A2osX/SYS/KERNEL.S.PS.txt

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2017-12-22 21:24:30 +00:00
NEW
2018-11-17 17:17:13 +00:00
PREFIX
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AUTO 4,1
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*--------------------------------------
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.DUMMY
.OR ZPTMP+21
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PS.Flags .BS 1
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PS.ArgV .BS 2
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PS.ArgSize .BS 2
PS.hMem .BS 1
.ED
*/--------------------------------------
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* # ExecL
* ## C
* `int execl(const char* cmdline, short int flags);`
* ## ASM
* `>PUSHB flags`
* `>LDYA cmdline`
* `>SYSCALL execl`
* ## RETURN VALUE
* A = Child PSID
*\--------------------------------------
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K.ExecL sty .1+1
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sta .2+1
>PULLB PS.Flags
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>LDYAI 256
jsr K.GetMem
bcs .99
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2018-10-26 14:46:11 +00:00
stx .90+1
>STYA PS.ArgV
>PUSHYA
.1 ldy #$ff SELF MODIFIED
.2 lda #$ff SELF MODIFIED
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jsr K.Args2ArgV
bcs .9
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jsr PS.Exec
.9 php
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pha
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.90 lda #$ff SELF MODIFIED
jsr K.FreeMem
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pla
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plp
.99 rts
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*/--------------------------------------
* # ExecV
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* ## C
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* `int exec(const char* argv[], short int flags);`
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* ## ASM
* `>PUSHB flags`
* `>LDYA argv`
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* `>SYSCALL execv`
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* ## RETURN VALUE
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* A = Child PSID
*\--------------------------------------
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K.ExecV >STYA PS.ArgV
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>PULLB PS.Flags
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2018-11-28 14:58:42 +00:00
PS.Exec jsr PS.CreateChild A=PID,Child S.PS at ZPPtr3,PS.Load.hMem
bcs .9
2018-11-27 14:03:26 +00:00
sta .8+1
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2018-11-28 14:58:42 +00:00
stz K.IOBuf
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jsr PS.Load
2018-11-23 07:02:00 +00:00
bcs .90
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2018-11-22 16:39:41 +00:00
jsr PS.AddArgV
bcc .8
2018-11-23 07:02:00 +00:00
.90 pha save error code
.91 lda .8+1
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jsr CORE.PSFree
pla get back error code
sec
rts
2018-11-27 14:03:26 +00:00
.8 lda #$ff SELF MODIFIED
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.9 rts
*--------------------------------------
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* PS.CreateChild
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* in :
* out :
* A = PSID
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* we cannot use ZPPtrs1 & 2
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* because of calling K.StrDup & PS.DupEnv
2016-08-17 06:25:58 +00:00
*--------------------------------------
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PS.CreateChild ldx CORE.PSCount
beq .3
ldx #0
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2018-10-15 15:39:21 +00:00
.1 lda PS.Table.PID,x
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beq .4 Found an empty slot
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inx
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cpx CORE.PSCount
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bne .1
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2018-10-23 15:36:57 +00:00
cpx #K.PS.MAX
bne .3
2018-10-21 20:54:07 +00:00
lda #E.OOH
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sec
rts
.99 plx
rts
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.3 inc CORE.PSCount
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.4 inc CORE.LastPSID Get a PSID not already running
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beq .4 not = 0
lda CORE.LastPSID
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jsr CORE.GetPS Y=PS Index, X,A unmodified
bcc .4 running...loop
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lda CORE.LastPSID
sta PS.Table.PID,x
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phx save PS Index
2016-08-17 06:25:58 +00:00
>LDYAI S.PS
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jsr K.GetMem0 Blank Everything in this S.PS
bcs .99
>STYA ZPPtr3
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stx PS.hMem
txa
plx
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sta PS.Table.hPS,x
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jsr PS.SetMemOwner Set Ownership
ldy #S.PS.PID
lda CORE.LastPSID
sta (ZPPtr3),y
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ldy #S.PS.hPREFIX copy hPREFIX...
lda (pPs),y
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jsr K.GetMemPtr
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>SYSCALL StrDup
bcs .9
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2018-11-28 14:58:42 +00:00
jsr PS.SetMemOwner Set Ownership
2016-08-17 06:25:58 +00:00
txa
ldy #S.PS.hPREFIX
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sta (ZPPtr3),y
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2018-11-28 14:58:42 +00:00
lda #S.PS.F.DUPENV
bit PS.Flags need to create ENV ?
beq .6 no...
sta (ZPPtr3) Mark this PS with DUPENV flag
ldy #S.PS.hENV dup hENV from parent PS
2016-08-17 06:25:58 +00:00
lda (pPs),y
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jsr PS.DupEnv
bcs .9
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ldy #S.PS.hENV
bra .8
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.6 ldy #S.PS.hENV reuse hENV from parent PS
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lda (pPs),y
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.8 sta (ZPPtr3),y
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2018-11-28 14:58:42 +00:00
ldy #S.PS.hStdIn
2016-08-17 06:25:58 +00:00
.81 lda (pPs),y
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sta (ZPPtr3),y
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iny
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cpy #S.PS.hStdErr+1
2016-08-17 06:25:58 +00:00
bne .81
ldy #S.PS.PID
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lda (pPs),y
ldy #S.PS.PPID
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sta (ZPPtr3),y
lda #S.PS.F.HOLD
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bit PS.Flags
beq .82
2016-08-17 06:25:58 +00:00
ora (pPs)
2018-10-15 06:25:40 +00:00
sta (pPs) HOLD parent PS
.82 lda #S.PS.F.INIT
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ora (ZPPtr3)
sta (ZPPtr3) Make this PS Init....
2017-01-12 17:43:45 +00:00
ldy #S.PS.CPID
lda CORE.LastPSID
2017-01-12 17:43:45 +00:00
sta (pPs),y
clc Exit with A=PSID
.9 rts
2016-08-17 06:25:58 +00:00
*--------------------------------------
2018-11-22 16:39:41 +00:00
PS.Load >PUSHWI K.S.STAT
>LDYA PS.ArgV
>SYSCALL stat BANK 1
bcs .99
lda K.S.STAT+S.STAT.P.TYPE
cmp #S.FI.T.BIN
beq PS.LoadBIN
cmp #S.FI.T.TXT
bne .98
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* beq .10
* cmp #S.FI.T.SYS
* bra *
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.10 jsr PS.LoadGetHeader
bcs .99
>LDYAI PS.Load.ROOT
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jsr K.GetEnv ZPPtr3 Trashed
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bcs .97
>STYA .21+1
ldx #$ff
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.2 inx
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.21 lda $ffff,x SELF MODIFIED
sta K.IOBuf,x
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bne .2
ldy #0
.3 lda K.IOBuf+128,y
cmp PS.Load.HEADER,y
bne .98
iny
cpy #3
bne .3
.4 iny
inx
lda K.IOBuf+128-1,y
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sta K.IOBuf-1,x
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beq .5
eor #C.CR
bne .4
sta K.IOBuf-1,x
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2018-12-03 12:32:46 +00:00
.5 >PUSHWI K.S.STAT
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>LDYAI K.IOBuf
>SYSCALL stat BANK 1
bcs .99
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lda PS.hMem Restore ZPPtr3 trashed by GetEnv
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jsr K.GetMemPtr
>STYA ZPPtr3
>LDYAI K.IOBuf
2018-11-23 07:02:00 +00:00
2018-11-22 16:39:41 +00:00
bra PS.LoadBIN.YA
.97 lda #E.BADPATH
.HS 2C
.98 lda #E.IBIN
sec
.99 rts
2018-11-28 14:58:42 +00:00
PS.LoadBIN >LDYA PS.ArgV
2018-11-22 16:39:41 +00:00
PS.LoadBIN.YA jsr BIN.Load
2016-08-17 06:25:58 +00:00
bcs .9
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>STYA ZPPtr4 save PTR to Code Segment
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phy
ldy #S.PS.ZP.CODE+1
sta (ZPPtr3),y save pCode HI...
dey
pla
sta (ZPPtr3),y save pCode LO...
2016-08-17 06:25:58 +00:00
txa
ldy #S.PS.hCS
sta (ZPPtr3),y save CS hMem in S.PS
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* jsr K.GetMemByID
* jsr PS.SetMemOwner Set Ownership
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ldy #H.BIN.F Get Bin S.PS.F
lda (ZPPtr4),y
beq .1
ldy #S.PS.F update PS S.PS.F
ora (ZPPtr3),y
sta (ZPPtr3),y
.1 ldy #H.BIN.DS.SIZE+1
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lda (ZPPtr4),y Load DS.SIZE HI
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tax
dey
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ora (ZPPtr4),y
2016-08-17 06:25:58 +00:00
beq .2 DS.SIZE=0...
lda (ZPPtr4),y
tay
txa Y,A = DS.SIZE
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ldx #S.MEM.F.INIT0+S.MEM.F.DATA
jsr MEM.GetMem.YAX
2016-08-17 06:25:58 +00:00
bcs .9
phy
ldy #S.PS.ZP.DATA+1
sta (ZPPtr3),y save pData HI...
dey
pla
sta (ZPPtr3),y save pData LO...
2016-08-17 06:25:58 +00:00
txa
ldy #S.PS.hDS
sta (ZPPtr3),y save DS hMem in S.PS
2018-10-17 15:31:29 +00:00
jsr PS.SetMemOwner Set Ownership
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.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 $100
lda #1 SS.SIZE.HI
.HS 2C bit abs
.3 lda #0
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ldx #S.MEM.F.ALIGN+S.MEM.F.STACK
jsr MEM.GetMem.YAX
bcs .9
ldy #S.PS.ZP.STACK+1
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sta (ZPPtr3),y save pStack HI...(LO already set to Stack TOP)
txa
ldy #S.PS.hSS
sta (ZPPtr3),y save SS hMem in S.PS
jsr PS.SetMemOwner Set Ownership
2018-07-05 05:42:16 +00:00
ldy #H.BIN.ZP.SIZE
lda (ZPPtr4),y
clc
adc #8 Add room for 4 saved PTR
ldy #S.PS.ZP.SIZE
sta (ZPPtr3),y
clc
.9 rts
2016-08-17 06:25:58 +00:00
*--------------------------------------
2018-11-22 16:39:41 +00:00
PS.LoadGetHeader
>PUSHWI 0 Aux type
>PUSHBI S.FI.T.TXT
>PUSHBI O.RDONLY
>LDYA PS.ArgV
>SYSCALL fopen
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bcs PS.LoadGetHeader.RTS
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sta .1+1
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>PUSHWI 128
>PUSHWI K.IOBuf+128
.1 lda #$ff SELF MODIFIED
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>SYSCALL fread
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php
pha
lda .1+1
>SYSCALL fclose
pla
plp
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PS.LoadGetHeader.RTS
rts
2018-11-22 16:39:41 +00:00
*--------------------------------------
PS.Load.ROOT .AZ "ROOT"
PS.Load.HEADER .AZ "#!/"
*--------------------------------------
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* PS.DupEnv
* In:
* A = ENV hMem To Duplicate
* Out:
* A = hMem to new ENV
* X = Count
*--------------------------------------
PS.DupEnv jsr K.GetMemPtr
>STYA ZPPtr1
>LDYAI K.ENV.SIZE
jsr K.GetMem
bcs .9
>STYA ZPPtr2 Target Buffer
phx save hMem
jsr PS.SetMemOwner Set Ownership
jsr PS.AddPtr1ToStrVUntil0
pla hMem
clc
.9 rts
*--------------------------------------
2018-11-23 07:02:00 +00:00
* hBIN + PS.ArgV -> #S.PS.hARGV
*--------------------------------------
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PS.AddArgV stz PS.ArgSize
stz PS.ArgSize+1
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lda K.IOBuf
2018-11-23 07:02:00 +00:00
beq .10
2018-11-28 14:58:42 +00:00
>LDYAI K.IOBuf
2018-11-23 16:20:19 +00:00
jsr K.strlen
iny +1 for \0
2019-01-04 13:17:31 +00:00
>STYA PS.ArgSize
2018-11-23 16:20:19 +00:00
ldx #0 ARGC-1
.HS 2C
2018-11-23 07:02:00 +00:00
2018-11-23 16:20:19 +00:00
.10 ldx #$ff ARGC-1
2018-11-23 07:02:00 +00:00
>LDYA PS.ArgV
>STYA ZPPtr1
2018-11-23 16:20:19 +00:00
.1 lda (ZPPtr1)
2018-11-23 07:02:00 +00:00
beq .4
2018-11-23 16:20:19 +00:00
inx
2018-11-23 07:02:00 +00:00
ldy #0
.2 iny
2018-11-23 16:20:19 +00:00
lda (ZPPtr1),y
2018-11-23 07:02:00 +00:00
bne .2
tya
sec
2019-01-04 13:17:31 +00:00
adc PS.ArgSize
sta PS.ArgSize
2018-11-23 07:02:00 +00:00
bcc .3
2019-01-04 13:17:31 +00:00
inc PS.ArgSize+1
2018-11-23 07:02:00 +00:00
2018-12-20 16:23:43 +00:00
.3 jsr MEM.AddYp1ToPtr1
2018-11-23 07:02:00 +00:00
bra .1
2018-11-23 16:20:19 +00:00
.4 txa
ldy #S.PS.ARGC
sta (ZPPtr3),y
2019-01-04 13:17:31 +00:00
>LDYA PS.ArgSize Add 1 for ending 0
2018-11-23 07:02:00 +00:00
iny
bne .5
inc
2018-11-23 16:20:19 +00:00
.5 jsr K.GetMem
2018-12-20 16:23:43 +00:00
bcs PS.AddPtr1ToStrV.8
2018-11-23 07:02:00 +00:00
2018-11-23 16:20:19 +00:00
>STYA ZPPtr2 Target Buffer
2018-11-22 16:39:41 +00:00
txa
2018-11-23 16:20:19 +00:00
ldy #S.PS.hARGV
2018-11-22 16:39:41 +00:00
sta (ZPPtr3),y
2018-10-15 15:39:21 +00:00
2018-11-28 14:58:42 +00:00
lda K.IOBuf
2018-11-23 16:20:19 +00:00
beq .6
2018-10-12 15:47:57 +00:00
2018-11-28 14:58:42 +00:00
>LDYAI K.IOBuf
2018-11-23 16:20:19 +00:00
>STYA ZPPtr1
jsr PS.AddPtr1ToStrV
2018-10-12 15:47:57 +00:00
2018-11-23 16:20:19 +00:00
.6 >LDYA PS.ArgV
>STYA ZPPtr1
2018-10-11 15:23:06 +00:00
*--------------------------------------
2018-12-20 16:23:43 +00:00
PS.AddPtr1ToStrVUntil0
2018-10-15 06:25:40 +00:00
.1 lda (ZPPtr1)
sta (ZPPtr2)
2018-12-20 16:23:43 +00:00
beq PS.AddPtr1ToStrV.8 Ending \0
2016-08-17 06:25:58 +00:00
2018-11-23 16:20:19 +00:00
jsr PS.AddPtr1ToStrV
bra .1
*--------------------------------------
PS.AddPtr1ToStrV
2018-12-03 12:32:46 +00:00
ldy #$ff
2018-10-15 06:25:40 +00:00
.2 iny
lda (ZPPtr1),y
sta (ZPPtr2),y
bne .2
2018-12-20 16:23:43 +00:00
jsr MEM.AddYp1ToPtr1
2018-10-15 06:25:40 +00:00
2018-11-23 16:20:19 +00:00
tya
2018-10-15 06:25:40 +00:00
sec
adc ZPPtr2
sta ZPPtr2
2018-12-20 16:23:43 +00:00
bcc PS.AddPtr1ToStrV.8
2017-01-12 17:43:45 +00:00
inc ZPPtr2+1
2018-11-23 16:20:19 +00:00
2018-12-20 16:23:43 +00:00
PS.AddPtr1ToStrV.8
rts
*--------------------------------------
2017-10-27 14:56:46 +00:00
PS.SetMemOwner lda CORE.LastPSID
ldy #S.MEM.OWNERPID
sta (ZPMEMMGR),y
rts
*/--------------------------------------
2018-12-04 13:20:35 +00:00
* # ExecL
* ## C
* `int kill(short int pid, short int sig);`
* ## ASM
* `>PUSHB sig`
* `lda pid`
* `>SYSCALL kill`
* ## RETURN VALUE
* A = Child PSID
*\--------------------------------------
K.Kill cmp #0
beq .99 CS
jsr CORE.GetPSByID
bcs .99
>STYA ZPPtr1
>PULLA
cmp #2
bcs .9
asl
tax
jmp (.1,x)
.1 .DA K.Kill.0
.DA K.Kill.1
.9 lda #E.SYN
* sec
rts
.99 >RET 1
*--------------------------------------
K.Kill.1 lda (ZPPtr1)
and #$33
ora #S.PS.F.QUIT
sta (ZPPtr1)
2018-12-18 14:37:07 +00:00
K.Kill.0
2018-12-04 13:20:35 +00:00
clc
rts
*--------------------------------------
2016-08-17 06:25:58 +00:00
MAN
2018-11-17 17:17:13 +00:00
SAVE USR/SRC/SYS/KERNEL.S.PS
LOAD USR/SRC/SYS/KERNEL.S
2016-08-17 06:25:58 +00:00
ASM