jsr S.TskMgrRunJmp
bra .4
.3 ldx #TSKMGR.RUN
jsr pCodeJmp Call RUN function
.4 bcc .5 RUN said CS=QUIT?
ldx #TSKMGR.QUIT yes, quit this process
jsr pCodeJmp Call QUIT function
ldy #S.PS.ID
lda (pPs),y
jsr S.FreeProcessA
bcs .99
.5 lda pPs
clc
adc #S.PS.SIZE
sta pPs
bcc .6
inc pPs+1
.6 lda TSKMGR.COUNT
inc TSKMGR.COUNT
cmp TSKMGR.SIZE
bne .1
clc
rts
.99 bra *
*--------------------------------------
S.TskMgrRunJmp jmp $FFFF
*--------------------------------------
* S.DispatchEvent
* IN:
* OUT:
* CS: Not Dispatched
* CC: Event Cleared
*--------------------------------------
S.DispatchEvent >LDYAI TskMgr.Table+S.PS.SIZE
>STYA pPs
lda #1
sta TSKMGR.COUNT
.1 lda (pPs) get S.PS.F
and #S.PS.F.INUSE In use ?
beq .3
lda (pPs) get S.PS.F
and #S.PS.F.HOLD Waiting for Another Task to Terminate?
bne .3
lda (pPs) get S.PS.F
and #S.PS.F.EVENT Accept Events ?
beq .3
jsr S.SelectProcess
ldx #TSKMGR.DOEVENT
jsr pCodeJmp Call DOEVENT function
bcc .8
.3 lda pPs
clc
adc #S.PS.SIZE
sta pPs
bcc .4
inc pPs+1
.4 lda TSKMGR.COUNT
inc TSKMGR.COUNT
cmp TSKMGR.SIZE
bne .1
sec
rts
.8 jsr S.DestroyEvent
clc
rts
*--------------------------------------
* S.TskMgrQuit
*--------------------------------------
S.TskMgrQuit clc
rts
*--------------------------------------
* PUBLIC
*--------------------------------------
* S.ExecProcessNewEnvYA
* S.ExecProcessYA (Blocking Parent PID)
* S.CreateProcessNewEnvYA
* S.CreateProcessYA (Non Blocking)
* in :
* A = hMem To Cmd Line
* Y = hMem To Args
* out :
* A = Child PSID
*--------------------------------------
S.ExecProcessNewEnvYA
ldx #S.PS.F.ENV
.HS 2C bit abs
S.ExecProcessYA ldx #0
S.ExecProcess jsr S.CreateProcess
bcs .9 terminated, do not set PID as HOLD
ldy #S.PS.CID
sta (pPs),y
pha Save Child PID
lda (pPs)
ora #S.PS.F.HOLD
sta (pPs)
pla Get Back PID
clc
.9 rts
*--------------------------------------
S.CreateProcessNewEnvYA
ldx #S.PS.F.ENV
.HS 2C bit abs
S.CreateProcessYA
ldx #0
S.CreateProcess stx S.CreateChildProcess.Flags
sta S.CreateProcessA.Cmd
sty S.CreateProcessA.Args
* lda #'|'
* jsr S.CoutA
* lda S.CreateProcessA.Cmd
* jsr S.PSTROutA
* lda #'|'
* jsr S.CoutA
* lda S.CreateProcessA.Args
* beq .1
* jsr S.PSTROutA
*.1 lda #'|'
* jsr S.CoutA
* lda #13
* jsr S.CoutA
jsr S.CreateChildProcess
bcs .99
sta S.CreateProcessA.CPSID
jsr S.SelectProcessA
jsr S.InitProcess
bcs .98 Init Failed or exit?
ldy #S.PS.PID switch back to Parent Process
lda (pPs),y
jsr S.SelectProcessA
lda S.CreateProcessA.CPSID
clc
rts
.98 pha save error code
ldy #S.PS.PID switch back to Parent Process
lda (pPs),y
jsr S.SelectProcessA
lda S.CreateProcessA.CPSID
jsr S.FreeProcessA
pla get back error code
.99 sec
rts
*--------------------------------------
S.CreateProcessA.Cmd .BS 1
S.CreateProcessA.Args .BS 1
S.CreateProcessA.CPSID .BS 1
*--------------------------------------
* S.GetPSByIDA
* In :
* A = PID
* Out :
* Y,A = PTR to TSKSLOT
*--------------------------------------
S.GetPSByIDA sta S.GetPSByIDA.PS
>LDYAI TskMgr.Table
>STYA ZPQuickPtr1
lda S.GetPSByIDA.PS
beq .8
ldx #0
.1 inx
lda ZPQuickPtr1
clc
adc #S.PS.SIZE
sta ZPQuickPtr1
bcc .2
inc ZPQuickPtr1+1
.2 lda (ZPQuickPtr1)
bpl .3
ldy #S.PS.ID
lda (ZPQuickPtr1),y
cmp S.GetPSByIDA.PS
beq .8
.3 cpx TSKMGR.SIZE
bne .1
.9 lda #TSKMGR.ERRNSP
sec
rts
.8 >LDYA ZPQuickPtr1
clc
rts
*--------------------------------------
S.GetPSByIDA.PS .BS 1
*--------------------------------------
S.Sleep ldy #S.PS.hCS
lda (pPs),y
>SYSCALL SYS.GetMemPtrA
>STYA S.Sleep.SaveCS
ldy #S.PS.PC
pla get PC LO
plx get PC HI
inc Advance PC one Byte
bne .1
inx
.1 sec
sbc S.Sleep.SaveCS
sta (pPs),y
iny
txa
sbc S.Sleep.SaveCS+1
sta (pPs),y
clc No error,
rts back to Kernel
*--------------------------------------
S.Sleep.SaveCS .BS 2
*--------------------------------------
* PRIVATE
*--------------------------------------
* S.CreateChildProcess
* in :
* out :
* A = PSID
* we cannot use ZPQuickPtrs
* because of calling S.PStrCpyA & S.DupEnvA
*--------------------------------------
S.CreateChildProcess
>LDYAI TskMgr.Table+S.PS.SIZE
>STYA R.AX
ldx #0
.1 inx
cpx TSKMGR.SIZE
beq .2
lda (R.AX) Found an empty slot
bpl .3
lda R.AL
clc
adc #S.PS.SIZE
sta R.AL
bcc .1
inc R.AH
bra .1
.2 cpx #K.PS.MAX
bne .30
lda #TSKMGR.ERROOH
sec
rts
.30 inc TSKMGR.SIZE
.3 lda #S.PS.F.INUSE
ora S.CreateChildProcess.Flags
sta (R.AX)
.4 inc TSKMGR.LASTID Get a PSID not alredy running
beq .4 not = 0
lda TSKMGR.LASTID
jsr S.GetPSByIDA
bcc .4
ldy #S.PS.ID
lda TSKMGR.LASTID
sta (R.AX),y
lda #0
ldy #S.PS.hCS
.5 sta (R.AX),y Blank Everything in this S.PS
iny
cpy #S.PS.SIZE
bne .5
lda S.CreateChildProcess.Flags
and #S.PS.F.ENV need to create ENV & Prefix ?
beq .6
ldy #S.PS.hPREFIX copy hPREFIX...
lda (pPs),y
jsr S.PStrCpyA
bcs .99
ldy #S.PS.hPREFIX
sta (R.AX),y
ldy #S.PS.hENV ...and hENV from parent PS
lda (pPs),y
jsr S.DupEnvA
bcs .99
ldy #S.PS.hENV
sta (R.AX),y
bra .8
.6 ldy #S.PS.hPREFIX reuse same hPREFIX...
lda (pPs),y
sta (R.AX),y
ldy #S.PS.hENV ...and hENV from parent PS
lda (pPs),y
sta (R.AX),y
.8 ldy #S.PS.hINDEV
lda (pPs),y
sta (R.AX),y
ldy #S.PS.hOUTDEV
lda (pPs),y
sta (R.AX),y
ldy #S.PS.hERRDEV
lda (pPs),y
sta (R.AX),y
ldy #S.PS.ID
lda (pPs),y
ldy #S.PS.PID
sta (R.AX),y
lda TSKMGR.LASTID
clc Exit with A=PSID
rts
.99 sec
rts
*--------------------------------------
S.CreateChildProcess.Flags
.BS 1
*--------------------------------------
* S.InitProcess
* In :
* A = hMem To Full Cmd Line
*--------------------------------------
S.InitProcess lda S.CreateProcessA.Args
beq .1
jsr S.ExpandPStrA
.1 ldy #S.PS.hARGS
sta (pPs),y set ARGS hMem (0 if none)
lda S.CreateProcessA.Cmd
jsr S.ExpandPStrA
ldy #S.PS.hCMD
sta (pPs),y
jsr S.LoadBinA A = BinPath hMem
bcs .99
>STYA pCode save PTR to Code Segment
txa
ldy #S.PS.hCS
sta (pPs),y save CS hMem in TSKSLOT
ldy #H.BIN.BIN.DS.SIZE+1
lda (pCode),y Load DS.SIZE HI
tax
dey
ora (pCode),y
beq .2 DS.SIZE=0...
lda (pCode),y
>PUSHAX Push DS.SIZE
>PUSHBI S.MEM.F.INIT0 Clear DS
jsr S.GetMem
bcs .99
>STYA pData
txa
ldy #S.PS.hDS
sta (pPs),y save DS hMem in TSKSLOT
.2 ldx #TSKMGR.INIT
jsr pCodeJmp Call INIT function
.99 rts
*--------------------------------------
* S.SelectProcessA
* In : A=PSID
*--------------------------------------
S.SelectProcessA
tay
bne S.SelectProcessN
S.SelectProcess0
>LDYAI TskMgr.Table Make PS #0 as current process
>STYA pPs
bra S.SelectProcessDev
S.SelectProcessN
jsr S.GetPSByIDA
bcs *
>STYA pPs
S.SelectProcess ldy #S.PS.hCS
lda (pPs),y
jsr S.GetMemPtrA
>STYA pCode
ldy #S.PS.hDS
lda (pPs),y
beq S.SelectProcessDev
jsr S.GetMemPtrA
>STYA pData
S.SelectProcessDev
ldy #S.PS.hOUTDEV
lda (pPs),y
beq .8
jsr S.GetDevByIDA
>STYA pDev
.8 clc
rts
*--------------------------------------
* S.FreeProcessA
* In : A = PID to free
*--------------------------------------
S.FreeProcessA jsr S.GetPSByIDA
bcs .9
>STYA ZPQuickPtr1
ldy #S.PS.hARGS
lda (ZPQuickPtr1),y
beq .1
jsr S.FreeMemA
.1 ldy #S.PS.hCMD
lda (ZPQuickPtr1),y
beq .2
jsr S.FreeMemA
lda (ZPQuickPtr1) get S.PS.F
and #S.PS.F.ENV do we have to discard duplicated env & prefix ?
beq .4
.2 ldy #S.PS.hENV
lda (ZPQuickPtr1),y
beq .3
jsr S.FreeMemA
.3 ldy #S.PS.hPREFIX
lda (ZPQuickPtr1),y
beq .4
jsr S.FreeMemA
.4 ldy #S.PS.hDS
lda (ZPQuickPtr1),y
beq .5
jsr S.FreeMemA
.5 ldy #S.PS.hCS
lda (ZPQuickPtr1),y
beq .8
jsr S.FreeMemA
.8 lda #0
sta (ZPQuickPtr1) Mark TSKSLOT as free
clc
rts
.9 bra *
*--------------------------------------
TSKMGR.SIZE .BS 1
TSKMGR.COUNT .BS 1
TSKMGR.LASTID .BS 1
*--------------------------------------
MAN
SAVE SYS/KERNEL.S.TSK
LOAD SYS/KERNEL.S
ASM
Reference in New Issue View Git Blame Copy Permalink