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Kernel version 0.8 : KM.VSDRIVE, work in progress
This commit is contained in:
Rémy GIBERT
parent
bf25ef28a8
commit
be7ee09659
248
SYS/KM.VSDRIVE.S.txt
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248
SYS/KM.VSDRIVE.S.txt
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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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.OP 65C02
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.OR $2000
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.TF /A2OSX.BOOT/SYS/KM.VSDRIVE
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*--------------------------------------
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.INB /A2OSX.DEV/INC/MACROS.I
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.INB /A2OSX.DEV/INC/IO.I
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.INB /A2OSX.DEV/INC/MONITOR.I
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.INB /A2OSX.DEV/INC/PRODOS.I
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*--------------------------------------
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TmpPtr1 .EQ $0
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TmpPtr2 .EQ $2
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*--------------------------------------
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.INB DRV/X.SER.6551.S
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*--------------------------------------
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VSDRIVE.Init >LDAXI VSDRIVE.MSG0
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jsr VSDRIVE.Print
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jsr VSDRIVE.Check
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bcc .1
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>LDAXI VSDRIVE.MSG1
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jsr VSDRIVE.Print
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rts
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.1 jsr VSDRIVE.Detect
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bcc .2
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>LDAXI VSDRIVE.MSG2
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jsr VSDRIVE.Print
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rts
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.2 jsr VSDRIVE.Install
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>LDAXI VSDRIVE.MSG3
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jsr VSDRIVE.Print
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>DEBUG
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rts
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*--------------------------------------
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VSDRIVE.Check
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clc
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rts
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*--------------------------------------
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VSDRIVE.Detect
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.9 clc
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rts
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*--------------------------------------
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*--------------------------------------
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VSDRIVE.Install
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rts
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*--------------------------------------
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VSDRIVE.Print >STAX TmpPtr1
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ldy #0
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.1 lda (TmpPtr1),y
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beq .9
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ora #$80
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jsr COUT
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iny
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bne .1
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.9 jmp CROUT
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*--------------------------------------
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VSDRIVE.MSG0 >CSTR "VSDRIVE ('Vitual Serial Hard Drive') Driver For A2osX"
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VSDRIVE.MSG1 >CSTR "VSDRIVE Already Installed."
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VSDRIVE.MSG2 >CSTR "SSC Not Detected."
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VSDRIVE.MSG3 >CSTR "VSDRIVE Driver Successfully Installed."
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*--------------------------------------
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* Driver
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*--------------------------------------
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* OP = 2 : Write drv1
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* OP = 3 : Read drv1
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* OP = 4 : Write drv2
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* OP = 5 : Read drv2
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* CMD = $CE+OP+BLKLO+BLKHI+CHKSUM
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*--------------------------------------
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DRV.A2L .EQ $3E
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DRV.A2H .EQ $3F
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DRV.COMMAND .EQ $42
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DRV.UNITNUM .EQ $43
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DRV.BUFF .EQ $44
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DRV.BLKNUM .EQ $46
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*--------------------------------------
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DRV .EQ *
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.PH $D001 Main LC Bnk 1 $D001->$DFFF
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cld
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DRV.Slotn0 ldx #$ff Self Modified
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lda DRV.COMMAND
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beq .8 Status
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cmp #3
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beq .81 Format ....
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bcs .9 more....IO error
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eor #$ff exchange W=1,R=2
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inc W=2,R=3
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ldx DRV.UNITNUM
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bpl .1
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adc #2
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.1 jsr DRV.DO.CMD
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bcs .9
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.8 ldx #$ff return Status
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ldy #$ff
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.81 lda #0
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clc
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rts
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.9 lda #MLI.ERR.IO
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rts
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*--------------------------------------
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DRV.DO.CMD sta DRVDRV.CmdBuf.Cmd store cmd
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eor #$CE
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sta DRV.CmdBuf.Sum
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lda DRV.BLKNUM
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sta DRV.CmdBuf.Blk
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eor DRV.CmdBuf.Sum
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sta DRV.CmdBuf.Sum
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lda DRV.BLKNUM+1
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sta DRV.CmdBuf.Blk+1
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eor DRV.CmdBuf.Sum
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sta DRV.CmdBuf.Sum
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stz SSC.RESET,x
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lda #SSC.CTL.B115200+SSC.CTL.8D+SSC.CTL.1S+SSC.CMD.NOP
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sta SSC.CTL,x
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lda #SSC.CMD.RIRQDIS
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sta SSC.CMD,x
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* send CMD+CS
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ldy #0
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.1 lda DRV.CmdBuf,y
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jsr DRV.SSCSend
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bcs .9
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iny
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cpy #5
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bne .1
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* read back CMD
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ldy #0
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.2 jsr DRV.SSCGet
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bcs .9
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cmp DRV.CmdBuf,y
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bne .9
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iny
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cpy #4
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bne .2
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* skip CS
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iny
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.3 jsr DRV.SSCGet
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bcs .9
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sta DRV.CmdBuf,y
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eor DRV.CmdBuf.Sum
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sta DRV.CmdBuf.Sum
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iny
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cpy #9
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bne .3
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jsr DRV.SSCGet
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bcs .9
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cmp DRV.CmdBuf.Sum
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bne .9
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clc
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rts
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.9 sec
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rts
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*--------------------------------------
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DRV.CmdBuf .HS $CE
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DRV.CmdBuf.Cmd .BS 1
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DRV.CmdBuf.Blk .BS 2
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DRV.CmdBuf.Sum .BS 1
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DRV.CmdBuf.Time .BS 4
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*--------------------------------------
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DRV.BufCheckSum lda DRV.BUFF
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sta DRV.A2L
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lda DRV.BUFF+1
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inc
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sta DRV.A2H
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lda #0
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tay
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.1 eor (DRV.BUFF),y
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eor (DRV.A2L),y
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iny
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bne .1
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rts
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*--------------------------------------
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DRV.SSCSend
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.1 lda SSC.STATUS,x
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bit #SSC.STATUS.DCD+SSC.STATUS.DSR
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beq .9
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and #SSC.STATUS.TDRE Outgoing char?
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bne .1
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pla
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sta SSC.DATA,x
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clc
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rts
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.9 pla
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sec
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rts
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*--------------------------------------
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DRV.SSCGet
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.1 lda SSC.STATUS,x
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and #SSC.STATUS.RDRF incoming char?
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beq .1
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lda SSC.DATA,x
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clc
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rts
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*--------------------------------------
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.BS 4 Time,Date
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.EP
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*--------------------------------------
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DRV.SIZE .EQ *-DRV
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*--------------------------------------
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* CONTROL SECTION :
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*--------------------------------------
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.DO DRV.SIZE>255
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ERROR:DRV.SIZE too big
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.FIN
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*--------------------------------------
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MAN
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SAVE SYS/KM.VSDRIVE.S
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ASM
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