mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-19 12:31:56 +00:00
1034 lines
18 KiB
Plaintext
1034 lines
18 KiB
Plaintext
NEW
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AUTO 3,1
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*/--------------------------------------
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* # ExecL
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* ## C / CSH
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* `int execl(const char *cmdline, short int flags);`
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* ## ASM
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* `>PUSHW cmdline`
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* `>PUSHB flags`
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* `>SYSCALL execl`
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* ## RETURN VALUE
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* A = Child PSID
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*\--------------------------------------
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K.ExecL >PULLB PS.Flags
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>LDYAI 256
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jsr K.GetMem
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bcs .99
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stx .90+1
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>STYA PS.ArgV
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>PUSHYA
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jsr K.Arg2ArgV cmdline on stack, push buffer
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bcs .9
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jsr PS.Exec
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.9 php
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pha
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.90 lda #$ff SELF MODIFIED
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jsr K.FreeMem
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pla
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plp
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.99 rts
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*/--------------------------------------
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* # ExecV
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* ## C / CSH
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* `int execv(const char* argv[], short int flags);`
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* ## ASM
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* `>PUSHW argv`
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* `>PUSHB flags`
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* `>SYSCALL execv`
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* ## RETURN VALUE
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* A = Child PSID
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*\--------------------------------------
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K.ExecV >PULLB PS.Flags
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>PULLW PS.ArgV
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PS.Exec jsr PS.CreateChild A=PID,Child S.PS at PS.NewPSPtr,PS.Load.hMem
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bcs .9
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sta .8+1
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stz K.IOBuf If !=0 after PS.Load, it's a script
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jsr PS.Load
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bcs .90
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jsr PS.AddArgV K.IOBuf= /.../SHELL, K.Buf256=/.../SCRIPT
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bcc .8 or K.IOBuf= 0, K.Buf256=/.../BINFILE
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.90 pha save error code
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>PUSHBI 2
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lda .8+1
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jsr K.Kill
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pla get back error code
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sec
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rts
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.8 lda #$ff SELF MODIFIED
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* clc
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.9
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PS.Exec.RTS rts
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*/--------------------------------------
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* # Fork
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* ## C
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* `short int fork();`
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* ## ASM
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* `>SYSCALL fork`
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* ## RETURN VALUE
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* A = Child PSID
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*\--------------------------------------
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K.Fork jsr PS.CreateChild A=PID,Child S.PS at PS.NewPSPtr,PS.Load.hMem
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bcs PS.Exec.RTS
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sta .8+1
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ldy #S.PS.S
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lda #S.PS.S.RUN
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sta (PS.NewPSPtr),y
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ldy #S.PS.hCS
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lda (ZPPtr1),y
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sta (PS.NewPSPtr),y
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jsr MEM.GetMemByID
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jsr Mem.IncRefCnt
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ldy #S.MEM.PTR+1
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lda (ZPMemMgrSPtr),y
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pha
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dey
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lda (ZPMemMgrSPtr),y
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ldy #S.PS.ZP.CODE+1
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sta (PS.NewPSPtr),y
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dey
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pla
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sta (PS.NewPSPtr),y
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ldy #S.PS.hDS
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lda (ZPPtr1),y
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jsr MEM.Dup
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bcs .9
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ldy #S.PS.hDS
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sta (PS.NewPSPtr),y
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jsr K.GetMemPtr
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phy
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ldy #S.PS.ZP.DATA+1
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sta (PS.NewPSPtr),y
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dey
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pla
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sta (PS.NewPSPtr),y
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ldy #S.PS.hSS
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lda (ZPPtr1),y
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jsr MEM.Dup
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bcs .9
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ldy #S.PS.hSS
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sta (PS.NewPSPtr),y
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jsr K.GetMemPtr
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phy
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ldy #S.PS.ZP.STACK+1
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sta (PS.NewPSPtr),y
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dey
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pla
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sta (PS.NewPSPtr),y
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ldy #S.PS.hARGV
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lda (ZPPtr1),y
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jsr MEM.Dup
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bcs .9
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ldy #S.PS.hARGV
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sta (PS.NewPSPtr),y
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dey
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lda (ZPPtr1),y S.PS.ARGC
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sta (PS.NewPSPtr),y
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ldy #S.PS.ARGC
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sta (PS.NewPSPtr),y
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iny S.PS.hARGV
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txa
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sta (PS.NewPSPtr),y
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ldy #S.PS.A
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lda #0
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sta (PS.NewPSPtr),y Forked PS will get A=PSID=0
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iny
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.1 lda (ZPPtr1),y
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sta (PS.NewPSPtr),y
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iny
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cpy #S.PS.hSession
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bne .1
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ldy #S.PS.ZP.LOCAL
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.2 lda (ZPPtr1),y
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sta (PS.NewPSPtr),y
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iny
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cpy #S.PS
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bne .2
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.8 lda #$ff SELF MODIFIED
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* clc
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.9 rts
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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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*--------------------------------------
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PS.CreateChild ldx #0
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bra .2 Skip PS0
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.1 lda PS.Table.PID,x
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beq .4 Found an empty slot
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.2 inx
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cpx CORE.PSCount
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bne .1
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cpx #K.PS.MAX
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bne .3
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lda #E.OOH
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sec
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rts
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.99 plx
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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
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lda CORE.LastPSID
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jsr CORE.GetPS Y=PS Index, X,A unmodified
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bcc .4 running...loop
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lda CORE.LastPSID
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sta PS.Table.PID,x
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phx save PS Index
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>LDYAI S.PS
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jsr K.GetMem0 Blank Everything in this S.PS
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bcs .99
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>STYA PS.NewPSPtr
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txa
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plx
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sta PS.Table.hPS,x
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jsr Mem.SetOwner Set Ownership
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lda PS.Flags
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and #S.PS.F.CLOSEONX
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sta (PS.NewPSPtr)
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lda CORE.LastPSID
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ldy #S.PS.PID
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sta (PS.NewPSPtr),y
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lda #S.PS.F.NOHUP
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bit PS.Flags
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beq .5
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lda PS.Table.hPS Select PS0
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jsr K.GetMemPtr
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bra .6
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.5 >LDYA pPs
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.6 >STYA ZPPtr1 = Parent process
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ldy #S.PS.PID
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lda (ZPPtr1),y
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dey #S.PS.PPID
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sta (PS.NewPSPtr),y
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ldy #S.PS.hCWD copy hPREFIX...
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lda (ZPPtr1),y
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jsr K.GetMemPtr
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jsr K.StrDup
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bcs .9
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jsr Mem.SetOwner Set Ownership
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txa
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ldy #S.PS.hCWD
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sta (PS.NewPSPtr),y
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ldy #S.PS.hENV
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lda (ZPPtr1),y
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jsr MEM.DupX dup hENV from parent PS
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bcs .9
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ldy #S.PS.hENV
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sta (PS.NewPSPtr),y
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sta SETWRITEAUX
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jsr Mem.SetOwner Set Ownership
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sta CLRWRITEAUX
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ldy #S.PS.hStdIn
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.7 lda (ZPPtr1),y
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sta (PS.NewPSPtr),y
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iny
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cpy #S.PS.hStdErr+1
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bne .7
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ldy #S.PS.hSession
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lda (ZPPtr1),y
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sta (PS.NewPSPtr),y
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* tax
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* lda S.Table.hSID-1,x
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* jsr MEM.GetMemByID
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* jsr MEM.IncRefCnt
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lda #S.PS.F.HOLD
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bit PS.Flags
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beq .8
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ora (ZPPtr1)
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sta (ZPPtr1) HOLD parent PS
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lda CORE.LastPSID
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ldy #S.PS.CPID
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sta (ZPPtr1),y
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.8
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* lda #S.PS.S.INIT
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* ldy #S.PS.S
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* sta (PS.NewPSPtr),y Make this PS Init....
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lda CORE.LastPSID Exit with A=PSID
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clc
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rts
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.9 pha
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>PUSHBI 2
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lda CORE.LastPSID
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jsr K.Kill
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pla
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sec
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rts
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*--------------------------------------
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PS.Load ldy #$ff
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.1 iny
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lda (PS.ArgV),y
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beq .2 no / in path...try search in PATH
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cmp #'/'
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bne .1
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>LDYA PS.ArgV found /, some path specified, no search
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jsr FS.STAT.YA
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bcc .6 REAL path in K.Buf256
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.99 rts
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.2 >LDYA PS.ArgV
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jsr PS.Find.PATH Get fullpath in K.Buf256
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bcc .6
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>LDYA PS.ArgV
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jsr PS.Find.CWD
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bcs .99
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.6 lda K.S.STAT+S.STAT.P.TYPE
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cmp #S.FI.T.BIN
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bne .7
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jmp PS.LoadBIN
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.7 cmp #S.FI.T.TXT
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beq PS.Load.SCRIPT
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cmp #S.FI.T.SYS
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bne PS.Load.IPATH
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jsr PS.Buf2IO .SYSTEM -> IOBUF
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* ldy #$ff
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*.8 iny
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* inx
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* lda PS.T,y
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* sta K.IOBuf-1,x
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* bne .8
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>LDYAI PS.SHUTDOWN
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jsr PS.Find.PATH
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bcs PS.Load.RTS
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jmp PS.LoadBIN
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*--------------------------------------
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PS.Load.IPATH lda #E.BADPATH
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.HS 2C
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PS.Load.IBIN lda #E.IBIN
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sec
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PS.Load.RTS rts
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*--------------------------------------
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PS.Load.SCRIPT jsr PS.Buf2IO
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jsr PS.LoadGetHeader
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bcs PS.Load.RTS
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>PUSHWI PS.Load.ROOT
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>PUSHWI K.Buf256 K.Buf256 = "$ROOT"
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>SYSCALL2 GetEnv
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bcs PS.Load.IPATH
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ldx #$ff
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.1 inx
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lda K.Buf256,x
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bne .1
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ldy #0
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.3 lda K.IOBuf+128,y Check HEADER= "#!/"
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cmp PS.Load.HEADER,y
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bne PS.Load.IBIN
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iny
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cpy #3
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bne .3
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.4 iny
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inx
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lda K.IOBuf+128-1,y
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sta K.Buf256-1,x K.Buf256 = "${ROOT}BIN/SHELL"
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beq .5
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eor #C.CR
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bne .4
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sta K.Buf256-1,x K.Buf256 = "${ROOT}BIN/SHELL\0"
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.5 >LDYAI K.Buf256
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jsr FS.STAT.YA
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bcs PS.Load.RTS
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lda K.S.STAT+S.STAT.P.TYPE
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cmp #S.FI.T.BIN
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beq PS.LoadBIN
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jmp PS.Load.IBIN
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*--------------------------------------
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PS.LoadBIN jsr BIN.Load K.Buf256= "${ROOT}BIN/SH\0", K.IOBuf=/.../SCRIPT
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bcs .9
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>STYA ZPPtr4 save PTR to Code Segment
|
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phy
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ldy #S.PS.ZP.CODE+1
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sta (PS.NewPSPtr),y save pCode HI...
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dey
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pla
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sta (PS.NewPSPtr),y save pCode LO...
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txa
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ldy #S.PS.hCS
|
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sta (PS.NewPSPtr),y save CS hMem in S.PS
|
||
|
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* jsr MEM.GetMemByID
|
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* jsr Mem.SetOwner Set Ownership
|
||
|
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ldy #H.BIN.F Get Bin S.PS.F
|
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lda (ZPPtr4),y
|
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beq .1
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ldy #S.PS.F update PS S.PS.F
|
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ora (PS.NewPSPtr),y
|
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sta (PS.NewPSPtr),y
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|
||
.1 ldy #H.BIN.DS.SIZE+1
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lda (ZPPtr4),y Load DS.SIZE HI
|
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tax
|
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dey
|
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ora (ZPPtr4),y
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||
|
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beq .2 DS.SIZE=0...
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|
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lda (ZPPtr4),y
|
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tay
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txa Y,A = DS.SIZE
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ldx #S.MEM.F.INIT0+S.MEM.F.DATA
|
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jsr MEM.GetMem.YAX
|
||
bcs .9
|
||
|
||
phy
|
||
ldy #S.PS.ZP.DATA+1
|
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sta (PS.NewPSPtr),y save pData HI...
|
||
dey
|
||
pla
|
||
sta (PS.NewPSPtr),y save pData LO...
|
||
|
||
txa
|
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ldy #S.PS.hDS
|
||
sta (PS.NewPSPtr),y save DS hMem in S.PS
|
||
|
||
jsr Mem.SetOwner Set Ownership
|
||
|
||
.2 ldy #H.BIN.SS.SIZE
|
||
lda (ZPPtr4),y Load SS.SIZE
|
||
|
||
tay
|
||
beq .3 SS.SIZE.LO=0, set as default $100
|
||
|
||
lda #$ff SS.SIZE.HI
|
||
|
||
.3 inc
|
||
|
||
ldx #S.MEM.F.NOCROSS+S.MEM.F.STACK
|
||
jsr MEM.GetMem.YAX
|
||
bcs .9
|
||
|
||
phy save pStack base LO
|
||
ldy #S.PS.ZP.STACK+1
|
||
sta (PS.NewPSPtr),y save pStack HI...
|
||
|
||
ldy #S.PS.ZP.LOCAL+1
|
||
sta (PS.NewPSPtr),y save pLocal HI...
|
||
|
||
pla make pStack = Base...
|
||
ldy #H.BIN.SS.SIZE ...plus Stack size
|
||
* clc
|
||
adc (ZPPtr4),y
|
||
|
||
ldy #S.PS.ZP.STACK
|
||
sta (PS.NewPSPtr),y
|
||
|
||
txa
|
||
ldy #S.PS.hSS
|
||
sta (PS.NewPSPtr),y save SS hMem in S.PS
|
||
clc Potentially CS from ADC (ZPPtr4),y
|
||
jmp Mem.SetOwner Set Ownership
|
||
.9 rts
|
||
*--------------------------------------
|
||
PS.LoadGetHeader
|
||
>PUSHWI K.IOBuf
|
||
>PUSHBI O.RDONLY
|
||
>PUSHBI S.FI.T.TXT
|
||
>PUSHWZ Aux type
|
||
>SYSCALL2 fopen
|
||
bcs .9
|
||
|
||
sta .1+1
|
||
|
||
>PUSHWI 128
|
||
>PUSHWI K.IOBuf+128
|
||
.1 lda #$ff SELF MODIFIED
|
||
>SYSCALL2 fread
|
||
php
|
||
pha
|
||
lda .1+1
|
||
>SYSCALL2 fclose
|
||
pla
|
||
plp
|
||
.9 rts
|
||
*--------------------------------------
|
||
PS.Load.ROOT .AZ "ROOT"
|
||
PS.Load.HEADER .AZ "#!/"
|
||
*--------------------------------------
|
||
* K.Buf256= /.../SHELL, K.IOBuf=/.../SCRIPT
|
||
* - or -
|
||
* K.Buf256=/.../BINFILE,K.IOBuf=0
|
||
* Buf256+IOBUF(?)+PS.ArgV[1,...] -> #S.PS.hARGV
|
||
*--------------------------------------
|
||
PS.AddArgV ldy #$ff In both cases, remove ARGV[0]
|
||
|
||
.60 iny
|
||
lda (PS.ArgV),y
|
||
bne .60
|
||
|
||
tya
|
||
sec
|
||
adc PS.ArgV
|
||
sta PS.ArgV
|
||
bcc .70
|
||
|
||
inc PS.ArgV+1 Skip old ARGV[0] = scriptename
|
||
|
||
.70 >LDYAI K.Buf256
|
||
jsr K.strlen
|
||
|
||
>STYA PS.ArgSize
|
||
|
||
lda K.IOBuf is there a /BIN/SHELL ?
|
||
beq .10
|
||
|
||
>LDYAI K.IOBuf
|
||
jsr K.strlen
|
||
jsr PS.AddYAp12ArgSize
|
||
|
||
.10 ldx #0 For now, 0 args...
|
||
lda K.IOBuf
|
||
beq .11 +1 for scriptpath
|
||
|
||
inx
|
||
|
||
.11 >LDYA PS.ArgV
|
||
>STYA ZPPtr1
|
||
|
||
.1 lda (ZPPtr1)
|
||
beq .4
|
||
|
||
inx
|
||
|
||
ldy #0
|
||
|
||
.2 iny
|
||
lda (ZPPtr1),y
|
||
bne .2
|
||
|
||
* lda #0
|
||
jsr PS.AddYAp12ArgSize
|
||
jsr SHARED.AddYp1ToPtr1
|
||
bra .1
|
||
|
||
.4 txa
|
||
ldy #S.PS.ARGC
|
||
sta (PS.NewPSPtr),y
|
||
|
||
>LDYA PS.ArgSize Add 1 for ending 0
|
||
iny
|
||
bne .5
|
||
inc
|
||
|
||
.5 iny Add ONE MORE ?????!!!!
|
||
bne .51
|
||
inc
|
||
|
||
.51 jsr K.GetMem
|
||
bcs .9
|
||
|
||
>STYA ZPPtr2 Target Buffer
|
||
txa
|
||
ldy #S.PS.hARGV
|
||
sta (PS.NewPSPtr),y
|
||
|
||
>LDYAI K.Buf256
|
||
jsr PS.AddYAToStrV
|
||
lda K.IOBuf
|
||
beq .6
|
||
|
||
>LDYAI K.IOBuf
|
||
jsr PS.AddYAToStrV
|
||
|
||
.6 >LDYA PS.ArgV
|
||
>STYA ZPPtr1
|
||
|
||
.7 lda (ZPPtr1)
|
||
sta (ZPPtr2)
|
||
beq .8 Ending \0
|
||
|
||
jsr PS.AddPtr1ToStrV
|
||
bra .7
|
||
|
||
.8 clc
|
||
.9 rts
|
||
*--------------------------------------
|
||
PS.AddYAToStrV >STYA ZPPtr1
|
||
PS.AddPtr1ToStrV
|
||
ldy #$ff
|
||
|
||
.2 iny
|
||
lda (ZPPtr1),y
|
||
sta (ZPPtr2),y
|
||
bne .2
|
||
|
||
jsr SHARED.AddYp1ToPtr1
|
||
jmp SHARED.AddYp1ToPtr2
|
||
*--------------------------------------
|
||
PS.AddYAp12ArgSize
|
||
pha
|
||
tya
|
||
sec +1 for \0
|
||
adc PS.ArgSize
|
||
sta PS.ArgSize
|
||
pla
|
||
adc PS.ArgSize+1
|
||
sta PS.ArgSize+1
|
||
rts
|
||
*/--------------------------------------
|
||
* # Kill
|
||
* ## C
|
||
* `int kill(short int pid, short int sig);`
|
||
* ## ASM
|
||
* `>PUSHB sig`
|
||
* `lda pid`
|
||
* `>SYSCALL kill`
|
||
* ## RETURN VALUE
|
||
* A = Child PSID
|
||
*\--------------------------------------
|
||
K.Kill.PID .BS 1
|
||
*--------------------------------------
|
||
K.Kill cmp #0
|
||
beq .99 CS
|
||
|
||
sta K.Kill.PID
|
||
jsr CORE.GetPSByID
|
||
bcs .99
|
||
|
||
>STYA ZPPtr1
|
||
>PULLA
|
||
cmp #2+1
|
||
bcs .9
|
||
|
||
asl
|
||
tax
|
||
jmp (.1,x)
|
||
|
||
.1 .DA K.Kill.0
|
||
.DA K.Kill.1
|
||
.DA K.Kill.2
|
||
|
||
.9 lda #E.SYN
|
||
* sec
|
||
rts
|
||
.99 >RET 1
|
||
*--------------------------------------
|
||
K.Kill.1 lda (ZPPtr1)
|
||
and #S.PS.F.SLEEP^$FF
|
||
sta (ZPPtr1)
|
||
|
||
ldy #S.PS.S
|
||
lda #S.PS.S.QUIT
|
||
sta (ZPPtr1),y
|
||
|
||
K.Kill.0 clc
|
||
rts
|
||
|
||
K.Kill.2 ldy #S.PS.hSession
|
||
lda (ZPPtr1),y
|
||
tax
|
||
* lda S.Table.hSID-1,x
|
||
* jsr K.FreeMem
|
||
|
||
ldy #S.PS.hENV
|
||
lda (ZPPtr1),y
|
||
>SYSCALL2 FreeStkObj
|
||
|
||
ldx #4
|
||
|
||
.11 ldy .10,x
|
||
lda (ZPPtr1),y
|
||
beq .12
|
||
|
||
jsr K.FreeMem
|
||
|
||
.12 dex
|
||
bpl .11
|
||
|
||
lda (ZPPtr1)
|
||
bit #S.PS.F.CLOSEONX
|
||
beq .1
|
||
|
||
ldy #S.PS.hStdOut
|
||
lda (ZPPtr1),y
|
||
>SYSCALL2 fclose
|
||
|
||
.1 lda K.Kill.PID
|
||
|
||
ldx #0
|
||
.2 cmp PS.Table.PID,x
|
||
beq .3
|
||
|
||
inx
|
||
cpx CORE.PSCount
|
||
bne .2
|
||
bra *
|
||
.3 stz PS.Table.PID,x
|
||
lda PS.TABLE.hPS,x
|
||
stz PS.TABLE.hPS,x
|
||
jmp K.FreeMem
|
||
|
||
.10 .DA #S.PS.hSS,#S.PS.hDS,#S.PS.hCS
|
||
.DA #S.PS.hARGV,#S.PS.hCWD
|
||
*/--------------------------------------
|
||
* # LoadTxtFile
|
||
* Load TXT a file in memory (with ending 0)
|
||
* ## C
|
||
* `int loadtxtfile ( const char * filename, short int flags, short int ftype, int auxtype );`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>PUSHW filename`
|
||
* `>PUSHB flags`
|
||
* `>PUSHB ftype`
|
||
* `>PUSHW auxtype`
|
||
* `>SYSCALL loadtxtfile`
|
||
* ## RETURN VALUE
|
||
* Y,A = File Length (without ending 0)
|
||
* X = hMem of Loaded File
|
||
*\--------------------------------------
|
||
K.LoadTxtFile sec
|
||
.HS 90 BCC
|
||
*/--------------------------------------
|
||
* # LoadFile
|
||
* Load a file in memory
|
||
* ## C
|
||
* `int loadfile ( const char * filename, short int flags, short int ftype, int auxtype );`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>PUSHW filename`
|
||
* `>PUSHB flags`
|
||
* `>PUSHB ftype`
|
||
* `>PUSHW auxtype`
|
||
* `>SYSCALL loadfile`
|
||
* ## RETURN VALUE
|
||
* Y,A = File Length
|
||
* X = hMem of Loaded File
|
||
*\--------------------------------------
|
||
K.LoadFile clc
|
||
|
||
ror PS.bTXT
|
||
|
||
>SYSCALL2 FOpen
|
||
bcs .99
|
||
|
||
sta PS.hFILE
|
||
|
||
jsr FS.FSTAT.A
|
||
bcs .98
|
||
|
||
lda K.S.Stat+S.STAT.SIZE+3
|
||
ora K.S.Stat+S.STAT.SIZE+2
|
||
bne .97
|
||
|
||
>LDYA K.S.Stat+S.STAT.SIZE
|
||
|
||
bit PS.bTXT Add 1 to buffer size for ending 0
|
||
bpl .1
|
||
iny
|
||
bne .1
|
||
inc
|
||
bne .1
|
||
|
||
.97 lda #E.FTB
|
||
|
||
.98 pha
|
||
lda PS.hFILE
|
||
>SYSCALL2 FClose
|
||
pla
|
||
sec
|
||
.99 rts
|
||
*--------------------------------------
|
||
.1 jsr K.GetMem
|
||
bcs .96
|
||
|
||
>STYA PS.MemPtr
|
||
stx PS.hMem
|
||
|
||
>PUSHWI $ffff
|
||
>PUSHW PS.MemPtr
|
||
lda PS.hFILE
|
||
>SYSCALL2 FRead
|
||
bcs .96
|
||
|
||
sty .7+1
|
||
sta .8+1
|
||
bit PS.bTXT
|
||
bpl .5
|
||
|
||
pha set ending 0
|
||
tya
|
||
|
||
* clc
|
||
|
||
adc PS.MemPtr
|
||
sta .4+1
|
||
pla
|
||
adc PS.MemPtr+1
|
||
sta .4+2
|
||
.4 stz $ffff Self Modified
|
||
|
||
.5 jsr .98 FClose
|
||
|
||
.7 ldy #$ff SELFMODIFIED
|
||
.8 lda #$ff SELFMODIFIED
|
||
ldx PS.hMem
|
||
clc
|
||
rts
|
||
|
||
.96 pha
|
||
|
||
jsr .98 FClose
|
||
|
||
lda PS.hMem
|
||
jsr K.FreeMem
|
||
pla
|
||
sec
|
||
.9 rts
|
||
*/--------------------------------------
|
||
* # FileSearch
|
||
* Search a file in the provided PATH list
|
||
* And return, if found, the full path to it.
|
||
* ## C
|
||
* `int filesearch( char *filename, char *searchpath, char *fullpath, stat *filestat);`
|
||
* ## ASM
|
||
* **In:**
|
||
* `>PUSHW filename`
|
||
* `>PUSHW fullpath`
|
||
* `>PUSHW searchpath`
|
||
* `>PUSHW filestat`
|
||
* `>SYSCALL filesearch`
|
||
* ## RETURN VALUE
|
||
* CC : success
|
||
* DstBuf = FilePath
|
||
* DstStat = S.STAT
|
||
* CS : not found
|
||
*\--------------------------------------
|
||
K.FileSearch >PULLW .4+1 DstStat
|
||
>PULLW .2+1 DstBuf
|
||
>PULLW PS.Find.2+1 path to search
|
||
>PULLW PS.Find.4+1 filename to find
|
||
|
||
stz PS.Find.98+1
|
||
|
||
jsr PS.Find
|
||
bcs K.FileSearch.RTS
|
||
|
||
ldx #$ff
|
||
.1 inx
|
||
lda K.Buf256,x
|
||
.2 sta $ffff,x Self Modified
|
||
bne .1
|
||
ldx #S.STAT-1
|
||
.3 lda K.S.STAT,x
|
||
.4 sta $ffff,x Self Modified
|
||
dex
|
||
bpl .3
|
||
* clc
|
||
K.FileSearch.RTS
|
||
rts
|
||
*--------------------------------------
|
||
PS.Find.CWD >STYA PS.Find.4+1 filename to find
|
||
ldy #S.PS.hCWD
|
||
lda (PS.NewPSPtr),y
|
||
jsr K.GetMemPtr
|
||
>STYA PS.Find.2+1
|
||
|
||
stz PS.Find.98+1
|
||
|
||
bra PS.Find
|
||
|
||
PS.Find.LIB ldx #0
|
||
.HS 2C BIT ABS
|
||
PS.Find.DRV ldx #2
|
||
.HS 2C BIT ABS
|
||
PS.Find.PATH ldx #4
|
||
|
||
>STYA PS.Find.4+1 filename to find
|
||
|
||
>PUSHW PS.VARS,x
|
||
>PUSHWI 0 allocate...
|
||
>SYSCALL2 GetEnv get value for Search Path
|
||
bcs K.FileSearch.RTS
|
||
|
||
>STYA PS.Find.2+1
|
||
stx PS.Find.98+1
|
||
|
||
PS.Find stz PS.Find.1+1
|
||
|
||
PS.Find.1 ldy #0 Self Modified Index in Search list string
|
||
|
||
ldx #0
|
||
|
||
PS.Find.2 lda $ffff,y SELF MODIFIED
|
||
|
||
beq PS.Find.3 end of string, try it....
|
||
|
||
iny
|
||
cmp #':'
|
||
beq PS.Find.3
|
||
|
||
sta K.Buf256,x
|
||
inx
|
||
bra PS.Find.2
|
||
|
||
PS.Find.3 txa
|
||
beq PS.Find.98 String is empty....nothing to try
|
||
|
||
sty PS.Find.1+1 save current index
|
||
|
||
ldy #0
|
||
|
||
PS.Find.4 lda $ffff,y Self Modified, Append Filename...
|
||
sta K.Buf256,x
|
||
beq PS.Find.5
|
||
|
||
iny
|
||
inx
|
||
bra PS.Find.4
|
||
|
||
PS.Find.5 >LDYAI K.Buf256
|
||
jsr FS.STAT.YA
|
||
bcs PS.Find.1 Failed...retry next path...
|
||
|
||
lda K.S.STAT+S.STAT.P.TYPE
|
||
cmp #S.FI.T.DIR Dir ?
|
||
beq PS.Find.1
|
||
jsr PS.Find.98 Discard Expanded hSrch list
|
||
|
||
clc
|
||
rts
|
||
|
||
PS.Find.98 lda #$ff SELF MODIFIED : Discard Search list
|
||
beq .1
|
||
|
||
jsr K.FreeMem
|
||
|
||
.1 lda #MLI.E.FNOTFND
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
PS.Buf2IO ldx #$ff
|
||
|
||
.1 inx Save Script name in IOBuf
|
||
lda K.Buf256,x
|
||
sta K.IOBuf,x
|
||
bne .1
|
||
|
||
rts
|
||
*--------------------------------------
|
||
PS.SHUTDOWN .AZ "shutdown"
|
||
*PS.T .AZ " -T 3"
|
||
PS.VARS .DA .1
|
||
.DA .2
|
||
.DA .3
|
||
.1 .AZ "LIB"
|
||
.2 .AZ "DRV"
|
||
.3 .AZ "PATH"
|
||
*/--------------------------------------
|
||
* # GetMemStat
|
||
* **In:**
|
||
* Y,A = Ptr to 24 bytes buffer
|
||
* ## RETURN VALUE
|
||
* Buffer filled with memory stats
|
||
*\--------------------------------------
|
||
K.GetMemStat >STYA ZPPtr1
|
||
|
||
ldy #23
|
||
ldx #7
|
||
|
||
.1 lda DevMgr.Stat,x
|
||
sta (ZPPtr1),y
|
||
dey
|
||
dex
|
||
bpl .1
|
||
sta SETREADAUX
|
||
jsr .2
|
||
sta CLRREADAUX
|
||
|
||
.2 ldx #7
|
||
|
||
.3 lda Mem.Table,x
|
||
sta (ZPPtr1),y
|
||
dey
|
||
dex
|
||
bpl .3
|
||
|
||
clc
|
||
rts
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE USR/SRC/SYS/KERNEL.S.PS
|
||
LOAD USR/SRC/SYS/KERNEL.S
|
||
ASM
|