mirror of
https://github.com/A2osX/A2osX.git
synced 2024-09-29 09:55:53 +00:00
102 lines
2.4 KiB
Plaintext
102 lines
2.4 KiB
Plaintext
NEW
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PREFIX /A2OSX.BUILD
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AUTO 4,1
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*--------------------------------------
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* int open(const char *pathname, int flags);
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*--------------------------------------
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IO.OPEN jsr IO.SELECT
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*--------------------------------------
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* int close(int fd);
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*--------------------------------------
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IO.CLOSE
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*--------------------------------------
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* int read(int fd, void *buf, size_t count);
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*--------------------------------------
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IO.READ
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*--------------------------------------
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* int write(int fd, const void *buf, size_t count);
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*--------------------------------------
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IO.WRITE lda (pFD) #S.FD.T
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tax
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*--------------------------------------
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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.FIFO
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*--------------------------------------
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IO.WRITE.REG >PUSHW K.S.IOCTL+S.IOCTL.BUFPTR
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>PUSHW K.S.IOCTL+S.IOCTL.BYTECNT
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ldy #S.FD.REG.REF
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>PUSHB (pFD),y
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jmp K.FWrite
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*--------------------------------------
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IO.WRITE.CDEV ldy #S.FD.DEV.DRVPTR
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lda (pFD),y
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sta .1+1
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iny
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lda (pFD),y
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sta .1+2
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lda K.IOBuf
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ldx #IOCTL.WRITE
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.1 jmp $ffff
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*--------------------------------------
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IO.WRITE.SSOCK lda (pFD) #S.FD.HANDLER
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jsr K.GetMemPtr
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>STYA .1
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ldy #S.FD.SSOCK.HSKT
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>PUSHB (pFD),y
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>PUSHB K.IOBuf
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ldy #S.FD.SSOCK.WRITE
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lda (pFD),y
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tax Function Offset for write
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.1 jmp $ffff
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*--------------------------------------
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IO.WRITE.FIFO ldy #S.FD.FIFO.S
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lda (pFD),y
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beq .9 Remote PS did not opened yet the pipe
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cmp #S.FD.FIFO.S.Closed
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beq .99 Remote PS closed the Pipe
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ldy #S.FD.FIFO.hMem
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lda (pFD),y
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jsr K.GetMemPtr
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>STYA .1+2
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ldy #S.FD.FIFO.Head
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lda (pFD),y
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inc
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dey #S.FD.FIFO.Tail
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cmp (pFD),y
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beq .9 FIFO is full
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iny
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sta (pFD),y
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tay
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lda K.IOBuf
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.1 sta $ffff,y
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clc
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rts
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.9 lda #MLI.E.VOLFULL
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.HS 2C bit abs
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.99 lda #MLI.E.EOF
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sec
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rts
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*--------------------------------------
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IO.SELECT jsr K.GetMemPtr
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>STYA pFD
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rts
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*--------------------------------------
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MAN
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SAVE /A2OSX.SRC/SYS/KERNEL.S.IO
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LOAD /A2OSX.SRC/SYS/KERNEL.S
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ASM
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