mirror of
https://github.com/A2osX/A2osX.git
synced 2024-06-04 12:29:40 +00:00
742 lines
14 KiB
Plaintext
742 lines
14 KiB
Plaintext
NEW
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PREFIX
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AUTO 4,1
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*/--------------------------------------
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* # open
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* ## C
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* `hFD open(const char *pathname, short int flags);`
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* ## ASM
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* **In:**
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* `>PUSHB flags`
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* `>LDYA pathname`
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* `>SYSCALL open`
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* ## RETURN VALUE
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* A = hFD
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* REG File created on ProDOS : T=TXT,X=$0000
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*\--------------------------------------
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K.Open.FLAGS .BS 1
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K.Open.TYPE .BS 1
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K.Open.AUXTYPE .BS 2
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IO.hDev .BS 1
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IO.hFD .BS 1
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IO.hFILE .BS 1
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IO.Counter .BS 2
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*--------------------------------------
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K.Open jsr PFT.YAToMLIPATH
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>PULLB K.Open.FLAGS
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lda #S.FI.T.TXT
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sta K.Open.TYPE
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stz K.Open.AUXTYPE
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stz K.Open.AUXTYPE+1
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IO.Open.I ldx #5 $/DEV/
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cpx K.MLI.PATH
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bcs IO.OPEN.REG
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.1 lda K.MLI.PATH,x
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cmp IO.DEVDIR,x
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bne IO.OPEN.REG
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dex
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bne .1
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*--------------------------------------
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* /DEV/xxxxxx (CDEV,BDEV,LNK,DSOCK,SSOCK,PIPE)
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*--------------------------------------
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>LDYAI K.MLI.PATH+6 skip $/DEV/
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jsr K.GetDevByName
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bcc .7
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ldx #2
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.10 lda Nod.Table.hPath-2,x
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beq .3
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jsr K.GetMemPtr
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>STYA ZPPtr1
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ldy #0
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.2 lda (ZPPtr1),y
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iny
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cmp K.MLI.PATH,y
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bne .3
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cmp #0 end of string ?
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bne .2
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lda Nod.Table.hFD-2,x return hFD
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sta IO.hFD
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jsr K.GetMemPtr
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bra .71
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.3 inx
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cpx #K.NOD.MAX+2
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bne .10
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lda #MLI.E.NODEV
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* sec
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rts no OF found
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.7 stx IO.hDev
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.71 >STYA pFD
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lda (pFD) #S.FD.T
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tax
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jmp (.8,x)
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.8 .DA STDIO.IOERR REG
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.DA STDIO.IOERR DIR
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.DA IO.OPEN.CDEV
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.DA IO.OPEN.BDEV
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.DA STDIO.IOERR LNK
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.DA IO.OPEN.DSOCK
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.DA IO.OPEN.SSOCK
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.DA IO.OPEN.PIPE
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IO.OPEN.RTS rts
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*--------------------------------------
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IO.OPEN.REG >MLICALL MLIGETFILEINFO
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bcc IO.OPEN.REG.E Already Exists
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bit K.Open.FLAGS Create if not exists ?
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bpl IO.OPEN.RTS No, return MLI error
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ldx #2 Yes, Create...
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.1 lda K.Open.TYPE,x
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sta K.MLI.PARAMS+4,x File type,Aux type
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dex
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bpl .1
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lda #S.FI.ST.STD
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jsr IO.MLI.CREATE
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bcs IO.OPEN.RTS
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IO.OPEN.REG.E >LDYAI S.FD.REG
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ldx #S.MEM.F.INIT0+S.MEM.F.FD
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jsr MEM.GetMem.YAX
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bcs IO.OPEN.RTS
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>STYA pFD
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stx IO.hFD
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* ldy #S.FD.T Done by GetMem0
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* lda #S.FD.T.REG
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* sta (pFD),y
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jsr IO.MLIOPEN
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bcs IO.OPEN.ERR
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lda K.Open.FLAGS
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bit #O.WRONLY
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beq .20 Write mode ?
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and #O.APPEND Append ?
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bne .11 yes, go to end of file
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stz K.MLI.PARAMS+2
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stz K.MLI.PARAMS+3
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stz K.MLI.PARAMS+4
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>MLICALL MLISETEOF no, reset size to 0
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bra .21
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.11 >MLICALL MLIGETEOF
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bcs IO.OPEN.ERR
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>MLICALL MLISETMARK
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.21 bcs IO.OPEN.ERR
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.20 lda K.Open.FLAGS
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and #O.TEXT Text Mode ?
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beq .8
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lda #$FF
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sta K.MLI.PARAMS+2
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lda #C.CR
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sta K.MLI.PARAMS+3
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>MLICALL MLINEWLINE
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bcs IO.OPEN.ERR
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.8 lda IO.hFD
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rts
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IO.OPEN.ERR pha Save Error Code
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lda IO.hFD
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jsr K.Close
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pla
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sec
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rts
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*--------------------------------------
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IO.OPEN.CDEV
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IO.OPEN.BDEV jsr K.IOCTL.GetPDrv
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ldx #IOCTL.OPEN
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lda IO.hDev
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jsr K.IOCTL.pDrvJmp
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bcs .9
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lda IO.hDev
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.9 rts
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*--------------------------------------
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IO.OPEN.DSOCK
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*--------------------------------------
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IO.OPEN.SSOCK lda IO.hFD
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clc
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rts
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*--------------------------------------
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IO.OPEN.PIPE ldy #S.FD.PIPE.S
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lda (pFD),y
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inc
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sta (pFD),y
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lda IO.hFD
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clc
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rts
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*--------------------------------------
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IO.MLI.CREATE sta K.MLI.PARAMS+7 Storage Type
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ldx #3
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.1 lda DATELO,x
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sta K.MLI.PARAMS+8,x Create Date/Time
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dex
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bpl .1
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lda #S.FI.A.FULL
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sta K.MLI.PARAMS+3 Access
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>MLICALL MLICREATE
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rts
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*/--------------------------------------
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* # close
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* ## C
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* `int close(hFD fd);`
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* ## ASM
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* **In:**
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* `lda fd`
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* `>SYSCALL close`
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*\--------------------------------------
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K.Close sta IO.hFD
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jsr K.GetMemPtr
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>STYA pFD
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IO.Close.I lda (pFD) #S.FD.T
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tax
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jmp (.1,x)
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.1 .DA IO.CLOSE.REG
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.DA IO.CLOSE.DIR
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.DA IO.CLOSE.CDEV
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.DA IO.CLOSE.BDEV
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.DA STDIO.IOERR LNK
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.DA IO.CLOSE.DSOCK
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.DA IO.CLOSE.SSOCK
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.DA IO.CLOSE.PIPE
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*--------------------------------------
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IO.CLOSE.REG
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IO.CLOSE.DIR ldy #S.FD.REG.REF
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lda (pFD),y
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beq .1
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sta K.MLI.PARAMS+1
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>MLICALL MLICLOSE
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.1 ldy #S.FD.REG.IOBUF
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bra IO.CLOSE.FD
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*--------------------------------------
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IO.CLOSE.CDEV
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IO.CLOSE.BDEV
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*--------------------------------------
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IO.CLOSE.DSOCK
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IO.CLOSE.SSOCK
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clc
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rts
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*--------------------------------------
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IO.CLOSE.PIPE ldy #S.FD.PIPE.S
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lda (pFD),y
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bmi .1 remote PS closed its end
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lda #$80
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sta (pFD),y
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clc
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rts
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.1 jsr IO.CLOSE.NOD
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ldy #S.FD.PIPE.hMem
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IO.CLOSE.FD lda (pFD),y
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beq .1
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jsr K.FreeMem
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.1 lda IO.hFD
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jmp K.FreeMem
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*--------------------------------------
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IO.CLOSE.NOD ldx #2
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lda IO.hFD
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.1 cmp Nod.Table.hFD-2,x
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bne .2
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stz Nod.Table.hFD-2,x
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lda Nod.Table.hPath-2,x
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stz Nod.Table.hPath-2,x
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jmp K.FreeMem
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.2 inx
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cpx #K.Nod.MAX+2
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bne .1
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lda #E.INVH
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* sec
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rts
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*/--------------------------------------
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* # read (BLOCKING)
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* ## C
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* `int read(hFD fd, void *buf, int count);`
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* ## ASM
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* **In:**
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* `>PUSHWI count`
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* `>PUSHW buf`
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* `lda fd`
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* `>SYSCALL read`
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* ## RETURN VALUE
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* CC: Y,A = bytes read
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* CS: A = EC
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*\--------------------------------------
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K.Read sta IO.hFD
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jsr K.GetMemPtr
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>STYA pFD
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IO.Read.I lda (pFD) #S.FD.T
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tax
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jmp (.1,x)
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.1 .DA IO.READ.REG
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.DA STDIO.IOERR DIR
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.DA IO.READ.CDEV
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.DA STDIO.IOERR BDEV
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.DA STDIO.IOERR LNK
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.DA STDIO.IOERR DSOCK
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.DA IO.READ.SSOCK
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.DA IO.READ.PIPE
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*/--------------------------------------
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* # write (BLOCKING)
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* ## C
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* `int write(hFD fd, const void *buf, int count);`
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* ## ASM
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* **In:**
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* `>PUSHWI count`
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* `>PUSHW buf`
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* `lda fd`
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* `>SYSCALL write`
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* ## RETURN VALUE
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* CC: Y,A = bytes written
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* CS: A = EC
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*\--------------------------------------
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K.Write sta IO.hFD
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jsr K.GetMemPtr
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>STYA pFD
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IO.Write.I lda (pFD) #S.FD.T
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tax
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jmp (.1,x)
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.1 .DA IO.WRITE.REG
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.DA STDIO.IOERR DIR
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.DA IO.WRITE.CDEV
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.DA STDIO.IOERR BDEV
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.DA STDIO.IOERR LNK
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.DA STDIO.IOERR DSOCK
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.DA IO.WRITE.SSOCK
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.DA IO.WRITE.PIPE
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*--------------------------------------
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IO.READ.REG ldx #MLIREAD
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.HS 2C BIT ABS
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*--------------------------------------
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IO.WRITE.REG ldx #MLIWRITE
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ldy #S.FD.REG.REF
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lda (pFD),y
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sta K.MLI.PARAMS+1
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>PULLW K.MLI.PARAMS+2
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>PULLW K.MLI.PARAMS+4
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|
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lda #4 Param Count = 4 for MLIREAD & MLIWRITE
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jsr GP.MLICall
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bcs .9
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>LDYA K.MLI.PARAMS+6
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.9 rts
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*--------------------------------------
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* (pStack)+2 count
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* (pStack)+0 buf
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*--------------------------------------
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IO.READ.CDEV ldx #IOCTL.READ
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.HS 2C BIT ABS
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*--------------------------------------
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IO.WRITE.CDEV ldx #IOCTL.WRITE
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ldy #3
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.1 lda (pStack),y
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sta K.S.IOCTL+S.IOCTL.BUFPTR,y
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dey
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bpl .1
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jsr K.IOCTL.GetPDRV
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>LDYAI K.S.IOCTL
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jsr K.IOCTL.pDrvJmp
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bcc .8
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tay CS, A=0 ?
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bne .9 no, I/O error
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rts BLOCKING I/O
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.8 >LDYA K.S.IOCTL+S.IOCTL.BYTECNT
|
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.9 >RET 4
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*--------------------------------------
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IO.WRITE.SSOCK ldy #S.FD.SSOCK.WRITE
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.HS 2C BIT ABS
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*--------------------------------------
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IO.READ.SSOCK ldy #S.FD.SSOCK.READ
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lda (pFD),y
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tax Function Offset in LIB
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ldy #S.FD.SSOCK.IOHANDLER
|
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lda (pFD),y
|
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jsr K.GetMemPtr
|
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>STYA .1+1
|
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lda IO.hFD
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.1 jsr $FFFF SELF MODIFIED
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bcs .9
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phy
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ply
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bne .9
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tax
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bne .9
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inc pStack CC, Y,A = 0
|
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inc pStack
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inc pStack
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inc pStack keep buf/count on stack
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sec BLOCKING I/O
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.9 rts
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*--------------------------------------
|
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* (pStack)+2 count
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* (pStack)+0 buf
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*--------------------------------------
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IO.READ.PIPE ldy #S.FD.PIPE.Used+1
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lda (pFD),y Data ?
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dey
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ora (pFD),y
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bne .10 yes...
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|
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ldy #S.FD.PIPE.S
|
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lda (pFD),y
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bpl .11
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|
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jmp IO.READ.PIPE.99 Remote PS closed the Pipe
|
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|
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.11 lda #0 BLOCKING I/O
|
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sec
|
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rts
|
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|
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.10 >PULLW .3+1 get buf
|
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>PULLA get cnt lo
|
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eor #$ff
|
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sta IO.Counter
|
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|
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>PULLA get cnt hi
|
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eor #$ff
|
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sta IO.Counter+1
|
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|
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ldy #S.FD.PIPE.hMem
|
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lda (pFD),y
|
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jsr K.GetMemPtr
|
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>STYA .2+1
|
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|
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ldy #S.FD.PIPE.Head
|
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lda (pFD),y
|
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sta .4+1
|
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|
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dey S.FD.PIPE.Tail
|
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lda (pFD),y
|
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tay
|
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|
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ldx #0
|
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|
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.1 inc IO.Counter
|
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bne .2
|
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inc IO.Counter+1
|
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beq .5
|
||
|
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.2 lda $ffff,y SELF MODIFIED
|
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.3 sta $ffff,x SELF MODIFIED
|
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inx
|
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beq .8 moved $100 bytes
|
||
|
||
iny
|
||
.4 cpy #$ff SELF MODIFIED
|
||
bne .1
|
||
|
||
.5 clc
|
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.HS B0 BCS
|
||
|
||
.8 sec
|
||
lda #0
|
||
rol
|
||
sta IO.Counter+1
|
||
stx IO.Counter
|
||
|
||
tya
|
||
ldy #S.FD.PIPE.Tail
|
||
sta (pFD),y
|
||
|
||
txa
|
||
ldy #S.FD.PIPE.Free
|
||
clc
|
||
adc (pFD),y
|
||
sta (pFD),y
|
||
iny
|
||
lda IO.Counter+1
|
||
adc (pFD),y
|
||
sta (pFD),y
|
||
|
||
ldy #S.FD.PIPE.Used
|
||
sec
|
||
lda (pFD),y
|
||
sbc IO.Counter
|
||
sta (pFD),y
|
||
iny
|
||
lda (pFD),y
|
||
sbc IO.Counter+1
|
||
sta (pFD),y
|
||
|
||
ldy IO.Counter
|
||
lda IO.Counter+1 Y,A = bytes read
|
||
|
||
clc
|
||
rts
|
||
|
||
IO.READ.PIPE.99 lda #MLI.E.EOF
|
||
sec
|
||
>RET 4
|
||
*--------------------------------------
|
||
* (pStack)+2 count
|
||
* (pStack)+0 buf
|
||
*--------------------------------------
|
||
IO.WRITE.PIPE ldy #S.FD.PIPE.S
|
||
lda (pFD),y
|
||
|
||
bmi IO.READ.PIPE.99 Remote PS closed the Pipe
|
||
|
||
sec
|
||
ldy #S.FD.PIPE.Free
|
||
lda (pFD),y
|
||
ldy #2
|
||
sbc (pStack),y
|
||
tax
|
||
ldy #S.FD.PIPE.Free+1
|
||
lda (pFD),y
|
||
ldy #3
|
||
sbc (pStack),y
|
||
|
||
bcc .9 not enough room in PIPE
|
||
|
||
ldy #S.FD.PIPE.Free+1
|
||
sta (pFD),y
|
||
dey
|
||
txa
|
||
sta (pFD),y store new Free
|
||
|
||
>PULLW .2+1 get buf
|
||
|
||
>PULLA get cnt lo
|
||
pha
|
||
eor #$ff
|
||
sta IO.Counter
|
||
pla
|
||
ldy #S.FD.PIPE.Used
|
||
clc
|
||
adc (pFD),y
|
||
sta (pFD),y
|
||
|
||
>PULLA get cnt hi
|
||
pha
|
||
eor #$ff
|
||
sta IO.Counter+1
|
||
pla
|
||
ldy #S.FD.PIPE.Used+1
|
||
adc (pFD),y
|
||
sta (pFD),y
|
||
|
||
ldy #S.FD.PIPE.hMem
|
||
lda (pFD),y
|
||
jsr K.GetMemPtr
|
||
>STYA .3+1
|
||
|
||
ldy #S.FD.PIPE.Head
|
||
lda (pFD),y
|
||
tay
|
||
|
||
ldx #0
|
||
|
||
.1 inc IO.Counter
|
||
bne .2
|
||
inc IO.Counter+1
|
||
beq .8
|
||
|
||
.2 lda $ffff,x SELF MODIFIED
|
||
.3 sta $ffff,y SELF MODIFIED
|
||
|
||
iny
|
||
|
||
inx
|
||
bne .1
|
||
|
||
sec moved $100 bytes
|
||
.HS 90 BCC
|
||
|
||
.8 clc
|
||
tya
|
||
ldy #S.FD.PIPE.Head
|
||
sta (pFD),y
|
||
|
||
txa
|
||
tay
|
||
lda #0 Y,A = bytes written
|
||
rol
|
||
* clc
|
||
rts
|
||
|
||
.9 lda #0 BLOCKING I/O
|
||
sec
|
||
rts
|
||
*/--------------------------------------
|
||
* # IOCTL
|
||
* ## C
|
||
* `int ioctl(short int DevID, int request, void * param );`
|
||
* ## ASM
|
||
* `PUSHWI param`
|
||
* `PUSHBI request`
|
||
* `lda hDEV`
|
||
* `>SYSCALL IOCTL`
|
||
* ## RETURN VALUE
|
||
* Y,A = ...
|
||
*\--------------------------------------
|
||
K.IOCTL tax
|
||
lda Dev.Table,x
|
||
beq K.IOCTL.9
|
||
|
||
sta pFD+1
|
||
lda Dev.Table-1,x
|
||
sta pFD
|
||
|
||
jsr K.IOCTL.GetPDrv
|
||
|
||
>PULLA
|
||
tax request
|
||
|
||
>PULLYA param
|
||
|
||
K.IOCTL.pDrvJmp jmp (pDrv)
|
||
|
||
K.IOCTL.9 sec
|
||
lda #MLI.E.NODEV
|
||
>RET 3
|
||
*--------------------------------------
|
||
K.IOCTL.GetPDrv ldy #S.FD.DEV.DRVPTR
|
||
lda (pFD),y
|
||
sta pDRV
|
||
iny
|
||
lda (pFD),y
|
||
sta pDRV+1
|
||
rts
|
||
*--------------------------------------
|
||
IO.MLIOPEN >LDYAI 1024 get a ProDOS IOBUF
|
||
ldx #S.MEM.F.ALIGN+S.MEM.F.NOMOVE
|
||
jsr MEM.GetMem.YAX
|
||
bcs .9
|
||
|
||
>STYA K.MLI.PARAMS+3 Save Ptr to IOBUF for MLIOPEN call
|
||
txa
|
||
ldy #S.FD.REG.IOBUF
|
||
sta (pFD),y
|
||
|
||
>MLICALL MLIOPEN
|
||
bcs .9
|
||
|
||
lda K.MLI.PARAMS+5 get ref_num
|
||
ldy #S.FD.REG.REF
|
||
sta (pFD),y
|
||
|
||
sta K.MLI.PARAMS+1 Next MLI Calls are REF_NUM based
|
||
|
||
* clc
|
||
.9 rts
|
||
*--------------------------------------
|
||
IO.EOF tax
|
||
jmp (.1,x)
|
||
|
||
.1 .DA STDIO.IOERR REG
|
||
.DA STDIO.IOERR DIR
|
||
.DA IO.EOF.CDEV
|
||
.DA STDIO.IOERR BDEV
|
||
.DA STDIO.IOERR LNK
|
||
.DA STDIO.IOERR DSOCK
|
||
.DA IO.EOF.SSOCK
|
||
.DA IO.EOF.PIPE
|
||
*--------------------------------------
|
||
IO.EOF.CDEV >LDYAI K.IOBuf
|
||
>STYA K.S.IOCTL+S.IOCTL.BUFPTR
|
||
|
||
lda #S.IOCTL.STATCODE.GETRC
|
||
|
||
jsr K.GetDevStatus.I
|
||
bcs .9
|
||
|
||
lda K.IOBuf
|
||
ora K.IOBuf+1
|
||
.9 rts
|
||
*--------------------------------------
|
||
IO.EOF.SSOCK ldy #S.FD.SSOCK.EOF
|
||
|
||
lda (pFD),y
|
||
tax Function Offset in LIB
|
||
|
||
ldy #S.FD.SSOCK.IOHANDLER
|
||
lda (pFD),y
|
||
jsr K.GetMemPtr
|
||
>STYA .1+1
|
||
|
||
lda IO.hFD
|
||
|
||
.1 jmp $FFFF SELF MODIFIED
|
||
*--------------------------------------
|
||
IO.EOF.PIPE
|
||
lda #MLI.E.IO
|
||
sec
|
||
rts
|
||
*--------------------------------------
|
||
IO.DEVDIR >PSTR "/DEV/"
|
||
*--------------------------------------
|
||
MAN
|
||
SAVE USR/SRC/SYS/KERNEL.S.IO
|
||
LOAD USR/SRC/SYS/KERNEL.S
|
||
ASM
|