mirror of
https://github.com/A2osX/A2osX.git
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220 lines
3.7 KiB
Plaintext
220 lines
3.7 KiB
Plaintext
PR#3
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PREFIX /A2OSX.BUILD
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LOMEM $A00
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INC 1
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AUTO 6
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*/--------------------------------------
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* # GetDevByIDA
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* ## IN:
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* A = DevID
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* ## OUT:
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* CC = OK, CS = ERROR
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* Y,A = DEVSLOT
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* note: X Unmodified
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*\--------------------------------------
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K.GetDevByIDA cmp DevMgr.Count
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bcs K.GetDevDNF
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asl
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asl
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asl
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asl
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php
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clc
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adc #DevMgr.Table
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tay
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plp
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lda #0
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adc /DevMgr.Table
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rts CC
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*/--------------------------------------
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* # GetDevByNameYA
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* ## IN:
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* Y,A = Ptr to device name (PStr)
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* ## OUT:
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* CC = OK, CS = ERROR
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* X = DEVID
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* Y,A = DEVSLOT
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*\--------------------------------------
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K.GetDevByNameYA
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>STYA ZPPtr1
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>LDYAI DevMgr.Table+S.DEV.NAME
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>STYA ZPPtr2
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ldx #0
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.1 lda (ZPPtr2)
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cmp (ZPPtr1)
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bne .3
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tay
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.2 lda (ZPPtr1),y
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cmp (ZPPtr2),y
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bne .3
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dey
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bne .2
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lda ZPPtr2
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sec
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sbc #S.DEV.NAME
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tay
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lda ZPPtr2+1
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sbc /S.DEV.NAME
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clc
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rts
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.3 lda ZPPtr2
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clc
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adc #S.DEV
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sta ZPPtr2
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bcc .4
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inc ZPPtr2+1
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.4 inx
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cpx DevMgr.Count
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bne .1
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K.GetDevDNF lda #MLI.ERR.NODEV CS from cpx/beq
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rts
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*/--------------------------------------
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* # GetDevStatusA
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* ## IN:
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* A = DevID
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* ## OUT:
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* CC = OK, CS = ERROR
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* Y,A = Ptr to S.DEVINFO
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*\--------------------------------------
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K.GetDevStatusA jsr K.GetDevByIDA
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bcs K.GetDevDNF
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>STYA ZPPtr1
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ldx #DEVMGR.STATUS
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jmp (ZPPtr1)
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*/--------------------------------------
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* # MkNodYA
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* return a hFile for a given Device Name
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* ## IN:
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* Y,A=DevName
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* ## OUT:
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* CC = OK, CS = ERROR
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* A = hFILE
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*\--------------------------------------
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K.MkNodYA jsr K.GetDevByNameYA Ptr1=NAME
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bcs .9
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>STYA pDev
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stx .1+1
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ldy #S.DEV.S
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lda (pDev),y
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bit #S.DEV.S.BLOCK
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bne .99
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txa Pass DEV.ID to OPEN
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ldx #DEVMGR.OPEN
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jsr pDevJmp
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bcs .9
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>LDYAI S.NODE.DEV
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jsr K.GetMem0YA
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bcs .9
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>STYA ZPPtr3 Ptr3=S.NODE
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ldy #S.NODE.T
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lda #S.NODE.T.CDEV
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sta (ZPPtr3),y
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ldy #S.NODE.DEV.ID
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.1 lda #$ff Self Modified
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sta (ZPPtr3),y
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ldy #S.NODE.DEV.JMP
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lda pDev
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sta (ZPPtr3),y
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iny
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lda pDev+1
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sta (ZPPtr3),y
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txa
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clc
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.9 rts
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.99 lda #MLI.ERR.IO
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sec
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rts
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*/--------------------------------------
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* # MkNodA
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* return a hFile for a given Socket
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* ## IN:
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* A=hSocket
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* ## OUT:
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* CC = OK, CS = ERROR
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* X = hFILE
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* Y,A = pFILE
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*\--------------------------------------
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K.MkNodA sta .1+1
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>LDYAI S.NODE.SSOCK
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jsr K.GetMem0YA
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bcs .9
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>STYA ZPPtr1
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ldy #S.NODE.T
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lda #S.NODE.T.SSOCK
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sta (ZPPtr1),y
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ldy #S.NODE.SSOCK.HSKT
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.1 lda #$ff
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sta (ZPPtr1),y
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>LDYA ZPPtr1
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.9 rts
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*/--------------------------------------
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* # MKFIFO
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* return a S.FILE to a new FIFO
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* ## IN:
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* ## OUT:
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* CC = OK, CS = ERROR
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* A = hFILE
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*\--------------------------------------
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K.MKFIFO >LDYAI 256
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jsr K.GetMemYA
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bcs .99
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stx .1+1 save FIFO buffer
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>LDYAI S.NODE.FIFO
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jsr K.GetMem0YA
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bcs .9
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>STYA ZPPtr1
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ldy #S.NODE.T
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lda #S.NODE.T.FIFO
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sta (ZPPtr1),y
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iny S.NODE.FIFO.hMem
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.1 lda #$ff Self Modified
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sta (ZPPtr1),y
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txa
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clc
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rts
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.9 pha save error code
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lda .1+1 get back FIFO buffer
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jsr K.FreeMemA
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pla
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sec
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.99 rts
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*--------------------------------------
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MAN
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SAVE /A2OSX.SRC/SYS/KERNEL.S.DEV
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LOAD /A2OSX.SRC/SYS/KERNEL.S
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ASM
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