mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-22 16:31:07 +00:00
312 lines
6.4 KiB
Plaintext
312 lines
6.4 KiB
Plaintext
NEW
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AUTO 3,1
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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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.DUMMY
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.OR ZPTMP+20 7 Bytes
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IO.Open.FLAGS .BS 1
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IO.Open.TYPE .BS 1
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IO.Open.AUXTYPE .BS 2
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IO.hFD .BS 1
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.ED
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*--------------------------------------
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K.Open jsr PFT.YAToMLIPATH
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>PULLB IO.Open.FLAGS
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lda #S.FI.T.TXT
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sta IO.Open.TYPE
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stz IO.Open.AUXTYPE
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stz IO.Open.AUXTYPE+1
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*--------------------------------------
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UNISTD.Open ldx #5 /DEV/
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cpx K.MLI.PATH
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bcs .99
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.1 lda K.MLI.PATH,x
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cmp DEV.FIFO-1,x
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bne .99
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dex
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bne .1
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*--------------------------------------
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* /DEV/xxxxxx (CDEV,BDEV,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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jsr UNISTD.GetPFD
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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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*--------------------------------------
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.7 stx IO.hFD
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>STYA pFD
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.71 lda (pFD) #S.FD.T
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tax
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jmp (.8-2,x)
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.8
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* .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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.99 jmp IO.OPEN.REG
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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 jsr UNISTD.GetPFD
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UNISTD.Close 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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* # read
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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 jsr UNISTD.GetPFD
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UNISTD.Read 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
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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 jsr UNISTD.GetPFD
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UNISTD.Write 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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UNISTD.GetPFD sta IO.hFD
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jsr K.GetMemPtr
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>STYA pFD
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rts
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*--------------------------------------
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IO.OPEN.CDEV
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IO.OPEN.BDEV jsr SHARED.GetPDrv
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ldx #IOCTL.OPEN
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lda IO.hFD
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jsr SHARED.pDrvJmp
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bcs IO.WRITE.CDEV.RTS
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*--------------------------------------
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IO.OPEN.DSOCK
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*--------------------------------------
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IO.OPEN.SSOCK
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lda IO.hFD
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*--------------------------------------
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IO.CLOSE.CDEV
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IO.CLOSE.BDEV
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clc
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rts
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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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>PULLW K.S.IOCTL+S.IOCTL.BUFPTR
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>PULLW K.S.IOCTL+S.IOCTL.BYTECNT
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jsr SHARED.GetPDrv
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>LDYAI K.S.IOCTL
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jsr SHARED.pDrvJmp
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bcs .9
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>LDYA K.S.IOCTL+S.IOCTL.BYTECNT
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.9
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IO.WRITE.CDEV.RTS
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rts
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*--------------------------------------
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IO.CLOSE.DSOCK
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IO.CLOSE.SSOCK
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ldy #S.FD.SSOCK.CLOSE
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.HS 2C BIT ABS
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*--------------------------------------
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IO.EOF.SSOCK ldy #S.FD.SSOCK.EOF
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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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.HS 2C BIT ABS
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*--------------------------------------
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IO.WRITE.SSOCK ldy #S.FD.SSOCK.WRITE
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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 jmp $FFFF SELF MODIFIED
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*--------------------------------------
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IO.EOF.CDEV lda #S.IOCTL.STATCODE.EOF
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jmp SHARED.GetDevStatus
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*--------------------------------------
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* X = 0 > REG
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* X = 1 > DIR
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* X = 2 > PIPE
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*--------------------------------------
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IO.MkFD stx .8+1
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ldy IO.MkFD.Y,x
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lda #0
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ldx #S.MEM.F.INIT0+S.MEM.F.FD
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jsr MEM.GetMem.YAX
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bcs .9
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>STYA pFD
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stx IO.hFD
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.8 ldx #$ff SELF MODIFIED
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lda IO.MkFD.T,x
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sta (pFD) X = hFD, A = T
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* clc
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.9 rts
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IO.MkFD.Y .DA #S.FD.REG,#S.FD.DIR,#S.FD.PIPE
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IO.MkFD.T .DA #S.FD.T.REG,#S.FD.T.DIR,#S.FD.T.PIPE
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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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* # ChOwn
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* ## C
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* `short int chown(const char *pathname, short int owner, short int group);`
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* ## ASM
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* **In:**
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* `>PUSHW pathname`
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* `>PUSHB owner`
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* `>PUSHB group`
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* `>SYSCALL chown`
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* ## RETURN VALUE
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*\--------------------------------------
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K.ChOwn clc
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rts
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*--------------------------------------
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SHARED.GetPDrv ldy #S.FD.DEV.DRVPTR
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lda (pFD),y
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sta pDRV
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iny
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lda (pFD),y
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sta pDRV+1
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rts
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*--------------------------------------
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DEV.FIFO .AS "/dev/fifo" STAT,UNISTD
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*--------------------------------------
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MAN
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SAVE USR/SRC/SYS/KERNEL.S.UNISTD
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LOAD USR/SRC/SYS/KERNEL.S
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ASM
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