mirror of
https://github.com/A2osX/A2osX.git
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187 lines
3.2 KiB
Plaintext
187 lines
3.2 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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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.LastDevID
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beq .1
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bcs K.GetDevDNF
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.1 pha save ID
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asl
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asl
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asl
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asl
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adc #DevMgr.Table
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tay
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pla
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php
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lsr
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lsr
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lsr
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lsr
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plp
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adc /DevMgr.Table
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rts CC
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*/--------------------------------------
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* #GetDevIDByNameYA
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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 ZPQuickPtr1
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>LDYAI DevMgr.Table+S.DEV.NAME
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>STYA ZPQuickPtr2
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ldx #0
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.1 lda (ZPQuickPtr1)
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cmp (ZPQuickPtr2)
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bne .3
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tay
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.2 lda (ZPQuickPtr1),y
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cmp (ZPQuickPtr2),y
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bne .3
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dey
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bne .2
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lda ZPQuickPtr2
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sec
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sbc #S.DEV.NAME
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tay
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lda ZPQuickPtr2+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 ZPQuickPtr2
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clc
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adc #S.DEV
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sta ZPQuickPtr2
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bcc .4
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inc ZPQuickPtr2+1
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.4 cpx DevMgr.LastDevID
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inx
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bcc .1
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K.GetDevDNF lda #DEVMGR.ERRDNF
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rts
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*/--------------------------------------
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* #GetDevInfoA
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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.GetDevInfoA jsr K.GetDevByIDA
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bcs K.GetDevDNF
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>STYA ZPQuickPtr1
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ldx #DEVMGR.GETINFO
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jmp (ZPQuickPtr1)
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*/--------------------------------------
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* #MkNodYA
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* return a S.FILE from a given Device
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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,Ptr2=DEVSLOT
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bcs .9
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>PUSHWI S.NODE.DEV
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>PUSHBI S.MEM.F.INIT0
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jsr K.GetMem
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bcs .9
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>STYA ZPQuickPtr3 Ptr3=S.NODE
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ldy #S.DEV.DEVID
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lda (ZPQuickPtr2),y
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pha
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iny #S.DEV.F
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lda (ZPQuickPtr2),y
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asl CS if Block device
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ldy #S.NODE.T
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lda #S.NODE.T.CDEV
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adc #0 add CS if blok
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sta (ZPQuickPtr3),y
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iny #S.NODE.DEV.ID
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pla
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sta (ZPQuickPtr3),y
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clc
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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 >PUSHWI 256
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>PUSHBI S.MEM.F.INIT0
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jsr K.GetMem
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bcs .99
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phx save FIFO buffer
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>PUSHWI S.NODE.FIFO
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>PUSHBI S.MEM.F.INIT0
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jsr K.GetMem
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bcs .9
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>STYA ZPQuickPtr1
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ldy #S.NODE.T
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lda #S.NODE.T.FIFO
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sta (ZPQuickPtr1),y
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iny S.NODE.FIFO.hMem
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pla
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sta (ZPQuickPtr1),y
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txa
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clc
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rts
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.9 plx get back FIFO buffer
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pha save error code
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txa
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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 SYS/KERNEL.S.DEV
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LOAD SYS/KERNEL.S
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ASM
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