A2osX/SYS/KERNEL.S.PS.txt
2018-08-11 12:57:57 +02:00

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NEW
PREFIX /A2OSX.BUILD
AUTO 4,1
*/--------------------------------------
* # ExecPSNewEnv.
* # ExecPS (Blocking Parent PID)
* # CreatePSNewEnv
* # CreatePS (Non Blocking)
* **In:**
* Y,A = PTR To Cmd Line
* **Out:**
* A = Child PSID
*\--------------------------------------
K.ExecPSNewEnv ldx #S.PS.F.DUPENV+S.PS.F.HOLD
.HS 2C bit abs
K.ExecPS ldx #S.PS.F.HOLD
.HS 2C bit abs
K.CreatePSNewEnv
ldx #S.PS.F.DUPENV
.HS 2C bit abs
K.CreatePS ldx #0
stx PS.Flags
>STYA PS.CL
jsr PS.CreateChild Child S.PS at ZPPtr3
bcs .9
sta .8+1
>LDYA PS.CL
jsr PS.CmdLine2Args Y,A = Args[0]
bcs .9
jsr PS.Load
bcc .8
pha save error code
lda .8+1
jsr CORE.PSFree.A
pla get back error code
sec
rts
.8 lda #$ff self modified
.9 rts
*--------------------------------------
PS.Flags .BS 1
PS.CL .BS 2
*--------------------------------------
* PS.CreateChild
* in :
* out :
* A = PSID
* we cannot use ZPPtrs1 & 2
* because of calling K.NewStr.YA & S.DupEnv.A
*--------------------------------------
PS.CreateChild ldx #0
.1 cpx CORE.PSCount
beq .2
lda PS.Table.PID,x
beq .31 Found an empty slot
inx
bra .1
.2 cpx #K.PS.MAX
bne .3
lda #K.E.OOH
sec
rts
.99 plx
rts
.3 inc CORE.PSCount
.31 phx save PS inex
.4 inc CORE.LastPSID Get a PSID not alredy running
beq .4 not = 0
lda CORE.LastPSID
jsr CORE.GetPSByID
bcc .4
plx
lda CORE.LastPSID
sta PS.Table.PID,x
phx
>LDYAI S.PS
jsr K.GetMem0 Blank Everything in this S.PS
bcs .99
>STYA ZPPtr3
txa
plx
sta PS.Table.hMem,x
jsr PS.SetMemOwner Set Ownership
ldy #S.PS.PID
lda CORE.LastPSID
sta (ZPPtr3),y
lda #S.PS.F.DUPENV
bit PS.Flags need to create ENV & Prefix ?
beq .6 no...
sta (ZPPtr3) Mark this PS with DUPENV flag
ldy #S.PS.hPREFIX copy hPREFIX...
lda (pPs),y
jsr K.GetMemPtr
jsr K.NewStr
bcs .9
jsr PS.SetMemOwner Set Ownership
txa
ldy #S.PS.hPREFIX
sta (ZPPtr3),y
ldy #S.PS.hENV ...and hENV from parent PS
lda (pPs),y
jsr PS.DupEnv
bcs .9
ldy #S.PS.hENV
sta (ZPPtr3),y
bra .8
.6 ldy #S.PS.hPREFIX reuse same hPREFIX...
lda (pPs),y
sta (ZPPtr3),y
ldy #S.PS.hENV ...and hENV from parent PS
lda (pPs),y
sta (ZPPtr3),y
.8 ldy #S.PS.hStdIn
.81 lda (pPs),y
sta (ZPPtr3),y
iny
cpy #S.PS.hStdErr+1
bne .81
ldy #S.PS.PID
lda (pPs),y
ldy #S.PS.PPID
sta (ZPPtr3),y
lda #S.PS.F.HOLD
bit PS.Flags
beq .82
ora (pPs)
sta (pPs) HOLD parent PS if ExecPS
.82 lda #S.PS.F.INIT
ora (ZPPtr3)
sta (ZPPtr3) Make this PS Init....
ldy #S.PS.CPID
lda CORE.LastPSID
sta (pPs),y
clc Exit with A=PSID
.9 rts
*--------------------------------------
PS.CmdLine2Args >STYA ZPPtr1
ldy #0
.1 lda (ZPPtr1),y compute strlen in Y,X
beq .2
iny
bne .1 max 255
.2 tya +2 for ending 0 for last string, and endig 0 for array
clc
adc #2
tay
lda #0
bcc .3
inc
.3 jsr K.GetMem
bcs .9
phy save PTR.LO
pha save PTR.HI
>STYA ZPPtr2
txa
ldy #S.PS.hARGS
sta (ZPPtr3),y
jsr PS.SetMemOwner Set Ownership
stz PS.bInQuote
ldy #$ff
ldx #0 Arg Count
.4 iny
lda (ZPPtr1),y
beq .7
cmp #'"' found a quote ?
bne .5
lda PS.bInQuote
eor #$ff
sta PS.bInQuote
bra .4
.5 cmp #' '
bne .6
bit PS.bInQuote
bmi .6
inx Found one arg !!!
lda #0 set this token End
.6 sta (ZPPtr2)
inc ZPPtr2
bne .4
inc ZPPtr2+1
bra .4
.7 sta (ZPPtr2) set Arg Ending 0
inc ZPPtr2
bne .8
inc ZPPtr2+1
.8 sta (ZPPtr2) set Array Ending 0
txa
ldy #S.PS.ARGC
sta (ZPPtr3),y
pla get back PTR.HI
ply get back PTR.LO
clc
.9 rts
PS.bInQuote .BS 1
*--------------------------------------
PS.Load jsr BIN.Load Y,A=filename full path
bcs .9
>STYA ZPPtr4 save PTR to Code Segment
phy
ldy #S.PS.ZP.CODE+1
sta (ZPPtr3),y save pCode HI...
dey
pla
sta (ZPPtr3),y save pCode LO...
txa
ldy #S.PS.hCS
sta (ZPPtr3),y save CS hMem in S.PS
jsr K.GetMemByID
jsr PS.SetMemOwner Set Ownership
ldy #H.BIN.DS.SIZE+1
lda (ZPPtr4),y Load DS.SIZE HI
tax
dey
ora (ZPPtr4),y
beq .2 DS.SIZE=0...
lda (ZPPtr4),y
tay
txa Y,A = DS.SIZE
ldx #S.MEM.F.INIT0+S.MEM.F.DATA
jsr MEM.GetMem.YAX
bcs .9
phy
ldy #S.PS.ZP.DATA+1
sta (ZPPtr3),y save pData HI...
dey
pla
sta (ZPPtr3),y save pData LO...
txa
ldy #S.PS.hDS
sta (ZPPtr3),y save DS hMem in S.PS
jsr PS.SetMemOwner Set Ownership
.2 ldy #H.BIN.SS.SIZE
lda (ZPPtr4),y Load SS.SIZE
ldy #S.PS.ZP.STACK
sta (ZPPtr3),y save pStack LO...
tay
bne .3 SS.SIZE.LO=0, set as default $100
lda #1 SS.SIZE.HI
.HS 2C bit abs
.3 lda #0
ldx #S.MEM.F.ALIGN+S.MEM.F.STACK
jsr MEM.GetMem.YAX
bcs .9
ldy #S.PS.ZP.STACK+1
sta (ZPPtr3),y save pStack HI...(LO alredy set to Stack TOP)
txa
ldy #S.PS.hSS
sta (ZPPtr3),y save SS hMem in S.PS
jsr PS.SetMemOwner Set Ownership
ldy #H.BIN.ZP.SIZE
lda (ZPPtr4),y
clc
adc #8 Add room for 4 saved PTR
ldy #S.PS.ZP.SIZE
sta (ZPPtr3),y
clc
.9 rts
*--------------------------------------
* PS.DupEnv
* In:
* A = ENV hMem To Duplicate
* Out:
* A = hMem to new ENV
*--------------------------------------
PS.DupEnv jsr K.GetMemPtr
>STYA ZPPtr1
>LDYAI K.ENV.SIZE
jsr K.GetMem
bcs .9
>STYA ZPPtr2
jsr PS.SetMemOwner Set Ownership
ldy #0
.1 lda (ZPPtr1),y
sta (ZPPtr2),y
beq .8
.2 iny
bne .3
inc ZPPtr1+1
inc ZPPtr2+1
.3 lda (ZPPtr1),y
sta (ZPPtr2),y
bne .2
iny
bne .1
inc ZPPtr1+1
inc ZPPtr2+1
bra .1
.8 txa hMem
clc
.9 rts
*--------------------------------------
PS.SetMemOwner lda CORE.LastPSID
ldy #S.MEM.OWNERPID
sta (ZPMEMMGR),y
rts
*/--------------------------------------
* # GetMemStat
* **In:**
* Y,A = Ptr to 24 bytes buffer
* **Out:**
* Buffer filled with memory stats
*\--------------------------------------
K.GetMemStat >STYA ZPMemMgrTmp1
ldy #22
ldx #6
.1 lda DevMgr.Stat,x
sta (ZPMemMgrTmp1),y
dey
dex
bpl .1
sta SETREADAUX
ldy #14
jsr .2
sta CLRREADAUX
ldy #6
.2 ldx #6
.3 lda Mem.Table,x
sta (ZPMemMgrTmp1),y
dey
dex
bpl .3
rts
*/--------------------------------------
* # GetPSStatus
* **In:**
* A = PID
* **Out:**
* A = Status Byte
*\--------------------------------------
K.GetPSStatus jsr CORE.GetPSByID
bcs .9
>STYA ZPPtr1
lda (ZPPtr1)
.9 rts
*/--------------------------------------
* # GetPSStat
* **In:**
* Y,A = Ptr to 24 bytes buffer
* **Out:**
* Buffer filled with PS stats
*\--------------------------------------
K.GetPSStat >STYA ZPPtr1
ldx #0
ldy #1
lda CORE.InKernelStat
sta (ZPPtr1),y
iny
.1 lda PS.Table.PID,x
beq .2
lda PS.Table.hMem,x
sta (ZPPtr1),y
iny
lda PS.Table.Stat,x
sta (ZPPtr1),y
iny
.2 inx
cpx CORE.PSCount
bne .1
.9 tya
lsr
dec
sta (ZPPtr1)
rts
*--------------------------------------
MAN
SAVE /A2OSX.SRC/SYS/KERNEL.S.PS
LOAD /A2OSX.SRC/SYS/KERNEL.S
ASM